oras

import os from oras.client import OrasClient # Prepare a dummy file to push with open('artifact.txt', 'w') as f: f.write('Hello, ORAS!') registry_hostname = os.environ.get('ORAS_REGISTRY_HOSTNAME', 'localhost:5000') repository_target = f"{registry_hostname}/my/artifact:v1" username = os.environ.get('ORAS_USERNAME', '') password = os.environ.get('ORAS_PASSWORD', '') client = OrasClient(hostname=registry_hostname, insecure=True) # Use insecure=True for local registries without TLS if username and password: print(f"Attempting to login to {registry_hostname}...") try: client.login(username=username, password=password) print("Login successful.") except Exception as e: print(f"Login failed: {e}") # Depending on local setup, login might not be strictly necessary for insecure local registries print(f"Pushing artifact to {repository_target}...") try: push_response = client.push(files=["artifact.txt"], target=repository_target) print(f"Push successful: {push_response}") except Exception as e: print(f"Push failed: {e}") print("Ensure a registry is running at and accessible from '" + registry_hostname + "'. For example: 'docker run -d -p 5000:5000 --name oras-quickstart ghcr.io/oras-project/registry:latest'") # Clean up after push if successful # os.remove('artifact.txt') # Uncomment to clean up # For pulling, create a new directory to avoid conflicts if artifact.txt already exists pull_dir = './pulled_artifacts' os.makedirs(pull_dir, exist_ok=True) print(f"Pulling artifact from {repository_target} into {pull_dir}...") try: # Pulls into the current working directory by default, unless oras.utils.workdir is used # For this example, we'll let it pull to current dir and specify path for clarity pulled_files = client.pull(target=repository_target, output_dir=pull_dir) print(f"Pull successful. Files: {pulled_files}") # Verify content if needed # with open(os.path.join(pull_dir, 'artifact.txt'), 'r') as f: # print(f.read()) except Exception as e: print(f"Pull failed: {e}") # Cleanup pulled files # import shutil # shutil.rmtree(pull_dir) # os.remove('artifact.txt') # If not removed after push