open-nomad/website/content/docs/configuration/autopilot.mdx
2021-01-05 19:02:39 -05:00

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---
layout: docs
page_title: autopilot Stanza - Agent Configuration
sidebar_title: autopilot
description: >-
The "autopilot" stanza configures the Nomad agent to configure Autopilot
behavior.
---
# `autopilot` Stanza
<Placement groups={['autopilot']} />
The `autopilot` stanza configures the Nomad agent to configure Autopilot behavior.
For more information about Autopilot, see the [Autopilot Guide](https://learn.hashicorp.com/tutorials/nomad/autopilot).
```hcl
autopilot {
cleanup_dead_servers = true
last_contact_threshold = "200ms"
max_trailing_logs = 250
server_stabilization_time = "10s"
enable_redundancy_zones = false
disable_upgrade_migration = false
enable_custom_upgrades = false
}
```
## `autopilot` Parameters
- `cleanup_dead_servers` `(bool: true)` - Specifies automatic removal of dead
server nodes periodically and whenever a new server is added to the cluster.
- `last_contact_threshold` `(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`.
- `max_trailing_logs` `(int: 250)` specifies the maximum number of log entries
that a server can trail the leader by before being considered unhealthy.
- `server_stabilization_time` `(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`.
- `enable_redundancy_zones` `(bool: false)` - (Enterprise-only) Controls whether
Autopilot separates servers into zones for redundancy, in conjunction with the
[redundancy_zone](/docs/configuration/server#redundancy_zone) parameter.
Only one server in each zone can be a voting member at one time.
- `disable_upgrade_migration` `(bool: false)` - (Enterprise-only) Disables Autopilot's
upgrade migration strategy in Nomad Enterprise of waiting until enough
newer-versioned servers have been added to the cluster before promoting any of
them to voters.
- `enable_custom_upgrades` `(bool: false)` - (Enterprise-only) Specifies whether to
enable using custom upgrade versions when performing migrations, in conjunction with
the [upgrade_version](/docs/configuration/server#upgrade_version) parameter.