terraform/command/meta_backend_test.go

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package command
import (
"io/ioutil"
"os"
"path/filepath"
"reflect"
"sort"
"strings"
"testing"
"github.com/hashicorp/terraform/backend"
backendinit "github.com/hashicorp/terraform/backend/init"
backendlocal "github.com/hashicorp/terraform/backend/local"
"github.com/hashicorp/terraform/helper/copy"
"github.com/hashicorp/terraform/state"
"github.com/hashicorp/terraform/terraform"
"github.com/mitchellh/cli"
)
// Test empty directory with no config/state creates a local state.
func TestMetaBackend_emptyDir(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Get the backend
m := testMetaBackend(t, nil)
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Write some state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
s.WriteState(testState())
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify it exists where we expect it to
if isEmptyState(DefaultStateFilename) {
t.Fatalf("no state was written")
}
// Verify no backup since it was empty to start
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state should be empty")
}
// Verify no backend state was made
if !isEmptyState(filepath.Join(m.DataDir(), DefaultStateFilename)) {
t.Fatal("backend state should be empty")
}
}
// check for no state. Either the file doesn't exist, or is empty
func isEmptyState(path string) bool {
fi, err := os.Stat(path)
if os.IsNotExist(err) {
return true
}
if fi.Size() == 0 {
return true
}
return false
}
// Test a directory with a legacy state and no config continues to
// use the legacy state.
func TestMetaBackend_emptyWithDefaultState(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Write the legacy state
statePath := DefaultStateFilename
{
f, err := os.Create(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
err = terraform.WriteState(testState(), f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
}
// Get the backend
m := testMetaBackend(t, nil)
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("err: %s", err)
}
if actual := s.State().String(); actual != testState().String() {
t.Fatalf("bad: %s", actual)
}
// Verify it exists where we expect it to
if _, err := os.Stat(DefaultStateFilename); err != nil {
t.Fatalf("err: %s", err)
}
stateName := filepath.Join(m.DataDir(), DefaultStateFilename)
if !isEmptyState(stateName) {
t.Fatal("expected no state at", stateName)
}
// Write some state
next := testState()
next.Modules[0].Outputs["foo"] = &terraform.OutputState{Value: "bar"}
s.WriteState(testState())
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify a backup was made since we're modifying a pre-existing state
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state should not be empty")
}
}
// Test an empty directory with an explicit state path (outside the dir)
func TestMetaBackend_emptyWithExplicitState(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create another directory to store our state
stateDir := tempDir(t)
os.MkdirAll(stateDir, 0755)
defer os.RemoveAll(stateDir)
// Write the legacy state
statePath := filepath.Join(stateDir, "foo")
{
f, err := os.Create(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
err = terraform.WriteState(testState(), f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
}
// Setup the meta
m := testMetaBackend(t, nil)
m.statePath = statePath
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("err: %s", err)
}
if actual := s.State().String(); actual != testState().String() {
t.Fatalf("bad: %s", actual)
}
// Verify neither defaults exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
stateName := filepath.Join(m.DataDir(), DefaultStateFilename)
if !isEmptyState(stateName) {
t.Fatal("expected no state at", stateName)
}
// Write some state
next := testState()
next.Modules[0].Outputs["foo"] = &terraform.OutputState{Value: "bar"}
s.WriteState(testState())
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify a backup was made since we're modifying a pre-existing state
if isEmptyState(statePath + DefaultBackupExtension) {
t.Fatal("backup state should not be empty")
}
}
// Empty directory with legacy remote state
func TestMetaBackend_emptyLegacyRemote(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
os.MkdirAll(td, 0755)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create some legacy remote state
legacyState := testState()
_, srv := testRemoteState(t, legacyState, 200)
defer srv.Close()
statePath := testStateFileRemote(t, legacyState)
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if actual := state.String(); actual != legacyState.String() {
t.Fatalf("bad: %s", actual)
}
// Verify we didn't setup the backend state
if !state.Backend.Empty() {
t.Fatal("shouldn't configure backend")
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
if _, err := os.Stat(statePath + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Verify that interpolations result in an error
func TestMetaBackend_configureInterpolation(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-interp"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
_, err := m.Backend(&BackendOpts{Init: true})
if err == nil {
t.Fatal("should error")
}
}
// Newly configured backend
func TestMetaBackend_configureNew(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Newly configured backend with prior local state and no remote state
func TestMetaBackend_configureNewWithState(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-migrate"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "backend-new-migrate" {
t.Fatalf("bad: %#v", state)
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup does exist
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state is empty or missing")
}
}
// Newly configured backend with prior local state and no remote state,
// but opting to not migrate.
