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

api/stacks/deployments/deployer.go

@@ -0,0 +1,95 @@
+package deployments
+
+import (
+	"context"
+	"sync"
+
+	"github.com/pkg/errors"
+
+	portainer "github.com/portainer/portainer/api"
+	k "github.com/portainer/portainer/api/kubernetes"
+)
+
+type StackDeployer interface {
+	DeploySwarmStack(stack *portainer.Stack, endpoint *portainer.Endpoint, registries []portainer.Registry, prune bool, pullImage bool) error
+	DeployComposeStack(stack *portainer.Stack, endpoint *portainer.Endpoint, registries []portainer.Registry, forcePullImage bool, forceRereate bool) error
+	DeployKubernetesStack(stack *portainer.Stack, endpoint *portainer.Endpoint, user *portainer.User) error
+}
+
+type stackDeployer struct {
+	lock                *sync.Mutex
+	swarmStackManager   portainer.SwarmStackManager
+	composeStackManager portainer.ComposeStackManager
+	kubernetesDeployer  portainer.KubernetesDeployer
+}
+
+// NewStackDeployer inits a stackDeployer struct with a SwarmStackManager, a ComposeStackManager and a KubernetesDeployer
+func NewStackDeployer(swarmStackManager portainer.SwarmStackManager, composeStackManager portainer.ComposeStackManager, kubernetesDeployer portainer.KubernetesDeployer) *stackDeployer {
+	return &stackDeployer{
+		lock:                &sync.Mutex{},
+		swarmStackManager:   swarmStackManager,
+		composeStackManager: composeStackManager,
+		kubernetesDeployer:  kubernetesDeployer,
+	}
+}
+
+func (d *stackDeployer) DeploySwarmStack(stack *portainer.Stack, endpoint *portainer.Endpoint, registries []portainer.Registry, prune bool, pullImage bool) error {
+	d.lock.Lock()
+	defer d.lock.Unlock()
+
+	d.swarmStackManager.Login(registries, endpoint)
+	defer d.swarmStackManager.Logout(endpoint)
+
+	return d.swarmStackManager.Deploy(stack, prune, pullImage, endpoint)
+}
+
+func (d *stackDeployer) DeployComposeStack(stack *portainer.Stack, endpoint *portainer.Endpoint, registries []portainer.Registry, forcePullImage bool, forceRereate bool) error {
+	d.lock.Lock()
+	defer d.lock.Unlock()
+
+	d.swarmStackManager.Login(registries, endpoint)
+	defer d.swarmStackManager.Logout(endpoint)
+
+	// --force-recreate doesn't pull updated images
+	if forcePullImage {
+		err := d.composeStackManager.Pull(context.TODO(), stack, endpoint)
+		if err != nil {
+			return err
+		}
+	}
+
+	err := d.composeStackManager.Up(context.TODO(), stack, endpoint, forceRereate)
+	if err != nil {
+		d.composeStackManager.Down(context.TODO(), stack, endpoint)
+	}
+	return err
+}
+
+func (d *stackDeployer) DeployKubernetesStack(stack *portainer.Stack, endpoint *portainer.Endpoint, user *portainer.User) error {
+	d.lock.Lock()
+	defer d.lock.Unlock()
+
+	appLabels := k.KubeAppLabels{
+		StackID:   int(stack.ID),
+		StackName: stack.Name,
+		Owner:     user.Username,
+	}
+
+	if stack.GitConfig == nil {
+		appLabels.Kind = "content"
+	} else {
+		appLabels.Kind = "git"
+	}
+
+	k8sDeploymentConfig, err := CreateKubernetesStackDeploymentConfig(stack, d.kubernetesDeployer, appLabels, user, endpoint)
+	if err != nil {
+		return errors.Wrap(err, "failed to create temp kub deployment files")
+	}
+
+	err = k8sDeploymentConfig.Deploy()
+	if err != nil {
+		return errors.Wrap(err, "failed to deploy kubernetes application")
+	}
+
+	return nil
+}