Error: Container action is only supported on Linux

[adamjsturge]

Describe the bug
Unable to run shoutrrr on macos pipelines

To Reproduce
Steps to reproduce the behavior:

name: Test Action
on:
  pull_request:
  workflow_dispatch:

jobs:
  testjob:
    timeout-minutes: 60
    runs-on: macos-latest
    steps:
      - uses: actions/checkout@v4
      - name: Notify on Fail
        uses: containrrr/shoutrrr-action@v1
        with:
          url: ${{ secrets.SHOUTRRR_URL }}
          title: "Test Action"
          message: "This action could work"

Expected behavior
Would like it not to crash and work on macos

[arnested]

Oh! Container actions are only supported on Linux. I did not know that.

Getting the action to run on macOS would really be nice.

But this would require a quite different approach, then. Maybe a Node.js app downloading and executing the right Shoutrrr binary.

Perhaps someone implemented this approach somewhere else so we can be inspired or reuse parts.

[arnested]

Or just a composite action, downloading the tool. Probably a lot simpler.

[arnested]

But upstream releases (https://github.com/containrrr/shoutrrr/releases/tag/v0.8.0) lack a macOS build.

And we want to avoid building the tool during the run of the action.

Hmmm... Not sure what the best approach forward is...

Until we figure out what to do I'll stick a notice in the readme.