Deploy a new cluster

How to deploy a new cluster

1) Go to the Elestio Clusters tab.

2) Click on Deploy My First Cluster.

3) Select your Software, for example, MySQL.

4) Choose your Provider and Service Plan, then click Next.

5) Choose a name for your cluster, for example mysql-cluster

6) On Select Support & advanced setting part, scroll down until Cluster configuration(Optional) part.

Here, you’ll have three configuration options:

• Single Node
• Primary/Replica
• Multi-Master

Single node

When choosing the Single Node option, you’ll deploy a standalone node for MySQL. This means only one node will be set up, but it will already be configured as a Primary node. This setup ensures that, in the future, if you want to scale by adding one or more nodes, it will be seamlessly possible without requiring reconfiguration.

Primary/Replica

When choosing the Primary/Replica option, you will deploy at least one Primary node, and you can specify the number of replicas to include in the cluster.

By default, the number of replicas will be determined by the minimum required for the selected software. However, you can increase the number of replicas as long as it fits within your Service Quota.

For example, if you select 3 replicas from the dropdown, your cluster will consist of 4 nodes: 1 Primary and 3 Replicas.

Multi-Master

When choosing the Multi-Master option, you will deploy 2 Primary nodes that are connected to each other, ensuring mutual synchronization and redundancy.

It’s important to note that not all software supports this option. Make sure to verify compatibility with your selected software before proceeding.

7) Click on Create Service.

Now your cluster will be configured. Depending on the selected software, this process may take a little time.

CNAME

When deploying a new cluster, you will choose a CNAME. In our example, we used mysql-cluster.

Each node in the cluster will inherit the base name and receive a number incrementally.

For example, if you deploy a Primary/Replica cluster with 3 nodes, the nodes will be named:

• mysql-cluster1
• mysql-cluster2
• mysql-cluster3

These names will also be used for their individual CNAMEs, automatically created by Elestio.

In addition, you will have a CNAME for the base name itself, such as mysql-cluster.

This base CNAME will always point to the Primary Node. If you promote a new node to Primary, the base CNAME will automatically update to reflect the change, ensuring seamless continuity without requiring reconfiguration across your services.