Installing and using Helm on OVHcloud Managed Kubernetes

$ helm version
version.BuildInfo{Version:"v3.14.2", GitCommit:"c309b6f0ff63856811846ce18f3bdc93d2b4d54b", GitTreeState:"clean", GoVersion:"go1.22.0"}

$ helm repo add bitnami https://charts.bitnami.com/bitnami
"bitnami" has been added to your repositories

$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "bitnami" chart repository
Update Complete. ⎈ Happy Helming!⎈

$ helm install test-redis bitnami/redis --set master.persistence.enabled=false
NAME: test-redis
LAST DEPLOYED: Tue Mar 12 13:51:24 2024
NAMESPACE: default
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
CHART NAME: redis
CHART VERSION: 18.19.2
APP VERSION: 7.2.4

** Please be patient while the chart is being deployed **

Redis® can be accessed on the following DNS names from within your cluster:

    test-redis-master.default.svc.cluster.local for read/write operations (port 6379)
    test-redis-replicas.default.svc.cluster.local for read-only operations (port 6379)



To get your password run:

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

To connect to your Redis® server:

1. Run a Redis® pod that you can use as a client:

   kubectl run --namespace default redis-client --restart='Never'  --env REDIS_PASSWORD=$REDIS_PASSWORD  --image docker.io/bitnami/redis:7.2.4-debian-12-r9 --command -- sleep infinity

   Use the following command to attach to the pod:

   kubectl exec --tty -i redis-client \
   --namespace default -- bash

2. Connect using the Redis® CLI:
   REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h test-redis-master
   REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h test-redis-replicas

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

    kubectl port-forward --namespace default svc/test-redis-master 6379:6379 &
    REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h 127.0.0.1 -p 6379

WARNING: There are "resources" sections in the chart not set. Using "resourcesPreset" is not recommended for production. For production installations, please set the following values according to your workload needs:
  - master.resources
  - replica.resources
+info https://kubernetes.io/docs/concepts/configuration/manage-resources-containers/

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

$ kubectl run --namespace default redis-client --restart='Never'  --env REDIS_PASSWORD=$REDIS_PASSWORD  --image docker.io/bitnami/redis:7.2.4-debian-12-r9 --command -- sleep infinity
pod/redis-client created

$ kubectl exec --tty -i redis-client --namespace default -- bash

I have no name!@redis-client:/$ REDISCLI_AUTH="$REDIS_PASSWORD" redis-cli -h test-redis-master
test-redis-master:6379> ping
PONG
test-redis-master:6379> exit
I have no name!@redis-client:/$

I have no name!@redis-client:/$ exit
exit

$ kubectl delete pod redis-client
pod "redis-client" deleted

$ helm list
NAME      	NAMESPACE	REVISION	UPDATED                             	STATUS  	CHART        	APP VERSION
test-redis	default  	1       	2024-03-12 13:51:24.430156 +0100 CET	deployed	redis-18.19.2	7.2.4

$ helm uninstall test-redis
release "test-redis" uninstalled