store docker image on /mnt

Author: dclong

.github/workflows/build_images.yml

@@ -21,19 +21,22 @@ jobs:
       - uses: actions/checkout@v3
         with:
           ref: refs/heads/main
-      - name: Free Disk Space
+      #- name: Free Disk Space
+      #  run: |
+      #    ./free_disk_space.sh
+      - name: Store Docker Images on /mnt/docker
         run: |
-          ./free_disk_space.sh
+          ./docker.py
       - name: Login to DockerHub
         uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
       - name: Build Docker Images
         run: |
-          df -lh
-          docker ps
+          #df -lh
+          #docker ps
           ./build_images.py --branch '${{ github.event.inputs.branch }}' --repo '${{ github.event.inputs.repo }}' --root-image-name '${{ github.event.inputs.root_image_name }}'
           cat graph.yaml
-          docker ps
-          df -lh
+          #docker ps
+          #df -lh

docker.py

@@ -0,0 +1,30 @@
+#!/usr/bin/env python3
+import json
+from pathlib import Path
+import subprocess as sp
+
+
+def config_data_root(data_root: str) -> dict[str, str]:
+    Path(data_root).mkdir(parents=True, exists_ok=True)
+    settings = {}
+    path = Path("/etc/docker/daemon.json")
+    if path.is_file():
+        with path.open("r", encoding="utf-8") as fin:
+            settings = json.load(fin)
+    settings["data-root"] = data_root
+    with path.open("w", encoding="utf-8") as fout:
+        json.dump(settings, fout, indent=4)
+    return settings
+
+
+def store_docker_on_mnt():
+    sp.run(cmd="systemctl stop docker", shell=True, check=True)
+    settings = config_data_root("/mnt/docker")
+    print(settings)
+    sp.run(cmd="systemctl start docker", shell=True, check=True)
+    sp.run(cmd="docker info", shell=True, check=True)
+
+
+if __name__ == "__main__":
+    store_docker_on_mnt()
+