I'd like to get the list of kubernetes pods for a service that are "Running" and fully "Ready".
And by fully ready, I mean shows a full "READY" count in k9s, so if there are 4 conditions for the pod to run, I see "READY" with "4/4" listed in k9s.
How can I do this?
For a particular service, my-service, this only shows pods that are fully ready
$ kubectl get pods --selector=app=my-service -o json | select_ready_pods.py
Similar idea for all pods
$ kubectl get pods --all-namespaces -o json | select_ready_pods.py
List pods that are NOT ready
$ kubectl get pods --selector=app=my-service -o json | select_ready_pods.py --not_ready
#!/usr/bin/env python
import sys
import json
try:
a = json.load(sys.stdin)
except:
print("The data from stdin doesnt appear to be valid json. Fix this!")
sys.exit(1)
def main(args):
for i in a['items']:
length = len(i['status']['conditions'])
count = 0
for j in i['status']['conditions']:
if (j['status'] == "True"):
count=count+1
if (args.not_ready):
if (count != length):
print(i['metadata']['name'])
else:
if (count == length):
print(i['metadata']['name'])
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("--not_ready", help="show pods that are NOT ready", action="store_true")
args = parser.parse_args()
main(args)
if (count == length): to if (count != length): can take you a little while to figure that out if you're not that used to work with arrays and stuff like this, other than that great answer!