--- layout: api page_title: Autopilot - Operator - HTTP API sidebar_title: Autopilot description: |- The /operator/autopilot endpoints allow for automatic operator-friendly management of Consul servers including cleanup of dead servers, monitoring the state of the Raft cluster, and stable server introduction. --- # Autopilot Operator HTTP API The `/operator/autopilot` endpoints allow for automatic operator-friendly management of Consul servers including cleanup of dead servers, monitoring the state of the Raft cluster, and stable server introduction. Please see the [Autopilot Guide](https://learn.hashicorp.com/consul/day-2-operations/autopilot) for more details. ## Read Configuration This endpoint retrieves its latest Autopilot configuration. | Method | Path | Produces | | ------ | ----------------------------------- | ------------------ | | `GET` | `/operator/autopilot/configuration` | `application/json` | The table below shows this endpoint's support for [blocking queries](/api/features/blocking), [consistency modes](/api/features/consistency), [agent caching](/api/features/caching), and [required ACLs](/api#authentication). | Blocking Queries | Consistency Modes | Agent Caching | ACL Required | | ---------------- | ----------------- | ------------- | --------------- | | `NO` | `none` | `none` | `operator:read` | ### Parameters - `dc` `(string: "")` - Specifies the datacenter to query. This will default to the datacenter of the agent being queried. This is specified as part of the URL as a query string. - `stale` `(bool: false)` - If the cluster does not 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. ### Sample Request ```shell-session $ curl \ http://127.0.0.1:8500/v1/operator/autopilot/configuration ``` ### Sample Response ```json { "CleanupDeadServers": true, "LastContactThreshold": "200ms", "MaxTrailingLogs": 250, "ServerStabilizationTime": "10s", "RedundancyZoneTag": "", "DisableUpgradeMigration": false, "UpgradeVersionTag": "", "CreateIndex": 4, "ModifyIndex": 4 } ``` For more information about the Autopilot configuration options, see the [agent configuration section](/docs/agent/options#autopilot). ## Update Configuration This endpoint updates the Autopilot configuration of the cluster. | Method | Path | Produces | | ------ | ----------------------------------- | ------------------ | | `PUT` | `/operator/autopilot/configuration` | `application/json` | The table below shows this endpoint's support for [blocking queries](/api/features/blocking), [consistency modes](/api/features/consistency), [agent caching](/api/features/caching), and [required ACLs](/api#authentication). | Blocking Queries | Consistency Modes | Agent Caching | ACL Required | | ---------------- | ----------------- | ------------- | ---------------- | | `NO` | `none` | `none` | `operator:write` | ### Parameters - `dc` `(string: "")` - Specifies the datacenter to query. This will default to the datacenter of the agent being queried. This is specified as part of the URL as a query string. - `cas` `(int: 0)` - Specifies to use a Check-And-Set operation. The update will only happen if the given index matches the `ModifyIndex` of the configuration at the time of writing. - `CleanupDeadServers` `(bool: true)` - Specifies automatic removal of dead server nodes periodically and whenever a new server is added to the cluster. - `LastContactThreshold` `(string: "200ms")` - Specifies the maximum amount of time a server can go without contact from the leader before being considered unhealthy. Must be a duration value such as `10s`. - `MaxTrailingLogs` `(int: 250)` specifies the maximum number of log entries that a server can trail the leader by before being considered unhealthy. - `MinQuorum` `(int: 0)` - specifies the minimum number of servers needed before Autopilot can prune dead servers. - `ServerStabilizationTime` `(string: "10s")` - Specifies the minimum amount of time a server must be stable in the 'healthy' state before being added to the cluster. Only takes effect if all servers are running Raft protocol version 3 or higher. Must be a duration value such as `30s`. - `RedundancyZoneTag` `(string: "")` - Controls the node-meta key to use when Autopilot is separating servers into zones for redundancy. Only one server in each zone can be a voting member at one time. If left blank, this feature will be disabled. - `DisableUpgradeMigration` `(bool: false)` - Disables Autopilot's upgrade migration strategy in Consul Enterprise of waiting until enough newer-versioned servers have been added to the cluster before promoting any of them to voters. - `UpgradeVersionTag` `(string: "")` - Controls the node-meta key to use for version info when performing upgrade migrations. If left blank, the Consul version will be used. ### Sample Payload ```json { "CleanupDeadServers": true, "LastContactThreshold": "200ms", "MaxTrailingLogs": 250, "MinQuorum": 3, "ServerStabilizationTime": "10s", "RedundancyZoneTag": "", "DisableUpgradeMigration": false, "UpgradeVersionTag": "", "CreateIndex": 4, "ModifyIndex": 4 } ``` ## Read Health This endpoint queries the health of the autopilot status. | Method | Path | Produces | | ------ | ---------------------------- | ------------------ | | `GET` | `/operator/autopilot/health` | `application/json` | The table below shows this endpoint's support for [blocking queries](/api/features/blocking), [consistency modes](/api/features/consistency), [agent caching](/api/features/caching), and [required ACLs](/api#authentication). | Blocking Queries | Consistency Modes | Agent Caching | ACL Required | | ---------------- | ----------------- | ------------- | --------------- | | `NO` | `none` | `none` | `operator:read` | ### Parameters - `dc` `(string: "")` - Specifies the datacenter to query. This will default to the datacenter of the agent being queried. This is specified as part of the URL as a query string. ### Sample Request ```shell-session $ curl \ http://127.0.0.1:8500/v1/operator/autopilot/health ``` ### Sample response ```json { "Healthy": true, "FailureTolerance": 0, "Servers": [ { "ID": "e349749b-3303-3ddf-959c-b5885a0e1f6e", "Name": "node1", "Address": "127.0.0.1:8300", "SerfStatus": "alive", "Version": "0.7.4", "Leader": true, "LastContact": "0s", "LastTerm": 2, "LastIndex": 46, "Healthy": true, "Voter": true, "StableSince": "2017-03-06T22:07:51Z" }, { "ID": "e36ee410-cc3c-0a0c-c724-63817ab30303", "Name": "node2", "Address": "127.0.0.1:8205", "SerfStatus": "alive", "Version": "0.7.4", "Leader": false, "LastContact": "27.291304ms", "LastTerm": 2, "LastIndex": 46, "Healthy": true, "Voter": false, "StableSince": "2017-03-06T22:18:26Z" } ] } ``` - `Healthy` is whether all the servers are currently healthy. - `FailureTolerance` is the number of redundant healthy servers that could be fail without causing an outage (this would be 2 in a healthy cluster of 5 servers). - `Servers` holds detailed health information on each server: - `ID` is the Raft ID of the server. - `Name` is the node name of the server. - `Address` is the address of the server. - `SerfStatus` is the SerfHealth check status for the server. - `Version` is the Consul version of the server. - `Leader` is whether this server is currently the leader. - `LastContact` is the time elapsed since this server's last contact with the leader. - `LastTerm` is the server's last known Raft leader term. - `LastIndex` is the index of the server's last committed Raft log entry. - `Healthy` is whether the server is healthy according to the current Autopilot configuration. - `Voter` is whether the server is a voting member of the Raft cluster. - `StableSince` is the time this server has been in its current `Healthy` state. The HTTP status code will indicate the health of the cluster. If `Healthy` is true, then a status of 200 will be returned. If `Healthy` is false, then a status of 429 will be returned.