feat(stacks): support automated sync for stacks [EE-248] (#5340)

api/http/handler/stacks/autoupdate.go

@@ -0,0 +1,38 @@
+package stacks
+
+import (
+	"log"
+	"net/http"
+	"time"
+
+	httperror "github.com/portainer/libhttp/error"
+	portainer "github.com/portainer/portainer/api"
+	"github.com/portainer/portainer/api/scheduler"
+	"github.com/portainer/portainer/api/stacks"
+)
+
+func startAutoupdate(stackID portainer.StackID, interval string, scheduler *scheduler.Scheduler, stackDeployer stacks.StackDeployer, datastore portainer.DataStore, gitService portainer.GitService) (jobID string, e *httperror.HandlerError) {
+	d, err := time.ParseDuration(interval)
+	if err != nil {
+		return "", &httperror.HandlerError{StatusCode: http.StatusBadRequest, Message: "Unable to parse stack's auto update interval", Err: err}
+	}
+
+	jobID = scheduler.StartJobEvery(d, func() {
+		if err := stacks.RedeployWhenChanged(stackID, stackDeployer, datastore, gitService); err != nil {
+			log.Printf("[ERROR] [http,stacks] [message: failed redeploying] [err: %s]\n", err)
+		}
+	})
+
+	return jobID, nil
+}
+
+func stopAutoupdate(stackID portainer.StackID, jobID string, scheduler scheduler.Scheduler) {
+	if jobID == "" {
+		return
+	}
+
+	if err := scheduler.StopJob(jobID); err != nil {
+		log.Printf("[WARN] could not stop the job for the stack %v", stackID)
+	}
+
+}