terraform/builtin/providers/docker/resource_docker_container_t...

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package docker
import (
"archive/tar"
"bytes"
"fmt"
"testing"
dc "github.com/fsouza/go-dockerclient"
"github.com/hashicorp/terraform/helper/resource"
"github.com/hashicorp/terraform/terraform"
)
func TestAccDockerContainer_basic(t *testing.T) {
var c dc.Container
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccDockerContainerConfig,
Check: resource.ComposeTestCheckFunc(
testAccContainerRunning("docker_container.foo", &c),
),
},
},
})
}
func TestAccDockerContainer_volume(t *testing.T) {
var c dc.Container
testCheck := func(*terraform.State) error {
if len(c.Mounts) != 1 {
return fmt.Errorf("Incorrect number of mounts: expected 1, got %d", len(c.Mounts))
}
for _, v := range c.Mounts {
if v.Name != "testAccDockerContainerVolume_volume" {
continue
}
if v.Destination != "/tmp/volume" {
return fmt.Errorf("Bad destination on mount: expected /tmp/volume, got %q", v.Destination)
}
if v.Mode != "rw" {
return fmt.Errorf("Bad mode on mount: expected rw, got %q", v.Mode)
}
return nil
}
return fmt.Errorf("Mount for testAccDockerContainerVolume_volume not found")
}
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccDockerContainerVolumeConfig,
Check: resource.ComposeTestCheckFunc(
testAccContainerRunning("docker_container.foo", &c),
testCheck,
),
},
},
})
}
func TestAccDockerContainer_customized(t *testing.T) {
var c dc.Container
testCheck := func(*terraform.State) error {
if len(c.Config.Entrypoint) < 3 ||
(c.Config.Entrypoint[0] != "/bin/bash" &&
c.Config.Entrypoint[1] != "-c" &&
c.Config.Entrypoint[2] != "ping localhost") {
return fmt.Errorf("Container wrong entrypoint: %s", c.Config.Entrypoint)
}
if c.Config.User != "root:root" {
return fmt.Errorf("Container wrong user: %s", c.Config.User)
}
if c.HostConfig.RestartPolicy.Name == "on-failure" {
if c.HostConfig.RestartPolicy.MaximumRetryCount != 5 {
return fmt.Errorf("Container has wrong restart policy max retry count: %d", c.HostConfig.RestartPolicy.MaximumRetryCount)
}
} else {
return fmt.Errorf("Container has wrong restart policy: %s", c.HostConfig.RestartPolicy.Name)
}
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if c.HostConfig.Memory != (512 * 1024 * 1024) {
return fmt.Errorf("Container has wrong memory setting: %d", c.HostConfig.Memory)
}
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if c.HostConfig.MemorySwap != (2048 * 1024 * 1024) {
return fmt.Errorf("Container has wrong memory swap setting: %d\n\r\tPlease check that you machine supports memory swap (you can do that by running 'docker info' command).", c.HostConfig.MemorySwap)
}
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if c.HostConfig.CPUShares != 32 {
return fmt.Errorf("Container has wrong cpu shares setting: %d", c.HostConfig.CPUShares)
}
if len(c.HostConfig.DNS) != 1 {
return fmt.Errorf("Container does not have the correct number of dns entries: %d", len(c.HostConfig.DNS))
}
if c.HostConfig.DNS[0] != "8.8.8.8" {
return fmt.Errorf("Container has wrong dns setting: %v", c.HostConfig.DNS[0])
}
if len(c.HostConfig.DNSOptions) != 1 {
return fmt.Errorf("Container does not have the correct number of dns option entries: %d", len(c.HostConfig.DNS))
}
if c.HostConfig.DNSOptions[0] != "rotate" {
return fmt.Errorf("Container has wrong dns option setting: %v", c.HostConfig.DNS[0])
}
if len(c.HostConfig.DNSSearch) != 1 {
return fmt.Errorf("Container does not have the correct number of dns search entries: %d", len(c.HostConfig.DNS))
}
if c.HostConfig.DNSSearch[0] != "example.com" {
return fmt.Errorf("Container has wrong dns search setting: %v", c.HostConfig.DNS[0])
}
if len(c.HostConfig.CapAdd) != 1 {
return fmt.Errorf("Container does not have the correct number of Capabilities in ADD: %d", len(c.HostConfig.CapAdd))
}
if c.HostConfig.CapAdd[0] != "ALL" {
return fmt.Errorf("Container has wrong CapAdd setting: %v", c.HostConfig.CapAdd[0])
}
if len(c.HostConfig.CapDrop) != 1 {
return fmt.Errorf("Container does not have the correct number of Capabilities in Drop: %d", len(c.HostConfig.CapDrop))
}
if c.HostConfig.CapDrop[0] != "SYS_ADMIN" {
return fmt.Errorf("Container has wrong CapDrop setting: %v", c.HostConfig.CapDrop[0])
}
if c.HostConfig.CPUShares != 32 {
return fmt.Errorf("Container has wrong cpu shares setting: %d", c.HostConfig.CPUShares)
}
if c.HostConfig.CPUShares != 32 {
return fmt.Errorf("Container has wrong cpu shares setting: %d", c.HostConfig.CPUShares)
}
if c.Config.Labels["env"] != "prod" || c.Config.Labels["role"] != "test" {
