nomad client-config --help

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https://www.nomadproject.io/docs/commands/client-config.html

Usage: nomad client-config [options]

  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.

  The arguments behave differently depending on the flags given.
  See each flag's description for its specific requirements.

General Options:

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

  -region=<region>
    The region of the Nomad servers 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.

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

Client Config Options:

  -servers
    List the known server addresses of the client node. Client
    nodes do not participate in the gossip pool, and instead
    register with these servers periodically over the network.

  -update-servers
    Updates the client's server list using the provided
    arguments. Multiple server addresses may be passed using
    multiple arguments. IMPORTANT: When updating the servers
    list, you must specify ALL of the server nodes you wish
    to configure. The set is updated atomically.

    Example:
      $ nomad client-config -update-servers foo:4647 bar:4647