378 lines
16 KiB
Go
378 lines
16 KiB
Go
package static
|
|
|
|
import (
|
|
"errors"
|
|
"strings"
|
|
"time"
|
|
|
|
"github.com/containous/traefik/pkg/log"
|
|
"github.com/containous/traefik/pkg/ping"
|
|
acmeprovider "github.com/containous/traefik/pkg/provider/acme"
|
|
"github.com/containous/traefik/pkg/provider/docker"
|
|
"github.com/containous/traefik/pkg/provider/file"
|
|
"github.com/containous/traefik/pkg/provider/kubernetes/crd"
|
|
"github.com/containous/traefik/pkg/provider/kubernetes/ingress"
|
|
"github.com/containous/traefik/pkg/provider/marathon"
|
|
"github.com/containous/traefik/pkg/provider/rancher"
|
|
"github.com/containous/traefik/pkg/provider/rest"
|
|
"github.com/containous/traefik/pkg/tls"
|
|
"github.com/containous/traefik/pkg/tracing/datadog"
|
|
"github.com/containous/traefik/pkg/tracing/haystack"
|
|
"github.com/containous/traefik/pkg/tracing/instana"
|
|
"github.com/containous/traefik/pkg/tracing/jaeger"
|
|
"github.com/containous/traefik/pkg/tracing/zipkin"
|
|
"github.com/containous/traefik/pkg/types"
|
|
assetfs "github.com/elazarl/go-bindata-assetfs"
|
|
"github.com/go-acme/lego/challenge/dns01"
|
|
jaegercli "github.com/uber/jaeger-client-go"
|
|
)
|
|
|
|
const (
|
|
// DefaultInternalEntryPointName the name of the default internal entry point
|
|
DefaultInternalEntryPointName = "traefik"
|
|
|
|
// DefaultGraceTimeout controls how long Traefik serves pending requests
|
|
// prior to shutting down.
|
|
DefaultGraceTimeout = 10 * time.Second
|
|
|
|
// DefaultIdleTimeout before closing an idle connection.
|
|
DefaultIdleTimeout = 180 * time.Second
|
|
|
|
// DefaultAcmeCAServer is the default ACME API endpoint
|
|
DefaultAcmeCAServer = "https://acme-v02.api.letsencrypt.org/directory"
|
|
)
|
|
|
|
// Configuration is the static configuration
|
|
type Configuration struct {
|
|
Global *Global `description:"Global configuration options" export:"true"`
|
|
|
|
ServersTransport *ServersTransport `description:"Servers default transport." export:"true"`
|
|
EntryPoints EntryPoints `description:"Entry points definition." export:"true"`
|
|
Providers *Providers `description:"Providers configuration." export:"true"`
|
|
|
|
API *API `description:"Enable api/dashboard." export:"true" label:"allowEmpty"`
|
|
Metrics *types.Metrics `description:"Enable a metrics exporter." export:"true"`
|
|
Ping *ping.Handler `description:"Enable ping." export:"true" label:"allowEmpty"`
|
|
// Rest *rest.Provider `description:"Enable Rest backend with default settings" export:"true"`
|
|
|
|
Log *types.TraefikLog `description:"Traefik log settings." export:"true"`
|
|
AccessLog *types.AccessLog `description:"Access log settings." export:"true" label:"allowEmpty"`
|
|
Tracing *Tracing `description:"OpenTracing configuration." export:"true" label:"allowEmpty"`
|
|
|
|
HostResolver *types.HostResolverConfig `description:"Enable CNAME Flattening." export:"true" label:"allowEmpty"`
|
|
|
|
ACME *acmeprovider.Configuration `description:"Enable ACME (Let's Encrypt): automatic SSL." export:"true"`
|
|
}
|
|
|
|
// Global holds the global configuration.
|
|
type Global struct {
|
|
Debug bool `description:"Enable debug mode." export:"true"`
|
|
CheckNewVersion bool `description:"Periodically check if a new version has been released." export:"true"`
|
|
SendAnonymousUsage *bool `description:"Periodically send anonymous usage statistics. If the option is not specified, it will be enabled by default." export:"true"`
|
|
}
|
|
|
|
// ServersTransport options to configure communication between Traefik and the servers
|
|
type ServersTransport struct {
|
|
InsecureSkipVerify bool `description:"Disable SSL certificate verification." export:"true"`
|
|
RootCAs []tls.FileOrContent `description:"Add cert file for self-signed certificate."`
|
|
MaxIdleConnsPerHost int `description:"If non-zero, controls the maximum idle (keep-alive) to keep per-host. If zero, DefaultMaxIdleConnsPerHost is used" export:"true"`
|
|
ForwardingTimeouts *ForwardingTimeouts `description:"Timeouts for requests forwarded to the backend servers." export:"true"`
|
|
}
|
|
|
|
// API holds the API configuration
|
|
type API struct {
|
|
EntryPoint string `description:"EntryPoint." export:"true"`
|
|
Dashboard bool `description:"Activate dashboard." export:"true"`
|
|
Statistics *types.Statistics `description:"Enable more detailed statistics." export:"true" label:"allowEmpty"`
|
|
Middlewares []string `description:"Middleware list." export:"true"`
|
|
DashboardAssets *assetfs.AssetFS `json:"-" label:"-"`
|
|
}
|
|
|
|
// SetDefaults sets the default values.