return fmt.Errorf("Container does not have the correct labels")
}
if c.HostConfig.LogConfig.Type != "json-file" {
return fmt.Errorf("Container does not have the correct log config: %s", c.HostConfig.LogConfig.Type)
}
if c.HostConfig.LogConfig.Config["max-size"] != "10m" {
return fmt.Errorf("Container does not have the correct max-size log option: %v", c.HostConfig.LogConfig.Config["max-size"])
}
if c.HostConfig.LogConfig.Config["max-file"] != "20" {
return fmt.Errorf("Container does not have the correct max-file log option: %v", c.HostConfig.LogConfig.Config["max-file"])
}
if len(c.HostConfig.ExtraHosts) != 2 {
return fmt.Errorf("Container does not have correct number of extra host entries, got %d", len(c.HostConfig.ExtraHosts))
}
if c.HostConfig.ExtraHosts[0] != "testhost2:10.0.2.0" {
return fmt.Errorf("Container has incorrect extra host string: %q", c.HostConfig.ExtraHosts[0])
}
if c.HostConfig.ExtraHosts[1] != "testhost:10.0.1.0" {
return fmt.Errorf("Container has incorrect extra host string: %q", c.HostConfig.ExtraHosts[1])
}
return nil
}
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccDockerContainerCustomizedConfig,
Check: resource.ComposeTestCheckFunc(
testAccContainerRunning("docker_container.foo", &c),
testCheck,
),
},
},
})
}
func TestAccDockerContainer_upload(t *testing.T) {
var c dc.Container
testCheck := func(*terraform.State) error {
client := testAccProvider.Meta().(*dc.Client)
buf := new(bytes.Buffer)
opts := dc.DownloadFromContainerOptions{
OutputStream: buf,
Path: "/terraform/test.txt",
}
if err := client.DownloadFromContainer(c.ID, opts); err != nil {
return fmt.Errorf("Unable to download a file from container: %s", err)
}
r := bytes.NewReader(buf.Bytes())
tr := tar.NewReader(r)
if _, err := tr.Next(); err != nil {
return fmt.Errorf("Unable to read content of tar archive: %s", err)
}
fbuf := new(bytes.Buffer)
fbuf.ReadFrom(tr)
content := fbuf.String()
if content != "foo" {
return fmt.Errorf("file content is invalid")
}
return nil
}
resource.Test(t, resource.TestCase{
PreCheck: func() { testAccPreCheck(t) },
Providers: testAccProviders,
Steps: []resource.TestStep{
resource.TestStep{
Config: testAccDockerContainerUploadConfig,
Check: resource.ComposeTestCheckFunc(
testAccContainerRunning("docker_container.foo", &c),
testCheck,
),
},
},
})
}
func testAccContainerRunning(n string, container *dc.Container) resource.TestCheckFunc {
return func(s *terraform.State) error {
rs, ok := s.RootModule().Resources[n]
if !ok {
return fmt.Errorf("Not found: %s", n)
}
if rs.Primary.ID == "" {
return fmt.Errorf("No ID is set")
}
client := testAccProvider.Meta().(*dc.Client)
containers, err := client.ListContainers(dc.ListContainersOptions{})
if err != nil {
return err
}
for _, c := range containers {
if c.ID == rs.Primary.ID {
inspected, err := client.InspectContainer(c.ID)
if err != nil {
return fmt.Errorf("Container could not be inspected: %s", err)
}
*container = *inspected
return nil
}
}
return fmt.Errorf("Container not found: %s", rs.Primary.ID)
}
}
const testAccDockerContainerConfig = `
resource "docker_image" "foo" {
name = "nginx:latest"
}
resource "docker_container" "foo" {
name = "tf-test"
image = "${docker_image.foo.latest}"
}
`
const testAccDockerContainerVolumeConfig = `
resource "docker_image" "foo" {
name = "nginx:latest"
}
resource "docker_volume" "foo" {
name = "testAccDockerContainerVolume_volume"
}
resource "docker_container" "foo" {
name = "tf-test"
image = "${docker_image.foo.latest}"
volumes {
volume_name = "${docker_volume.foo.name}"
container_path = "/tmp/volume"
read_only = false
}
}
`
const testAccDockerContainerCustomizedConfig = `
resource "docker_image" "foo" {
name = "nginx:latest"
}
resource "docker_container" "foo" {
name = "tf-test"
image = "${docker_image.foo.latest}"
entrypoint = ["/bin/bash", "-c", "ping localhost"]
user = "root:root"
restart = "on-failure"
destroy_grace_seconds = 10
max_retry_count = 5
memory = 512
memory_swap = 2048
cpu_shares = 32
capabilities {
add= ["ALL"]
drop = ["SYS_ADMIN"]
}
dns = ["8.8.8.8"]
dns_opts = ["rotate"]
dns_search = ["example.com"]
labels {
env = "prod"
role = "test"
}
log_driver = "json-file"
log_opts = {
max-size = "10m"
max-file = 20
}
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network_mode = "bridge"
host {
host = "testhost"
ip = "10.0.1.0"
}
host {
host = "testhost2"
ip = "10.0.2.0"
}
}
`
const testAccDockerContainerUploadConfig = `
resource "docker_image" "foo" {
name = "nginx:latest"
}
resource "docker_container" "foo" {
name = "tf-test"
image = "${docker_image.foo.latest}"
upload {
content = "foo"
file = "/terraform/test.txt"
}
}
`