HOWTO switch of elasticsearch version with the deployer

Why do that

On the LMC platform with elasticsearch snapshotting mecanism, when you upgrade the elasticsearch version, sometimes you may have a breaking change in your mapping configuration.

To query old data in a specific cluster, you must have the capacity to swith the elasticsearch version.

Warning

This procedure is only for this use case. It is not a migration procedure !

What to do

First, add the following settings to your punchplatform.properties

"elasticsearch" : {
    "clusters" : {
        "<cluster_id>" : {
            "override_elasticsearch_version" : "elasticsearch-X.Y.Z"
        }
    }
}

Then redeploy the specific cluster

$ punchplatform-deployer.sh deploy -Kk -t elasticsearch -l <cluster_id>

Note

To keep the current version, just remove the new section and redeploy