ci: 由 VM 任务启动本地 Docker daemon

.gitea/workflows/vm-kind-smoke.yml

@@ -9,6 +9,45 @@ jobs:
   kind:
     runs-on: [self-hosted, vm-dev]
     steps:
+      - name: Start job-local Docker
+        shell: bash
+        run: |
+          set -euo pipefail
+          sudo install -d /var/lib/docker
+          sudo truncate -s 20G /tmp/docker-data.img
+          sudo mkfs.ext4 -F /tmp/docker-data.img
+          sudo mount -o loop /tmp/docker-data.img /var/lib/docker
+
+          # A nested systemd needs a domain cgroup namespace. This is the
+          # cgroup v2 nesting initialization performed by the official DinD
+          # entrypoint, kept here because the shared runner image deliberately
+          # does not carry a second DinD-specific entrypoint.
+          if [[ -f /sys/fs/cgroup/cgroup.controllers ]]; then
+            sudo sh -c '
+              mkdir -p /sys/fs/cgroup/init
+              while read -r pid; do
+                printf "%s\n" "$pid" \
+                  >/sys/fs/cgroup/init/cgroup.procs 2>/dev/null || true
+              done </sys/fs/cgroup/cgroup.procs
+              sed -e "s/ / +/g" -e "s/^/+/" \
+                /sys/fs/cgroup/cgroup.controllers \
+                >/sys/fs/cgroup/cgroup.subtree_control
+            '
+          fi
+
+          sudo nohup dockerd \
+            --host=unix:///var/run/docker.sock \
+            --storage-driver=overlay2 \
+            >/tmp/dockerd.log 2>&1 &
+          for _ in {1..60}; do
+            if docker info >/dev/null 2>&1; then
+              exit 0
+            fi
+            sleep 1
+          done
+          cat /tmp/dockerd.log
+          exit 1
+
       - name: Verify Docker
         shell: bash
         run: |