wait-for-it VS podman

python:3.10.5-slim-buster is a Debian GNU/Linux 10 (buster). Follow the Debian package link given by wait-for-it, we'll eventually find this link https://packages.debian.org/source/oldoldstable/wait-for-it, I downloaded the wait-for-it_0.0~git20160501.orig.tar.gz file and extracted wait-for-it.sh out to the project root directory where setup.py, app.py, .dockerignore, Dockerfile and docker-compose.yml are.

Using countless variations of the wait for it script (they all get ignored (yes i did chmod +x)). another candidate or using it like this

I haven’t done it, but maybe you can use something like this in an ExecStartPre on the nginx systemd service, or if that doesnt work, as a separate service that nginx’s systemd service starts after

I’ve used wait-for-it with success.

https://github.com/vishnubob/wait-for-it

When start to build docker-compose, it tried to connect db first, but it seems that db didn't become reachable yet. Even added wait-for-it doesn't work.

executes 'wait-for-it.sh' to wait on the availability of port 3306 before running 'air'--using wait-for-it.sh is just an example and this shell script has to be installed as part of the Dockerfilehttps://github.com/vishnubob/wait-for-it

Yeah dockerize seems to achieve your second suggestion, someone also suggested my wait-for-it https://github.com/vishnubob/wait-for-it which seems to be similar but a bit more popular and also used in the official documentation https://docs.docker.com/compose/startup-order/ I think I'll go this route, the first option doesn't quite match what I need as all compose aren't necessarily to be started simultaneously.

Can't you use something like this? : https://github.com/vishnubob/wait-for-it . Essentially wait until you can ping redis port and then run wsgi runserver for django. However, are you sure that you can resolve redis host on swarm? Redis starts so fast that it makes me think it might be something else.

Example of why: https://github.com/containers/podman/issues/5102#issuecommen...

Podman

Even though we will focus on Docker for this article, I wanted to mention that there are more container creation and management tools such as Podman, Rkt, and so on.

By using containerization, the application will always have the same configuration that is used in the development environment and production environment. There is no more "It works on my machine". Some examples of containerization technologies are Docker and Podman.

Podman Documentation. Podman is a daemonless container engine for developing, managing, and running OCI Containers on your Linux System.

AFAIK podman either already supports pods in quadlet container files, or will in the near future. https://github.com/containers/podman/pull/20762

Podman as a devcontainers engine doesn't currently work if you use devcontainer features [1] or (and this sounds like you're issue) if you use WSL2.

I haven't submitted the WSL2 issue to the Podman team yet. If you get to it before I do, can you like it here?

https://github.com/containers/podman/issues/18691#issuecomme...

You can also use their Oracle Linux Docker images with the database preinstalled using either Podman or Docker. Just make absolutely sure you are downloading something you are licensed to use, because it seems really easy to accidentally infringe copyright via this method.

It's an open source project. https://github.com/containers/podman and https://podman.io - go there, get engaged, see what's going on and most important become part of the community and contribute!