Move all the info from the readme to the docs

Author: rolandgeider

README.md

@@ -3,347 +3,14 @@
 
 # docker compose stacks for wger
 
-Contains 3 docker compose environments:
+The prod docker compose file starts up a production environment with the application
+server, a reverse proxy, a database, a caching server and a celery queue all 
+configured.
 
-* prod (in root of this repository)
-* dev (uses sqlite)
-* dev-postgres (uses postgresql)
+Basically, just do `docker compose up -d`. For more details, consult the documentation:
 
-## Introduction
-
-The prod docker compose file starts up a production environment with gunicorn
-as the webserver, postgres as a database and redis for caching with nginx
-used as a reverse proxy.
-
-The two develop environments don't use redis (caching), celery (jobs) or nginx.
-
-The database, static files and uploaded images are mounted as volumes so
-the data is persisted. The only thing you need to do is update the docker
-images. Consult the docker volume command for details on how to access or
-backup this data.
-
-It is recommended to regularly pull the latest version of the images from this
-repository, since sometimes new configurations or environmental variables are
-added.
-
-# Production
-
-### Configuration
-
-Instead of editing the compose file or the env file directly, it is recommended
-to extend it. That way you can more easily pull changes from this repository.
-
-For example, you might not want to run the application on port 80 because some
-other service in your network is already using it. For this, simply create a new
-file called `docker-compose.override.yml` with the following content:
-
-    services:
-      nginx:
-        ports:
-          - "8080:80"
-
-Now the port setting will be overwritten from the configured nginx service when
-you do a `docker compose up`. However, note that compose will concatenate both sets
-of values so in this case the application will be binded to 8080 (from the override)
-*and* 80 (from the regular compose file). It seems that at the moment the only
-workaround is remove the ports settings altogether from the compose file.
-
-The same applies to the env variables, just create a new file called e.g. `my.env`
-and add it after the provided `prod.env` for the web service (again, this is
-`docker-compose.override.yml`). There you add the settings that you changed, and only
-those, which makes it easier to troubleshoot, etc.:
-
-    web:
-      env_file:
-        - ./config/prod.env
-        - ./config/my.env
-
-To add a web interface for the celery queue, add a new service to the override file:
-
-    celery_flower:
-      image: wger/server:latest
-      container_name: wger_celery_flower
-      command: /start-flower
-      env_file:
-        - ./config/prod.env
-      ports:
-        - "5555:5555"
-      healthcheck:
-        test: wget --no-verbose --tries=1 http://localhost:5555/healthcheck
-        interval: 10s
-        timeout: 5s
-        retries: 5
-      depends_on:
-        celery_worker:
-          condition: service_healthy
-
-For more information and possibilities consult <https://docs.docker.com/compose/extends/>
-
-### 1 - Start
-
-1. Cd into the environment of your choice.
-2. To start all services:
-
-    docker compose up -d
-  
-Optionally download current exercises, exercise images and the ingredients 
-from wger.de. Please note that `load-online-fixtures` will overwrite any local
-changes you might have while `sync-ingredients` should be used afterward once
-you have imported the initial fixtures:
-
-    docker compose exec web python3 manage.py sync-exercises
-    docker compose exec web python3 manage.py download-exercise-images
-    docker compose exec web python3 manage.py download-exercise-videos
- 
-    # Loads a base set of ingredients
-    docker compose exec web wger load-online-fixtures
-    
-    # optionally run this afterwards to sync all the ingredients (around 1GB,
-    # this process takes a loooong time):
-    docker compose exec web python3 manage.py sync-ingredients-async
-
-(these steps are configured by default to run regularly in the background, but 
-can also run on startup as well, see the options in `prod.env`.)
-    
-
-Then open <http://localhost> (or your server's IP) and log in as: **admin**,
-password **adminadmin**
-
-
-### 2 - Update the application
-
