stolonctl:tldr:503f1

stolonctl: Update cluster specification with a patch in JSON format.

stolonctl

$ stolonctl --cluster-name ${cluster_name} --store-backend ${store_backend} --store-endpoints ${store_endpoints} update --patch '${cluster_spec}'

try on your machine

This command is using the tool "stolonctl" to update a Stolon PostgreSQL cluster with specific configuration parameters. Let's break it down:

"stolonctl": This is a command-line utility used to manage and control Stolon clusters. It provides various commands to operate on Stolon clusters.
"--cluster-name ${cluster_name}": Specifies the name of the Stolon cluster to be updated. The value of the "cluster_name" variable is passed here.
"--store-backend ${store_backend}": Specifies the type of backend used for storing cluster configuration. The value of the "store_backend" variable is passed here.
"--store-endpoints ${store_endpoints}": Specifies the endpoints (IP addresses or hostnames) where the cluster configuration data is stored. The value of the "store_endpoints" variable is passed here.
"update": Specifies the update command to be executed.
"--patch '${cluster_spec}'": Specifies the changes that should be made to the cluster configuration. The value of the "cluster_spec" variable is passed here as a patch, which typically contains a JSON or YAML representation of the updated configuration.

In summary, this command updates a Stolon PostgreSQL cluster by applying the changes defined in the "cluster_spec" variable to the cluster specified by "cluster_name". The cluster configuration is stored using the specified backend and accessible through the provided store endpoints.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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