allow to adjust the heroku app name

Author: angelo-v

movies/Makefile

@@ -1,12 +1,14 @@
+APP ?= hydra-movies
+
 image: ## build image and push to heroku registry
-	heroku container:push web --app hydra-movies
+	heroku container:push web --app $(APP)
 
 release: ## release container to heroku
-	heroku container:release web --app hydra-movies
+	heroku container:release web --app $(APP)
 
 deploy: image release
 
 logs: ## show heroku logs
-	heroku logs --tail --app hydra-movies
+	heroku logs --tail --app $(APP)
 
 .PHONY: image release deploy logs

movies/docs/deployment.md

@@ -11,4 +11,19 @@ Afterwards run the follwing command within the `movies` directory:
 
 ```bash
 make deploy
-```
+```
+
+### Deploy to your own account
+
+You can deploy to your own heroku account. First log in:
+ 
+ ```bash
+ heroku login
+ heroku container:login
+ ```
+ 
+Then run `make` with specifying the `APP` name:
+
+```bash
+make APP=my-hydra-movies deploy
+```