refactor(stack): stack build process backend only [EE-4342] (#7750)

api/stacks/deployments/deployment_kubernetes_config.go

@@ -0,0 +1,89 @@
+package deployments
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"github.com/pkg/errors"
+	portainer "github.com/portainer/portainer/api"
+	"github.com/portainer/portainer/api/filesystem"
+	k "github.com/portainer/portainer/api/kubernetes"
+	"github.com/portainer/portainer/api/stacks/stackutils"
+)
+
+type KubernetesStackDeploymentConfig struct {
+	stack             *portainer.Stack
+	kuberneteDeployer portainer.KubernetesDeployer
+	appLabels         k.KubeAppLabels
+	user              *portainer.User
+	endpoint          *portainer.Endpoint
+	output            string
+}
+
+func CreateKubernetesStackDeploymentConfig(stack *portainer.Stack, kubeDeployer portainer.KubernetesDeployer, appLabels k.KubeAppLabels, user *portainer.User, endpoint *portainer.Endpoint) (*KubernetesStackDeploymentConfig, error) {
+
+	return &KubernetesStackDeploymentConfig{
+		stack:             stack,
+		kuberneteDeployer: kubeDeployer,
+		appLabels:         appLabels,
+		user:              user,
+		endpoint:          endpoint,
+	}, nil
+}
+
+func (config *KubernetesStackDeploymentConfig) GetUsername() string {
+	return config.user.Username
+}
+
+func (config *KubernetesStackDeploymentConfig) Deploy() error {
+	fileNames := stackutils.GetStackFilePaths(config.stack, false)
+
+	manifestFilePaths := make([]string, len(fileNames))
+
+	tmpDir, err := ioutil.TempDir("", "kub_deployment")
+	if err != nil {
+		return errors.Wrap(err, "failed to create temp kub deployment directory")
+	}
+
+	defer os.RemoveAll(tmpDir)
+
+	for _, fileName := range fileNames {
+		manifestFilePath := filesystem.JoinPaths(tmpDir, fileName)
+		manifestContent, err := ioutil.ReadFile(filesystem.JoinPaths(config.stack.ProjectPath, fileName))
+		if err != nil {
+			return errors.Wrap(err, "failed to read manifest file")
+		}
+
+		if config.stack.IsComposeFormat {
+			manifestContent, err = config.kuberneteDeployer.ConvertCompose(manifestContent)
+			if err != nil {
+				return errors.Wrap(err, "failed to convert docker compose file to a kube manifest")
+			}
+		}
+
+		manifestContent, err = k.AddAppLabels(manifestContent, config.appLabels.ToMap())
+		if err != nil {
+			return errors.Wrap(err, "failed to add application labels")
+		}
+
+		err = filesystem.WriteToFile(manifestFilePath, []byte(manifestContent))
+		if err != nil {
+			return errors.Wrap(err, "failed to create temp manifest file")
+		}
+
+		manifestFilePaths = append(manifestFilePaths, manifestFilePath)
+	}
+
+	output, err := config.kuberneteDeployer.Deploy(config.user.ID, config.endpoint, manifestFilePaths, config.stack.Namespace)
+	if err != nil {
+		return fmt.Errorf("failed to deploy kubernete stack: %w", err)
+	}
+
+	config.output = output
+	return nil
+}
+
+func (config *KubernetesStackDeploymentConfig) GetResponse() string {
+	return config.output
+}