Error installing TimescaleDB with K8S / Helm : MountVolume.SetUp failed for volume "certificate" : secret "timescaledb-certificate" not found

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I just tried to install timescaleDB Single with Helm in minikube on Ubuntu 20.04.

After installing via:

helm install timescaledb timescaledb/timescaledb-single --namespace espace-client-v2

I got the message:

āžœ  ~ helm install timescaledb timescaledb/timescaledb-single  --namespace espace-client-v2
NAME: timescaledb
LAST DEPLOYED: Fri Aug  7 17:17:59 2020
NAMESPACE: espace-client-v2
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
TimescaleDB can be accessed via port 5432 on the following DNS name from within your cluster:
timescaledb.espace-client-v2.svc.cluster.local

To get your password for superuser run:

    # superuser password
    PGPASSWORD_POSTGRES=$(kubectl get secret --namespace espace-client-v2 timescaledb-credentials -o jsonpath="{.data.PATRONI_SUPERUSER_PASSWORD}" | base64 --decode)

    # admin password
    PGPASSWORD_ADMIN=$(kubectl get secret --namespace espace-client-v2 timescaledb-credentials -o jsonpath="{.data.PATRONI_admin_PASSWORD}" | base64 --decode)

To connect to your database, chose one of these options:

1. Run a postgres pod and connect using the psql cli:
    # login as superuser
    kubectl run -i --tty --rm psql --image=postgres \
      --env "PGPASSWORD=$PGPASSWORD_POSTGRES" \
      --command -- psql -U postgres \
      -h timescaledb.espace-client-v2.svc.cluster.local postgres

    # login as admin
    kubectl run -i --tty --rm psql --image=postgres \
      --env "PGPASSWORD=$PGPASSWORD_ADMIN" \
      --command -- psql -U admin \
      -h timescaledb.espace-client-v2.svc.cluster.local postgres

2. Directly execute a psql session on the master node

   MASTERPOD="$(kubectl get pod -o name --namespace espace-client-v2 -l release=timescaledb,role=master)"
   kubectl exec -i --tty --namespace espace-client-v2 ${MASTERPOD} -- psql -U postgres

It seemed to have installed well.

But then, when executing:

     PGPASSWORD_POSTGRES=$(kubectl get secret --namespace espace-client-v2 timescaledb-credentials -o jsonpath="{.data.PATRONI_SUPERUSER_PASSWORD}" | base64 --decode)

Error from server (NotFound): secrets "timescaledb-credentials" not found

After that, I realized pod has not even been created, and it gives me the following errors

MountVolume.SetUp failed for volume "certificate" : secret "timescaledb-certificate" not found

Unable to attach or mount volumes: unmounted volumes=[certificate], unattached volumes=[storage-volume wal-volume patroni-config timescaledb-scripts certificate socket-directory timescaledb-token-svqqf]: timed out waiting for the condition

What should I do ?

timescaledb kubernetes-helm kubernetes
1 Answers

I could do it. If the page https://github.com/timescale/timescaledb-kubernetes doesn't give much details about installation process, you can go here:

https://github.com/timescale/timescaledb-kubernetes/tree/master/charts/timescaledb-single

I had to use kustomize to generate content:

./generate_kustomization.sh my-release

and then it generate several files:

credentials.conf  kustomization.yaml  pgbackrest.conf  timescaledbMap.yaml  tls.crt  tls.key

then I did:

kubectl kustomize ./

which generated a k8s yml file, which I saved with the name timescaledbMap.yaml

Finally, I did:

kubectl apply -f timescaledbMap.yaml

Then it created all necesarry secrets, and I could install chart

. Hope it helps others.

user_19565580
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