406 lines
18 KiB
Go
406 lines
18 KiB
Go
package configuration
|
|
|
|
import (
|
|
"fmt"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/containous/flaeg/parse"
|
|
"github.com/containous/traefik-extra-service-fabric"
|
|
"github.com/containous/traefik/acme"
|
|
"github.com/containous/traefik/api"
|
|
"github.com/containous/traefik/log"
|
|
"github.com/containous/traefik/middlewares/tracing"
|
|
"github.com/containous/traefik/middlewares/tracing/datadog"
|
|
"github.com/containous/traefik/middlewares/tracing/jaeger"
|
|
"github.com/containous/traefik/middlewares/tracing/zipkin"
|
|
"github.com/containous/traefik/ping"
|
|
acmeprovider "github.com/containous/traefik/provider/acme"
|
|
"github.com/containous/traefik/provider/boltdb"
|
|
"github.com/containous/traefik/provider/consul"
|
|
"github.com/containous/traefik/provider/consulcatalog"
|
|
"github.com/containous/traefik/provider/docker"
|
|
"github.com/containous/traefik/provider/dynamodb"
|
|
"github.com/containous/traefik/provider/ecs"
|
|
"github.com/containous/traefik/provider/etcd"
|
|
"github.com/containous/traefik/provider/eureka"
|
|
"github.com/containous/traefik/provider/file"
|
|
"github.com/containous/traefik/provider/kubernetes"
|
|
"github.com/containous/traefik/provider/marathon"
|
|
"github.com/containous/traefik/provider/mesos"
|
|
"github.com/containous/traefik/provider/rancher"
|
|
"github.com/containous/traefik/provider/rest"
|
|
"github.com/containous/traefik/provider/zk"
|
|
"github.com/containous/traefik/tls"
|
|
"github.com/containous/traefik/types"
|
|
)
|
|
|
|
const (
|
|
// DefaultInternalEntryPointName the name of the default internal entry point
|
|
DefaultInternalEntryPointName = "traefik"
|
|
|
|
// DefaultHealthCheckInterval is the default health check interval.
|
|
DefaultHealthCheckInterval = 30 * time.Second
|
|
|
|
// DefaultHealthCheckTimeout is the default health check request timeout.
|
|
DefaultHealthCheckTimeout = 5 * time.Second
|
|
|
|
// DefaultDialTimeout when connecting to a backend server.
|
|
DefaultDialTimeout = 30 * time.Second
|
|
|
|
// DefaultIdleTimeout before closing an idle connection.
|
|
DefaultIdleTimeout = 180 * time.Second
|
|
|
|
// DefaultGraceTimeout controls how long Traefik serves pending requests
|
|
// prior to shutting down.
|
|
DefaultGraceTimeout = 10 * time.Second
|
|
|
|
// DefaultAcmeCAServer is the default ACME API endpoint
|
|
DefaultAcmeCAServer = "https://acme-v02.api.letsencrypt.org/directory"
|
|
)
|
|
|
|
// GlobalConfiguration holds global configuration (with providers, etc.).
|
|
// It's populated from the traefik configuration file passed as an argument to the binary.
|
|
type GlobalConfiguration struct {
|
|
LifeCycle *LifeCycle `description:"Timeouts influencing the server life cycle" export:"true"`
|
|
Debug bool `short:"d" description:"Enable debug mode" export:"true"`
|
|
CheckNewVersion bool `description:"Periodically check if a new version has been released" export:"true"`
|
|
SendAnonymousUsage bool `description:"send periodically anonymous usage statistics" export:"true"`
|
|
AccessLog *types.AccessLog `description:"Access log settings" export:"true"`
|
|
TraefikLog *types.TraefikLog `description:"Traefik log settings" export:"true"`
|
|
Tracing *tracing.Tracing `description:"OpenTracing configuration" export:"true"`
|
|
LogLevel string `short:"l" description:"Log level" export:"true"`
|
|
EntryPoints EntryPoints `description:"Entrypoints definition using format: --entryPoints='Name:http Address::8000 Redirect.EntryPoint:https' --entryPoints='Name:https Address::4442 TLS:tests/traefik.crt,tests/traefik.key;prod/traefik.crt,prod/traefik.key'" export:"true"`
|
|
Cluster *types.Cluster
|
|
Constraints types.Constraints `description:"Filter services by constraint, matching with service tags" export:"true"`
|
|
ACME *acme.ACME `description:"Enable ACME (Let's Encrypt): automatic SSL" export:"true"`
|
|
DefaultEntryPoints DefaultEntryPoints `description:"Entrypoints to be used by frontends that do not specify any entrypoint" export:"true"`
|
|
ProvidersThrottleDuration parse.Duration `description:"Backends throttle duration: minimum duration between 2 events from providers before applying a new configuration. It avoids unnecessary reloads if multiples events are sent in a short amount of time." export:"true"`
