feat: make deploy only deploy

See coop-cloud/organising#127.

cli/app/deploy.go

@@ -6,9 +6,11 @@ import (
 
 	abraFormatter "coopcloud.tech/abra/cli/formatter"
 	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/pkg/catalogue"
 	"coopcloud.tech/abra/pkg/client"
 	stack "coopcloud.tech/abra/pkg/client/stack"
 	"coopcloud.tech/abra/pkg/config"
+	"coopcloud.tech/abra/pkg/recipe"
 	"github.com/AlecAivazis/survey/v2"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli/v2"
@@ -18,14 +20,55 @@ var appDeployCommand = &cli.Command{
 	Name:    "deploy",
 	Aliases: []string{"d"},
 	Usage:   "Deploy an app",
+	Flags: []cli.Flag{
+		internal.ForceFlag,
+	},
+	Description: `
+This command deploys a new instance of an app. It does not support changing the
+version of an existing deployed app, for this you need to look at the "abra app
+upgrade <app>" command. You may pass "--force" to re-deploy the same version.
+`,
 	Action: func(c *cli.Context) error {
 		app := internal.ValidateApp(c)
+		stackName := app.StackName()
 
 		cl, err := client.New(app.Server)
 		if err != nil {
 			logrus.Fatal(err)
 		}
 
+		logrus.Debugf("checking whether '%s' is already deployed", stackName)
+
+		isDeployed, deployedVersion, err := stack.IsDeployed(c.Context, cl, stackName)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		if isDeployed {
+			if internal.Force {
+				logrus.Infof("continuing with deployment due to '--force/-f' being set")
+			} else {
+				logrus.Fatalf("'%s' is already deployed", stackName)
+			}
+		}
+
+		version := deployedVersion
+		if version == "" {
+			versions, err := catalogue.GetRecipeCatalogueVersions(app.Type)
+			if err != nil {
+				logrus.Fatal(err)
+			}
+			if len(versions) > 0 {
+				version = versions[len(versions)-1]
+				logrus.Infof("choosing '%s' as version to deploy", version)
+				recipe.EnsureVersion(app.Type, version)
+			} else {
+				version = "latest commit"
+				logrus.Warning("no versions detected, using latest commit")
+				recipe.EnsureLatest(app.Type)
+			}
+		}
+
 		abraShPath := fmt.Sprintf("%s/%s/%s", config.APPS_DIR, app.Type, "abra.sh")
 		abraShEnv, err := config.ReadAbraShEnvVars(abraShPath)
 		if err != nil {
@@ -41,7 +84,7 @@ var appDeployCommand = &cli.Command{
 		}
 		deployOpts := stack.Deploy{
 			Composefiles: composeFiles,
-			Namespace:    app.StackName(),
+			Namespace:    stackName,
 			Prune:        false,
 			ResolveImage: stack.ResolveImageAlways,
 		}
@@ -50,7 +93,7 @@ var appDeployCommand = &cli.Command{
 			logrus.Fatal(err)
 		}
 
-		if err := DeployOverview(app); err != nil {
+		if err := DeployOverview(app, version); err != nil {
 			logrus.Fatal(err)
 		}
 
@@ -75,7 +118,7 @@ var appDeployCommand = &cli.Command{
 }
 
 // DeployOverview shows a deployment overview
-func DeployOverview(app config.App) error {
+func DeployOverview(app config.App, version string) error {
 	tableCol := []string{"server", "compose", "domain", "stack", "version"}
 	table := abraFormatter.CreateTable(tableCol)
 
@@ -84,7 +127,7 @@ func DeployOverview(app config.App) error {
 		deployConfig = strings.Join(strings.Split(composeFiles, ":"), "\n")
 	}
 
-	table.Append([]string{app.Server, deployConfig, app.Domain, app.StackName(), "unknown"})
+	table.Append([]string{app.Server, deployConfig, app.Domain, app.StackName(), version})
 	table.Render()
 
 	response := false

pkg/client/stack/stack.go

@@ -2,6 +2,7 @@ package stack
 
 import (
 	"context"
+	"fmt"
 	"strings"
 
 	abraClient "coopcloud.tech/abra/pkg/client"
@@ -92,6 +93,37 @@ func GetAllDeployedServices(contextName string) StackStatus {
 	return StackStatus{services, nil}
 }
 
