add error handling, stderr output

sky/adaptors/azure.py

@@ -22,10 +22,25 @@
 
 
 def _get_account():
- return json.loads(
- run('az account show -o json',
- stdout=subprocess.PIPE,
- stderr=subprocess.DEVNULL).stdout.decode())
+ result = run('az account show -o json',
+ stdout=subprocess.PIPE,
+ stderr=subprocess.PIPE)
+
+ if result.returncode != 0:
+ error_message = result.stderr.decode()
+ print(f'Error executing command: {error_message}')
+ raise RuntimeError(
+ 'Failed to execute az account show -o json command.')
+
+ try:
+ return json.loads(result.stdout.decode())
+ except json.JSONDecodeError as e:
+ error_message = result.stderr.decode()
+ print(f'JSON parsing error: {e.msg}')
+ raise RuntimeError(
+ f'Failed to parse JSON output. Error: {e.msg}\n'
+ f'Command Error: {error_message}'
+ ) from e
 
 
 def get_subscription_id() -> str: