fix: harden week-two ordering, artwork and operations

ops/backup.py

@@ -9,9 +9,10 @@ from uuid import uuid4
 
 ROOT = Path(__file__).resolve().parent.parent
 BACKUPS = ROOT / 'backups'
+COMPOSE = ['docker','compose','-f','compose.local.yaml']
 
 def docker(script, *args, **kwargs):
-    return subprocess.run(['docker','compose','exec','-T','db','sh','-c',script,'sh',*args],
+    return subprocess.run([*COMPOSE,'exec','-T','db','sh','-c',script,'sh',*args],
                           cwd=ROOT,check=True,**kwargs)
 
 def checksum(path):
@@ -21,7 +22,7 @@ def checksum(path):
     return digest.hexdigest()
 
 def compose_exec(service, *command, **kwargs):
-    return subprocess.run(['docker','compose','exec','-T',service,*command],
+    return subprocess.run([*COMPOSE,'exec','-T',service,*command],
                           cwd=ROOT,check=True,**kwargs)
 
 def create():
@@ -38,7 +39,7 @@ def create():
             docker('pg_dump -U "$POSTGRES_USER" -d "$POSTGRES_DB" --format=custom',stdout=stream)
         with objects.open('xb') as stream:
             created.append(objects);objects.chmod(0o600)
-            result=compose_exec('api','python','-m','local.storage_backup','export',
+            result=compose_exec('api','python','-m','ops.storage_backup','export',
                                 stdout=stream,stderr=subprocess.PIPE)
         summaries=[line.removeprefix('DTF_BACKUP_SUMMARY ') for line in
                    result.stderr.decode().splitlines() if line.startswith('DTF_BACKUP_SUMMARY ')]
@@ -111,7 +112,7 @@ def verify(path):
         if had_legacy:legacy_sidecar.write_bytes(previous)
         else:legacy_sidecar.unlink(missing_ok=True)
     with objects.open('rb') as stream:
-        compose_exec('api','python','-m','local.storage_backup','verify',stdin=stream)
+        compose_exec('api','python','-m','ops.storage_backup','verify',stdin=stream)
     print('PASS: combined database and clean-object backup verified. Active data was untouched.')
 
 if __name__=='__main__':