package s3 import ( "fmt" "os" "reflect" "testing" "time" "github.com/aws/aws-sdk-go/aws" "github.com/aws/aws-sdk-go/service/dynamodb" "github.com/aws/aws-sdk-go/service/s3" "github.com/hashicorp/terraform/backend" "github.com/hashicorp/terraform/config/hcl2shim" "github.com/hashicorp/terraform/state/remote" "github.com/hashicorp/terraform/terraform" ) // verify that we are doing ACC tests or the S3 tests specifically func testACC(t *testing.T) { skip := os.Getenv("TF_ACC") == "" && os.Getenv("TF_S3_TEST") == "" if skip { t.Log("s3 backend tests require setting TF_ACC or TF_S3_TEST") t.Skip() } if os.Getenv("AWS_DEFAULT_REGION") == "" { os.Setenv("AWS_DEFAULT_REGION", "us-west-2") } } func TestBackend_impl(t *testing.T) { var _ backend.Backend = new(Backend) } func TestBackendConfig(t *testing.T) { testACC(t) config := map[string]interface{}{ "region": "us-west-1", "bucket": "tf-test", "key": "state", "encrypt": true, "dynamodb_table": "dynamoTable", } b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(config)).(*Backend) if *b.s3Client.Config.Region != "us-west-1" { t.Fatalf("Incorrect region was populated") } if b.bucketName != "tf-test" { t.Fatalf("Incorrect bucketName was populated") } if b.keyName != "state" { t.Fatalf("Incorrect keyName was populated") } credentials, err := b.s3Client.Config.Credentials.Get() if err != nil { t.Fatalf("Error when requesting credentials") } if credentials.AccessKeyID == "" { t.Fatalf("No Access Key Id was populated") } if credentials.SecretAccessKey == "" { t.Fatalf("No Secret Access Key was populated") } } func TestBackendConfig_invalidKey(t *testing.T) { testACC(t) cfg := hcl2shim.HCL2ValueFromConfigValue(map[string]interface{}{ "region": "us-west-1", "bucket": "tf-test", "key": "/leading-slash", "encrypt": true, "dynamodb_table": "dynamoTable", }) diags := New().ValidateConfig(cfg) if !diags.HasErrors() { t.Fatal("expected config validation error") } } func TestBackend(t *testing.T) { testACC(t) bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix()) keyName := "testState" b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucketName, "key": keyName, "encrypt": true, })).(*Backend) createS3Bucket(t, b.s3Client, bucketName) defer deleteS3Bucket(t, b.s3Client, bucketName) backend.TestBackendStates(t, b) } func TestBackendLocked(t *testing.T) { testACC(t) bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix()) keyName := "test/state" b1 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucketName, "key": keyName, "encrypt": true, "dynamodb_table": bucketName, })).(*Backend) b2 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucketName, "key": keyName, "encrypt": true, "dynamodb_table": bucketName, })).(*Backend) createS3Bucket(t, b1.s3Client, bucketName) defer deleteS3Bucket(t, b1.s3Client, bucketName) createDynamoDBTable(t, b1.dynClient, bucketName) defer deleteDynamoDBTable(t, b1.dynClient, bucketName) backend.TestBackendStateLocks(t, b1, b2) backend.TestBackendStateForceUnlock(t, b1, b2) } // add some extra junk in S3 to try and confuse the env listing. func TestBackendExtraPaths(t *testing.T) { testACC(t) bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix()) keyName := "test/state/tfstate" b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucketName, "key": keyName, "encrypt": true, })).