-Just remove the containers and pull the newest version:
-
-    docker compose down
-    docker compose pull
-    docker compose up
-
-### 3 - Lifecycle Management
-
-To stop all services issue a stop command, this will preserve all containers
-and volumes:
-
-    docker compose stop
-
-To start everything up again:
-
-    docker compose start
-
-To remove all containers (except for the volumes)
-
-    docker compose down
-
-To view the logs:
-
-    docker compose logs -f
-
-You might need to issue other commands or do other manual work in the container,
-e.g.
-
-     docker compose exec web yarn install
-     docker compose exec --user root web /bin/bash
-     docker compose exec --user postgres db psql wger -U wger
-
-## Deployment
-
-The easiest way to deploy this application to prod is to use a reverse proxy like
-nginx or traefik. You can change the port this application exposes and reverse proxy
-your domain to it. For this just edit the "nginx" service in docker-compose.yml and
-set the port to some value, e.g. `"8080:80"` then configure your proxy to forward
-requests to it, e.g. for nginx (no other ports need to be changed, they are used
-only within the application's docker network):
-
-Also notice that the application currently needs to run on its own (sub)domain
-and not in a subdirectory, so `location /wger {` will probably only mostly work. 
-
-
-```nginx
-upstream wger {
-    server 123.456.789.0:8080;
-}
-
-server {
-    listen 80;
-    listen [::]:443 ssl;
-    listen 443 ssl;
-
-    location / {
-        proxy_pass http://wger;
-        proxy_set_header Host $http_host;
-        proxy_set_header X-Real-IP $remote_addr;
-        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-        proxy_set_header X-Forwarded-Proto $scheme;
-        proxy_redirect off;
-    }
-
-    server_name my.domain.example.com;
-
-    ssl_certificate /path/to/https/certificate.crt;
-    ssl_certificate_key /path/to/https/certificate.key;
-}
-```
-
-### If you get CSRF errors
-
-If you want to use HTTPS like in the example config you need to add some
-additional configurations. Since the HTTPS connections are reversed proxied,
-the secure connection terminates there, the application will receive a regular
-HTTP request and django's [CSRF protection](https://docs.djangoproject.com/en/4.1/ref/csrf/)
-will kick in.
-
-To solve this, update the env file and either
-
-* manually set a list of your domain names and/or server IPs 
-  `CSRF_TRUSTED_ORIGINS=https://my.domain.example.com,https://118.999.881.119:8008`
-  If you are unsure what origin to add here, set the debug setting to true, restart
-  and try again, the error message that appears will have the origin prominently
-  displayed. Note: the port is important!
-* or set the `X-Forwarded-Proto` header like in the example and set
-  `X_FORWARDED_PROTO_HEADER_SET=True`. If you do this consult the
-  [documentation](https://docs.djangoproject.com/en/4.1/ref/settings/#secure-proxy-ssl-header)
-  as there are some security considerations.
-
-You might want to set `DJANGO_DEBUG` to true while you are debugging this is you
-encounter errors.
-
-
-### Automatically start service
-
-If everything works correctly, you will want to start the compose file as a
-service so that it auto restarts when you reboot the server. If you use systemd,
-this can be done with a simple file. Create the file `/etc/systemd/system/wger.service`
-and enter the following content (check where the absolute path of the docker
-command is with `which docker`)
-
-```
-[Unit]
-Description=wger docker compose service
-PartOf=docker.service
-After=docker.service
-
-[Service]
-Type=oneshot
-RemainAfterExit=true
-WorkingDirectory=/path/to/the/docker/compose/
-ExecStart=/usr/bin/docker compose up -d --remove-orphans
-ExecStop=/usr/bin/docker compose down
-
-[Install]
-WantedBy=multi-user.target
-```
-
-Read the file with `systemctl daemon-reload` and start it with
-`systemctl start wger`. If there are no errors and `systemctl status wger`
-shows that the service is active (this might take some time), everything went
-well. With `systemctl enable wger` the service will be automatically restarted
-after a reboot.
-
-### Backup
-
-**Database volume:** The most important thing to backup. For this just make
-a dump and restore it when needed
-
-```
-# Stop all other containers so the db is not changed while you export it