|
|
MaxIdleConnsPerHost int `description:"If non-zero, controls the maximum idle (keep-alive) to keep per-host. If zero, DefaultMaxIdleConnsPerHost is used" export:"true"`
|
|
InsecureSkipVerify bool `description:"Disable SSL certificate verification" export:"true"`
|
|
RootCAs tls.FilesOrContents `description:"Add cert file for self-signed certificate"`
|
|
Retry *Retry `description:"Enable retry sending request if network error" export:"true"`
|
|
HealthCheck *HealthCheckConfig `description:"Health check parameters" export:"true"`
|
|
RespondingTimeouts *RespondingTimeouts `description:"Timeouts for incoming requests to the Traefik instance" export:"true"`
|
|
ForwardingTimeouts *ForwardingTimeouts `description:"Timeouts for requests forwarded to the backend servers" export:"true"`
|
|
Docker *docker.Provider `description:"Enable Docker backend with default settings" export:"true"`
|
|
File *file.Provider `description:"Enable File backend with default settings" export:"true"`
|
|
Marathon *marathon.Provider `description:"Enable Marathon backend with default settings" export:"true"`
|
|
Consul *consul.Provider `description:"Enable Consul backend with default settings" export:"true"`
|
|
ConsulCatalog *consulcatalog.Provider `description:"Enable Consul catalog backend with default settings" export:"true"`
|
|
Etcd *etcd.Provider `description:"Enable Etcd backend with default settings" export:"true"`
|
|
Zookeeper *zk.Provider `description:"Enable Zookeeper backend with default settings" export:"true"`
|
|
Boltdb *boltdb.Provider `description:"Enable Boltdb backend with default settings" export:"true"`
|
|
Kubernetes *kubernetes.Provider `description:"Enable Kubernetes backend with default settings" export:"true"`
|
|
Mesos *mesos.Provider `description:"Enable Mesos backend with default settings" export:"true"`
|
|
Eureka *eureka.Provider `description:"Enable Eureka backend with default settings" export:"true"`
|
|
ECS *ecs.Provider `description:"Enable ECS backend with default settings" export:"true"`
|
|
Rancher *rancher.Provider `description:"Enable Rancher backend with default settings" export:"true"`
|
|
DynamoDB *dynamodb.Provider `description:"Enable DynamoDB backend with default settings" export:"true"`
|
|
ServiceFabric *servicefabric.Provider `description:"Enable Service Fabric backend with default settings" export:"true"`
|
|
Rest *rest.Provider `description:"Enable Rest backend with default settings" export:"true"`
|
|
API *api.Handler `description:"Enable api/dashboard" export:"true"`
|
|
Metrics *types.Metrics `description:"Enable a metrics exporter" export:"true"`
|
|
Ping *ping.Handler `description:"Enable ping" export:"true"`
|
|
HostResolver *HostResolverConfig `description:"Enable CNAME Flattening" export:"true"`
|
|
}
|
|
|
|
// SetEffectiveConfiguration adds missing configuration parameters derived from existing ones.
|
|
// It also takes care of maintaining backwards compatibility.
|
|
func (gc *GlobalConfiguration) SetEffectiveConfiguration(configFile string) {
|
|
if len(gc.EntryPoints) == 0 {
|
|
gc.EntryPoints = map[string]*EntryPoint{"http": {
|
|
Address: ":80",
|
|
ForwardedHeaders: &ForwardedHeaders{},
|
|
}}
|
|
gc.DefaultEntryPoints = []string{"http"}
|
|
}
|
|
|
|
if (gc.API != nil && gc.API.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(gc.Ping != nil && gc.Ping.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(gc.Metrics != nil && gc.Metrics.Prometheus != nil && gc.Metrics.Prometheus.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(gc.Rest != nil && gc.Rest.EntryPoint == DefaultInternalEntryPointName) {
|
|
if _, ok := gc.EntryPoints[DefaultInternalEntryPointName]; !ok {
|
|
gc.EntryPoints[DefaultInternalEntryPointName] = &EntryPoint{Address: ":8080"}
|
|
}
|
|
}
|
|
|
|
for entryPointName := range gc.EntryPoints {
|
|
entryPoint := gc.EntryPoints[entryPointName]
|
|
// ForwardedHeaders must be remove in the next breaking version
|
|
if entryPoint.ForwardedHeaders == nil {
|
|
entryPoint.ForwardedHeaders = &ForwardedHeaders{}
|
|
}
|
|
}
|
|
|
|
// Make sure LifeCycle isn't nil to spare nil checks elsewhere.
