added inital github workflows

.github/workflows/common.yaml

@@ -0,0 +1,13 @@
+on:
+  workflow_call:
+
+jobs:
+  setup:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    steps:
+      - uses: docker-practice/actions-setup-docker@master
+      - uses: earthly/actions-setup@v1
+        with:
+          version: "latest"

.github/workflows/images.yaml

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+on:
+  workflow_call:
+    inputs:
+      k3s-version:
+        type: string
+        required: true
+      base-image:
+        type: string
+        required: true
+      push:
+        type: boolean
+        default: false
+        required: false
+        description: If true the images will be published to the registry and signed with cosign
+    secrets:
+      QUAY_PASSWORD:
+        required: true
+      QUAY_USERNAME:
+        required: true
+
+jobs:
+  images:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    steps:
+      - run: echo ${{ secrets.QUAY_PASSWORD }} | docker login -u ${{ secrets.QUAY_USERNAME }} --password-stdin quay.io
+        if: ${{ inputs.push }}
+      - run: earthly --ci --push=${{ inputs.push }} +docker --K3S_VERSION=${{ inputs.k3s-version }} --BASE_IMAGE=${{ inputs.base-image }}
+        with:
+          k3s-version: ${{ inputs.k3s-version }}
+          base-image: ${{ inputs.base-image }}
+      - run: earthly --ci +cosign --K3S_VERSION=${{ inputs.k3s-version }} --BASE_IMAGE=${{ inputs.base-image }}
+        if: ${{ inputs.push }}
+        with:
+          k3s-version: ${{ inputs.k3s-version }}
+          base-image: ${{ inputs.base-image }}

.github/workflows/publish.yaml

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+name: Publish
+
+on:
+  push:
+    tags:
+      - v*
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    strategy:
+      matrix:
+        base-image:
+          - quay.io/c3os-io/core-opensuse:latest
+          - quay.io/c3os-io/core-alpine:latest
+        k3s-version:
+          - v1.24.3+k3s1
+          - v1.23.9+k3s1
+          - v1.22.11+k3s2
+          - v1.21.14+k3s1
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ./.github/workflows/common.yaml
+      - uses: ./.github/workflows/images.yaml
+        with:
+          push: true
+          k3s-version: ${{ matrix.k3s-version }}
+          base-image: ${{ matrix.base-image }}

.github/workflows/pull_request.yaml

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+name: Pull Request
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: ./.github/workflows/common.yaml
+      - run: earthly --ci +lint
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    strategy:
+      matrix:
+        base-image:
+          - quay.io/c3os-io/core-opensuse:latest
+          - quay.io/c3os-io/core-alpine:latest
+        k3s-version:
+          - v1.24.3+k3s1
+          - v1.23.9+k3s1
+          - v1.22.11+k3s2
+          - v1.21.14+k3s1
+    steps:
+      - uses: ./.github/workflows/common.yaml
+      - uses: ./.github/workflows/images.yaml
+        with:
+          push: false
+          k3s-version: ${{ matrix.k3s-version }}
+          base-image: ${{ matrix.base-image }}