|
|
func (a *API) SetDefaults() {
|
|
a.EntryPoint = "traefik"
|
|
a.Dashboard = true
|
|
}
|
|
|
|
// RespondingTimeouts contains timeout configurations for incoming requests to the Traefik instance.
|
|
type RespondingTimeouts struct {
|
|
ReadTimeout types.Duration `description:"ReadTimeout is the maximum duration for reading the entire request, including the body. If zero, no timeout is set." export:"true"`
|
|
WriteTimeout types.Duration `description:"WriteTimeout is the maximum duration before timing out writes of the response. If zero, no timeout is set." export:"true"`
|
|
IdleTimeout types.Duration `description:"IdleTimeout is the maximum amount duration an idle (keep-alive) connection will remain idle before closing itself. If zero, no timeout is set." export:"true"`
|
|
}
|
|
|
|
// SetDefaults sets the default values.
|
|
func (a *RespondingTimeouts) SetDefaults() {
|
|
a.IdleTimeout = types.Duration(DefaultIdleTimeout)
|
|
}
|
|
|
|
// ForwardingTimeouts contains timeout configurations for forwarding requests to the backend servers.
|
|
type ForwardingTimeouts struct {
|
|
DialTimeout types.Duration `description:"The amount of time to wait until a connection to a backend server can be established. If zero, no timeout exists." export:"true"`
|
|
ResponseHeaderTimeout types.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"`
|
|
}
|
|
|
|
// SetDefaults sets the default values.
|
|
func (f *ForwardingTimeouts) SetDefaults() {
|
|
f.DialTimeout = types.Duration(30 * time.Second)
|
|
}
|
|
|
|
// LifeCycle contains configurations relevant to the lifecycle (such as the shutdown phase) of Traefik.
|
|
type LifeCycle struct {
|
|
RequestAcceptGraceTimeout types.Duration `description:"Duration to keep accepting requests before Traefik initiates the graceful shutdown procedure."`
|
|
GraceTimeOut types.Duration `description:"Duration to give active requests a chance to finish before Traefik stops."`
|
|
}
|
|
|
|
// SetDefaults sets the default values.
|
|
func (a *LifeCycle) SetDefaults() {
|
|
a.GraceTimeOut = types.Duration(DefaultGraceTimeout)
|
|
}
|
|
|
|
// Tracing holds the tracing configuration.
|
|
type Tracing struct {
|
|
Backend string `description:"Selects the tracking backend ('jaeger','zipkin','datadog','instana')." export:"true"`
|
|
ServiceName string `description:"Set the name for this service." export:"true"`
|
|
SpanNameLimit int `description:"Set the maximum character limit for Span names (default 0 = no limit)." export:"true"`
|
|
Jaeger *jaeger.Config `description:"Settings for jaeger." label:"allowEmpty"`
|
|
Zipkin *zipkin.Config `description:"Settings for zipkin." label:"allowEmpty"`
|
|
DataDog *datadog.Config `description:"Settings for DataDog." label:"allowEmpty"`
|
|
Instana *instana.Config `description:"Settings for Instana." label:"allowEmpty"`
|
|
Haystack *haystack.Config `description:"Settings for Haystack." label:"allowEmpty"`
|
|
}
|
|
|
|
// SetDefaults sets the default values.
|
|
func (t *Tracing) SetDefaults() {
|
|
t.Backend = "jaeger"
|
|
t.ServiceName = "traefik"
|
|
t.SpanNameLimit = 0
|
|
}
|
|
|
|
// Providers contains providers configuration
|
|
type Providers struct {
|
|
ProvidersThrottleDuration types.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"`
|
|
Docker *docker.Provider `description:"Enable Docker backend with default settings." export:"true" label:"allowEmpty"`
|
|
File *file.Provider `description:"Enable File backend with default settings." export:"true" label:"allowEmpty"`
|
|
Marathon *marathon.Provider `description:"Enable Marathon backend with default settings." export:"true" label:"allowEmpty"`
|
|
Kubernetes *ingress.Provider `description:"Enable Kubernetes backend with default settings." export:"true" label:"allowEmpty"`
|
|
KubernetesCRD *crd.Provider `description:"Enable Kubernetes backend with default settings." export:"true" label:"allowEmpty"`
|
|
Rest *rest.Provider `description:"Enable Rest backend with default settings." export:"true" label:"allowEmpty"`
|
|
Rancher *rancher.Provider `description:"Enable Rancher backend with default settings." export:"true" label:"allowEmpty"`
|
|
}
|
|
|
|
// SetEffectiveConfiguration adds missing configuration parameters derived from existing ones.
