ci: run build-push on host instead of container

.gitea/workflows/ci.yml

@@ -257,21 +257,29 @@ jobs:
     runs-on: ubuntu-latest
     needs: [test, security-tests]
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
-    container:
-      image: quay.io/podman/stable:latest
 
     steps:
       - name: Checkout
         run: |
-          dnf install -yq git >/dev/null 2>&1
           git clone --depth 1 --branch "${GITHUB_REF_NAME}" \
             "https://oauth2:${{ github.token }}@${GITHUB_SERVER_URL#https://}/${GITHUB_REPOSITORY}.git" .
 
       - name: Build image
         run: |
+          # Use docker or podman, whichever is available
+          if command -v docker >/dev/null 2>&1; then
+            BUILD_CMD="docker"
+          elif command -v podman >/dev/null 2>&1; then
+            BUILD_CMD="podman"
+          else
+            echo "::error::Neither docker nor podman found"
+            exit 1
+          fi
+          echo "Using: $BUILD_CMD"
+
           SHORT_SHA=$(echo "${{ github.sha }}" | cut -c1-7)
-          podman build -t flaskpaste:latest -t flaskpaste:sha-${SHORT_SHA} .
-          podman images | grep flaskpaste
+          $BUILD_CMD build -t flaskpaste:latest -t flaskpaste:sha-${SHORT_SHA} .
+          $BUILD_CMD images | grep flaskpaste
 
       - name: Push to Harbor
         env:
@@ -285,13 +293,20 @@ jobs:
             exit 0
           fi
 
+          # Use docker or podman
+          if command -v docker >/dev/null 2>&1; then
+            BUILD_CMD="docker"
+          else
+            BUILD_CMD="podman"
+          fi
+
           SHORT_SHA=$(echo "${{ github.sha }}" | cut -c1-7)
 
-          podman login "${HARBOR_REGISTRY}" \
-            -u "$HARBOR_USER" -p "$HARBOR_PASS" --tls-verify=false
+          $BUILD_CMD login "${HARBOR_REGISTRY}" \
+            -u "$HARBOR_USER" -p "$HARBOR_PASS"
 
           for tag in latest sha-${SHORT_SHA}; do
-            podman tag flaskpaste:latest "${HARBOR_REGISTRY}/library/flaskpaste:${tag}"
-            podman push "${HARBOR_REGISTRY}/library/flaskpaste:${tag}" --tls-verify=false
+            $BUILD_CMD tag flaskpaste:latest "${HARBOR_REGISTRY}/library/flaskpaste:${tag}"
+            $BUILD_CMD push "${HARBOR_REGISTRY}/library/flaskpaste:${tag}"
             echo "Pushed: ${HARBOR_REGISTRY}/library/flaskpaste:${tag}"
           done