mirror of
https://gitea.com/mcereda/oam.git
synced 2026-02-09 05:44:23 +00:00
92 lines
4.0 KiB
Bash
92 lines
4.0 KiB
Bash
#!/usr/bin/env sh
|
|
|
|
# Manage namespaces
|
|
kubectl create namespace 'gitlab'
|
|
|
|
# Manage secrets
|
|
kubectl apply --namespace 'gitlab' --values 'secrets.yaml'
|
|
kubectl create --namespace 'gitlab' secret generic 'gitlab-runner-token' --dry-run='client' --output 'yaml' \
|
|
--from-literal='runner-registration-token=""' --from-literal='runner-token=glrt-…'
|
|
kubectl --namespace 'gitea' create secret generic 'gitea-admin-secret' \
|
|
--from-literal 'username=gitea_admin' --from-literal "password=$(pulumi config get 'giteaAdminPassword')"
|
|
kubectl get secrets -n 'gitea' 'gitea' -o jsonpath='{.data.config_environment\.sh}' | base64 -d
|
|
kubectl get secrets -n 'gitea' 'gitea-inline-config' -o go-template='{{.data.mailer|base64decode}}'
|
|
|
|
# Manage nodes
|
|
kubectl get nodes 'fargate-ip-172-31-83-147.eu-west-1.compute.internal' -o 'yaml' | yq -y '.metadata.labels'
|
|
kubectl get nodes -o jsonpath='{.items[].metadata.labels}' | yq -y
|
|
|
|
# Manage events
|
|
kubectl get events -n 'monitoring' --sort-by '.metadata.creationTimestamp'
|
|
|
|
# See resources utilization
|
|
# Requires the metrics server to be running in the cluster
|
|
kubectl top nodes
|
|
kubectl top pods
|
|
|
|
# Create containers
|
|
kubectl run --image 'busybox' 'busybox' --dry-run='server' --output 'yaml'
|
|
kubectl run --rm -it --image 'alpine' 'alpine' --command -- sh
|
|
kubectl run --rm -it --image 'amazon/aws-cli:2.17.16' 'awscli' -- autoscaling describe-auto-scaling-groups
|
|
kubectl -n 'kube-system' run --rm -it 'awscli' --overrides '{"spec":{"serviceAccountName":"cluster-autoscaler-aws"}}' \
|
|
--image '012345678901.dkr.ecr.eu-west-1.amazonaws.com/cache/amazon/aws-cli:2.17.16' \
|
|
autoscaling describe-auto-scaling-groups
|
|
|
|
# Execute commands in running containers
|
|
kubectl exec 'some-pod' -- env
|
|
kubectl -n 'gitea' exec 'deploy/gitea' -c 'gitea' -- env
|
|
|
|
# Scale deployments
|
|
kubectl scale deployment -n 'kube-system' 'cluster-autoscaler-aws-cluster-autoscaler' --replicas '0'
|
|
|
|
# Add annotations
|
|
kubectl annotate sc 'gp2' 'storageclass.kubernetes.io/is-default-class'='false'
|
|
cat <<EOF | kubectl apply -f -
|
|
apiVersion: storage.k8s.io/v1
|
|
kind: StorageClass
|
|
metadata:
|
|
annotations:
|
|
storageclass.kubernetes.io/is-default-class: "true"
|
|
name: gp3
|
|
parameters:
|
|
type: gp3
|
|
provisioner: kubernetes.io/aws-ebs
|
|
reclaimPolicy: Delete
|
|
volumeBindingMode: WaitForFirstConsumer
|
|
allowVolumeExpansion: true
|
|
EOF
|
|
|
|
# Check persistent volumes' usage
|
|
# Need to connect to the pod mounting it
|
|
kubectl -n 'gitea' exec 'gitea-766fd5fb64-2qlqb' -c 'gitea' -- df -h '/data'
|
|
|
|
# Create a fictious job large enough to trigger a scale up in clusters with cluster-autoscaler
|
|
kubectl run --rm -i --restart 'Never' --image='busybox' 'resource-grabber' --override-type 'strategic' \
|
|
--overrides '{"spec":{"containers":[{"name":"main","resources":{"requests":{"cpu":"1700m"}}}]}}' \
|
|
-- \
|
|
sleep '3s'
|
|
|
|
# Remove nodes safely
|
|
kubectl cordon 'kworker-rj2' \
|
|
&& kubectl drain 'kworker-rj2' --grace-period=300 --ignore-daemonsets=true \
|
|
&& kubectl delete node 'kworker-rj2'
|
|
|
|
# Get raw information as JSON
|
|
kubectl get --raw "/api/v1/nodes/ip-172-31-69-42.eu-west-1.compute.internal/proxy/stats/summary"
|
|
# Get raw information as Prometheus metrics
|
|
kubectl get --raw "/api/v1/nodes/ip-172-31-69-42.eu-west-1.compute.internal/proxy/metrics/cadvisor"
|
|
|
|
# Get ephemeral storage usage for pods
|
|
kubectl get --raw "/api/v1/nodes/ip-172-31-69-42.eu-west-1.compute.internal/proxy/stats/summary" \
|
|
| jq '.pods[] | select(.podRef.name == "gitlab-runner-59dd68c5cb-9vcp4")."ephemeral-storage"'
|
|
# Dynamic way for the same action
|
|
POD_NAME='gitlab-runner-6ddd58fcb6-c9swk' POD_NAMESPACE='gitlab' \
|
|
&& kubectl get pods -n "$POD_NAMESPACE" "$POD_NAME" -o jsonpath='{.status.hostIP}' | tr '.' '-' \
|
|
| xargs -I '%%' kubectl get --raw '/api/v1/nodes/ip-%%.eu-west-1.compute.internal/proxy/stats/summary' \
|
|
| jq --arg 'podName' "$POD_NAME" '.pods[] | select(.podRef.name == $podName)."ephemeral-storage"'
|
|
|
|
# Show changes from the live version against a would-be applied version
|
|
kubectl kustomize 'https://github.com/kubernetes-csi/external-snapshotter/deploy/kubernetes/snapshot-controller' \
|
|
| kubectl diff -f -
|
|
kubectl diff -k 'external-snapshotter'
|