83 lines
2.1 KiB
Go
83 lines
2.1 KiB
Go
package consul
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import (
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"context"
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"fmt"
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"net"
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"strconv"
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"github.com/armon/go-metrics"
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"github.com/hashicorp/consul/agent/consul/autopilot"
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"github.com/hashicorp/consul/agent/metadata"
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"github.com/hashicorp/raft"
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"github.com/hashicorp/serf/serf"
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)
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// AutopilotDelegate is a Consul delegate for autopilot operations.
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type AutopilotDelegate struct {
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server *Server
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}
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func (d *AutopilotDelegate) AutopilotConfig() *autopilot.Config {
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return d.server.getOrCreateAutopilotConfig()
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}
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func (d *AutopilotDelegate) FetchStats(ctx context.Context, servers []serf.Member) map[string]*autopilot.ServerStats {
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return d.server.statsFetcher.Fetch(ctx, servers)
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}
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func (d *AutopilotDelegate) IsServer(m serf.Member) (*autopilot.ServerInfo, error) {
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if m.Tags["role"] != "consul" {
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return nil, nil
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}
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portStr := m.Tags["port"]
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port, err := strconv.Atoi(portStr)
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if err != nil {
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return nil, err
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}
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buildVersion, err := metadata.Build(&m)
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if err != nil {
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return nil, err
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}
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server := &autopilot.ServerInfo{
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Name: m.Name,
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ID: m.Tags["id"],
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Addr: &net.TCPAddr{IP: m.Addr, Port: port},
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Build: *buildVersion,
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Status: m.Status,
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}
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return server, nil
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}
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// Heartbeat a metric for monitoring if we're the leader
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func (d *AutopilotDelegate) NotifyHealth(health autopilot.OperatorHealthReply) {
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if d.server.raft.State() == raft.Leader {
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metrics.SetGauge([]string{"autopilot", "failure_tolerance"}, float32(health.FailureTolerance))
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if health.Healthy {
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metrics.SetGauge([]string{"autopilot", "healthy"}, 1)
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} else {
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metrics.SetGauge([]string{"autopilot", "healthy"}, 0)
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}
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}
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}
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func (d *AutopilotDelegate) PromoteNonVoters(conf *autopilot.Config, health autopilot.OperatorHealthReply) ([]raft.Server, error) {
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future := d.server.raft.GetConfiguration()
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if err := future.Error(); err != nil {
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return nil, fmt.Errorf("failed to get raft configuration: %v", err)
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}
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return autopilot.PromoteStableServers(conf, health, future.Configuration().Servers), nil
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}
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func (d *AutopilotDelegate) Raft() *raft.Raft {
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return d.server.raft
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}
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func (d *AutopilotDelegate) Serf() *serf.Serf {
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return d.server.serfLAN
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}
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