install redis on kubernetes

## set repo

[root@k8smaster ~]# helm repo add bitnami https://charts.bitnami.com/bitnami
"bitnami" has been added to your repositories

## set repo

[root@k8smaster ~]# helm repo add bitnami https://charts.bitnami.com/bitnami^C
[root@k8smaster ~]# helm install bitnami/redis
NAME:   esteemed-pug
LAST DEPLOYED: Wed Jun 24 18:16:53 2020
NAMESPACE: default
STATUS: DEPLOYED

RESOURCES:
==> v1/ConfigMap
NAME                       DATA  AGE
esteemed-pug-redis         3     0s
esteemed-pug-redis-health  6     0s

==> v1/Pod(related)
NAME                         READY  STATUS   RESTARTS  AGE
esteemed-pug-redis-master-0  0/1    Pending  0         0s
esteemed-pug-redis-slave-0   0/1    Pending  0         0s

==> v1/Secret
NAME                TYPE    DATA  AGE
esteemed-pug-redis  Opaque  1     0s

==> v1/Service
NAME                         TYPE       CLUSTER-IP      EXTERNAL-IP  PORT(S)   AGE
esteemed-pug-redis-headless  ClusterIP  None            <none>       6379/TCP  0s
esteemed-pug-redis-master    ClusterIP  10.104.147.249  <none>       6379/TCP  0s
esteemed-pug-redis-slave     ClusterIP  10.97.255.19    <none>       6379/TCP  0s

==> v1/StatefulSet
NAME                       READY  AGE
esteemed-pug-redis-master  0/1    0s
esteemed-pug-redis-slave   0/2    0s


NOTES:
** Please be patient while the chart is being deployed **
Redis can be accessed via port 6379 on the following DNS names from within your cluster:

esteemed-pug-redis-master.default.svc.cluster.local for read/write operations
esteemed-pug-redis-slave.default.svc.cluster.local for read-only operations


To get your password run:

    export REDIS_PASSWORD=$(kubectl get secret --namespace default esteemed-pug-redis -o jsonpath="{.data.redis-password}" | base64 --decode)

To connect to your Redis server:

1. Run a Redis pod that you can use as a client:
   kubectl run --namespace default esteemed-pug-redis-client --rm --tty -i --restart='Never' \
    --env REDIS_PASSWORD=$REDIS_PASSWORD \
   --image docker.io/bitnami/redis:6.0.5-debian-10-r10 -- bash

2. Connect using the Redis CLI:
   redis-cli -h esteemed-pug-redis-master -a $REDIS_PASSWORD
   redis-cli -h esteemed-pug-redis-slave -a $REDIS_PASSWORD

To connect to your database from outside the cluster execute the following commands:

    kubectl port-forward --namespace default svc/esteemed-pug-redis-master 6379:6379 &
    redis-cli -h 127.0.0.1 -p 6379 -a $REDIS_PASSWORD



[root@k8smaster ~]#