custom-pod-list

#!/usr/bin/env python3

import os

from kubernetes import client, config
from kubernetes.client.rest import ApiException
from prettytable import PrettyTable

kubeconfig = os.getenv("K8S_AUTH_KUBECONFIG") or os.getenv("KUBECONFIG")
config.load_kube_config(kubeconfig)

def get_pods():
    t = PrettyTable(['Name', 'Node', 'Status'])
    t.align['Name'] = 'l'                                                                                                       
    t.align['Status'] = 'l'
    t.align['Node'] = 'l'
    t.border = False
    t.right_padding_width = 1
    t.left_padding_width = 0

    v1 = client.CoreV1Api()
    label_selector = [] #["example-cnf-type=cnf-app"]
    pod_list = v1.list_namespaced_pod("example-cnf", label_selector=",".join(label_selector))
    for pod in pod_list.items:
        reason = pod.status.phase                                                                                               
        if pod.status.reason:
            reason = pod.status.reason
        has_running = False
        restarts = 0
        if pod.status.container_statuses:
            for item in pod.status.container_statuses:
                restarts += item.restart_count
                if item.state.waiting and item.state.waiting.reason:
                    reason = item.state.waiting.reason
                elif item.state.terminated and item.state.terminated.reason:
                    reason = item.state.terminated.reason
                elif item.state.terminated:
                    if item.state.terminated.signal:
                        resaon = ("Signal:%s" % item.state.terminated.signal)
                    else:
                        reason = ("ExitCode:%s" % item.state.terminated.exit_code)
                elif item.ready and item.state.running:
                    has_running = True
        if reason == "Completed" and has_running:
            pass
        if pod.metadata.deletion_timestamp and pod.status.reason == "NodeLost":
            reason = "Unknown"
        elif pod.metadata.deletion_timestamp:
            reason = "Terminating"
        
        name = pod.metadata.name[:40]
        t.add_row([name, pod.spec.node_name, reason])
    print(t)

if __name__ == "__main__":
    get_pods()