(*Backend) createS3Bucket(t, b.s3Client, bucketName) defer deleteS3Bucket(t, b.s3Client, bucketName) // put multiple states in old env paths. s1 := terraform.NewState() s2 := terraform.NewState() // RemoteClient to Put things in various paths client := &RemoteClient{ s3Client: b.s3Client, dynClient: b.dynClient, bucketName: b.bucketName, path: b.path("s1"), serverSideEncryption: b.serverSideEncryption, acl: b.acl, kmsKeyID: b.kmsKeyID, ddbTable: b.ddbTable, } stateMgr := &remote.State{Client: client} stateMgr.WriteState(s1) if err := stateMgr.PersistState(); err != nil { t.Fatal(err) } client.path = b.path("s2") stateMgr.WriteState(s2) if err := stateMgr.PersistState(); err != nil { t.Fatal(err) } if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil { t.Fatal(err) } // put a state in an env directory name client.path = b.workspaceKeyPrefix + "/error" stateMgr.WriteState(terraform.NewState()) if err := stateMgr.PersistState(); err != nil { t.Fatal(err) } if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil { t.Fatal(err) } // add state with the wrong key for an existing env client.path = b.workspaceKeyPrefix + "/s2/notTestState" stateMgr.WriteState(terraform.NewState()) if err := stateMgr.PersistState(); err != nil { t.Fatal(err) } if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil { t.Fatal(err) } // remove the state with extra subkey if err := b.DeleteState("s2"); err != nil { t.Fatal(err) } if err := checkStateList(b, []string{"default", "s1"}); err != nil { t.Fatal(err) } // fetch that state again, which should produce a new lineage s2Mgr, err := b.State("s2") if err != nil { t.Fatal(err) } if err := s2Mgr.RefreshState(); err != nil { t.Fatal(err) } if s2Mgr.State().Lineage == s2.Lineage { t.Fatal("state s2 was not deleted") } s2 = s2Mgr.State() // add a state with a key that matches an existing environment dir name client.path = b.workspaceKeyPrefix + "/s2/" stateMgr.WriteState(terraform.NewState()) if err := stateMgr.PersistState(); err != nil { t.Fatal(err) } // make sure s2 is OK s2Mgr, err = b.State("s2") if err != nil { t.Fatal(err) } if err := s2Mgr.RefreshState(); err != nil { t.Fatal(err) } if s2Mgr.State().Lineage != s2.Lineage { t.Fatal("we got the wrong state for s2") } if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil { t.Fatal(err) } } // ensure we can separate the workspace prefix when it also matches the prefix // of the workspace name itself. func TestBackendPrefixInWorkspace(t *testing.T) { testACC(t) bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix()) b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucketName, "key": "test-env.tfstate", "workspace_key_prefix": "env", })).(*Backend) createS3Bucket(t, b.s3Client, bucketName) defer deleteS3Bucket(t, b.s3Client, bucketName) // get a state that contains the prefix as a substring sMgr, err := b.State("env-1") if err != nil { t.Fatal(err) } if err := sMgr.RefreshState(); err != nil { t.Fatal(err) } if err := checkStateList(b, []string{"default", "env-1"}); err != nil { t.Fatal(err) } } func TestKeyEnv(t *testing.T) { testACC(t) keyName := "some/paths/tfstate" bucket0Name := fmt.Sprintf("terraform-remote-s3-test-%x-0", time.Now().Unix()) b0 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucket0Name, "key": keyName, "encrypt": true, "workspace_key_prefix": "", })).(*Backend) createS3Bucket(t, b0.s3Client, bucket0Name) defer deleteS3Bucket(t, b0.s3Client, bucket0Name) bucket1Name := fmt.Sprintf("terraform-remote-s3-test-%x-1", time.Now().Unix()) b1 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucket1Name, "key": keyName, "encrypt": true, "workspace_key_prefix": "project/env:", })).(*Backend) createS3Bucket(t, b1.s3Client, bucket1Name) defer deleteS3Bucket(t, b1.s3Client, bucket1Name) bucket2Name := fmt.Sprintf("terraform-remote-s3-test-%x-2", time.Now().Unix()) b2 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{ "bucket": bucket2Name, "key": keyName, "encrypt": true, })).