Post-deploy abra.sh hooks (!292)

This solves coop-cloud/organising#235

Co-authored-by: Moritz <moritz.m@local-it.org>
Reviewed-on: coop-cloud/abra#292

cli/internal/deploy.go

@@ -18,6 +18,7 @@ import (
 	"coopcloud.tech/abra/pkg/runtime"
 	"coopcloud.tech/abra/pkg/upstream/stack"
 	"github.com/AlecAivazis/survey/v2"
+	dockerClient "github.com/docker/docker/client"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
@@ -164,6 +165,68 @@ func DeployAction(c *cli.Context) error {
 		logrus.Fatal(err)
 	}
 
+	postDeployCmds, ok := app.Env["POST_DEPLOY_CMDS"]
+	if ok && !DontWaitConverge {
+		logrus.Debugf("run the following post-deploy commands: %s", postDeployCmds)
+		if err := PostCmds(cl, app, postDeployCmds); err != nil {
+			logrus.Fatalf("attempting to run post deploy commands, saw: %s", err)
+		}
+	}
+
+	return nil
+}
+
+// PostCmds parses a string of commands and executes them inside of the respective services
+// the commands string must have the following format:
+// "<service> <command> <arguments>|<service> <command> <arguments>|... "
+func PostCmds(cl *dockerClient.Client, app config.App, commands string) error {
+	abraSh := path.Join(config.RECIPES_DIR, app.Recipe, "abra.sh")
+	if _, err := os.Stat(abraSh); err != nil {
+		if os.IsNotExist(err) {
+			return fmt.Errorf(fmt.Sprintf("%s does not exist for %s?", abraSh, app.Name))
+		}
+		return err
+	}
+
+	for _, command := range strings.Split(commands, "|") {
+		commandParts := strings.Split(command, " ")
+		if len(commandParts) < 2 {
+			return fmt.Errorf(fmt.Sprintf("not enough arguments: %s", command))
+		}
+		targetServiceName := commandParts[0]
+		cmdName := commandParts[1]
+		parsedCmdArgs := ""
+		if len(commandParts) > 2 {
+			parsedCmdArgs = fmt.Sprintf("%s ", strings.Join(commandParts[2:], " "))
+		}
+		logrus.Infof("running post-command '%s %s' in container %s", cmdName, parsedCmdArgs, targetServiceName)
+
+		if err := EnsureCommand(abraSh, app.Recipe, cmdName); err != nil {
+			return err
+		}
+
+		serviceNames, err := config.GetAppServiceNames(app.Name)
+		if err != nil {
+			return err
+		}
+
+		matchingServiceName := false
+		for _, serviceName := range serviceNames {
+			if serviceName == targetServiceName {
+				matchingServiceName = true
+			}
+		}
+
+		if !matchingServiceName {
+			return fmt.Errorf(fmt.Sprintf("no service %s for %s?", targetServiceName, app.Name))
+		}
+
+		logrus.Debugf("running command %s %s within the context of %s_%s", cmdName, parsedCmdArgs, app.StackName(), targetServiceName)
+
+		if err := RunCmdRemote(cl, app, abraSh, targetServiceName, cmdName, parsedCmdArgs); err != nil {
+			return err
+		}
+	}
 	return nil
 }