First hand experience to implement this feature can be found at https://codeberg.org/forgejo/forgejo/issues/9406. In a nutshell it is a service container in the CI that randomly uses massive amounts of memory (>50GB RSS) but normally less than 100MB.
---
See also the [matching documentation pull request](https://codeberg.org/forgejo/docs/pulls/1539).
---
It is already possible to limit the memory used by all containers in the config file:
```yaml
container:
options: --memory 200M
```
This limit can be further reduced (but not increased) by the same option in a job:
```yaml
jobs:
job:
runs-on: docker
container:
image: code.forgejo.org/oci/node:20-bookworm
options: --memory 200M
steps:
- run: echo OK
```
or a service container:
```yaml
job:
my-job:
runs-on: docker
services:
pgsql:
image: postgres:15
options: --memory 1G
```
Refs https://docs.docker.com/engine/containers/resource_constraints/#limit-a-containers-access-to-memory
<!--start release-notes-assistant-->
<!--URL:https://code.forgejo.org/forgejo/runner-->
- features
- [PR](https://code.forgejo.org/forgejo/runner/pulls/1079): <!--number 1079 --><!--line 0 --><!--description ZmVhdDogYWxsb3cgLS1tZW1vcnkgaW4gd29ya2Zsb3cgY29udGFpbmVyIG9wdGlvbnM=-->feat: allow --memory in workflow container options<!--description-->
<!--end release-notes-assistant-->
Reviewed-on: https://code.forgejo.org/forgejo/runner/pulls/1079
Reviewed-by: Michael Kriese <michael.kriese@gmx.de>
Reviewed-by: Mathieu Fenniak <mfenniak@noreply.code.forgejo.org>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>
66a7e82c43