|
|
if gc.LifeCycle == nil {
|
|
gc.LifeCycle = &LifeCycle{}
|
|
}
|
|
|
|
if gc.Rancher != nil {
|
|
// Ensure backwards compatibility for now
|
|
if len(gc.Rancher.AccessKey) > 0 ||
|
|
len(gc.Rancher.Endpoint) > 0 ||
|
|
len(gc.Rancher.SecretKey) > 0 {
|
|
|
|
if gc.Rancher.API == nil {
|
|
gc.Rancher.API = &rancher.APIConfiguration{
|
|
AccessKey: gc.Rancher.AccessKey,
|
|
SecretKey: gc.Rancher.SecretKey,
|
|
Endpoint: gc.Rancher.Endpoint,
|
|
}
|
|
}
|
|
log.Warn("Deprecated configuration found: rancher.[accesskey|secretkey|endpoint]. " +
|
|
"Please use rancher.api.[accesskey|secretkey|endpoint] instead.")
|
|
}
|
|
|
|
if gc.Rancher.Metadata != nil && len(gc.Rancher.Metadata.Prefix) == 0 {
|
|
gc.Rancher.Metadata.Prefix = "latest"
|
|
}
|
|
}
|
|
|
|
if gc.API != nil {
|
|
gc.API.Debug = gc.Debug
|
|
}
|
|
|
|
if gc.File != nil {
|
|
gc.File.TraefikFile = configFile
|
|
}
|
|
|
|
gc.initACMEProvider()
|
|
gc.initTracing()
|
|
}
|
|
|
|
func (gc *GlobalConfiguration) initTracing() {
|
|
if gc.Tracing != nil {
|
|
switch gc.Tracing.Backend {
|
|
case jaeger.Name:
|
|
if gc.Tracing.Jaeger == nil {
|
|
gc.Tracing.Jaeger = &jaeger.Config{
|
|
SamplingServerURL: "http://localhost:5778/sampling",
|
|
SamplingType: "const",
|
|
SamplingParam: 1.0,
|
|
LocalAgentHostPort: "127.0.0.1:6831",
|
|
Propagation: "jaeger",
|
|
Gen128Bit: false,
|
|
}
|
|
}
|
|
if gc.Tracing.Zipkin != nil {
|
|
log.Warn("Zipkin configuration will be ignored")
|
|
gc.Tracing.Zipkin = nil
|
|
}
|
|
if gc.Tracing.DataDog != nil {
|
|
log.Warn("DataDog configuration will be ignored")
|
|
gc.Tracing.DataDog = nil
|
|
}
|
|
case zipkin.Name:
|
|
if gc.Tracing.Zipkin == nil {
|
|
gc.Tracing.Zipkin = &zipkin.Config{
|
|
HTTPEndpoint: "http://localhost:9411/api/v1/spans",
|
|
SameSpan: false,
|
|
ID128Bit: true,
|
|
Debug: false,
|
|
}
|
|
}
|
|
if gc.Tracing.Jaeger != nil {
|
|
log.Warn("Jaeger configuration will be ignored")
|
|
gc.Tracing.Jaeger = nil
|
|
}
|
|
if gc.Tracing.DataDog != nil {
|
|
log.Warn("DataDog configuration will be ignored")
|
|
gc.Tracing.DataDog = nil
|
|
}
|
|
case datadog.Name:
|
|
if gc.Tracing.DataDog == nil {
|
|
gc.Tracing.DataDog = &datadog.Config{
|
|
LocalAgentHostPort: "localhost:8126",
|
|
GlobalTag: "",
|
|
Debug: false,
|
|
}
|
|
}
|
|
if gc.Tracing.Zipkin != nil {
|
|
log.Warn("Zipkin configuration will be ignored")
|
|
gc.Tracing.Zipkin = nil
|
|
}
|
|
if gc.Tracing.Jaeger != nil {
|
|
log.Warn("Jaeger configuration will be ignored")
|
|
gc.Tracing.Jaeger = nil
|
|
}
|
|
default:
|
|
log.Warnf("Unknown tracer %q", gc.Tracing.Backend)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
func (gc *GlobalConfiguration) initACMEProvider() {
|
|
if gc.ACME != nil {
|
|
gc.ACME.CAServer = getSafeACMECAServer(gc.ACME.CAServer)
|
|
|
|
if gc.ACME.DNSChallenge != nil && gc.ACME.HTTPChallenge != nil {
|
|
log.Warn("Unable to use DNS challenge and HTTP challenge at the same time. Fallback to DNS challenge.")
