New static configuration loading system.

Co-authored-by: Mathieu Lonjaret <mathieu.lonjaret@gmail.com>

pkg/config/file/fixtures/sample.toml

@@ -0,0 +1,539 @@
+[Global]
+  Debug = true
+  CheckNewVersion = true
+  SendAnonymousUsage = true
+
+[ServersTransport]
+  InsecureSkipVerify = true
+  RootCAs = ["foobar", "foobar"]
+  MaxIdleConnsPerHost = 42
+  [ServersTransport.ForwardingTimeouts]
+    DialTimeout = 42
+    ResponseHeaderTimeout = 42
+
+[EntryPoints]
+
+  [EntryPoints.EntryPoint0]
+    Address = "foobar"
+    [EntryPoints.EntryPoint0.Transport]
+      [EntryPoints.EntryPoint0.Transport.LifeCycle]
+        RequestAcceptGraceTimeout = 42
+        GraceTimeOut = 42
+      [EntryPoints.EntryPoint0.Transport.RespondingTimeouts]
+        ReadTimeout = 42
+        WriteTimeout = 42
+        IdleTimeout = 42
+    [EntryPoints.EntryPoint0.ProxyProtocol]
+      Insecure = true
+      TrustedIPs = ["foobar", "foobar"]
+    [EntryPoints.EntryPoint0.ForwardedHeaders]
+      Insecure = true
+      TrustedIPs = ["foobar", "foobar"]
+
+[Providers]
+  ProvidersThrottleDuration = 42
+
+  [Providers.Docker]
+    Watch = true
+    Endpoint = "foobar"
+    DefaultRule = "foobar"
+    ExposedByDefault = true
+    UseBindPortIP = true
+    SwarmMode = true
+    Network = "foobar"
+    SwarmModeRefreshSeconds = 42
+
+    [[Providers.Docker.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+    [[Providers.Docker.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+    [Providers.Docker.TLS]
+      CA = "foobar"
+      CAOptional = true
+      Cert = "foobar"
+      Key = "foobar"
+      InsecureSkipVerify = true
+
+  [Providers.File]
+    Directory = "foobar"
+    Watch = true
+    Filename = "foobar"
+    DebugLogGeneratedTemplate = true
+    TraefikFile = "foobar"
+
+  [Providers.Marathon]
+    Trace = true
+    Watch = true
+    Endpoint = "foobar"
+    DefaultRule = "foobar"
+    ExposedByDefault = true
+    DCOSToken = "foobar"
+    FilterMarathonConstraints = true
+    DialerTimeout = 42
+    ResponseHeaderTimeout = 42
+    TLSHandshakeTimeout = 42
+    KeepAlive = 42
+    ForceTaskHostname = true
+    RespectReadinessChecks = true
+
+    [[Providers.Marathon.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+    [[Providers.Marathon.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+    [Providers.Marathon.TLS]
+      CA = "foobar"
+      CAOptional = true
+      Cert = "foobar"
+      Key = "foobar"
+      InsecureSkipVerify = true
+    [Providers.Marathon.Basic]
+      HTTPBasicAuthUser = "foobar"
+      HTTPBasicPassword = "foobar"
+
+  [Providers.Kubernetes]
+    Endpoint = "foobar"
+    Token = "foobar"
+    CertAuthFilePath = "foobar"
+    DisablePassHostHeaders = true
+    Namespaces = ["foobar", "foobar"]
+    LabelSelector = "foobar"
+    IngressClass = "foobar"
+    [Providers.Kubernetes.IngressEndpoint]
+      IP = "foobar"
+      Hostname = "foobar"
+      PublishedService = "foobar"
+
+  [Providers.KubernetesCRD]
+    Endpoint = "foobar"
