Fix CI: use self-hosted runner, simplified workflow

.gitea/workflows/deploy.yaml

@@ -6,30 +6,32 @@ on:
 
 jobs:
   deploy:
-    runs-on: ubuntu-latest
+    runs-on: self-hosted
     steps:
       - uses: actions/checkout@v4
 
-      - name: Install kubectl
-        run: |
-          curl -sLO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
-          chmod +x kubectl
-          mv kubectl /usr/local/bin/
-
       - name: Setup kubeconfig
         run: |
           mkdir -p ~/.kube
-          echo "$KUBECONFIG_DATA" | base64 -d > ~/.kube/config
+          echo "${{ secrets.KUBECONFIG }}" | base64 -d > ~/.kube/config
-        env:
+          chmod 600 ~/.kube/config
-          KUBECONFIG_DATA: ${{ secrets.KUBECONFIG }}
+
+      - name: Install kubectl
+        run: |
+          if ! command -v kubectl &>/dev/null; then
+            curl -sLO "https://dl.k8s.io/release/$(curl -sL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
+            sudo install kubectl /usr/local/bin/kubectl
+          fi
+          kubectl version --client
 
       - name: Generate and apply CoreDNS configmap
         run: |
           chmod +x generate.sh
-          ./generate.sh records.yaml > coredns-custom.yaml
+          ./generate.sh records.yaml > /tmp/coredns-custom.yaml
           echo "--- Generated configmap ---"
-          cat coredns-custom.yaml
+          cat /tmp/coredns-custom.yaml
           echo "--- Applying ---"
-          kubectl apply -f coredns-custom.yaml
+          kubectl apply -f /tmp/coredns-custom.yaml
           kubectl rollout restart deployment/coredns -n kube-system
           kubectl rollout status deployment/coredns -n kube-system --timeout=60s
+          echo "DNS records applied successfully"