Create a MogDB Cluster

Create a Cluster Using the mgo Command

Refer to mgo create cluster and create a cluster, for example:

mgo create cluster cluster1

Expected output:

created cluster: cluster1

This will create a new MogDB cluster named cluster1 , which may take some time to complete.

You can use the mgo show cluster command to check the status of cluster creation. This command is used to check the details of the MogDB cluster.

For example, when cluster1 is ready, run the following command:

mgo show cluster cluster1

Expected output:

cluster : cluster1
 pod : cluster1-ib7zq (Running) on mogdb-k8s-001 (3/3) (primary)
 pod : cluster1-rtwdz (Running) on mogdb-k8s-002 (3/3) (standby)
 service : cluster1-svc-master - ClusterIP (10.1.149.4) - Ports (5432:30013/TCP)
 service : cluster1-svc-replicas - ClusterIP (10.1.175.46) - Ports (5432:30012/TCP)

Cluster Creation Process

First, the mgo client creates an entry in the custom resource mogdbcluster that contains the properties needed to create the cluster. In the example above, cluster1 utilizes many of the defaults in the MogDB Operator configuration. For example, the default two slave nodes (replicas:2).

We will cover more information about the MogDB Operator configuration later in this tutorial.