Openstack / List All Networks
List All Networks
Lists all networks available in the OpenStack environment.
openstack network list openstack network list #!/bin/bash
# List All Networks
openstack network list import subprocess
# List All Networks
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"openstack",
"network",
"list"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: openstack not found. Please install it first.")
if __name__ == "__main__":
run_command() When To Use
For inventory management while planning network architecture changes.
Pro Tip
Use `--external` to filter and display only external networks, reducing output size and focusing results.
Anatomy of Output
Understanding the result
+--------------------------------------+---------------------------------+ Table Header Start of the network listing.
| ID | net-external-01 | Network ID Unique identifier for the network.
| Name | External Network | Network Name The human-readable name of the network.
| Status | ACTIVE | Network Status Operating state of the network.
+--------------------------------------+---------------------------------+ Table End End of network details.
Power User Variants
Optimized versions
openstack network list --external Filters results to show only external networks.
openstack network list --long Provides additional details for every network in the listing.
Troubleshooting
Common pitfalls
Failed to list networks: api not reachable
Solution: Ensure that the OpenStack network service is up and your endpoint configuration is correct.
Unauthorized: Invalid token
Solution: Reauthenticate and ensure your token is valid for network service access.
No networks found
Solution: Verify network configurations and ensure they are created in the current project.
Command Breakdown
What each part is doing
-
openstack - Base Command
- The executable that performs this operation. Here it runs Openstack before the shell applies any redirect operators.
Alternative Approaches
Comparable commands in other tools
Alternative cloud infrastructure tools for the same job.
flyctl status --app <app_name> Ansible Inventory / Dump Default Inventory To File ansible-inventory --list --output <path/to/file> Ansible / List Groups In Inventory ansible localhost -m debug -a '<var=groups.keys()>' Aws / List Indexes aws kendra list-indexes Aws / Describe Index aws kendra describe-index --id <index_id>