463 lines
12 KiB
Go
463 lines
12 KiB
Go
package s3
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import (
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"fmt"
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"os"
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"reflect"
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"testing"
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"time"
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"github.com/aws/aws-sdk-go/aws"
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"github.com/aws/aws-sdk-go/service/dynamodb"
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"github.com/aws/aws-sdk-go/service/s3"
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"github.com/hashicorp/terraform/backend"
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"github.com/hashicorp/terraform/config/hcl2shim"
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"github.com/hashicorp/terraform/state/remote"
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"github.com/hashicorp/terraform/states"
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)
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// verify that we are doing ACC tests or the S3 tests specifically
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func testACC(t *testing.T) {
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skip := os.Getenv("TF_ACC") == "" && os.Getenv("TF_S3_TEST") == ""
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if skip {
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t.Log("s3 backend tests require setting TF_ACC or TF_S3_TEST")
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t.Skip()
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}
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if os.Getenv("AWS_DEFAULT_REGION") == "" {
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os.Setenv("AWS_DEFAULT_REGION", "us-west-2")
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}
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}
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func TestBackend_impl(t *testing.T) {
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var _ backend.Backend = new(Backend)
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}
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func TestBackendConfig(t *testing.T) {
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testACC(t)
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config := map[string]interface{}{
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"region": "us-west-1",
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"bucket": "tf-test",
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"key": "state",
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"encrypt": true,
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"dynamodb_table": "dynamoTable",
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}
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b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(config)).(*Backend)
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if *b.s3Client.Config.Region != "us-west-1" {
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t.Fatalf("Incorrect region was populated")
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}
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if b.bucketName != "tf-test" {
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t.Fatalf("Incorrect bucketName was populated")
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}
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if b.keyName != "state" {
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t.Fatalf("Incorrect keyName was populated")
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}
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credentials, err := b.s3Client.Config.Credentials.Get()
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if err != nil {
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t.Fatalf("Error when requesting credentials")
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}
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if credentials.AccessKeyID == "" {
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t.Fatalf("No Access Key Id was populated")
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}
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if credentials.SecretAccessKey == "" {
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t.Fatalf("No Secret Access Key was populated")
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}
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}
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func TestBackendConfig_invalidKey(t *testing.T) {
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testACC(t)
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cfg := hcl2shim.HCL2ValueFromConfigValue(map[string]interface{}{
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"region": "us-west-1",
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"bucket": "tf-test",
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"key": "/leading-slash",
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"encrypt": true,
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"dynamodb_table": "dynamoTable",
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})
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_, diags := New().PrepareConfig(cfg)
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if !diags.HasErrors() {
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t.Fatal("expected config validation error")
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}
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}
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func TestBackend(t *testing.T) {
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testACC(t)
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bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix())
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keyName := "testState"
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b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucketName,
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"key": keyName,
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"encrypt": true,
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})).(*Backend)
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createS3Bucket(t, b.s3Client, bucketName)
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defer deleteS3Bucket(t, b.s3Client, bucketName)
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backend.TestBackendStates(t, b)
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}
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func TestBackendLocked(t *testing.T) {
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testACC(t)
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bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix())
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keyName := "test/state"
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b1 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucketName,
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"key": keyName,
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"encrypt": true,
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"dynamodb_table": bucketName,
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})).(*Backend)
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b2 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucketName,
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"key": keyName,
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"encrypt": true,
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"dynamodb_table": bucketName,
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})).(*Backend)
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createS3Bucket(t, b1.s3Client, bucketName)
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defer deleteS3Bucket(t, b1.s3Client, bucketName)
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createDynamoDBTable(t, b1.dynClient, bucketName)
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defer deleteDynamoDBTable(t, b1.dynClient, bucketName)
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backend.TestBackendStateLocks(t, b1, b2)
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backend.TestBackendStateForceUnlock(t, b1, b2)
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}
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// add some extra junk in S3 to try and confuse the env listing.
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func TestBackendExtraPaths(t *testing.T) {
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testACC(t)
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bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix())
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keyName := "test/state/tfstate"
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b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucketName,
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"key": keyName,
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"encrypt": true,
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})).(*Backend)
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createS3Bucket(t, b.s3Client, bucketName)
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defer deleteS3Bucket(t, b.s3Client, bucketName)
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// put multiple states in old env paths.
