K8s/Swiss Knife

export KUBECONFIG="${HOME}/.kube/lke-dev-kubeconfig.yaml" export KUBECONFIG="${HOME}/.kube/gke-uat-kubeconfig.yaml" export KUBECONFIG="${HOME}/.kube/eks-pro-kubeconfig.yaml"

export KUBECONFIG="${HOME}/.kube/config" kubectl config get-contexts kubectl cluster-info

kubectl get ns|grep swiss-knife kubectl delete ns swiss-knife kubectl create ns swiss-knife

Deploy » Minikube

PV » Manual	PV » Dynamic	Service & Deployment
cat << YML | kubectl -n swiss-knife apply -f - --- apiVersion: v1 kind: PersistentVolume metadata: name: swiss-knife-${USER}-pv spec: storageClassName: standard capacity: storage: 10Gi accessModes: - ReadWriteOnce hostPath: path: /tmp/hostpath-provisioner/swiss-knife/swiss-knife-${USER}-pvc --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: swiss-knife-${USER} name: swiss-knife-${USER}-pvc spec: storageClassName: standard accessModes: - ReadWriteOnce resources: requests: storage: 10Gi volumeName: swiss-knife-${USER}-pv YML	cat << YML | kubectl -n swiss-knife apply -f - --- --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: swiss-knife-${USER} name: swiss-knife-${USER}-pvc spec: storageClassName: standard accessModes: - ReadWriteOnce resources: requests: storage: 10Gi YML	cat << YML | kubectl -n swiss-knife apply -f - --- apiVersion: v1 kind: Service metadata: name: swiss-knife-${USER} spec: ports: - port: 80 selector: app: swiss-knife-${USER} clusterIP: None --- apiVersion: apps/v1 kind: Deployment metadata: name: swiss-knife-${USER} spec: selector: matchLabels: app: swiss-knife-${USER} replicas: 1 template: metadata: labels: app: swiss-knife-${USER} spec: containers: - name: nginx image: nginx:1.27-alpine ports: - containerPort: 80 volumeMounts: - mountPath: /opt/swiss-knife/${USER} name: ${USER}-data volumes: - name: ${USER}-data persistentVolumeClaim: claimName: swiss-knife-${USER}-pvc restartPolicy: Always YML
kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -c nginx -- sh kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- sh kubectl -n swiss-knife port-forward svc/swiss-knife-${USER} 1980:80 kubectl -n swiss-knife port-forward svc/swiss-knife-${USER} :80
kubectl -n swiss-knife delete deploy swiss-knife-${USER} kubectl -n swiss-knife delete svc swiss-knife-${USER} kubectl -n swiss-knife delete pvc swiss-knife-${USER}-pvc kubectl delete pv swiss-knife-${USER}-pv

Deploy » EKS

PV » Manual	PV » Dynamic	Service & Deployment
cat << YML | kubectl -n swiss-knife apply -f - --- apiVersion: v1 kind: PersistentVolume metadata: name: swiss-knife-${USER}-pv spec: storageClassName: "gp2" capacity: storage: 10Gi accessModes: - ReadWriteOnce awsElasticBlockStore: fsType: ext4 volumeID: aws://ap-southeast-1/${EBS_VOLUME_ID} persistentVolumeReclaimPolicy: Retain --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: swiss-knife-${USER} name: swiss-knife-${USER}-pvc spec: storageClassName: "gp2" accessModes: - ReadWriteOnce resources: requests: storage: 10Gi volumeName: swiss-knife-${USER}-pv YML	cat << YML | kubectl -n swiss-knife apply -f - --- --- apiVersion: v1 kind: PersistentVolumeClaim metadata: labels: app.kubernetes.io/name: swiss-knife-${USER} name: swiss-knife-${USER}-pvc spec: storageClassName: "gp2" accessModes: - ReadWriteOnce resources: requests: storage: 10Gi volumeName: swiss-knife-${USER}-pv YML	cat << YML | kubectl -n swiss-knife apply -f - --- apiVersion: v1 kind: Service metadata: name: swiss-knife-${USER} spec: ports: - port: 80 selector: app: swiss-knife-${USER} clusterIP: None --- apiVersion: apps/v1 kind: Deployment metadata: name: swiss-knife-${USER} spec: selector: matchLabels: app: swiss-knife-${USER} replicas: 1 template: metadata: labels: app: swiss-knife-${USER} spec: nodeSelector: topology.kubernetes.io/zone: ap-southeast-1a containers: - name: nginx image: nginx:1.27-alpine ports: - containerPort: 80 volumeMounts: - mountPath: /opt/swiss-knife/${USER} name: ${USER}-data volumes: - name: ${USER}-data persistentVolumeClaim: claimName: swiss-knife-${USER}-pvc restartPolicy: Always YML
kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -c nginx -- sh kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- sh kubectl -n swiss-knife port-forward svc/swiss-knife-${USER} 1980:80 kubectl -n swiss-knife port-forward svc/swiss-knife-${USER} :80
# aws » ec2 » ebs » volume » name: sdlc-eks-swiss-knife-${USER}-data kubectl -n swiss-knife delete deploy swiss-knife-${USER} kubectl -n swiss-knife delete svc swiss-knife-${USER} kubectl -n swiss-knife delete pvc swiss-knife-${USER}-pvc kubectl delete pv swiss-knife-${USER}-pv

Workaround

# copy dump into pod
SWISS_KNIFE_POD=$(kubectl -n swiss-knife get pods -l app=swiss-knife-${USER} -ojson|jq -r '.items[0].metadata.name')
kubectl -n swiss-knife cp ./gitlab_sdlc-20240820-T1622-ZP0800.sql.gz ${SWISS_KNIFE_POD}:/opt/swiss-knife/${USER}
kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- ls -lah /opt/swiss-knife/${USER}

# install apk packages
kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- sh
apk --update add postgresql-client inetutils-telnet

# import psql dump
kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- sh
echo -n password: ;read -s PGPASSWORD;export PGPASSWORD;echo
gunzip -c /opt/swiss-knife/${USER}/./gitlab_sdlc-20240820-T1622-ZP0800.sql.gz|psql -Ugitlab gitlab
psql -d gitlab -U gitlab

Playground

kubectl -n swiss-knife exec -it svc/swiss-knife-${USER} -- sh apk --update add --no-cache aws-cli inetutils-telnet postgresql-client rsync aws configure --profile academia export AWS_PROFILE=academia aws sts get-caller-identity aws configure list	cd /opt/swiss-knife/${USER}/ aws s3 cp s3://academia-backups/gitlab/gitlab-sdlc-20240820-T1622-ZP0800.sql.gz \ gitlab-sdlc-20240820-T1622-ZP0800.sql.gz aws s3 cp s3://academia-backups/gitlab/gitlab-sdlc-20240822-T1910-ZP0800.tar.gz \ gitlab-sdlc-20240822-T1910-ZP0800.tar.gz
cd /opt/swiss-knife/${USER}/ tar -xzf gitlab-sdlc-20240822-T1910-ZP0800.tar.gz gunzip -c gitlab-sdlc-20240820-T1622-ZP0800.sql.gz|\ psql -hpostgresql.postgresql -p5432 -Ugitlab gitlab

References

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