feat: ISO build action (blue-build#133)

* feat: base iso release workflow
* does not produce a functional ISO yet
needs boot_menu

* chore(dev): start iso workflow on iso push

* fix: rename release-iso to release-please

* refactor: use github-cli to create release

* fix: remove job dependencies

* chore: basic boot menu

* fix: add permission to create release

* fix: delegate tag for auto-iso releases,..
delete old version when rerunning

* fix: multiline string for multine cmds

* fix: specify gh repo in old release delete

* fix: only create release if doesn't exist

* fix: boot menu double user field

* fix: clobber iso

* chore: neutral defaults for boot menu

* feat: run iso when iso-related changes pushed

* docs: README section for ISO

.github/workflows/release-iso.yml

@@ -0,0 +1,46 @@
+on:
+  push:
+    paths:
+      - 'boot_menu.yml'
+      - '.github/workflows/release-iso.yml'
+  workflow_dispatch:
+
+name: release-iso
+jobs:
+  release-iso:
+    name: Generate and Release ISOs
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    container: 
+      image: fedora:38
+      options: --privileged
+    steps:
+      - uses: actions/checkout@v3
+      - name: Generate ISO  
+        uses: ublue-os/isogenerator@main
+        id: isogenerator
+        with:
+          image-name: ${{ github.event.repository.name }}
+          installer-repo: releases
+          installer-major-version: 38
+          boot-menu-path: boot_menu.yml
+      - name: install github CLI
+        run: |
+          sudo dnf install 'dnf-command(config-manager)' -y
+          sudo dnf config-manager --add-repo https://cli.github.com/packages/rpm/gh-cli.repo
+          sudo dnf install gh -y
+      - name: Upload ISO
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run: |
+          if gh release list -R ${{ github.repository_owner }}/${{ github.event.repository.name }} | grep "auto-iso"; then
+            gh release upload auto-iso ${{ steps.isogenerator.outputs.iso-path }} -R ${{ github.repository_owner }}/${{ github.event.repository.name }} --clobber
+          else
+            gh release create auto-iso ${{ steps.isogenerator.outputs.iso-path }} -t ISO -n "This is an automatically generated ISO release." -R ${{ github.repository_owner }}/${{ github.event.repository.name }}
+          fi
+      - name: Upload SHA256SUM
+        env:
+          GITHUB_TOKEN: ${{ github.token }}
+        run:
+          gh release upload auto-iso ${{ steps.isogenerator.outputs.sha256sum-path }} -R ${{ github.repository_owner }}/${{ github.event.repository.name }} --clobber

README.md

@@ -116,6 +116,16 @@ This repository by default also supports signing
 
 The `latest` tag will automatically point to the latest build. That build will still always use the Fedora version specified in `recipe.yml`, so you won't get accidentally updated to the next major version.
 
+## ISO
+
+This template includes a simple Github Action to build and release an ISO of your image. 
+
+To run the action, simply edit the `boot_menu.yml` by changing all the references to `ublue-os/startingpoint` to your repository. This should trigger the action automatically.
+
+The Action uses [isogenerator](https://github.com/ublue-os/isogenerator) and works in a similar manner to the official Universal Blue ISO. If you have any issues, you should first check [the documentation page on installation](https://universal-blue.org/installation/). The ISO is a netinstaller and should always pull the latest version of your image.
+
+Note that this release-iso action is not a replacement for a full-blown release automation like [release-please](https://github.com/googleapis/release-please).
+
 ## Just
 
 The `just` task runner is included in `ublue-os/main`-derived images, and we have provided several template commands which help you perform further customization after first boot.

boot_menu.yml

@@ -0,0 +1,5 @@
+ublue_variants:
+  - label: ublue-os/startingpoint
+    ks: /kickstart/ublue-os.ks
+    flavors:
+      - label: startingpoint