func TestMetaBackend_configureNewWithStateNoMigrate(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-migrate"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
if state := s.State(); state != nil {
t.Fatal("state is not nil")
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup does exist
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state is empty or missing")
}
}
// Newly configured backend with prior local state and remote state
func TestMetaBackend_configureNewWithStateExisting(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-migrate-existing"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Setup the meta
m := testMetaBackend(t, nil)
// suppress input
m.forceInitCopy = true
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "local" {
t.Fatalf("bad: %#v", state)
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup does exist
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state is empty or missing")
}
}
// Newly configured backend with prior local state and remote state
func TestMetaBackend_configureNewWithStateExistingNoMigrate(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-migrate-existing"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "remote" {
t.Fatalf("bad: %#v", state)
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup does exist
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup state is empty or missing")
}
}
// Newly configured backend with lgacy
func TestMetaBackend_configureNewLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("backup should be empty, but contains:\n", string(data))
}
}
// Newly configured backend with legacy
func TestMetaBackend_configureNewLegacyCopy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-new-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Setup the meta
m := testMetaBackend(t, nil)
// suppress input
m.forceInitCopy = true
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("nil state")
}
if state.Lineage != "backend-new-legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Verify we have no configured legacy in the state itself
{
if !state.Remote.Empty() {
t.Fatalf("legacy has remote state: %#v", state.Remote)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state matching config
func TestMetaBackend_configuredUnchanged(t *testing.T) {
defer testChdir(t, testFixturePath("backend-unchanged"))()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("nil state")
}
if state.Lineage != "configuredUnchanged" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Changing a configured backend
func TestMetaBackend_configuredChange(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state-2.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Changing a configured backend, copying state
func TestMetaBackend_configuredChangeCopy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change" {
t.Fatalf("bad: %#v", state)
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Changing a configured backend that supports only single states to another
// backend that only supports single states.
func TestMetaBackend_configuredChangeCopy_singleState(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change-single-to-single"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Register the single-state backend
backendinit.Set("local-single", backendlocal.TestNewLocalSingle)
defer backendinit.Set("local-single", nil)
// Ask input
defer testInputMap(t, map[string]string{
"backend-migrate-to-new": "yes",
"backend-migrate-copy-to-empty": "yes",
})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change" {
t.Fatalf("bad: %#v", state)
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Changing a configured backend that supports multi-state to a
// backend that only supports single states. The multi-state only has
// a default state.
func TestMetaBackend_configuredChangeCopy_multiToSingleDefault(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change-multi-default-to-single"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Register the single-state backend
backendinit.Set("local-single", backendlocal.TestNewLocalSingle)
defer backendinit.Set("local-single", nil)
// Ask input
defer testInputMap(t, map[string]string{
"backend-migrate-to-new": "yes",
"backend-migrate-copy-to-empty": "yes",
})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change" {
t.Fatalf("bad: %#v", state)
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Changing a configured backend that supports multi-state to a
// backend that only supports single states.
func TestMetaBackend_configuredChangeCopy_multiToSingle(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change-multi-to-single"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Register the single-state backend
backendinit.Set("local-single", backendlocal.TestNewLocalSingle)
defer backendinit.Set("local-single", nil)
// Ask input
defer testInputMap(t, map[string]string{
"backend-migrate-to-new": "yes",
"backend-migrate-multistate-to-single": "yes",
"backend-migrate-copy-to-empty": "yes",
})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change" {
t.Fatalf("bad: %#v", state)
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify existing environments exist
envPath := filepath.Join(backendlocal.DefaultEnvDir, "env2", backendlocal.DefaultStateFilename)
if _, err := os.Stat(envPath); err != nil {
t.Fatal("env should exist")
}
// Verify we are now in the default env, or we may not be able to access the new backend
if env := m.Env(); env != backend.DefaultStateName {
t.Fatal("using non-default env with single-env backend")
}
}
// Changing a configured backend that supports multi-state to a
// backend that only supports single states.
