Show the CoreDNS Service Entries in Tabular Format

list_k8s_services.py

from kubernetes import client, config
from prettytable import PrettyTable

# Load kube config from the default location (~/.kube/config)
config.load_kube_config()

# Initialize the Kubernetes API client
v1 = client.CoreV1Api()

# Create a table for displaying the output
table = PrettyTable()
table.field_names = ["Service Name", "Namespace", "Cluster IP", "DNS Entry"]

# Get all services in all namespaces
services = v1.list_service_for_all_namespaces()

# Loop through the services and generate DNS entries
for svc in services.items:
    service_name = svc.metadata.name
    namespace = svc.metadata.namespace
    cluster_ip = svc.spec.cluster_ip
    # Kubernetes DNS entry format: <service-name>.<namespace>.svc.cluster.local
    dns_entry = f"{service_name}.{namespace}.svc.cluster.local"

    # Add row to table
    table.add_row([service_name, namespace, cluster_ip, dns_entry])

# Print the table
print(table)