Helm/Redis

helm repo add bitnami https://charts.bitnami.com/bitnami
helm repo update && helm repo list
kubectl config get-contexts

Config

export KUBECONFIG="${HOME}/.kube/dev-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/gcp-kubeconfig.yaml"
export KUBECONFIG="${HOME}/.kube/config"

Install

helm show values bitnami/redis --version=19.6.4|less helm show values bitnami/redis --version=20.0.2|less	kubectl get ns|grep redis kubectl delete ns redis	kubectl get ns|grep redis kubectl create ns redis
cat <<YML | helm -n redis install redis bitnami/redis --version=20.0.2 -f - --- global: storageClass: standard redis: password: sadaqah! master: count: 1 service: nodePorts: redis: 30000 replica: replicaCount: 1 YML
redis-cli -h redis.k8s.local	redis-cli -h replica.redis.k8s.local

Uninstall

helm uninstall -n redis redis
kubectl delete namespace redis

Swiss Knife

kubectl -n redis run -i --tty --rm redis-cli --image=alpine --restart=Never -- sh
echo -n password: ;read -s REDISCLI_AUTH;export REDISCLI_AUTH;echo
apk --update add redis inetutils-telnet

echo 'ping'|redis-cli -h redis-headless.redis.svc.cluster.local
echo 'ping'|redis-cli -h redis-headless.redis.svc
echo 'ping'|redis-cli -h redis-headless.redis
echo 'ping'|redis-cli -h redis-headless

echo 'ping'|redis-cli -h redis-replicas.redis.svc.cluster.local
echo 'ping'|redis-cli -h redis-replicas.redis.svc
echo 'ping'|redis-cli -h redis-replicas.redis
echo 'ping'|redis-cli -h redis-replicas

echo 'ping'|redis-cli -h redis-master.redis.svc.cluster.local
echo 'ping'|redis-cli -h redis-master.redis.svc
echo 'ping'|redis-cli -h redis-master.redis
echo 'ping'|redis-cli -h redis-master

Playground

helm -n redis install redis bitnami/redis --version=19.6.4 helm -n redis upgrade -i redis bitnami/redis --version=20.0.2 helm show values bitnami/redis --version=20.0.2|less
kubectl -n redis get secret redis -o json|jq -r '.data."redis-password"'|base64 -d;echo kubectl -n redis exec -it svc/redis-replicas -c redis -- bash kubectl -n redis exec -it svc/redis-master -c redis -- bash
kubectl config --kubeconfig=${HOME}/.kube/aws-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/dev-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/gcp-kubeconfig.yaml view --flatten kubectl config --kubeconfig=${HOME}/.kube/config view --flatten
kubectl -n redis delete all --all kubectl -n redis delete ing --all kubectl -n redis delete sts --all	kubectl -n redis delete svc --all kubectl -n redis delete pvc --all kubectl -n redis delete pv --all
kubectl -n redis rollout history sts redis kubectl -n redis rollout restart sts redis kubectl -n redis rollout status sts redis	kubectl -n redis exec -it svc/redis-master -- redis-cli kubectl -n redis logs -f svc/redis-master -c redis kubectl -n redis logs -f svc/redis-replicas -c redis

References

Helm » Prometheus Stack Helm » Redis » Cluster Helm » Cert Manager Helm » Redis Helm
Redis » Bitnami » Helm Charts Redis » Bitnami » Package Redis
K8s » Configure Service Accounts for Pods K8s » Restart Pods With Kubectl K8s » Interactive Pod K8s » Restart Pods Docker » Makefile Kubernetes Minikube Kubectl CURL K8s	K8s » kubectl rollout K8s » CSI Hostpath Driver K8s » Ingress CIDR UFW