chore: Add script to clean and back up ACR

tools/docker/clean_acr.py

@@ -0,0 +1,40 @@
+import os
+import json
+from azure.storage.blob import BlobClient
+import sys
+import subprocess
+from tqdm import tqdm
+
+acr = "mmlsparkmcr"
+container = "acrbackup"
+rg = "marhamil-mmlspark"
+pipeline = "mmlsparkacrexport3"
+
+conn_string = sys.argv[1]
+
+repos = json.loads(os.popen(
+    'az acr repository list -n {}'.format(acr)).read())
+for repo in repos:
+    tags = json.loads(os.popen(
+        'az acr repository show-tags -n {} --repository {} --orderby time_desc'.format(acr, repo)).read())
+
+    for tag in tqdm(tags):
+        target_blob = repo + "/" + tag + ".tar"
+        image = repo + ":" + tag
+
+        backup_exists = BlobClient.from_connection_string(
+            conn_string, container_name=container, blob_name=target_blob).exists()
+        if not backup_exists:
+            subprocess.run(["sudo", "az", "acr", "pipeline-run", "create", "--resource-group", rg,
+                            "--registry", acr, "--pipeline", pipeline, "--name", str(abs(hash(target_blob))),
+                            "--pipeline-type", "export", "--storage-blob", target_blob, "-a", image])
+            print("Transferred {}".format(target_blob))
+        else:
+            print("Skipped existing {}".format(image))
+
+        backup_exists = BlobClient.from_connection_string(
+            conn_string, container_name=container, blob_name=target_blob).exists()
+        if backup_exists:
+            print("Deleting {}".format(image))
+            result = os.system("az acr repository delete --name {} --image {} --yes".format(acr, image))
+            assert result == 0