docker-gen VS Docker Compose

Yeah, I usually do if I pass URLs to container. But again, the nginx config is completely auto-generated by docker-gen. Not sure why they don't use the container name, maybe duplicate container names? (if that's possible)

I've not got around to it, but I've always fancied creating a nice landing page that automatically updates as services come up/down, using the system jwilder created to make nginx-proxy, docker-gen. Could be a fun little project, anyway!

https://github.com/nginx-proxy/acme-companion https://github.com/nginx-proxy/docker-gen https://github.com/projectdiscovery/dnsx https://github.com/projectdiscovery/httpx https://github.com/projectdiscovery/mapcidr https://github.com/debauchee/barrier https://github.com/stedolan/jq https://github.com/ddosify/ddosify https://github.com/kubernetes-sigs/kind https://github.com/mailcow/mailcow-dockerized https://github.com/motiv-labs/janus

Then to make deployment super easy we're using nginx-proxy which uses docker-gen (and the acme-companion for automatic SSL cert generation) to automatically re-configure an nginx reverse proxy to point to your containers.

I've now got a setup using docker where the reverse proxy configuration is within the container's configuration (using nginx-proxy, which uses docker-gen). That way I just set the host, path, etc. in my container config, deploy, and the nginx servers are re-configured accordingly. No need to worry about ports and IPs then either.

I use an automated nginx reverse proxy. What this does is setup an nginx reverse proxy which uses docker-gen (follow the advice of setting it up separately). docker-gen listens for docker events such as a container being run, inspects that container for the details it needs (port, host, etc.) then configures the nginx accordingly.

“Compose simplifies the control of your entire application stack, making it easy to manage services, networks, and volumes in a single, comprehensible YAML configuration file. Then, with a single command, you create and start all the services from your configuration file.” - Docker documentation

curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh # Install docker compose sudo curl -L "https://github.com/docker/compose/releases/download/1.29.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose # Apply executable permissions to the binary sudo chmod +x /usr/local/bin/docker-compose # Run Project docker-compose up -d

Docker,

This foundation now opens the door to even more powerful concepts. You can explore more advanced concepts such as container networking, streamlining the management of complex applications with Docker Compose, and how to make your application data persistent using volumes.

In many projects that are containerized, especially in cases where development is also done locally with docker-compose, teams often have two Dockerfiles, 1 for Development, the other for Production. If you happen to have multiple environments like pre-prod, staging and so on, some teams could have different Dockerfiles for these environments.

sudo curl -L "https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose

You can also use Docker Compose to deploy the cluster, without having to write all the previous commands.

[ec2-user]$ sudo yum update -y [ec2-user]$ sudo yum install -y docker [ec2-user]$ sudo service docker start [ec2-user]$ sudo curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose [ec2-user]$ sudo chmod +x /usr/local/bin/docker-compose [ec2-user]$ docker --version Docker version 20.10.23, build 7155243 [ec2-user]$ docker-compose --version Docker Compose version v2.18.1

Docker Compose Documentation