Install Galera (MySQL)¶

For the Kubernetes-based MCP clusters, you must also install Galera as a back end for StackLight LMA. Galera is a synchronous multi-master database cluster based on the MySQL storage engine.

To install Galera:

1. Log in to the Salt Master node.

2. Apply the galera state:

   salt -C 'I@galera:master' state.sls galera
   salt -C 'I@galera:slave' state.sls galera -b 1
   

3. Verify that Galera is up and running:

   salt -C 'I@galera:master' mysql.status | grep -A1 wsrep_cluster_size
   salt -C 'I@galera:slave' mysql.status | grep -A1 wsrep_cluster_size