open-consul/agent/config/default.go

300 lines
8.2 KiB
Go

package config
import (
"strconv"
"time"
"github.com/hashicorp/raft"
"github.com/hashicorp/consul/agent/checks"
"github.com/hashicorp/consul/agent/consul"
"github.com/hashicorp/consul/version"
)
// DefaultSource is the default agent configuration.
// This needs to be merged first in the head.
// TODO: return a LiteralSource (no decoding) instead of a FileSource
func DefaultSource() Source {
cfg := consul.DefaultConfig()
serfLAN := cfg.SerfLANConfig.MemberlistConfig
serfWAN := cfg.SerfWANConfig.MemberlistConfig
return FileSource{
Name: "default",
Format: "hcl",
Data: `
acl = {
token_ttl = "30s"
policy_ttl = "30s"
default_policy = "allow"
down_policy = "extend-cache"
}
bind_addr = "0.0.0.0"
bootstrap = false
bootstrap_expect = 0
check_output_max_size = ` + strconv.Itoa(checks.DefaultBufSize) + `
check_update_interval = "5m"
client_addr = "127.0.0.1"
datacenter = "` + consul.DefaultDC + `"
default_query_time = "300s"
disable_coordinates = false
disable_host_node_id = true
disable_remote_exec = true
domain = "consul."
enable_central_service_config = true
encrypt_verify_incoming = true
encrypt_verify_outgoing = true
log_level = "INFO"
max_query_time = "600s"
primary_gateways_interval = "30s"
protocol = ` + strconv.Itoa(consul.DefaultRPCProtocol) + `
retry_interval = "30s"
retry_interval_wan = "30s"
# segment_limit is the maximum number of network segments that may be declared. Default 64 is highly encouraged
segment_limit = 64
server = false
syslog_facility = "LOCAL0"
tls = {
defaults = {
tls_min_version = "TLSv1_2"
}
}
// TODO (slackpad) - Until #3744 is done, we need to keep these
// in sync with agent/consul/config.go.
autopilot = {
cleanup_dead_servers = true
last_contact_threshold = "200ms"
max_trailing_logs = 250
server_stabilization_time = "10s"
}
gossip_lan = {
gossip_interval = "` + serfLAN.GossipInterval.String() + `"
gossip_nodes = ` + strconv.Itoa(serfLAN.GossipNodes) + `
retransmit_mult = ` + strconv.Itoa(serfLAN.RetransmitMult) + `
probe_interval = "` + serfLAN.ProbeInterval.String() + `"
probe_timeout = "` + serfLAN.ProbeTimeout.String() + `"
suspicion_mult = ` + strconv.Itoa(serfLAN.SuspicionMult) + `
}
gossip_wan = {
gossip_interval = "` + serfWAN.GossipInterval.String() + `"
gossip_nodes = ` + strconv.Itoa(serfLAN.GossipNodes) + `
retransmit_mult = ` + strconv.Itoa(serfLAN.RetransmitMult) + `
probe_interval = "` + serfWAN.ProbeInterval.String() + `"
probe_timeout = "` + serfWAN.ProbeTimeout.String() + `"
suspicion_mult = ` + strconv.Itoa(serfWAN.SuspicionMult) + `
}
dns_config = {
allow_stale = true
a_record_limit = 0
udp_answer_limit = 3
max_stale = "87600h"
recursor_timeout = "2s"
}
limits = {
http_max_conns_per_client = 200
https_handshake_timeout = "5s"
rpc_handshake_timeout = "5s"
rpc_client_timeout = "60s"
rpc_rate = -1
rpc_max_burst = 1000
rpc_max_conns_per_client = 100
kv_max_value_size = ` + strconv.FormatInt(raft.SuggestedMaxDataSize, 10) + `
txn_max_req_len = ` + strconv.FormatInt(raft.SuggestedMaxDataSize, 10) + `
}
performance = {
leave_drain_time = "5s"
raft_multiplier = ` + strconv.Itoa(int(consul.DefaultRaftMultiplier)) + `
rpc_hold_timeout = "7s"
}
ports = {
dns = 8600
http = 8500
https = -1
grpc = -1
serf_lan = ` + strconv.Itoa(consul.DefaultLANSerfPort) + `
serf_wan = ` + strconv.Itoa(consul.DefaultWANSerfPort) + `
server = ` + strconv.Itoa(consul.DefaultRPCPort) + `
proxy_min_port = 20000
proxy_max_port = 20255
sidecar_min_port = 21000
sidecar_max_port = 21255
expose_min_port = 21500
expose_max_port = 21755
}
raft_protocol = 3
telemetry = {
metrics_prefix = "consul"
filter_default = true
prefix_filter = []
retry_failed_connection = true
}
raft_snapshot_threshold = ` + strconv.Itoa(int(cfg.RaftConfig.SnapshotThreshold)) + `
raft_snapshot_interval = "` + cfg.RaftConfig.SnapshotInterval.String() + `"
raft_trailing_logs = ` + strconv.Itoa(int(cfg.RaftConfig.TrailingLogs)) + `
xds {
update_max_per_second = 250
}
connect = {
enabled = true
}
peering = {
enabled = true
}
`,
}
}
// DevSource is the additional default configuration for dev mode.
