open-consul/agent/config/default.go

282 lines
7.5 KiB
Go

package config
import (
"fmt"
"strconv"
"github.com/hashicorp/consul/agent/checks"
"github.com/hashicorp/consul/agent/consul"
"github.com/hashicorp/consul/version"
"github.com/hashicorp/raft"
)
func DefaultRPCProtocol() (int, error) {
src := DefaultSource()
c, err := Parse(src.Data, src.Format)
if err != nil {
return 0, fmt.Errorf("Error parsing default config: %s", err)
}
if c.RPCProtocol == nil {
return 0, fmt.Errorf("No default RPC protocol set")
}
return *c.RPCProtocol, nil
}
// DefaultSource is the default agent configuration.
// This needs to be merged first in the head.
// todo(fs): The values are sourced from multiple sources.
// todo(fs): IMO, this should be the definitive default for all configurable values
// todo(fs): and whatever is in here should clobber every default value. Hence, no sourcing.
func DefaultSource() Source {
cfg := consul.DefaultConfig()
serfLAN := cfg.SerfLANConfig.MemberlistConfig
serfWAN := cfg.SerfWANConfig.MemberlistConfig
// DEPRECATED (ACL-Legacy-Compat) - when legacy ACL support is removed these defaults
// the acl_* config entries here should be transitioned to their counterparts in the
// acl stanza for now we need to be able to detect the new entries not being set (not
// just set to the defaults here) so that we can use the old entries. So the true
// default still needs to reside in the original config values
return Source{
Name: "default",
Format: "hcl",
Data: `
acl_default_policy = "allow"
acl_down_policy = "extend-cache"
acl_enforce_version_8 = true
acl_ttl = "30s"
acl = {
policy_ttl = "30s"
}
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 + `"
disable_coordinates = false
disable_host_node_id = true
disable_remote_exec = true
domain = "consul."
encrypt_verify_incoming = true
encrypt_verify_outgoing = true
log_level = "INFO"
protocol = 2
retry_interval = "30s"
retry_interval_wan = "30s"
server = false
syslog_facility = "LOCAL0"
tls_min_version = "tls12"
// 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 = {
rpc_rate = -1
rpc_max_burst = 1000
kv_max_value_size = ` + 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
}
telemetry = {
metrics_prefix = "consul"
filter_default = true
}
`,
}
}
// DevSource is the additional default configuration for dev mode.
// This should be merged in the head after the default configuration.
func DevSource() Source {
return Source{
Name: "dev",
Format: "hcl",
Data: `
bind_addr = "127.0.0.1"
disable_anonymous_signature = true
disable_keyring_file = true
enable_debug = true
ui = 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
}
performance = {
raft_multiplier = 1
}
ports = {
grpc = 8502
}
`,
}
}
// NonUserSource contains the values the user cannot configure.
// This needs to be merged in the tail.
func NonUserSource() Source {
return Source{
Name: "non-user",
Format: "hcl",
Data: `
acl = {
disabled_ttl = "120s"
}
check_deregister_interval_min = "1m"
check_reap_interval = "30s"
ae_interval = "1m"
sync_coordinate_rate_target = 64
sync_coordinate_interval_min = "15s"
# segment_limit is the maximum number of network segments that may be declared.
segment_limit = 64
# SegmentNameLimit is the maximum segment name length.
segment_name_limit = 64
`,
}
}
// 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 string) Source {
return Source{
Name: "version",
Format: "hcl",
Data: fmt.Sprintf(`revision = %q version = %q version_prerelease = %q`, rev, ver, verPre),
}
}
// DefaultVersionSource returns the version config source for the embedded
// version numbers.
func DefaultVersionSource() Source {
return VersionSource(version.GitCommit, version.Version, version.VersionPrerelease)
}
// DefaultConsulSource returns the default configuration for the consul agent.
// This should be merged in the tail since these values are not user configurable.
func DefaultConsulSource() Source {
cfg := consul.DefaultConfig()
raft := cfg.RaftConfig
return Source{
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 {
return Source{
Name: "consul-dev",
Format: "hcl",
Data: `
consul = {
coordinate = {
update_period = "100ms"
}
raft = {
election_timeout = "52ms"
heartbeat_timeout = "35ms"
leader_lease_timeout = "20ms"
}
server = {
health_interval = "10ms"
}
}
`,
}
}
func DefaultRuntimeConfig(hcl string) *RuntimeConfig {
b, err := NewBuilder(Flags{HCL: []string{hcl}})
if err != nil {
panic(err)
}
rt, err := b.BuildAndValidate()
if err != nil {
panic(err)
}
return &rt
}