mirror of https://github.com/hashicorp/consul
141 lines
4.3 KiB
Go
141 lines
4.3 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: MPL-2.0
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package structs
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import (
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"time"
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autopilot "github.com/hashicorp/raft-autopilot"
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"github.com/hashicorp/serf/serf"
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)
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// Autopilotconfig holds the Autopilot configuration for a cluster.
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type AutopilotConfig struct {
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// CleanupDeadServers controls whether to remove dead servers when a new
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// server is added to the Raft peers.
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CleanupDeadServers bool
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// LastContactThreshold is the limit on the amount of time a server can go
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// without leader contact before being considered unhealthy.
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LastContactThreshold time.Duration
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// MaxTrailingLogs is the amount of entries in the Raft Log that a server can
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// be behind before being considered unhealthy.
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MaxTrailingLogs uint64
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// MinQuorum sets the minimum number of servers required in a cluster
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// before autopilot can prune dead servers.
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MinQuorum uint
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// ServerStabilizationTime is the minimum amount of time a server must be
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// in a stable, healthy state before it can be added to the cluster. Only
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// applicable with Raft protocol version 3 or higher.
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ServerStabilizationTime time.Duration
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// (Enterprise-only) RedundancyZoneTag is the node tag to use for separating
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// servers into zones for redundancy. If left blank, this feature will be disabled.
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RedundancyZoneTag string
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// (Enterprise-only) DisableUpgradeMigration will disable Autopilot's upgrade migration
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// strategy of waiting until enough newer-versioned servers have been added to the
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// cluster before promoting them to voters.
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DisableUpgradeMigration bool
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// (Enterprise-only) UpgradeVersionTag is the node tag to use for version info when
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// performing upgrade migrations. If left blank, the Consul version will be used.
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UpgradeVersionTag string
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// CreateIndex/ModifyIndex store the create/modify indexes of this configuration.
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CreateIndex uint64
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ModifyIndex uint64
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}
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func (c *AutopilotConfig) ToAutopilotLibraryConfig() *autopilot.Config {
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if c == nil {
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return nil
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}
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return &autopilot.Config{
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CleanupDeadServers: c.CleanupDeadServers,
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LastContactThreshold: c.LastContactThreshold,
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MaxTrailingLogs: c.MaxTrailingLogs,
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MinQuorum: c.MinQuorum,
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ServerStabilizationTime: c.ServerStabilizationTime,
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Ext: c.autopilotConfigExt(),
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}
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}
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// AutopilotHealthReply is a representation of the overall health of the cluster
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type AutopilotHealthReply struct {
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// Healthy is true if all the servers in the cluster are healthy.
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Healthy bool
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// FailureTolerance is the number of healthy servers that could be lost without
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// an outage occurring.
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FailureTolerance int
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// Servers holds the health of each server.
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Servers []AutopilotServerHealth
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}
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// ServerHealth is the health (from the leader's point of view) of a server.
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type AutopilotServerHealth struct {
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// ID is the raft ID of the server.
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ID string
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// Name is the node name of the server.
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Name string
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// Address is the address of the server.
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Address string
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// The status of the SerfHealth check for the server.
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SerfStatus serf.MemberStatus
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// Version is the version of the server.
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Version string
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// Leader is whether this server is currently the leader.
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Leader bool
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// LastContact is the time since this node's last contact with the leader.
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LastContact time.Duration
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// LastTerm is the highest leader term this server has a record of in its Raft log.
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LastTerm uint64
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// LastIndex is the last log index this server has a record of in its Raft log.
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LastIndex uint64
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// Healthy is whether or not the server is healthy according to the current
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// Autopilot config.
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Healthy bool
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// Voter is whether this is a voting server.
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Voter bool
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// StableSince is the last time this server's Healthy value changed.
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StableSince time.Time
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}
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// RaftStats holds miscellaneous Raft metrics for a server.
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type RaftStats struct {
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// LastContact is the time since this node's last contact with the leader.
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LastContact string
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// LastTerm is the highest leader term this server has a record of in its Raft log.
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LastTerm uint64
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// LastIndex is the last log index this server has a record of in its Raft log.
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LastIndex uint64
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}
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func (s *RaftStats) ToAutopilotServerStats() *autopilot.ServerStats {
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duration, _ := time.ParseDuration(s.LastContact)
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return &autopilot.ServerStats{
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LastContact: duration,
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LastTerm: s.LastTerm,
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LastIndex: s.LastIndex,
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}
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}
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