Populating the spockctrl.json File

Before using Spockctrl to add a node to your cluster, your cluster information must be added to the spockctrl.json file. The file template is available in the spock repository.

Warning

You should ensure that the spockctrl.json file has the correct permissions to prevent unauthorized access to database credentials.

Within the template, provide information about your cluster and each node that is in your cluster. If you are using Spockctrl to add a node to your cluster, you should also add the node details for the new node to this file before invoking spockctrl:

spockctrl.json Properties

Use properties within the spockctrl.json file describe your cluster before invoking spockctrl:

Property	Description
Global Properties	Use properties in the global section to describe your cluster.
spock -> cluster_name	The name of your cluster.
spock -> version	The pgEdge .json file version in use.
log -> log_level	Specify the message severity level to use for Spockctrl; valid options are: 0 (log errors only), 1 (log warnings and errors), 2 (log informational messages, warnings, and errors), and 3 (log debug level messages (most verbose)).
log -> log_destination	Specify the target destination for your log messages.
log -> log_file	Specify the log file name for your log files.
spock-nodes Properties	Provide a stanza about each node in your cluster in the spock-nodes section. If you are adding a node to your cluster, update this file to add the connection information for the new node before invoking spockctrl.
spock-nodes -> node_name	The unique name of a cluster node.
spock-nodes -> postgres -> postgres_ip	The IP address used for connections to the Postgres server on this node.
spock-nodes -> postgres -> postgres_port	The Postgres listener port used for connections to the Postgres server.
spock-nodes -> postgres -> postgres_user	The Postgres user that will be used for server connections.
spock-nodes -> postgres -> postgres_password	The password associated with the specified Postgres user.
spock-nodes -> postgres -> postgres_db	The name of the Postgres database.

Example - spockctrl.json Content

The following is sample content from a spockctrl.json file; customize the spockctrl.json file to contain connection information about your cluster.

{
    "global": {
        "spock": {
            "cluster_name": "pgedge",
            "version": "1.0.0"
        },
        "log": {
            "log_level": "INFO",
            "log_destination": "console",
            "log_file": "/var/log/spockctrl.log"
        }
    },
    "spock-nodes": [
        {
            "node_name": "n1",
            "postgres": {
                "postgres_ip": "127.0.0.1",
                "postgres_port": 5431,
                "postgres_user": "pgedge",
                "postgres_password": "pgedge",
                "postgres_db": "pgedge"
            }
        },
        {
            "node_name": "n2",
            "postgres": {
                "postgres_ip": "127.0.0.1",
                "postgres_port": 5432,
                "postgres_user": "pgedge",
                "postgres_password": "pgedge",
                "postgres_db": "pgedge"
            }
        },
        {
            "node_name": "n3",
            "postgres": {
                "postgres_ip": "127.0.0.1",
                "postgres_port": 5433,
                "postgres_user": "pgedge",
                "postgres_password": "pgedge",
                "postgres_db": "pgedge"
            }
        }
    ]
}