|
|
// It also takes care of maintaining backwards compatibility.
|
|
func (c *Configuration) SetEffectiveConfiguration(configFile string) {
|
|
if len(c.EntryPoints) == 0 {
|
|
ep := &EntryPoint{Address: ":80"}
|
|
ep.SetDefaults()
|
|
c.EntryPoints = EntryPoints{
|
|
"http": ep,
|
|
}
|
|
}
|
|
|
|
if (c.API != nil && c.API.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(c.Ping != nil && c.Ping.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(c.Metrics != nil && c.Metrics.Prometheus != nil && c.Metrics.Prometheus.EntryPoint == DefaultInternalEntryPointName) ||
|
|
(c.Providers.Rest != nil && c.Providers.Rest.EntryPoint == DefaultInternalEntryPointName) {
|
|
if _, ok := c.EntryPoints[DefaultInternalEntryPointName]; !ok {
|
|
ep := &EntryPoint{Address: ":8080"}
|
|
ep.SetDefaults()
|
|
c.EntryPoints[DefaultInternalEntryPointName] = ep
|
|
}
|
|
}
|
|
|
|
if c.Providers.Docker != nil {
|
|
if c.Providers.Docker.SwarmModeRefreshSeconds <= 0 {
|
|
c.Providers.Docker.SwarmModeRefreshSeconds = types.Duration(15 * time.Second)
|
|
}
|
|
}
|
|
|
|
if c.Providers.File != nil {
|
|
c.Providers.File.TraefikFile = configFile
|
|
}
|
|
|
|
if c.Providers.Rancher != nil {
|
|
if c.Providers.Rancher.RefreshSeconds <= 0 {
|
|
c.Providers.Rancher.RefreshSeconds = 15
|
|
}
|
|
}
|
|
|
|
c.initACMEProvider()
|
|
c.initTracing()
|
|
}
|
|
|
|
func (c *Configuration) initTracing() {
|
|
if c.Tracing != nil {
|
|
switch c.Tracing.Backend {
|
|
case jaeger.Name:
|
|
if c.Tracing.Jaeger == nil {
|
|
c.Tracing.Jaeger = &jaeger.Config{
|
|
SamplingServerURL: "http://localhost:5778/sampling",
|
|
SamplingType: "const",
|
|
SamplingParam: 1.0,
|
|
LocalAgentHostPort: "127.0.0.1:6831",
|
|
Propagation: "jaeger",
|
|
Gen128Bit: false,
|
|
TraceContextHeaderName: jaegercli.TraceContextHeaderName,
|
|
}
|
|
}
|
|
if c.Tracing.Zipkin != nil {
|
|
log.Warn("Zipkin configuration will be ignored")
|
|
c.Tracing.Zipkin = nil
|
|
}
|
|
if c.Tracing.DataDog != nil {
|
|
log.Warn("DataDog configuration will be ignored")
|
|
c.Tracing.DataDog = nil
|
|
}
|
|
if c.Tracing.Instana != nil {
|
|
log.Warn("Instana configuration will be ignored")
|
|
c.Tracing.Instana = nil
|
|
}
|
|
case zipkin.Name:
|
|
if c.Tracing.Zipkin == nil {
|
|
c.Tracing.Zipkin = &zipkin.Config{
|
|
HTTPEndpoint: "http://localhost:9411/api/v1/spans",
|
|
SameSpan: false,
|
|
ID128Bit: true,
|
|
Debug: false,
|
|
SampleRate: 1.0,
|
|
}
|
|
}
|
|
if c.Tracing.Jaeger != nil {
|
|
log.Warn("Jaeger configuration will be ignored")
|
|
c.Tracing.Jaeger = nil
|
|
}
|
|
if c.Tracing.DataDog != nil {
|
|
log.Warn("DataDog configuration will be ignored")
|
|
c.Tracing.DataDog = nil
|
|
}
|
|
if c.Tracing.Instana != nil {
|
|
log.Warn("Instana configuration will be ignored")
|
|
c.Tracing.Instana = nil
|
|
}
|
|
case datadog.Name:
|
|
if c.Tracing.DataDog == nil {
|
|
c.Tracing.DataDog = &datadog.Config{
|
|
LocalAgentHostPort: "localhost:8126",
|
|
GlobalTag: "",
|
|
Debug: false,
|
|
}
|
|
}
|
|
if c.Tracing.Zipkin != nil {
|
|
log.Warn("Zipkin configuration will be ignored")
|
|
c.Tracing.Zipkin = nil
|
|
}
|
|
if c.Tracing.Jaeger != nil {
|
|
