K8s/Swiss Knife
export KUBECONFIG="${HOME}/.kube/lke-dev-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/gke-uat-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/eks-pro-kubeconfig.yaml"
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export KUBECONFIG="${HOME}/.kube/config"
kubectl config get-contexts
kubectl cluster-info
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kubectl get ns|grep swiss-knife
kubectl delete ns swiss-knife
kubectl create ns swiss-knife
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Deploy » Minikube
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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
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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
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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
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Deploy » EKS
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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
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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
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# 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-${USER}-pv
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Workaround
# copy dump into pod
SWISS_KNIFE_POD=$(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
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cd /opt/swiss-knife/${USER}/
aws s3 cp s3://academia-backups/gitlab/gitlab-sdlc-20240820-T1622-ZP0800.sql.gz \
gitlab-sdlc-20240820-T1622-ZP0800.sql.gz
aws s3 cp s3://academia-backups/gitlab/gitlab-sdlc-20240822-T1910-ZP0800.tar.gz \
gitlab-sdlc-20240822-T1910-ZP0800.tar.gz
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|
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cd /opt/swiss-knife/${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
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References
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