Verify the cluster operation

Give the cluster a few minutes to initialize. Once kubectl get psmdb -n <namespace> shows the status as ready, you can connect.

To connect to Percona Server for MongoDB you need to construct the MongoDB connection URI string. It includes the credentials of the admin user, which are stored in the Secrets object.

1. List the Secrets objects:

   kubectl get secrets -n <namespace>
   

   The Secrets object we target is named as <cluster_name>-secrets. The <cluster_name> value is the name of your Percona Server for MongoDB cluster. The default name is:

   via kubectlvia Helm

   my-cluster-name-secrets

   cluster1-psmdb-db-secrets

2. Retrieve admin credentials:

   kubectl get secret my-cluster-name-secrets -n psmdb -o yaml
   

   Look for these base64-encoded entries:

   data:
     MONGODB_DATABASE_ADMIN_USER: ZGF0YWJhc2VBZG1pbg==
     MONGODB_DATABASE_ADMIN_PASSWORD: aDAzQ0pCY3NSWEZ2ZUIzS1I=
   

   Decode with:

   echo '<username>' | base64 --decode
   echo '<password>' | base64 --decode
   

3. Connect with a MongoDB client. The following command deploys a new Pod percona-client and connects its console output to your terminal:

   kubectl run -i --rm --tty percona-client --image=percona/percona-server-mongodb:8.0.19-7 --restart=Never --env="POD_NAMESPACE=psmdb" -- bash -il
   

4. Connect to Percona Server for MongoDB using mongosh. If you deployed a sharded cluster, you need to use the mongos service as the host. If you deployed a replica set, you need to use the replica set service and include the replica set name.

   Replace <username> and <password> with the decoded values from the Secret. Replace <cluster-name> with the name of your cluster and <namespace> with the namespace where you deployed the cluster.

   • If sharding is enabled (default):

     mongosh "mongodb://<username>:<password>@<cluster-name>-mongos.<namespace>.svc.cluster.local/admin?ssl=false"
     

   • If sharding is disabled:

     mongosh "mongodb+srv://<username>:<password>@<cluster-name>-rs0.<namespace>.svc.cluster.local/admin?replicaSet=rs0&ssl=false"
     

---

Last update: March 23, 2026
Created: March 23, 2026