// This should be merged in the head after the default configuration.
// TODO: return a LiteralSource (no decoding) instead of a FileSource
func DevSource() Source {
return FileSource{
Name: "dev",
Format: "hcl",
Data: `
bind_addr = "127.0.0.1"
disable_anonymous_signature = true
disable_keyring_file = true
enable_debug = true
ui_config {
enabled = true
}
log_level = "DEBUG"
server = true
gossip_lan = {
gossip_interval = "100ms"
probe_interval = "100ms"
probe_timeout = "100ms"
suspicion_mult = 3
}
gossip_wan = {
gossip_interval = "100ms"
probe_interval = "100ms"
probe_timeout = "100ms"
suspicion_mult = 3
}
connect = {
enabled = true
}
peering = {
enabled = true
}
performance = {
raft_multiplier = 1
}
ports = {
grpc = 8502
}
`,
}
}
// NonUserSource contains the values the user cannot configure.
// This needs to be merged in the tail.
// TODO: return a LiteralSource (no decoding) instead of a FileSource
func NonUserSource() Source {
return FileSource{
Name: "non-user",
Format: "hcl",
Data: `
check_deregister_interval_min = "1m"
check_reap_interval = "30s"
ae_interval = "1m"
sync_coordinate_rate_target = 64
sync_coordinate_interval_min = "15s"
# SegmentNameLimit is the maximum segment name length.
segment_name_limit = 64
connect = {
# 0s causes the value to be ignored and operate without capping
# the max time before leaf certs can be generated after a roots change.
test_ca_leaf_root_change_spread = "0s"
}
peering = {
# We use peer registration for various testing
test_allow_peer_registrations = false
}
`,
}
}
// versionSource creates a config source for the version parameters.
// This should be merged in the tail since these values are not
// user configurable.
func versionSource(rev, ver, verPre, meta string, buildDate time.Time) Source {
return LiteralSource{
Name: "version",
Config: Config{
Revision: &rev,
Version: &ver,
VersionPrerelease: &verPre,
VersionMetadata: &meta,
BuildDate: &buildDate,
},
}
}
// defaultVersionSource returns the version config source for the embedded
// version numbers.
func defaultVersionSource() Source {
buildDate, _ := time.Parse(time.RFC3339, version.BuildDate) // This has been checked elsewhere
return versionSource(version.GitCommit, version.Version, version.VersionPrerelease, version.VersionMetadata, buildDate)
}
// DefaultConsulSource returns the default configuration for the consul agent.
// This should be merged in the tail since these values are not user configurable.
// TODO: return a LiteralSource (no decoding) instead of a FileSource
func DefaultConsulSource() Source {
cfg := consul.DefaultConfig()
raft := cfg.RaftConfig
return FileSource{
Name: "consul",
Format: "hcl",
Data: `
consul = {
coordinate = {
update_batch_size = ` + strconv.Itoa(cfg.CoordinateUpdateBatchSize) + `
update_max_batches = ` + strconv.Itoa(cfg.CoordinateUpdateMaxBatches) + `
update_period = "` + cfg.CoordinateUpdatePeriod.String() + `"
}
raft = {
election_timeout = "` + raft.ElectionTimeout.String() + `"
heartbeat_timeout = "` + raft.HeartbeatTimeout.String() + `"
leader_lease_timeout = "` + raft.LeaderLeaseTimeout.String() + `"
}
server = {
health_interval = "` + cfg.ServerHealthInterval.String() + `"
}
}
`,
}
}
// DevConsulSource returns the consul agent configuration for the dev mode.
// This should be merged in the tail after the DefaultConsulSource.
func DevConsulSource() Source {
c := Config{}
c.Consul.Coordinate.UpdatePeriod = strPtr("100ms")
c.Consul.Raft.ElectionTimeout = strPtr("52ms")
c.Consul.Raft.HeartbeatTimeout = strPtr("35ms")
c.Consul.Raft.LeaderLeaseTimeout = strPtr("20ms")
c.Consul.Server.HealthInterval = strPtr("10ms")
return LiteralSource{Name: "consul-dev", Config: c}
}
func strPtr(v string) *string {
return &v
}