forked from vieter-v/vieter
57 lines
2.1 KiB
Markdown
57 lines
2.1 KiB
Markdown
# Builder
|
|
|
|
Vieter supports a basic build system that allows you to build the packages
|
|
defined using the Git repositories API by running `vieter build`. For
|
|
configuration, see [here](/configuration#builder).
|
|
|
|
## How it works
|
|
|
|
The build system works in two stages. First it pulls down the
|
|
`archlinux:latest` image from Docker Hub, runs `pacman -Syu` & configures a
|
|
non-root build user. It then creates a new Docker image from this container.
|
|
This is to prevent each build having to fully update the container's
|
|
repositories. After the image has been created, each repository returned by
|
|
`/api/repos` is built sequentially by starting up a new container with the
|
|
previously created image as a base. Each container goes through the following steps:
|
|
|
|
1. The repository is cloned
|
|
2. `makepkg --nobuild --syncdeps --needed --noconfirm` is ran to update the `pkgver` variable inside
|
|
the `PKGBUILD` file
|
|
3. A HEAD request is sent to the Vieter server to check whether the specific
|
|
version of the package is already present. If it is, the container exits.
|
|
4. `makepkg` is ran with `MAKEFLAGS="-j\$(nproc)`
|
|
5. Each produced package archive is uploaded to the Vieter instance's
|
|
repository, as defined in the API for that specific Git repo.
|
|
|
|
## Cron image
|
|
|
|
The Vieter Docker image contains crond & a cron config that runs `vieter build`
|
|
every night at 3AM. This value is currently hardcoded, but I wish to change
|
|
that down the line (work is in progress). There's also some other caveats you
|
|
should be aware of, namely that the image should be run as root & that the
|
|
healthcheck will always fail, so you might have to disable it. This boils down
|
|
to the following docker-compose file:
|
|
|
|
```yaml
|
|
version: '3'
|
|
|
|
services:
|
|
cron:
|
|
image: 'chewingbever/vieter:dev'
|
|
command: crond -f
|
|
user: root
|
|
|
|
healthcheck:
|
|
disable: true
|
|
|
|
environment:
|
|
- 'VIETER_API_KEY=some-key'
|
|
- 'VIETER_ADDRESS=https://example.com'
|
|
volumes:
|
|
- '/var/run/docker.sock:/var/run/docker.sock'
|
|
```
|
|
|
|
Important to note is that the container also requires the host's Docker socket
|
|
to be mounted as this is how it spawns the necessary containers, as well as a
|
|
change to the container's command.
|