GitHub: Rework release action.

.github/workflows/releases.yaml

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+name: Releases
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      # Remove when ready.
+      - liljx
+    paths:
+      - "*/v*.*.*/release.yaml"
+
+jobs:
+  get-releases:
+    name: Get releases
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get releases
+        id: get-releases
+        # TODO: Replace specific providers in glob with * as soon as it matches all of them anyway.
+        run: echo releases="$(jq --null-input --args '$ARGS.positional' --compact-output -- {azure,capa}/v*.*.*)" >> "${GITHUB_OUTPUT}"
+
+    outputs:
+      releases: ${{ steps.get-releases.outputs.releases }}
+
+  create-release:
+    name: Create release
+    runs-on: ubuntu-latest
+    needs: get-releases
+
+    strategy:
+      matrix:
+        release: ${{ fromJSON(needs.get-releases.outputs.releases) }}
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Get provider & version
+        id: get-provider-version
+        env:
+          release: ${{ matrix.release }}
+        run: |
+          # Get provider & version.
+          provider="${release%/v*.*.*}"
+          version="${release#${provider}/}"
+
+          # Map provider.
+          case "${provider}" in
+            capa)
+              provider="aws"
+              ;;
+          esac
+
+          # Store provider & version.
+          echo provider="${provider}" >> "${GITHUB_OUTPUT}"
+          echo version="${version}" >> "${GITHUB_OUTPUT}"
+
+      - name: Get release
+        id: get-release
+        env:
+          GH_TOKEN: ${{ secrets.TAYLORBOT_GITHUB_ACTION }}
+          provider: ${{ steps.get-provider-version.outputs.provider }}
+          version: ${{ steps.get-provider-version.outputs.version }}
+        run: |
+          # Define tag.
+          tag="${provider}/${version}"
+
+          # Check release.
+          [ "$(gh release view "${tag}" --json id)" ] && exists=true || exists=false
+
+          # Store tag & exists.
+          echo tag="${tag}" >> "${GITHUB_OUTPUT}"
+          echo exists="${exists}" >> "${GITHUB_OUTPUT}"
+
+      - name: Create release
+        if: ${{ ! fromJSON(steps.get-release.outputs.exists) }}
+        env:
+          GH_TOKEN: ${{ secrets.TAYLORBOT_GITHUB_ACTION }}
+          release: ${{ matrix.release }}
+          provider: ${{ steps.get-provider-version.outputs.provider }}
+          version: ${{ steps.get-provider-version.outputs.version }}
+          tag: ${{ steps.get-release.outputs.tag }}
+        run: |
+          # Define title, notes & files.
+          title="Workload cluster release ${version} for ${provider}"
+          notes="This release was automatically created by GitHub Actions."
+          files=("${release}/release.yaml")
+
+          # Determine pre-release.
+          [[ "${version}" == v*.*.*-* ]] && prerelease="--prerelease" || prerelease=""
+
+          # Create release.
+          echo gh release create --target "${GITHUB_REF_NAME}" "${tag}" --title "${title}" --notes "${notes}" ${files[@]} ${prerelease}

capa/v28.0.1-alpha1/README.md

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+# :zap: Giant Swarm Release v28.0.0 for CAPA :zap:
+
+## Changes compared to v27.0.0
+
+- Kubernetes version change from 1.27.14 to 1.28.11
+- cloud-provider-aws (formerly aws-cloud-controller-manager-app) from 1.27.7-gs1 to 1.28.6-gs1
+- cluster-autoscaler from 1.27.3-gs9 to 1.28.5-gs1

capa/v28.0.1-alpha1/announcement.md

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+**Workload cluster release v28.0.0 for CAPA is available**. This release upgrades Kubernetes version to v1.28.
+
+Further details can be found in the [release notes](https://docs.giantswarm.io/changes/workload-cluster-releases-capa/releases/aws-28.0.0/).

capa/v28.0.1-alpha1/kustomization.yaml

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+resources:
+- release.yaml

capa/v28.0.1-alpha1/release.yaml

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+apiVersion: release.giantswarm.io/v1alpha1
+kind: Release
+metadata:
+  name: aws-28.0.0
+spec:
+  apps:
+  - name: aws-ebs-csi-driver
+    version: 2.30.1
+    dependsOn:
+    - cloud-provider-aws
+  - name: aws-ebs-csi-driver-servicemonitors
+    version: 0.1.0
+    dependsOn:
+    - cert-manager
+  - name: aws-pod-identity-webhook
+    version: 1.16.0
+    dependsOn:
+    - cert-manager
+  - name: capi-node-labeler
+    version: 0.5.0
+  - name: cert-exporter
+    version: 2.9.0
+    dependsOn:
+    - kyverno
+  - name: cert-manager
+    version: 3.7.6
+    dependsOn:
+    - prometheus-operator-crd
+  - name: chart-operator-extensions
+    version: 1.1.2
+    dependsOn:
+    - prometheus-operator-crd
+  - name: cilium
+    version: 0.24.0
+  - name: cilium-crossplane-resources
+    version: 0.1.0
+  - name: cilium-servicemonitors
+    version: 0.1.2
+    dependsOn:
+    - prometheus-operator-crd
+  - name: cloud-provider-aws
+    version: 1.28.6-gs1
+    dependsOn:
+    - vertical-pod-autoscaler-crd
+  - name: cluster-autoscaler
+    version: 1.28.5-gs1
+    dependsOn:
+    - kyverno
+  - name: coredns
+    version: 1.21.0
+    dependsOn:
+    - cilium
+  - name: etcd-k8s-res-count-exporter
+    version: 1.10.0
+    dependsOn:
+    - kyverno
+  - name: external-dns
+    version: 3.1.0
+    dependsOn:
+    - prometheus-operator-crd
+  - name: irsa-servicemonitors
+    version: 0.0.1
+    dependsOn:
+    - cert-manager
+  - name: k8s-audit-metrics
+    version: 0.9.0
+    dependsOn:
+    - kyverno
+  - name: k8s-dns-node-cache
+    version: 2.6.2
+    dependsOn:
+    - kyverno
+  - name: metrics-server
+    version: 2.4.2
+    dependsOn:
+    - kyverno
+  - name: net-exporter
+    version: 1.19.0
+    dependsOn:
+    - prometheus-operator-crd
+  - name: network-policies
+    version: 0.1.1
+    catalog: cluster
+    dependsOn:
+    - cilium
+  - name: node-exporter
+    version: 1.19.0
+    dependsOn:
+    - kyverno
+  - name: observability-bundle
+    version: 1.3.4
+    dependsOn:
+    - coredns
+  - name: prometheus-blackbox-exporter
+    version: 0.4.1
+    dependsOn:
+    - prometheus-operator-crd
+  - name: security-bundle
+    version: 1.7.0
+    catalog: giantswarm
+    dependsOn:
+    - prometheus-operator-crd
+  - name: teleport-kube-agent
+    version: 0.9.0
+  - name: vertical-pod-autoscaler
+    version: 5.2.2
+    dependsOn:
+    - prometheus-operator-crd
+  - name: vertical-pod-autoscaler-crd
+    version: 3.1.0
+  components:
+  - name: cluster-aws
+    catalog: cluster
+    version: 1.0.1
+  - name: flatcar
+    version: 3815.2.2
+  - name: flatcar-variant
+    version: 1.0.0
+  - name: kubernetes
+    version: 1.28.11
+  date: "2024-07-10T09:00:00Z"
+  state: active