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https://github.com/georglauterbach/dev-container-base

Development Container Base Image for Common Tasks
https://github.com/georglauterbach/dev-container-base

containers dev-container development-container

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Development Container Base Image for Common Tasks

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README

        

= Custom Development Container Base Image
:toc:

== About

A custom https://containers.dev/[Development Container] base image packed with as many as necessary and as few as possible configurations and applications to make development a breeze. This image is built for `amd64` and `arm64`. Consult link:./Dockerfile[`Dockerfile`] for the complete set of installation steps.

This container image partially builds on https://github.com/georglauterbach/hermes[_Hermes_] to install sensible defaults for the console and useful additional programs. Consult the documentation of _Hermes_ if you'd like to further customize the experience.

Additonally, we configure common directories (like `${HOME}/.cache`) with the correct permissions. We also set up `doas` so that you can simply run `sudo` inside the container without the need to enter a password.

You can use the environment variable `DEV_CONTAINER_BASE` to check whether you are using this image as a base (and hence, whether you are inside a container). This variable, if set, contains the version of the base image and the version control system revision, separated by a `#`.

We do not set a custom `ENTRYPOINT` with this image because the entrypoint is overwritten by Development Containers anyway, and we want to make the additional setup optional.

== Optional Additional Setup

=== Proper Caching

To properly persist data that should be cached, you need to provide volumes in `devcontainer.json` for the following directories:

[source,jsonc]
----
{
// Persist the VS Code extension cache
"source": "-cache-vscode_extensions",
"target": "/home/ubuntu/.vscode-server/extensions",
"type": "volume"
},
{
// Persist the `${HOME}/.cache` directory
"source": "-cache-home_cache",
"target": "/home/ubuntu/.cache",
"type": "volume"
}
----

[IMPORTANT]
====
While this image performs permission adjustments for `/home/ubuntu/.vscode-server`, you should mount the volume for caching extensions to `/home/ubuntu/.vscode-server/extensions`. Otherwise, the Development Container settings are https://news.ycombinator.com/item?id=23113314[cached] as well, which may leed to your settings not being updated.
====

=== Locale Setup

When building on top of this image, you can call `sudo update_locales.sh ` to set a new locale. The default is `en_US.UTF-8`.