I have a k8s cluster and get the list of images if I run:
kubectl get pods --all-namespaces -o jsonpath="{..image}" |\
tr -s '[[:space:]]' '\n' |\
sort |\
uniq -c
-this works.
Now, I have to list all images which do not start with a particular string, say "random.domain.com"
how to filter out attribute values using jsonpath?
I have tried out below.
kubectl get pods --all-namespaces -o jsonpath="{..image}[?(@.image!="random.domain.com")]" |\
tr -s '[[:space:]]' '\n' |\
sort |\
uniq -c
As a workaround, I am using -
kubectl get pods --all-namespaces -o jsonpath="{.items[*].spec.containers[*].image}" |\
tr -s '[[:space:]]' '\n' |sort |uniq -c| grep -v "random.domain.com"But wanted to know how we can get this done by using jsonpath.
Thanks.
I have no idea how to work with jsonpath (atm). but here how you can do that with jq
kubectl get pods -o json | \
jq '[.items[].spec.containers[].image | select(. | startswith("random.domain.com") | not )] | unique'AFAIS, according to the documentation, you can't do that with JSON path itself