func TestMetaBackend_configuredChangeCopy_multiToSingleCurrentEnv(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change-multi-to-single"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Register the single-state backend
backendinit.Set("local-single", backendlocal.TestNewLocalSingle)
defer backendinit.Set("local-single", nil)
// Ask input
defer testInputMap(t, map[string]string{
"backend-migrate-to-new": "yes",
"backend-migrate-multistate-to-single": "yes",
"backend-migrate-copy-to-empty": "yes",
})()
// Setup the meta
m := testMetaBackend(t, nil)
// Change env
if err := m.SetEnv("env2"); err != nil {
t.Fatalf("bad: %s", err)
}
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change-env2" {
t.Fatalf("bad: %#v", state)
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify existing environments exist
envPath := filepath.Join(backendlocal.DefaultEnvDir, "env2", backendlocal.DefaultStateFilename)
if _, err := os.Stat(envPath); err != nil {
t.Fatal("env should exist")
}
}
// Changing a configured backend that supports multi-state to a
// backend that also supports multi-state.
func TestMetaBackend_configuredChangeCopy_multiToMulti(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-change-multi-to-multi"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInputMap(t, map[string]string{
"backend-migrate-to-new": "yes",
"backend-migrate-multistate-to-multistate": "yes",
})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check resulting states
states, err := b.States()
if err != nil {
t.Fatalf("bad: %s", err)
}
sort.Strings(states)
expected := []string{"default", "env2"}
if !reflect.DeepEqual(states, expected) {
t.Fatalf("bad: %#v", states)
}
{
// Check the default state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change" {
t.Fatalf("bad: %#v", state)
}
}
{
// Check the other state
s, err := b.State("env2")
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state should not be nil")
}
if state.Lineage != "backend-change-env2" {
t.Fatalf("bad: %#v", state)
}
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
{
// Verify existing environments exist
envPath := filepath.Join(backendlocal.DefaultEnvDir, "env2", backendlocal.DefaultStateFilename)
if _, err := os.Stat(envPath); err != nil {
t.Fatal("env should exist")
}
}
{
// Verify new environments exist
envPath := filepath.Join("envdir-new", "env2", backendlocal.DefaultStateFilename)
if _, err := os.Stat(envPath); err != nil {
t.Fatal("env should exist")
}
}
}
// Unsetting a saved backend
func TestMetaBackend_configuredUnset(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Verify the default paths don't exist
if !isEmptyState(DefaultStateFilename) {
data, _ := ioutil.ReadFile(DefaultStateFilename)
t.Fatal("state should not exist, but contains:\n", string(data))
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
data, _ := ioutil.ReadFile(DefaultStateFilename + DefaultBackupExtension)
t.Fatal("backup should not exist, but contains:\n", string(data))
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
s.WriteState(testState())
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify it exists where we expect it to
if isEmptyState(DefaultStateFilename) {
t.Fatal(DefaultStateFilename, "is empty")
}
// Verify no backup since it was empty to start
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
data, _ := ioutil.ReadFile(DefaultStateFilename + DefaultBackupExtension)
t.Fatal("backup state should be empty, but contains:\n", string(data))
}
}
// Unsetting a saved backend and copying the remote state
func TestMetaBackend_configuredUnsetCopy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "configuredUnset" {
t.Fatalf("bad: %#v", state)
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatalf("backup state should be empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
s.WriteState(testState())
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify it exists where we expect it to
if _, err := os.Stat(DefaultStateFilename); err != nil {
t.Fatalf("err: %s", err)
}
// Verify a backup since it wasn't empty to start
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// Saved backend state matching config, with legacy
func TestMetaBackend_configuredUnchangedLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unchanged-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "configured" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatalf("err: %s", err)
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state matching config, with legacy
func TestMetaBackend_configuredUnchangedLegacyCopy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unchanged-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Setup the meta
m := testMetaBackend(t, nil)
m.forceInitCopy = true
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "backend-unchanged-with-legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state, new config, legacy remote state
func TestMetaBackend_configuredChangedLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-changed-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no", "no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state-2.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state, new config, legacy remote state
func TestMetaBackend_configuredChangedLegacyCopyBackend(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-changed-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes", "no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "configured" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state-2.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state, new config, legacy remote state
func TestMetaBackend_configuredChangedLegacyCopyLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-changed-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no", "yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state-2.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state, new config, legacy remote state
func TestMetaBackend_configuredChangedLegacyCopyBoth(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-changed-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes", "yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths don't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured legacy
{
path := filepath.Join(m.DataDir(), DefaultStateFilename)
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state-2.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// Saved backend state, unset config, legacy remote state
func TestMetaBackend_configuredUnsetWithLegacyNoCopy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no", "no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatal("state should be nil")
}
// Verify the default paths dont exist since we had no state
if !isEmptyState(DefaultStateFilename) {
t.Fatal("state should be empty")
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup should be empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
}
