Update DOCKER.md (#75)

DOCKER.md

@@ -1,62 +1,3 @@
 # Docker template for ScandiPWA based on Magento ^2.3
 
-Detailed docs are available in [docs](docs.scandipwa.com) folder
-
-## Composer Authentification
-
-For `COMPOSER_AUTH` use your personal Magento 2 key from marketplace. [More info here](https://docs.scandipwa.com/#/docker/A-requirements.md).
-
-## Host environment variables must be set
-
-```bash
-export COMPOSER_AUTH='{"http-basic":{"repo.magento.com": {"username": "REPLACE_THIS", "password": "REPLACE_THIS"}}}'
-```
-
-## Quick start
-
-1.  Requirements are met, see above
-2.  Clone repository and cd to it
-3.  `composer.json` must be present in `/src`
-4.  Run `docker-compose -f docker-compose.yml -f docker-compose.local.yml up -d`
-5.  Check with `docker-compose ps` that all containers `Running`
-6.  Open <http://localhost:3000> to check if Magento is started
-
-### Troubleshooting
-
-#### See the debug
-
-If something does not work, like you see 404 when opening the site.
-
-1.  Run docker without the `-d` -> `docker-compose -f docker-compose.yml -f docker-compose.local.yml up`
-2.  Check logs of running containers by executing: `docker-compose logs -f`
-
-#### Container exited exited with code 1
-
-If you see error like this
-```console
-[Composer\Downloader\TransportException]                                   
-app_1      |   The 'https://repo.magento.com/packages.json' URL required authentication.  
-app_1      |   You must be using the interactive console to authenticate
-```
-
-It means your `COMPOSER_AUTH` has wrong credentials. 
-
-Please ensure that the keys are correct and that you ran the `export` command in **the same terminal window** as you 
-run the `docker-compose`
-
-#### Issues with directory permissions
-
-Make sure you can run docker without `sudo`. See [Manage Docker as a non-root user](https://docs.docker.com/install/linux/linux-postinstall/)
-
-#### Can't get into bash in the container
-
-If you see error like this
-```bash
-$ docker-compose exec -u user app bash -l
-unable to find user user: no matching entries in passwd file
-``` 
-there is an issue with your `app` container.
-
-1.  Make sure you have latest version of the docker
-2.  (Optional, if previous versions exists on your machine) Run `docker-compose -f docker-compose.yml -f docker-compose.local.yml -f docker-compose.ssl.yml -f docker-compose.frontend.yml build`
-3.  Start containers with `--force-recreate` like this `docker-compose -f docker-compose.yml -f docker-compose.local.yml -f docker-compose.ssl.yml -f docker-compose.frontend.yml up --force-recreate`
+Find a step by step installation guide [here](https://docs.scandipwa.com/docs/installation/docker/linux/)!