+// IsDeployed chekcks whether an appp is deployed or not.
+func IsDeployed(ctx context.Context, cl *dockerclient.Client, stackName string) (bool, string, error) {
+	version := ""
+	isDeployed := false
+
+	filter := filters.NewArgs()
+	filter.Add("label", fmt.Sprintf("%s=%s", convert.LabelNamespace, stackName))
+
+	services, err := cl.ServiceList(ctx, types.ServiceListOptions{Filters: filter})
+	if err != nil {
+		return false, version, err
+	}
+
+	if len(services) > 0 {
+		for _, service := range services {
+			labelKey := fmt.Sprintf("coop-cloud.%s.version", stackName)
+			if deployedVersion, ok := service.Spec.Labels[labelKey]; ok {
+				version = deployedVersion
+				break
+			}
+		}
+
+		logrus.Debugf("'%s' has been detected as deployed with version '%s'", stackName, version)
+
+		return true, version, nil
+	}
+
+	logrus.Debugf("'%s' has been detected as not deployed", stackName)
+	return isDeployed, version, nil
+}
+
 // pruneServices removes services that are no longer referenced in the source
 func pruneServices(ctx context.Context, cl *dockerclient.Client, namespace convert.Namespace, services map[string]struct{}) {
 	oldServices, err := GetStackServices(ctx, cl, namespace.Name())

pkg/recipe/recipe.go

@@ -119,10 +119,10 @@ func EnsureVersion(recipeName, version string) error {
 		return nil
 	}
 
-	logrus.Debugf("read '%s' as tags for recipe '%s'", tags, recipeName)
-
+	var parsedTags []string
 	var tagRef plumbing.ReferenceName
 	if err := tags.ForEach(func(ref *plumbing.Reference) (err error) {
+		parsedTags = append(parsedTags, ref.Name().Short())
 		if ref.Name().Short() == version {
 			tagRef = ref.Name()
 		}
@@ -131,6 +131,8 @@ func EnsureVersion(recipeName, version string) error {
 		return err
 	}
 
+	logrus.Debugf("read '%s' as tags for recipe '%s'", strings.Join(parsedTags, ", "), recipeName)
+
 	if tagRef.String() == "" {
 		return fmt.Errorf("%s is not available?", version)
 	}
@@ -145,7 +147,48 @@ func EnsureVersion(recipeName, version string) error {
 		return err
 	}
 
-	logrus.Debugf("successfully checked '%s' out to '%s' in '%s'", recipeName, tagRef, recipeDir)
+	logrus.Debugf("successfully checked '%s' out to '%s' in '%s'", recipeName, tagRef.Short(), recipeDir)
+
+	return nil
+}
+
+// EnsureLatest makes sure the latest commit is checkout on for a local recipe repository.
+func EnsureLatest(recipeName string) error {
+	recipeDir := path.Join(config.ABRA_DIR, "apps", recipeName)
+
+	logrus.Debugf("attempting to open git repository in '%s'", recipeDir)
+
+	repo, err := git.PlainOpen(recipeDir)
+	if err != nil {
+		return err
+	}
+
+	worktree, err := repo.Worktree()
+	if err != nil {
+		return err
+	}
+
+	branch := "master"
+	if _, err := repo.Branch("master"); err != nil {
+		if _, err := repo.Branch("main"); err != nil {
+			logrus.Debugf("failed to select branch in '%s'", path.Join(config.APPS_DIR, recipeName))
+			return err
+		}
+		branch = "main"
+	}
+
+	refName := fmt.Sprintf("refs/heads/%s", branch)
+	checkOutOpts := &git.CheckoutOptions{
+		Create: false,
+		Force:  true,
+		Keep:   false,
+		Branch: plumbing.ReferenceName(refName),
+	}
+
+	if err := worktree.Checkout(checkOutOpts); err != nil {
+		logrus.Debugf("failed to check out '%s' in '%s'", branch, recipeDir)
+		return err
+	}
 
 	return nil
 }