I am attempting to pull files from Artifactory and place them in the user’s home directory based on their authentication state, which is provided by a custom authenticator. Currently, I am using the pre_spawn_hook() method, but I am encountering a ‘Permission Denied’ error when trying to save files to the /home/jovyan location.
How to pull some files from artifactory and place in home location for the user based on auth state?
At risk of stating the obvious, have you checked the permissions on the mounted volume are correct? Do you have problems when you’re not using the pre_spawn_hook? What user-id are you using when copying the files? Can you share your full configuration?
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Hi @manics Thanks for the quick reply. Here is the code for the pre_spawn_hook, we are using user id as 1000
async def pre_spawn_hook(self, spawner):
user = self.user
auth_state = await user.get_auth_state()
if auth_state:
tenant = auth_state.get(‘tenant’)
groups = auth_state.get(“oauth_user”, {}).get(“groups”, )
self.logger.info(f"User : {self.user.name} - Selected spawning options - {self.user_options} “)
jfrog_url = ‘https://jfrog.in/artifactory/repo/file/1.0.0/file.tar’
temp_tar_path = ‘./file.tar’
extract_dir = ‘/home/jovyan’
self.download_tar(jfrog_url, temp_tar_path)
print(f"Downloaded tar file to {temp_tar_path}”)
self.extract_tar(temp_tar_path, extract_dir)
print(f"Extracted tar file to {extract_dir}")
def download_tar(self,jfrog_url, temp_tar_path):
response = requests.get(jfrog_url)
with open(temp_tar_path, ‘wb’) as f:
f.write(response.content)
def extract_tar(self,temp_tar_path, extract_dir):
print(os.getcwd())
if not os.path.exists(extract_dir):
os.makedirs(extract_dir)
with tarfile.open(temp_tar_path, ‘r:*’) as tar:
tar.extractall(path=extract_dir)
`
pre_spawn_hook runs in the hub pod, so it won’t have access to the singleuser server storage. You’ll need to run a hook in the singleuser pod instead, for example see