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s1 := states.NewState()
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s2 := states.NewState()
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// RemoteClient to Put things in various paths
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client := &RemoteClient{
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s3Client: b.s3Client,
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dynClient: b.dynClient,
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bucketName: b.bucketName,
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path: b.path("s1"),
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serverSideEncryption: b.serverSideEncryption,
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acl: b.acl,
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kmsKeyID: b.kmsKeyID,
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ddbTable: b.ddbTable,
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}
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stateMgr := &remote.State{Client: client}
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stateMgr.WriteState(s1)
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if err := stateMgr.PersistState(); err != nil {
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t.Fatal(err)
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}
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client.path = b.path("s2")
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stateMgr.WriteState(s2)
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if err := stateMgr.PersistState(); err != nil {
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t.Fatal(err)
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}
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s2Lineage := stateMgr.StateSnapshotMeta().Lineage
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if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil {
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t.Fatal(err)
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}
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// put a state in an env directory name
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client.path = b.workspaceKeyPrefix + "/error"
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stateMgr.WriteState(states.NewState())
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if err := stateMgr.PersistState(); err != nil {
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t.Fatal(err)
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}
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if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil {
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t.Fatal(err)
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}
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// add state with the wrong key for an existing env
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client.path = b.workspaceKeyPrefix + "/s2/notTestState"
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stateMgr.WriteState(states.NewState())
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if err := stateMgr.PersistState(); err != nil {
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t.Fatal(err)
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}
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if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil {
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t.Fatal(err)
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}
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// remove the state with extra subkey
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if err := client.Delete(); err != nil {
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t.Fatal(err)
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}
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// delete the real workspace
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if err := b.DeleteWorkspace("s2"); err != nil {
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t.Fatal(err)
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}
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if err := checkStateList(b, []string{"default", "s1"}); err != nil {
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t.Fatal(err)
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}
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// fetch that state again, which should produce a new lineage
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s2Mgr, err := b.StateMgr("s2")
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if err != nil {
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t.Fatal(err)
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}
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if err := s2Mgr.RefreshState(); err != nil {
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t.Fatal(err)
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}
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if s2Mgr.(*remote.State).StateSnapshotMeta().Lineage == s2Lineage {
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t.Fatal("state s2 was not deleted")
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}
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s2 = s2Mgr.State()
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s2Lineage = stateMgr.StateSnapshotMeta().Lineage
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// add a state with a key that matches an existing environment dir name
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client.path = b.workspaceKeyPrefix + "/s2/"
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stateMgr.WriteState(states.NewState())
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if err := stateMgr.PersistState(); err != nil {
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t.Fatal(err)
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}
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// make sure s2 is OK
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s2Mgr, err = b.StateMgr("s2")
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if err != nil {
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t.Fatal(err)
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}
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if err := s2Mgr.RefreshState(); err != nil {
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t.Fatal(err)
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}
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if stateMgr.StateSnapshotMeta().Lineage != s2Lineage {
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t.Fatal("we got the wrong state for s2")
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}
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if err := checkStateList(b, []string{"default", "s1", "s2"}); err != nil {
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t.Fatal(err)
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}
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}
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// ensure we can separate the workspace prefix when it also matches the prefix
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// of the workspace name itself.
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func TestBackendPrefixInWorkspace(t *testing.T) {
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testACC(t)
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bucketName := fmt.Sprintf("terraform-remote-s3-test-%x", time.Now().Unix())
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b := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucketName,
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"key": "test-env.tfstate",
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"workspace_key_prefix": "env",
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})).(*Backend)
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createS3Bucket(t, b.s3Client, bucketName)
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defer deleteS3Bucket(t, b.s3Client, bucketName)
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// get a state that contains the prefix as a substring
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sMgr, err := b.StateMgr("env-1")
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if err != nil {
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t.Fatal(err)
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}
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if err := sMgr.RefreshState(); err != nil {
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t.Fatal(err)
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}
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if err := checkStateList(b, []string{"default", "env-1"}); err != nil {
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t.Fatal(err)
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}
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}
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func TestKeyEnv(t *testing.T) {
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testACC(t)
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keyName := "some/paths/tfstate"
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bucket0Name := fmt.Sprintf("terraform-remote-s3-test-%x-0", time.Now().Unix())
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b0 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucket0Name,
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"key": keyName,
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"encrypt": true,
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"workspace_key_prefix": "",
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})).(*Backend)
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createS3Bucket(t, b0.s3Client, bucket0Name)
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defer deleteS3Bucket(t, b0.s3Client, bucket0Name)
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bucket1Name := fmt.Sprintf("terraform-remote-s3-test-%x-1", time.Now().Unix())
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b1 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucket1Name,
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"key": keyName,
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"encrypt": true,
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"workspace_key_prefix": "project/env:",
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})).(*Backend)
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createS3Bucket(t, b1.s3Client, bucket1Name)
