add act-runners/kubectl-mini image and gitea workflow

.gitea/workflows/act-runner-kubectl-mini.yml

@@ -0,0 +1,26 @@
+on: 
+  push:
+    branches:
+      - main
+  schedule:
+    - cron: '@weekly' # once per week
+
+jobs:
+  build-container-image:
+    runs-on: ["oci-image-builder", "amd64"]
+ 
+    steps:
+ 
+      - name: Checkout code
+        uses: actions/checkout@v2
+   
+      - name: Build and push Docker Image
+        uses: ./.gitea/limbo_actions/buildkit-build-push
+        with:
+          registry_addr: ${{ vars.OCI_LIMBO_REGISTRY_ADDRESS }}
+          registry_username: ${{ secrets.OCI_LIMBO_REGISTRY_USERNAME }}
+          registry_password: ${{ secrets.OCI_LIMBO_REGISTRY_PASSWORD }}
+          buildkit_addr: ${{ vars.BUILDKIT_ADDRESS }}
+          context: ${{gitea.workspace}}/act-runners/kubectl-mini
+          dockerfile: ${{gitea.workspace}}/act-runners/kubectl-mini
+          tags: oci.limbosolutions.com/public/act-runners/kubectl-mini:3.0.2

act-runners/kubectl-mini/Dockerfile

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+ARG ACT_RUNNER_VERSION=3.0.2
+
+
+# STAGE 1 — BUILDER 
+FROM alpine:3.20 AS builder
+ARG ACT_RUNNER_VERSION
+RUN apk add --no-cache curl unzip
+
+# Kubectl 
+RUN curl -Lo /tmp/kubectl \
+    "https://storage.googleapis.com/kubernetes-release/release/$(curl -s https://storage.googleapis.com/kubernetes-release/release/stable.txt)/bin/linux/amd64/kubectl" \
+ && chmod +x /tmp/kubectl
+
+ARG ACT_RUNNER_VERSION
+# ACT Runner
+RUN curl -sSLO "https://dl.gitea.com/gitea-runner/${ACT_RUNNER_VERSION}/gitea-runner-${ACT_RUNNER_VERSION}-linux-amd64" \
+ && curl -sSLO "https://dl.gitea.com/gitea-runner/${ACT_RUNNER_VERSION}/gitea-runner-${ACT_RUNNER_VERSION}-linux-amd64.sha256" \
+ && sed -i '/found/d' "gitea-runner-${ACT_RUNNER_VERSION}-linux-amd64.sha256" \
+ && sha256sum -c "gitea-runner-${ACT_RUNNER_VERSION}-linux-amd64.sha256" \
+ && install -m 0755 "gitea-runner-${ACT_RUNNER_VERSION}-linux-amd64" /tmp/gitea-runner
+
+
+# --------------------------------------------------------------------
+# STAGE 2 — FINAL IMAGE
+# --------------------------------------------------------------------
+FROM alpine:3.20
+
+
+COPY --from=builder /tmp/kubectl /usr/local/bin/kubectl
+COPY --from=builder /tmp/gitea-runner /usr/local/bin/act_runner
+
+
+RUN addgroup -g 1000 kube \
+ && adduser -D -u 1000 -G kube -s /bin/ash kube \
+ && mkdir -p /home/kube \
+ && chown -R kube:kube /home/kube
+
+USER kube
+WORKDIR /home/kube
+
+ENTRYPOINT ["/usr/local/bin/act_runner"]