|
|
gc.ACME.HTTPChallenge = nil
|
|
}
|
|
|
|
if gc.ACME.DNSChallenge != nil && gc.ACME.TLSChallenge != nil {
|
|
log.Warn("Unable to use DNS challenge and TLS challenge at the same time. Fallback to DNS challenge.")
|
|
gc.ACME.TLSChallenge = nil
|
|
}
|
|
|
|
if gc.ACME.HTTPChallenge != nil && gc.ACME.TLSChallenge != nil {
|
|
log.Warn("Unable to use HTTP challenge and TLS challenge at the same time. Fallback to TLS challenge.")
|
|
gc.ACME.HTTPChallenge = nil
|
|
}
|
|
|
|
if len(gc.ACME.DNSProvider) > 0 {
|
|
log.Warn("ACME.DNSProvider is deprecated, use ACME.DNSChallenge instead")
|
|
gc.ACME.DNSChallenge = &acmeprovider.DNSChallenge{Provider: gc.ACME.DNSProvider, DelayBeforeCheck: gc.ACME.DelayDontCheckDNS}
|
|
}
|
|
|
|
if gc.ACME.OnDemand {
|
|
log.Warn("ACME.OnDemand is deprecated")
|
|
}
|
|
}
|
|
}
|
|
|
|
// InitACMEProvider create an acme provider from the ACME part of globalConfiguration
|
|
func (gc *GlobalConfiguration) InitACMEProvider() *acmeprovider.Provider {
|
|
if gc.ACME != nil {
|
|
// TODO: Remove when Provider ACME will replace totally ACME
|
|
// If provider file, use Provider ACME instead of ACME
|
|
if gc.Cluster == nil {
|
|
provider := &acmeprovider.Provider{}
|
|
provider.Configuration = &acmeprovider.Configuration{
|
|
KeyType: gc.ACME.KeyType,
|
|
OnHostRule: gc.ACME.OnHostRule,
|
|
OnDemand: gc.ACME.OnDemand,
|
|
Email: gc.ACME.Email,
|
|
Storage: gc.ACME.Storage,
|
|
HTTPChallenge: gc.ACME.HTTPChallenge,
|
|
DNSChallenge: gc.ACME.DNSChallenge,
|
|
TLSChallenge: gc.ACME.TLSChallenge,
|
|
Domains: gc.ACME.Domains,
|
|
ACMELogging: gc.ACME.ACMELogging,
|
|
CAServer: gc.ACME.CAServer,
|
|
EntryPoint: gc.ACME.EntryPoint,
|
|
}
|
|
|
|
store := acmeprovider.NewLocalStore(provider.Storage)
|
|
provider.Store = store
|
|
acme.ConvertToNewFormat(provider.Storage)
|
|
gc.ACME = nil
|
|
return provider
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func getSafeACMECAServer(caServerSrc string) string {
|
|
if len(caServerSrc) == 0 {
|
|
return DefaultAcmeCAServer
|
|
}
|
|
|
|
if strings.HasPrefix(caServerSrc, "https://acme-v01.api.letsencrypt.org") {
|
|
caServer := strings.Replace(caServerSrc, "v01", "v02", 1)
|
|
log.Warnf("The CA server %[1]q refers to a v01 endpoint of the ACME API, please change to %[2]q. Fallback to %[2]q.", caServerSrc, caServer)
|
|
return caServer
|
|
}
|
|
|
|
if strings.HasPrefix(caServerSrc, "https://acme-staging.api.letsencrypt.org") {
|
|
caServer := strings.Replace(caServerSrc, "https://acme-staging.api.letsencrypt.org", "https://acme-staging-v02.api.letsencrypt.org", 1)
|
|
log.Warnf("The CA server %[1]q refers to a v01 endpoint of the ACME API, please change to %[2]q. Fallback to %[2]q.", caServerSrc, caServer)
|
|
return caServer
|
|
}
|
|
|
|
return caServerSrc
|
|
}
|
|
|
|
// ValidateConfiguration validate that configuration is coherent
|
|
func (gc *GlobalConfiguration) ValidateConfiguration() {
|
|
if gc.ACME != nil {
|
|
if _, ok := gc.EntryPoints[gc.ACME.EntryPoint]; !ok {
|
|
log.Fatalf("Unknown entrypoint %q for ACME configuration", gc.ACME.EntryPoint)
|
|
} else {
|
|
if gc.EntryPoints[gc.ACME.EntryPoint].TLS == nil {
|
|
log.Fatalf("Entrypoint %q has no TLS configuration for ACME configuration", gc.ACME.EntryPoint)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// DefaultEntryPoints holds default entry points
|
|
type DefaultEntryPoints []string
|
|
|
|
// String is the method to format the flag's value, part of the flag.Value interface.