(*Backend) createS3Bucket(t, b2.s3Client, bucket2Name) defer deleteS3Bucket(t, b2.s3Client, bucket2Name) if err := testGetWorkspaceForKey(b0, "some/paths/tfstate", ""); err != nil { t.Fatal(err) } if err := testGetWorkspaceForKey(b0, "ws1/some/paths/tfstate", "ws1"); err != nil { t.Fatal(err) } if err := testGetWorkspaceForKey(b1, "project/env:/ws1/some/paths/tfstate", "ws1"); err != nil { t.Fatal(err) } if err := testGetWorkspaceForKey(b1, "project/env:/ws2/some/paths/tfstate", "ws2"); err != nil { t.Fatal(err) } if err := testGetWorkspaceForKey(b2, "env:/ws3/some/paths/tfstate", "ws3"); err != nil { t.Fatal(err) } backend.TestBackendStates(t, b0) backend.TestBackendStates(t, b1) backend.TestBackendStates(t, b2) } func testGetWorkspaceForKey(b *Backend, key string, expected string) error { if actual := b.keyEnv(key); actual != expected { return fmt.Errorf("incorrect workspace for key[%q]. Expected[%q]: Actual[%q]", key, expected, actual) } return nil } func checkStateList(b backend.Backend, expected []string) error { states, err := b.States() if err != nil { return err } if !reflect.DeepEqual(states, expected) { return fmt.Errorf("incorrect states listed: %q", states) } return nil } func createS3Bucket(t *testing.T, s3Client *s3.S3, bucketName string) { createBucketReq := &s3.CreateBucketInput{ Bucket: &bucketName, } // Be clear about what we're doing in case the user needs to clean // this up later. t.Logf("creating S3 bucket %s in %s", bucketName, *s3Client.Config.Region) _, err := s3Client.CreateBucket(createBucketReq) if err != nil { t.Fatal("failed to create test S3 bucket:", err) } } func deleteS3Bucket(t *testing.T, s3Client *s3.S3, bucketName string) { warning := "WARNING: Failed to delete the test S3 bucket. It may have been left in your AWS account and may incur storage charges. (error was %s)" // first we have to get rid of the env objects, or we can't delete the bucket resp, err := s3Client.ListObjects(&s3.ListObjectsInput{Bucket: &bucketName}) if err != nil { t.Logf(warning, err) return } for _, obj := range resp.Contents { if _, err := s3Client.DeleteObject(&s3.DeleteObjectInput{Bucket: &bucketName, Key: obj.Key}); err != nil { // this will need cleanup no matter what, so just warn and exit t.Logf(warning, err) return } } if _, err := s3Client.DeleteBucket(&s3.DeleteBucketInput{Bucket: &bucketName}); err != nil { t.Logf(warning, err) } } // create the dynamoDB table, and wait until we can query it. func createDynamoDBTable(t *testing.T, dynClient *dynamodb.DynamoDB, tableName string) { createInput := &dynamodb.CreateTableInput{ AttributeDefinitions: []*dynamodb.AttributeDefinition{ { AttributeName: aws.String("LockID"), AttributeType: aws.String("S"), }, }, KeySchema: []*dynamodb.KeySchemaElement{ { AttributeName: aws.String("LockID"), KeyType: aws.String("HASH"), }, }, ProvisionedThroughput: &dynamodb.ProvisionedThroughput{ ReadCapacityUnits: aws.Int64(5), WriteCapacityUnits: aws.Int64(5), }, TableName: aws.String(tableName), } _, err := dynClient.CreateTable(createInput) if err != nil { t.Fatal(err) } // now wait until it's ACTIVE start := time.Now() time.Sleep(time.Second) describeInput := &dynamodb.DescribeTableInput{ TableName: aws.String(tableName), } for { resp, err := dynClient.DescribeTable(describeInput) if err != nil { t.Fatal(err) } if *resp.Table.TableStatus == "ACTIVE" { return } if time.Since(start) > time.Minute { t.Fatalf("timed out creating DynamoDB table %s", tableName) } time.Sleep(3 * time.Second) } } func deleteDynamoDBTable(t *testing.T, dynClient *dynamodb.DynamoDB, tableName string) { params := &dynamodb.DeleteTableInput{ TableName: aws.String(tableName), } _, err := dynClient.DeleteTable(params) if err != nil { t.Logf("WARNING: Failed to delete the test DynamoDB table %q. It has been left in your AWS account and may incur charges. (error was %s)", tableName, err) } }