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Signed-off-by: Chanwit Kaewkasi <chanwit@gmail.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| package runner | ||
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| import ( | ||
| "context" | ||
| "fmt" | ||
| "io" | ||
| "reflect" | ||
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| "github.com/hashicorp/terraform-exec/tfexec" | ||
| infrav1 "github.com/weaveworks/tf-controller/api/v1alpha1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| apierrors "k8s.io/apimachinery/pkg/api/errors" | ||
| metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" | ||
| "k8s.io/apimachinery/pkg/types" | ||
| ctrl "sigs.k8s.io/controller-runtime" | ||
| ) | ||
|
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| func (r *TerraformRunnerServer) tfOutput(ctx context.Context, opts ...tfexec.OutputOption) (map[string]tfexec.OutputMeta, error) { | ||
| log := ctrl.LoggerFrom(ctx, "instance-id", r.InstanceID).WithName(loggerName) | ||
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| // This is the only place where we disable the logger | ||
| r.tf.SetStdout(io.Discard) | ||
| r.tf.SetStderr(io.Discard) | ||
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| defer r.initLogger(log) | ||
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| return r.tf.Output(ctx, opts...) | ||
| } | ||
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| func (r *TerraformRunnerServer) Output(ctx context.Context, req *OutputRequest) (*OutputReply, error) { | ||
| log := ctrl.LoggerFrom(ctx, "instance-id", r.InstanceID).WithName(loggerName) | ||
| log.Info("creating outputs") | ||
| if req.TfInstance != r.InstanceID { | ||
| err := fmt.Errorf("no TF instance found") | ||
| log.Error(err, "no terraform") | ||
| return nil, err | ||
| } | ||
|
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| outputs, err := r.tfOutput(ctx) | ||
| if err != nil { | ||
| log.Error(err, "unable to get outputs") | ||
| return nil, err | ||
| } | ||
|
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| outputReply := &OutputReply{Outputs: map[string]*OutputMeta{}} | ||
| for k, v := range outputs { | ||
| outputReply.Outputs[k] = &OutputMeta{ | ||
| Sensitive: v.Sensitive, | ||
| Type: v.Type, | ||
| Value: v.Value, | ||
| } | ||
| } | ||
| return outputReply, nil | ||
| } | ||
|
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| func (r *TerraformRunnerServer) WriteOutputs(ctx context.Context, req *WriteOutputsRequest) (*WriteOutputsReply, error) { | ||
| log := ctrl.LoggerFrom(ctx, "instance-id", r.InstanceID).WithName(loggerName) | ||
| log.Info("write outputs to secret") | ||
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| objectKey := types.NamespacedName{Namespace: req.Namespace, Name: req.SecretName} | ||
| var outputSecret corev1.Secret | ||
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| drift := true | ||
| create := true | ||
| if err := r.Client.Get(ctx, objectKey, &outputSecret); err == nil { | ||
| // if everything is there, we don't write anything | ||
| if reflect.DeepEqual(outputSecret.Data, req.Data) { | ||
| drift = false | ||
| } else { | ||
| // found, but need update | ||
| create = false | ||
| } | ||
| } else if apierrors.IsNotFound(err) == false { | ||
| log.Error(err, "unable to get output secret") | ||
| return nil, err | ||
| } | ||
|
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| if drift { | ||
| if create { | ||
| vTrue := true | ||
| outputSecret = corev1.Secret{ | ||
| ObjectMeta: metav1.ObjectMeta{ | ||
| Name: req.SecretName, | ||
| Namespace: req.Namespace, | ||
| OwnerReferences: []metav1.OwnerReference{ | ||
| { | ||
| APIVersion: infrav1.GroupVersion.Group + "/" + infrav1.GroupVersion.Version, | ||
| Kind: infrav1.TerraformKind, | ||
| Name: req.Name, | ||
| UID: types.UID(req.Uuid), | ||
| Controller: &vTrue, | ||
| }, | ||
| }, | ||
| }, | ||
| Type: corev1.SecretTypeOpaque, | ||
| Data: req.Data, | ||
| } | ||
|
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| err := r.Client.Create(ctx, &outputSecret) | ||
| if err != nil { | ||
| log.Error(err, "unable to create secret") | ||
| return nil, err | ||
| } | ||
| } else { | ||
| outputSecret.Data = req.Data | ||
| err := r.Client.Update(ctx, &outputSecret) | ||
| if err != nil { | ||
| log.Error(err, "unable to update secret") | ||
| return nil, err | ||
| } | ||
| } | ||
|
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| return &WriteOutputsReply{Message: "ok", Changed: true}, nil | ||
| } | ||
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| return &WriteOutputsReply{Message: "ok", Changed: false}, nil | ||
| } | ||
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| func (r *TerraformRunnerServer) GetOutputs(ctx context.Context, req *GetOutputsRequest) (*GetOutputsReply, error) { | ||
| log := ctrl.LoggerFrom(ctx, "instance-id", r.InstanceID).WithName(loggerName) | ||
| log.Info("get outputs") | ||
| outputKey := types.NamespacedName{Namespace: req.Namespace, Name: req.SecretName} | ||
| outputSecret := corev1.Secret{} | ||
| err := r.Client.Get(ctx, outputKey, &outputSecret) | ||
| if err != nil { | ||
| err = fmt.Errorf("error getting terraform output for health checks: %s", err) | ||
| log.Error(err, "unable to check terraform health") | ||
| return nil, err | ||
| } | ||
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| outputs := map[string]string{} | ||
| // parse map[string][]byte to map[string]string for go template parsing | ||
| if len(outputSecret.Data) > 0 { | ||
| for k, v := range outputSecret.Data { | ||
| outputs[k] = string(v) | ||
| } | ||
| } | ||
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| return &GetOutputsReply{Outputs: outputs}, nil | ||
| } |