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--- private:arie:k8 [2024/12/24 16:17] – created arie
+++ private:arie:k8 [Unknown date] (current) – removed - external edit (Unknown date) 127.0.0.1
@@ Line 1: / Line 1: @@
-====== k8 notes of Arie ======
-<code>
-#Bash into container
-k exec -it wiki-dokuwiki-9f9fd859d-2wfx6 bash
-kush wiki-dokuwiki
-# fetch chart to analyse values.yaml
-helm fetch gitlab/gitlab --untar
-# debug certs
-kug orders,challenges -o wide
-# Delete PV that has finalizers
-pv=pvc-daec7eed-fc8e-4281-a15b-6b370df54804
-echo '{"metadata": {"finalizers": null}}' | kubectl patch pv $pv --patch-file=/dev/stdin
-# Delete POD that got stuck (and no finalizers to delete)
-kubectl delete pods fluent-bit-xczr2 --grace-period=0 --force
-#copy file into pod
-kubectl cp /mnt/common/tmp/run dev/page2-dp-77f87664bb-4l8mc:/tmp/run
-# Delete namespace that got stuck
-namespaceToDelete=brocha
-kubectl get namespace "$namespaceToDelete" -o json | \
- jq 'del(.spec.finalizers)'   | \
- kubectl replace --raw /api/v1/namespaces/$namespaceToDelete/finalize -f -
-# drain and evict pods from a node
-kubectl drain --ignore-daemonsets --delete-emptydir-data k8i03
-#untaint
-kubectl uncordon k8i03
-# port forwarding of localport 40090 to port 9090 of the svc
-kubectl port-forward -n monitoring svc/prometheus-k8s 40090:9090 --address='0.0.0.0'
-# see nodes labels
-kug nodes --show-labels
-# remove label worker from a node:
-kubectl label node ip-10-0-7-187.ec2.internal worker-
-# add control-plane label
-kubectl label node k8r05 node-role.kubernetes.io/control-plane=
-kubectl label node k8p01 general=yes
-# See cpu/mem usage by nodes
-kubectl top node
-# Show pod by label
-kug pod -n monitoring -l app.kubernetes.io/name=kube-state-metrics
-# kill pods by label
-kudel pod -n nqa -l app=etljobs-sel
-# watch hpa of gwpa@rnd
-kug hpa -n rnd gwpa-hpa --watch
-# events on API of prod2 farm
-kug events -n prod2
-</code>