// Saved backend state, unset config, legacy remote state
func TestMetaBackend_configuredUnsetWithLegacyCopyBackend(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes", "no"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "backend" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths exist
if isEmptyState(DefaultStateFilename) {
t.Fatalf("default state was empty")
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backupstate should be empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify a local backup
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// Saved backend state, unset config, legacy remote state
func TestMetaBackend_configuredUnsetWithLegacyCopyLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"no", "yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths exist
if isEmptyState(DefaultStateFilename) {
t.Fatalf("default state was empty")
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backupstate should be empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify a local backup
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// Saved backend state, unset config, legacy remote state
func TestMetaBackend_configuredUnsetWithLegacyCopyBoth(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-unset-with-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Ask input
defer testInteractiveInput(t, []string{"yes", "yes", "yes", "yes"})()
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Init: true})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "legacy" {
t.Fatalf("bad: %#v", state)
}
// Verify the default paths exist
if isEmptyState(DefaultStateFilename) {
t.Fatal("state is empty")
}
// Verify a backup exists
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
f, err := os.Open(path)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if !actual.Remote.Empty() {
t.Fatalf("bad: %#v", actual)
}
if !actual.Backend.Empty() {
t.Fatalf("bad: %#v", actual)
}
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify a local backup
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// A plan that has no backend config
func TestMetaBackend_planLocal(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-local"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-local"),
State: nil,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state != nil {
t.Fatalf("state should be nil: %#v", state)
}
// Verify the default path doens't exist
if !isEmptyState(DefaultStateFilename) {
t.Fatal("expected empty state")
}
// Verify a backup doesn't exists
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("expected empty backup")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no local backup
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatalf("backup state should be empty")
}
}
// A plan with a custom state save path
func TestMetaBackend_planLocalStatePath(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-local"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create our state
original := testState()
original.Lineage = "hello"
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-local"),
State: original,
}
// Create an alternate output path
statePath := "foo.tfstate"
// put a initial state there that needs to be backed up
err := (&state.LocalState{Path: statePath}).WriteState(original)
if err != nil {
t.Fatal(err)
}
// Setup the meta
m := testMetaBackend(t, nil)
m.stateOutPath = statePath
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("state is nil")
}
if state.Lineage != "hello" {
t.Fatalf("bad: %#v", state)
}
// Verify the default path doesn't exist
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatalf("err: %s", err)
}
// Verify a backup doesn't exists
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(statePath)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify we have a backup
if isEmptyState(statePath + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// A plan that has no backend config, matching local state
func TestMetaBackend_planLocalMatch(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-local-match"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-local-match"),
State: testStateRead(t, DefaultStateFilename),
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("should is nil")
}
if state.Lineage != "hello" {
t.Fatalf("bad: %#v", state)
}
// Verify the default path
if isEmptyState(DefaultStateFilename) {
t.Fatal("state is empty")
}
// Verify a backup exists
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err != nil {
t.Fatalf("err: %s", err)
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open(DefaultStateFilename)
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify local backup
if isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is empty")
}
}
// A plan that has no backend config, mismatched lineage
func TestMetaBackend_planLocalMismatchLineage(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-local-mismatch-lineage"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Save the original
original := testStateRead(t, DefaultStateFilename)
// Change the lineage
planState := testStateRead(t, DefaultStateFilename)
planState.Lineage = "bad"
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-local-mismatch-lineage"),
State: planState,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
_, err := m.Backend(&BackendOpts{Plan: plan})
if err == nil {
t.Fatal("should have error")
}
if !strings.Contains(err.Error(), "lineage") {
t.Fatalf("bad: %s", err)
}
// Verify our local state didn't change
actual := testStateRead(t, DefaultStateFilename)
if !actual.Equal(original) {
t.Fatalf("bad: %#v", actual)
}
// Verify a backup doesn't exists
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
}
// A plan that has no backend config, newer local
func TestMetaBackend_planLocalNewer(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-local-newer"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Save the original
original := testStateRead(t, DefaultStateFilename)
// Change the serial
planState := testStateRead(t, DefaultStateFilename)
planState.Serial = 7
planState.RootModule().Dependencies = []string{"foo"}
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-local-newer"),
State: planState,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
_, err := m.Backend(&BackendOpts{Plan: plan})
if err == nil {
t.Fatal("should have error")
}
if !strings.Contains(err.Error(), "older") {
t.Fatalf("bad: %s", err)
}
// Verify our local state didn't change
actual := testStateRead(t, DefaultStateFilename)
if !actual.Equal(original) {
t.Fatalf("bad: %#v", actual)
}
// Verify a backup doesn't exists
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
}
// A plan that has a backend in an empty dir
func TestMetaBackend_planBackendEmptyDir(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-backend-empty"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Get the state for the plan by getting the real state and
// adding the backend config to it.
original := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
"local-state.tfstate"))
backendState := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
DefaultDataDir, DefaultStateFilename))
planState := original.DeepCopy()
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-backend-empty-config"),
State: planState,
Backend: backendState.Backend,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("should is nil")
}
if state.Lineage != "hello" {
t.Fatalf("bad: %#v", state)
}
// Verify the default path doesn't exist
if !isEmptyState(DefaultStateFilename) {
t.Fatal("state is not empty")
}
// Verify a backup doesn't exist
if !isEmptyState(DefaultStateFilename + DefaultBackupExtension) {
t.Fatal("backup is not empty")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no default path
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// A plan that has a backend with matching state
func TestMetaBackend_planBackendMatch(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-backend-match"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Get the state for the plan by getting the real state and
// adding the backend config to it.
original := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
"local-state.tfstate"))
backendState := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
DefaultDataDir, DefaultStateFilename))
planState := original.DeepCopy()
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-backend-empty-config"),
State: planState,
Backend: backendState.Backend,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("should is nil")
}
if state.Lineage != "hello" {
t.Fatalf("bad: %#v", state)
}
// Verify the default path exists
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no default path
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// A plan that has a backend with mismatching lineage
func TestMetaBackend_planBackendMismatchLineage(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-backend-mismatch"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Get the state for the plan by getting the real state and
// adding the backend config to it.
original := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
"local-state.tfstate"))
backendState := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-backend-empty-config"),
DefaultDataDir, DefaultStateFilename))
planState := original.DeepCopy()
// Get the real original
original = testStateRead(t, "local-state.tfstate")
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-backend-empty-config"),
State: planState,
Backend: backendState.Backend,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
_, err := m.Backend(&BackendOpts{Plan: plan})
if err == nil {
t.Fatal("should have error")
}
if !strings.Contains(err.Error(), "lineage") {
t.Fatalf("bad: %s", err)
}
// Verify our local state didn't change
actual := testStateRead(t, "local-state.tfstate")
if !actual.Equal(original) {
t.Fatalf("bad: %#v", actual)
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Verify we have no default state
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
}
// A plan that has a legacy remote state
func TestMetaBackend_planLegacy(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("backend-plan-legacy"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// Get the state for the plan by getting the real state and
// adding the backend config to it.
original := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-legacy-data"), "local-state.tfstate"))
dataState := testStateRead(t, filepath.Join(
testFixturePath("backend-plan-legacy-data"), "state.tfstate"))
planState := original.DeepCopy()
planState.Remote = dataState.Remote
// Create the plan
plan := &terraform.Plan{
Module: testModule(t, "backend-plan-legacy-data"),
State: planState,
}
// Setup the meta
m := testMetaBackend(t, nil)
// Get the backend
b, err := m.Backend(&BackendOpts{Plan: plan})
if err != nil {
t.Fatalf("err: %s", err)
}
// Check the state
s, err := b.State(backend.DefaultStateName)
if err != nil {
t.Fatalf("bad: %s", err)
}
if err := s.RefreshState(); err != nil {
t.Fatalf("bad: %s", err)
}
state := s.State()
if state == nil {
t.Fatal("should is nil")
}
if state.Lineage != "hello" {
t.Fatalf("bad: %#v", state)
}
// Verify the default path
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify a backup doesn't exist
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
// Verify we have no configured backend/legacy
path := filepath.Join(m.DataDir(), DefaultStateFilename)
if _, err := os.Stat(path); err == nil {
t.Fatalf("should not have backend configured")
}
// Write some state
state = terraform.NewState()
state.Lineage = "changing"
s.WriteState(state)
if err := s.PersistState(); err != nil {
t.Fatalf("bad: %s", err)
}
// Verify the state is where we expect
{
f, err := os.Open("local-state.tfstate")
if err != nil {
t.Fatalf("err: %s", err)
}
actual, err := terraform.ReadState(f)
f.Close()
if err != nil {
t.Fatalf("err: %s", err)
}
if actual.Lineage != state.Lineage {
t.Fatalf("bad: %#v", actual)
}
}
// Verify no default path
if _, err := os.Stat(DefaultStateFilename); err == nil {
t.Fatal("file should not exist")
}
// Verify no local backup
if _, err := os.Stat(DefaultStateFilename + DefaultBackupExtension); err == nil {
t.Fatal("file should not exist")
}
}
// init a backend using -backend-config options multiple times
func TestMetaBackend_configureWithExtra(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("init-backend-empty"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
extras := map[string]interface{}{"path": "hello"}
m := testMetaBackend(t, nil)
opts := &BackendOpts{
ConfigExtra: extras,
Init: true,
}
backendCfg, err := m.backendConfig(opts)
if err != nil {
t.Fatal(err)
}
// init the backend
_, err = m.Backend(&BackendOpts{
ConfigExtra: extras,
Init: true,
})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s := testStateRead(t, filepath.Join(DefaultDataDir, backendlocal.DefaultStateFilename))
if s.Backend.Hash != backendCfg.Hash {
t.Fatal("mismatched state and config backend hashes")
}
if s.Backend.Rehash() == s.Backend.Hash {
t.Fatal("saved hash should not match actual hash")
}
if s.Backend.Rehash() != backendCfg.Rehash() {
t.Fatal("mismatched state and config re-hashes")
}
// init the backend again with the same options
m = testMetaBackend(t, nil)
_, err = m.Backend(&BackendOpts{
ConfigExtra: extras,
Init: true,
})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s = testStateRead(t, filepath.Join(DefaultDataDir, backendlocal.DefaultStateFilename))
if s.Backend.Hash != backendCfg.Hash {
t.Fatal("mismatched state and config backend hashes")
}
}
// move options from config to -backend-config
func TestMetaBackend_configToExtra(t *testing.T) {
// Create a temporary working directory that is empty
td := tempDir(t)
copy.CopyDir(testFixturePath("init-backend"), td)
defer os.RemoveAll(td)
defer testChdir(t, td)()
// init the backend
m := testMetaBackend(t, nil)
_, err := m.Backend(&BackendOpts{
Init: true,
})
if err != nil {
t.Fatalf("bad: %s", err)
}
// Check the state
s := testStateRead(t, filepath.Join(DefaultDataDir, backendlocal.DefaultStateFilename))
backendHash := s.Backend.Hash
// init again but remove the path option from the config
cfg := "terraform {\n backend \"local\" {}\n}\n"
if err := ioutil.WriteFile("main.tf", []byte(cfg), 0644); err != nil {
t.Fatal(err)
}
// init the backend again with the options
extras := map[string]interface{}{"path": "hello"}
m = testMetaBackend(t, nil)
m.forceInitCopy = true
_, err = m.Backend(&BackendOpts{
ConfigExtra: extras,
Init: true,
})
if err != nil {
t.Fatalf("bad: %s", err)
}
s = testStateRead(t, filepath.Join(DefaultDataDir, backendlocal.DefaultStateFilename))
if s.Backend.Hash == backendHash {
t.Fatal("state.Backend.Hash was not updated")
}
}
func testMetaBackend(t *testing.T, args []string) *Meta {
var m Meta
m.Ui = new(cli.MockUi)
m.process(args, true)
f := m.flagSet("test")
if err := f.Parse(args); err != nil {
t.Fatalf("bad: %s", err)
}
return &m
}