DazzLog

S6-overlay is a container-focused process manager that offers end-to-end management of the container’s lifecycle, from initialization to graceful shutdown.

To make use of s6-overlay we need to add the binaries to our container by adding, extracting and then moving them to the directory where they are expected.

ADD https://github.com/just-containers/s6-overlay/releases/download/3.2.0.0/s6-overlay-noarch.tar.xz /tmp  
ADD https://github.com/just-containers/s6-overlay/releases/download/3.2.0.0/s6-overlay-x86_64.tar.xz /tmp

Update dependencies

When adding the s6-overlay sources to in a Dockerfile we want to make sure that we get notified when a new version is available, so we can always be up-to-date with all our libraries. This can be achieved by adding a section to our Renovate or Dependabot config, a rule to match

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I have developed a Symfony Web-Application, and it runs locally in a dockerized environment with docker-compose. This app is going to be deployed to production as a docker container. In production the handling of environment variables and how they are passed to the container during development is different.

12 Factor App

A few points from the 12factor methodology:

• III. Config: Store config in the environment since env vars are easy to change between deploys without changing any code
• X. Dev/prod parity: Keep development, staging, and production as similar as possible

I was searching for options how to handle the differences how environment variables are passed and I found there are at least

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When you host your project code on GitHub and want to release it as a docker image for deployment or just publish it, the way to go are GitHub actions. Actions are basically hooks that can start CI/DC workflows on repository events.

GitHub actions can be used to build and push images to GitHub’s Container Registry which are reachable under https://ghcr.io which is part of the package registry. The package registry is not only for docker images, it can also host quite a few other kinds of packages. In this case we’ll focus on docker images.

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I started this blog in March 2013 when I was working for ImagineEasy when I had a few ideas to write down on how I’d work with Doctrine Repositories. I still like the idea, but I’d probably do it a bit different today. The blog and also how I’d work with doctrine.

At the time Jekyll was the way to handle a static file blog. Since then, again, a few things have changed. GitHub is now owned by Microsoft and there are GitHub Actions.

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Introduction

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Visit the Hugo website!

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