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Command: node config

The node config command is used to view or modify client configuration details. This command only works on client nodes, and can be used to update the running client configurations it supports.

Usage

nomad node config [options]

The arguments behave differently depending on the flags given. See each flag's description below for specific usage information and requirements.

General Options

  • -address=<addr>: The address of the Nomad server. Overrides the NOMAD_ADDR environment variable if set. Defaults to http://127.0.0.1:4646.

  • -region=<region>: The region of the Nomad server to forward commands to. Overrides the NOMAD_REGION environment variable if set. Defaults to the Agent's local region.

  • -no-color: Disables colored command output. Alternatively, NOMAD_CLI_NO_COLOR may be set.

  • -ca-cert=<path>: Path to a PEM encoded CA cert file to use to verify the Nomad server SSL certificate. Overrides the NOMAD_CACERT environment variable if set.

  • -ca-path=<path>: Path to a directory of PEM encoded CA cert files to verify the Nomad server SSL certificate. If both -ca-cert and -ca-path are specified, -ca-cert is used. Overrides the NOMAD_CAPATH environment variable if set.

  • -client-cert=<path>: Path to a PEM encoded client certificate for TLS authentication to the Nomad server. Must also specify -client-key. Overrides the NOMAD_CLIENT_CERT environment variable if set.

  • -client-key=<path>: Path to an unencrypted PEM encoded private key matching the client certificate from -client-cert. Overrides the NOMAD_CLIENT_KEY environment variable if set.

  • -tls-server-name=<value>: The server name to use as the SNI host when connecting via TLS. Overrides the NOMAD_TLS_SERVER_NAME environment variable if set.

  • -tls-skip-verify: Do not verify TLS certificate. This is highly not recommended. Verification will also be skipped if NOMAD_SKIP_VERIFY is set.

  • -token: The SecretID of an ACL token to use to authenticate API requests with. Overrides the NOMAD_TOKEN environment variable if set.

Node Config Options

  • -servers: List the client's known servers. Client nodes do not participate in the gossip pool, and instead register with these servers periodically over the network. The initial value of this list may come from configuration files using the servers configuration option in the client block.

  • -update-servers: Updates the client's server list using the provided arguments. Multiple server addresses may be passed using multiple arguments. When updating the servers list, you must specify ALL of the server nodes you wish to configure. The set is updated atomically. It is an error to specify this flag without any server addresses. If you do not specify a port for each server address, the default port 4647 will be used.

Examples

Query the currently known servers:

$ nomad node config -servers
server1:4647
server2:4647

Update the list of servers:

$ nomad node config -update-servers server1:4647 server2:4647 server3:4647 server4