-docker compose stop web nginx cache celery_worker celery_beat
-docker compose exec db pg_dumpall --clean --username wger > backup.sql
-docker compose start
-
-# When you need to restore it
-docker compose stop
-docker volume remove docker_postgres-data
-docker compose up db
-cat backup.sql | docker compose exec -T db psql --username wger --dbname wger
-docker compose up
-```
-
-**Media volume:** If you haven't uploaded any own images (exercises, gallery),
-you don't need to backup this, the contents can just be downloaded again. If
-you have, please consult these possibilities:
-
-* <https://www.docker.com/blog/back-up-and-share-docker-volumes-with-this-extension/>
-* <https://github.com/BretFisher/docker-vackup>
-
-
-**Static volume:** The contents of this volume are 100% generated and recreated
-on startup, no need to backup anything
-
-### Postgres Upgrade
-
-It is sadly not possible to automatically upgrade between postgres versions,
-you need to perform the upgrade manually. Since the amount of data the app
-generates is small a simple dump and restore is the simplest way to do this.
-
-If you pulled new changes from this repo and got the error message "The data
-directory was initialized by PostgreSQL version 12, which is not compatible
-with this version 15." this is for you.
-
-See also <https://github.com/docker-library/postgres/issues/37>
-
-
-```bash
-# Checkout the last version of the composer file that uses postgres 12 
-git checkout pg-12
-
-# Stop all other containers
-docker compose stop web nginx cache celery_worker celery_beat
-
-# Make a dump of the database and remove the container and volume
-docker compose exec db pg_dumpall --clean --username wger > backup.sql
-docker compose stop db
-docker compose down
-docker volume remove docker_postgres-data
-
-# Checkout current version, import the dump and start everything
-git checkout master
-docker compose up db
-cat backup.sql | docker compose exec -T db psql --username wger --dbname wger
-docker compose exec -T db psql --username wger --dbname wger -c "ALTER USER wger WITH PASSWORD 'wger'"
-docker compose up
-rm backup.sql
-```
-
-## Building
-
-If you want to build the images yourself, clone the wger repository and follow
-the instructions for the devel image in the `extras/docker` folder.
-
-# Development environments
-
-Note: the docker images assume a wger user id of 1000.  Since we mount the code
-and write from the image into your code repository, you may run into permission errors
-if your user id is not 1000. We don't have a good solution for such situation yet.
-Check your user id with `echo $UID`.
-
-1. Clone https://github.com/wger-project/wger to a folder of your choice.
-2. `cd` into the environment of your choice (dev or dev-postgres)
-3. Copy `.env.example` to `.env` and set the path to correspond to the location where
-   you have checked out the wger server git repo.
-
-
-```shell
-docker compose up
-docker compose exec web /bin/bash
-cp extras/docker/production/settings.py .
-
-wger bootstrap                     # this creates initial db tables, runs yarn install, yarn build:css:sass, etc
-python3 manage.py migrate          # safe to ignore: Your models in app(s): 'exercises', 'nutrition' have changes that are not yet reflected in a migration, and so won't be applied.
-python3 manage.py sync-exercises   # pull exercises from wger.de (or other source you have defined)
-wger load-online-fixtures          # pull nutrition information
-
-# if you use sqlite, at this time you can make a backup if you want
-# such that if you mess something up, you don't have to start from scratch
-cp /home/wger/db/database.sqlite /home/wger/db/database.sqlite.orig
-
-# finally, this is important, start the actual server!
-python3 manage.py runserver 0.0.0.0:8000
-```
-
-You can now login on http://localhost:8000 - there is one user account: admin, with password adminadmin
-The server should restart automatically when you change code, etc.
-
-If you use `dev` you can use the `sqlite3` program to execute queries against the database file.
-For `postgres-sqlite` you can use `pgcli -h localhost -p 5432 -u wger` on your host, with password `wger`
+* prod: <https://wger.readthedocs.io/en/latest/production/docker.html>
+* dev: <https://wger.readthedocs.io/en/latest/development/docker.html>
 
 ## Contact