log.Warn("Jaeger configuration will be ignored")
|
|
c.Tracing.Jaeger = nil
|
|
}
|
|
if c.Tracing.Instana != nil {
|
|
log.Warn("Instana configuration will be ignored")
|
|
c.Tracing.Instana = nil
|
|
}
|
|
case instana.Name:
|
|
if c.Tracing.Instana == nil {
|
|
c.Tracing.Instana = &instana.Config{
|
|
LocalAgentHost: "localhost",
|
|
LocalAgentPort: 42699,
|
|
LogLevel: "info",
|
|
}
|
|
}
|
|
if c.Tracing.Zipkin != nil {
|
|
log.Warn("Zipkin configuration will be ignored")
|
|
c.Tracing.Zipkin = nil
|
|
}
|
|
if c.Tracing.Jaeger != nil {
|
|
log.Warn("Jaeger configuration will be ignored")
|
|
c.Tracing.Jaeger = nil
|
|
}
|
|
if c.Tracing.DataDog != nil {
|
|
log.Warn("DataDog configuration will be ignored")
|
|
c.Tracing.DataDog = nil
|
|
}
|
|
default:
|
|
log.Warnf("Unknown tracer %q", c.Tracing.Backend)
|
|
return
|
|
}
|
|
}
|
|
}
|
|
|
|
// FIXME handle on new configuration ACME struct
|
|
func (c *Configuration) initACMEProvider() {
|
|
if c.ACME != nil {
|
|
c.ACME.CAServer = getSafeACMECAServer(c.ACME.CAServer)
|
|
|
|
if c.ACME.DNSChallenge != nil && c.ACME.HTTPChallenge != nil {
|
|
log.Warn("Unable to use DNS challenge and HTTP challenge at the same time. Fallback to DNS challenge.")
|
|
c.ACME.HTTPChallenge = nil
|
|
}
|
|
|
|
if c.ACME.DNSChallenge != nil && c.ACME.TLSChallenge != nil {
|
|
log.Warn("Unable to use DNS challenge and TLS challenge at the same time. Fallback to DNS challenge.")
|
|
c.ACME.TLSChallenge = nil
|
|
}
|
|
|
|
if c.ACME.HTTPChallenge != nil && c.ACME.TLSChallenge != nil {
|
|
log.Warn("Unable to use HTTP challenge and TLS challenge at the same time. Fallback to TLS challenge.")
|
|
c.ACME.HTTPChallenge = nil
|
|
}
|
|
}
|
|
}
|
|
|
|
// InitACMEProvider create an acme provider from the ACME part of globalConfiguration
|
|
func (c *Configuration) InitACMEProvider() (*acmeprovider.Provider, error) {
|
|
if c.ACME != nil {
|
|
if len(c.ACME.Storage) == 0 {
|
|
return nil, errors.New("unable to initialize ACME provider with no storage location for the certificates")
|
|
}
|
|
return &acmeprovider.Provider{
|
|
Configuration: c.ACME,
|
|
}, nil
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
// ValidateConfiguration validate that configuration is coherent
|
|
func (c *Configuration) ValidateConfiguration() {
|
|
if c.ACME != nil {
|
|
for _, domain := range c.ACME.Domains {
|
|
if domain.Main != dns01.UnFqdn(domain.Main) {
|
|
log.Warnf("FQDN detected, please remove the trailing dot: %s", domain.Main)
|
|
}
|
|
for _, san := range domain.SANs {
|
|
if san != dns01.UnFqdn(san) {
|
|
log.Warnf("FQDN detected, please remove the trailing dot: %s", san)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// FIXME Validate store config?
|
|
// if c.ACME != nil {
|
|
// if _, ok := c.EntryPoints[c.ACME.EntryPoint]; !ok {
|
|
// log.Fatalf("Unknown entrypoint %q for ACME configuration", c.ACME.EntryPoint)
|
|
// }
|
|
// else if c.EntryPoints[c.ACME.EntryPoint].TLS == nil {
|
|
// log.Fatalf("Entrypoint %q has no TLS configuration for ACME configuration", c.ACME.EntryPoint)
|
|
// }
|
|
// }
|
|
}
|
|
|
|
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
|
|
}
|