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layout	page_title	sidebar_current	description
docs	Operator (HTTP)	docs-agent-http-operator	The operator endpoint provides cluster-level tools for Consul operators.

Operator HTTP Endpoint

The Operator endpoint provides cluster-level tools for Consul operators, such as interacting with the Raft subsystem. This was added in Consul 0.7.

~> Use this interface with extreme caution, as improper use could lead to a Consul outage and even loss of data.

If ACLs are enabled then a token with operator privileges may required in order to use this interface. See the ACL internals guide for more information.

See the Outage Recovery guide for some examples of how these capabilities are used. For a CLI to perform these operations manually, please see the documentation for the consul operator command.

The following endpoints are supported:

/v1/operator/raft/configuration: Inspects the Raft configuration
/v1/operator/raft/peer: Operates on Raft peers

Not all endpoints support blocking queries and all consistency modes, see details in the sections below.

The operator endpoints support the use of ACL Tokens. See the ACL internals guide for more information.

/v1/operator/raft/configuration

The Raft configuration endpoint supports the GET method.

GET Method

When using the GET method, the request will be forwarded to the cluster leader to retrieve its latest Raft peer configuration.

If the cluster doesn't currently have a leader an error will be returned. You can use the "?stale" query parameter to read the Raft configuration from any of the Consul servers.

By default, the datacenter of the agent is queried; however, the dc can be provided using the "?dc=" query parameter.

If ACLs are enabled, the client will need to supply an ACL Token with operator read privileges.

A JSON body is returned that looks like this:

{
  "Servers": [
    {
      "ID": "127.0.0.1:8300",
      "Node": "alice",
      "Address": "127.0.0.1:8300",
      "Leader": true,
      "Voter": true
    },
    {
      "ID": "127.0.0.2:8300",
      "Node": "bob",
      "Address": "127.0.0.2:8300",
      "Leader": false,
      "Voter": true
    },
    {
      "ID": "127.0.0.3:8300",
      "Node": "carol",
      "Address": "127.0.0.3:8300",
      "Leader": false,
      "Voter": true
    }
  ],
  "Index": 22
}

The Servers array has information about the servers in the Raft peer configuration:

ID is the ID of the server. This is the same as the Address in Consul 0.7 but may be upgraded to a GUID in a future version of Consul.

Node is the node name of the server, as known to Consul, or "(unknown)" if the node is stale and not known.

Address is the IP:port for the server.

Leader is either "true" or "false" depending on the server's role in the Raft configuration.

Voter is "true" or "false", indicating if the server has a vote in the Raft configuration. Future versions of Consul may add support for non-voting servers.

The Index value is the Raft corresponding to this configuration. Note that the latest configuration may not yet be committed if changes are in flight.

/v1/operator/raft/peer

The Raft peer endpoint supports the DELETE method.

DELETE Method

Using the DELETE method, this endpoint will remove the Consul server with given address from the Raft configuration.

There are rare cases where a peer may be left behind in the Raft configuration even though the server is no longer present and known to the cluster. This endpoint can be used to remove the failed server so that it is no longer affects the Raft quorum.

An "?address=" query parameter is required and should be set to the "IP:port" for the server to remove. The port number is usually 8300, unless configured otherwise. Nothing is required in the body of the request.

By default, the datacenter of the agent is targeted; however, the dc can be provided using the "?dc=" query parameter.

If ACLs are enabled, the client will need to supply an ACL Token with operator write privileges.

The return code will indicate success or failure.

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