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defer deleteS3Bucket(t, b1.s3Client, bucket1Name)
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bucket2Name := fmt.Sprintf("terraform-remote-s3-test-%x-2", time.Now().Unix())
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b2 := backend.TestBackendConfig(t, New(), backend.TestWrapConfig(map[string]interface{}{
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"bucket": bucket2Name,
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"key": keyName,
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"encrypt": true,
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})).(*Backend)
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createS3Bucket(t, b2.s3Client, bucket2Name)
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defer deleteS3Bucket(t, b2.s3Client, bucket2Name)
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if err := testGetWorkspaceForKey(b0, "some/paths/tfstate", ""); err != nil {
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t.Fatal(err)
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}
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if err := testGetWorkspaceForKey(b0, "ws1/some/paths/tfstate", "ws1"); err != nil {
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t.Fatal(err)
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}
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if err := testGetWorkspaceForKey(b1, "project/env:/ws1/some/paths/tfstate", "ws1"); err != nil {
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t.Fatal(err)
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}
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if err := testGetWorkspaceForKey(b1, "project/env:/ws2/some/paths/tfstate", "ws2"); err != nil {
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t.Fatal(err)
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}
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if err := testGetWorkspaceForKey(b2, "env:/ws3/some/paths/tfstate", "ws3"); err != nil {
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t.Fatal(err)
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}
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backend.TestBackendStates(t, b0)
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backend.TestBackendStates(t, b1)
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backend.TestBackendStates(t, b2)
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}
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func testGetWorkspaceForKey(b *Backend, key string, expected string) error {
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if actual := b.keyEnv(key); actual != expected {
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return fmt.Errorf("incorrect workspace for key[%q]. Expected[%q]: Actual[%q]", key, expected, actual)
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}
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return nil
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}
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func checkStateList(b backend.Backend, expected []string) error {
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states, err := b.Workspaces()
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if err != nil {
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return err
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}
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if !reflect.DeepEqual(states, expected) {
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return fmt.Errorf("incorrect states listed: %q", states)
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}
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return nil
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}
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func createS3Bucket(t *testing.T, s3Client *s3.S3, bucketName string) {
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createBucketReq := &s3.CreateBucketInput{
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Bucket: &bucketName,
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}
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// Be clear about what we're doing in case the user needs to clean
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// this up later.
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t.Logf("creating S3 bucket %s in %s", bucketName, *s3Client.Config.Region)
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_, err := s3Client.CreateBucket(createBucketReq)
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if err != nil {
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t.Fatal("failed to create test S3 bucket:", err)
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}
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}
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func deleteS3Bucket(t *testing.T, s3Client *s3.S3, bucketName string) {
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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)"
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// first we have to get rid of the env objects, or we can't delete the bucket
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resp, err := s3Client.ListObjects(&s3.ListObjectsInput{Bucket: &bucketName})
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if err != nil {
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t.Logf(warning, err)
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return
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}
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for _, obj := range resp.Contents {
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if _, err := s3Client.DeleteObject(&s3.DeleteObjectInput{Bucket: &bucketName, Key: obj.Key}); err != nil {
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// this will need cleanup no matter what, so just warn and exit
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t.Logf(warning, err)
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return
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}
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}
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if _, err := s3Client.DeleteBucket(&s3.DeleteBucketInput{Bucket: &bucketName}); err != nil {
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t.Logf(warning, err)
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}
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}
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// create the dynamoDB table, and wait until we can query it.
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func createDynamoDBTable(t *testing.T, dynClient *dynamodb.DynamoDB, tableName string) {
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createInput := &dynamodb.CreateTableInput{
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AttributeDefinitions: []*dynamodb.AttributeDefinition{
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{
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AttributeName: aws.String("LockID"),
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AttributeType: aws.String("S"),
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},
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},
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KeySchema: []*dynamodb.KeySchemaElement{
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{
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AttributeName: aws.String("LockID"),
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KeyType: aws.String("HASH"),
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},
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},
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ProvisionedThroughput: &dynamodb.ProvisionedThroughput{
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ReadCapacityUnits: aws.Int64(5),
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WriteCapacityUnits: aws.Int64(5),
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},
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TableName: aws.String(tableName),
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}
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_, err := dynClient.CreateTable(createInput)
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if err != nil {
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t.Fatal(err)
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}
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// now wait until it's ACTIVE
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start := time.Now()
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time.Sleep(time.Second)
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describeInput := &dynamodb.DescribeTableInput{
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TableName: aws.String(tableName),
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}
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for {
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resp, err := dynClient.DescribeTable(describeInput)
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if err != nil {
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t.Fatal(err)
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}
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if *resp.Table.TableStatus == "ACTIVE" {
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return
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}
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if time.Since(start) > time.Minute {
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t.Fatalf("timed out creating DynamoDB table %s", tableName)
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}
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time.Sleep(3 * time.Second)
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}
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}
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func deleteDynamoDBTable(t *testing.T, dynClient *dynamodb.DynamoDB, tableName string) {
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params := &dynamodb.DeleteTableInput{
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TableName: aws.String(tableName),
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}
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_, err := dynClient.DeleteTable(params)
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if err != nil {
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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)
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}
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}
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