|
|
// The String method's output will be used in diagnostics.
|
|
func (dep *DefaultEntryPoints) String() string {
|
|
return strings.Join(*dep, ",")
|
|
}
|
|
|
|
// Set is the method to set the flag value, part of the flag.Value interface.
|
|
// Set's argument is a string to be parsed to set the flag.
|
|
// It's a comma-separated list, so we split it.
|
|
func (dep *DefaultEntryPoints) Set(value string) error {
|
|
entrypoints := strings.Split(value, ",")
|
|
if len(entrypoints) == 0 {
|
|
return fmt.Errorf("bad DefaultEntryPoints format: %s", value)
|
|
}
|
|
for _, entrypoint := range entrypoints {
|
|
*dep = append(*dep, entrypoint)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Get return the EntryPoints map
|
|
func (dep *DefaultEntryPoints) Get() interface{} {
|
|
return *dep
|
|
}
|
|
|
|
// SetValue sets the EntryPoints map with val
|
|
func (dep *DefaultEntryPoints) SetValue(val interface{}) {
|
|
*dep = val.(DefaultEntryPoints)
|
|
}
|
|
|
|
// Type is type of the struct
|
|
func (dep *DefaultEntryPoints) Type() string {
|
|
return "defaultentrypoints"
|
|
}
|
|
|
|
// Retry contains request retry config
|
|
type Retry struct {
|
|
Attempts int `description:"Number of attempts" export:"true"`
|
|
}
|
|
|
|
// HealthCheckConfig contains health check configuration parameters.
|
|
type HealthCheckConfig struct {
|
|
Interval parse.Duration `description:"Default periodicity of enabled health checks" export:"true"`
|
|
Timeout parse.Duration `description:"Default request timeout of enabled health checks" export:"true"`
|
|
}
|
|
|
|
// RespondingTimeouts contains timeout configurations for incoming requests to the Traefik instance.
|
|
type RespondingTimeouts struct {
|
|
ReadTimeout parse.Duration `description:"ReadTimeout is the maximum duration for reading the entire request, including the body. If zero, no timeout is set" export:"true"`
|
|
WriteTimeout parse.Duration `description:"WriteTimeout is the maximum duration before timing out writes of the response. If zero, no timeout is set" export:"true"`
|
|
IdleTimeout parse.Duration `description:"IdleTimeout is the maximum amount duration an idle (keep-alive) connection will remain idle before closing itself. Defaults to 180 seconds. If zero, no timeout is set" export:"true"`
|
|
}
|
|
|
|
// ForwardingTimeouts contains timeout configurations for forwarding requests to the backend servers.
|
|
type ForwardingTimeouts struct {
|
|
DialTimeout parse.Duration `description:"The amount of time to wait until a connection to a backend server can be established. Defaults to 30 seconds. If zero, no timeout exists" export:"true"`
|
|
ResponseHeaderTimeout parse.Duration `description:"The amount of time to wait for a server's response headers after fully writing the request (including its body, if any). If zero, no timeout exists" export:"true"`
|
|
}
|
|
|
|
// LifeCycle contains configurations relevant to the lifecycle (such as the
|
|
// shutdown phase) of Traefik.
|
|
type LifeCycle struct {
|
|
RequestAcceptGraceTimeout parse.Duration `description:"Duration to keep accepting requests before Traefik initiates the graceful shutdown procedure"`
|
|
GraceTimeOut parse.Duration `description:"Duration to give active requests a chance to finish before Traefik stops"`
|
|
}
|
|
|
|
// HostResolverConfig contain configuration for CNAME Flattening
|
|
type HostResolverConfig struct {
|
|
CnameFlattening bool `description:"A flag to enable/disable CNAME flattening" export:"true"`
|
|
ResolvConfig string `description:"resolv.conf used for DNS resolving" export:"true"`
|
|
ResolvDepth int `description:"The maximal depth of DNS recursive resolving" export:"true"`
|
|
}
|