DOCKER_stuff.md

Docker Stuff

Some useful docker things to remember...

Nginx-Proxy

Taken from https://blog.ssdnodes.com/blog/host-multiple-websites-docker-nginx/
Create a Docker network

docker network create nginx-proxy

Install nginx-proxy container

docker run -d -p 80:80 --name nginx-proxy --net nginx-proxy -v /var/run/docker.sock:/tmp/docker.sock jwilder/nginx-proxy

As an example: start a WordPress container with a basic configuration

docker run -d --name blog --expose 80 --net nginx-proxy -e VIRTUAL_HOST=blog.DOMAIN.TLD wordpress

More info on https://github.com/nginx-proxy/nginx-proxy
For HTTPS check https://github.com/nginx-proxy/docker-letsencrypt-nginx-proxy-companion

Clean up and reclaim disk space used by docker

https://domm.plix.at/perl/2020_06_docker_prune_volumes_by_label.html

Create new PostgreSQL container

docker run --name pgdb -e POSTGRES_PASSWORD=password -e POSTGRES_USER=user -e POSTGRES_DB=dbname -p 0.0.0.0:18731:5432 -d -v `pwd`/bot_pg:/var/lib/postgresql/data postgres

This will make your Postgres DB stick out in the open so use a strong password and change port! In this example I've used 18731 port. Feel free to pick any other non-obvious port. As for getting strong password - use https://gerbill.github.io/sha/ and take a good portion of a generated hash there. 30 symbols should be enough.

Create new Redis container

docker run -d -p 26379:6379 -v ~/my-redis:/data --name my-redis redis --requirepass 480f69c349f65332f47076099967c --appendonly yes

This will create Redis container named my-redis and with a volume with persistance AOF in your home directory: /home/yourusername/my-redis
Create strong password at https://gerbill.github.io/sha/ as your new my-redis container will be listening to outside connections on port 26379 (change this to less obvious number in the command above if you like)