+    Token = "foobar"
+    CertAuthFilePath = "foobar"
+    DisablePassHostHeaders = true
+    Namespaces = ["foobar", "foobar"]
+    LabelSelector = "foobar"
+    IngressClass = "foobar"
+
+  [Providers.Rest]
+    EntryPoint = "foobar"
+
+  [Providers.Rancher]
+    Watch = true
+    DefaultRule = "foobar"
+    ExposedByDefault = true
+    EnableServiceHealthFilter = true
+    RefreshSeconds = 42
+    IntervalPoll = true
+    Prefix = "foobar"
+
+    [[Providers.Rancher.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+    [[Providers.Rancher.Constraints]]
+      Key = "foobar"
+      MustMatch = true
+      Value = "foobar"
+
+[API]
+  EntryPoint = "foobar"
+  Dashboard = true
+  Middlewares = ["foobar", "foobar"]
+  [API.Statistics]
+    RecentErrors = 42
+
+[Metrics]
+
+  [Metrics.Prometheus]
+    Buckets = [42.0, 42.0]
+    EntryPoint = "foobar"
+    Middlewares = ["foobar", "foobar"]
+
+  [Metrics.Datadog]
+    Address = "foobar"
+    PushInterval = "10s"
+
+  [Metrics.StatsD]
+    Address = "foobar"
+    PushInterval = "10s"
+
+  [Metrics.InfluxDB]
+    Address = "foobar"
+    Protocol = "foobar"
+    PushInterval = "10s"
+    Database = "foobar"
+    RetentionPolicy = "foobar"
+    Username = "foobar"
+    Password = "foobar"
+
+[Ping]
+  EntryPoint = "foobar"
+  Middlewares = ["foobar", "foobar"]
+
+[Log]
+  Level = "foobar"
+  FilePath = "foobar"
+  Format = "foobar"
+
+[AccessLog]
+  FilePath = "foobar"
+  Format = "foobar"
+  BufferingSize = 42
+  [AccessLog.Filters]
+    StatusCodes = ["foobar", "foobar"]
+    RetryAttempts = true
+    MinDuration = 42
+  [AccessLog.Fields]
+    DefaultMode = "foobar"
+    [AccessLog.Fields.Names]
+      name0 = "foobar"
+      name1 = "foobar"
+    [AccessLog.Fields.Headers]
+      DefaultMode = "foobar"
+      [AccessLog.Fields.Headers.Names]
+        name0 = "foobar"
+        name1 = "foobar"
+
+[Tracing]
+  Backend = "foobar"
+  ServiceName = "foobar"
+  SpanNameLimit = 42
+
+  [Tracing.Jaeger]
+    SamplingServerURL = "foobar"
+    SamplingType = "foobar"
+    SamplingParam = 42.0
+    LocalAgentHostPort = "foobar"
+    Gen128Bit = true
+    Propagation = "foobar"
+    TraceContextHeaderName = "foobar"
+
+  [Tracing.Zipkin]
+    HTTPEndpoint = "foobar"
+    SameSpan = true
+    ID128Bit = true
+    Debug = true
+    SampleRate = 42.0
+
+  [Tracing.DataDog]
+    LocalAgentHostPort = "foobar"
+    GlobalTag = "foobar"
+    Debug = true
+    PrioritySampling = true
+    TraceIDHeaderName = "foobar"
+    ParentIDHeaderName = "foobar"
+    SamplingPriorityHeaderName = "foobar"
+    BagagePrefixHeaderName = "foobar"
+
+  [Tracing.Instana]
+    LocalAgentHost = "foobar"
+    LocalAgentPort = 42
+    LogLevel = "foobar"
+
+[HostResolver]
+  CnameFlattening = true
+  ResolvConfig = "foobar"
+  ResolvDepth = 42
+
+[ACME]
+  Email = "foobar"
+  ACMELogging = true
+  CAServer = "foobar"
+  Storage = "foobar"
+  EntryPoint = "foobar"
+  KeyType = "foobar"
+  OnHostRule = true
+
+  [ACME.DNSChallenge]
+    Provider = "foobar"
+    DelayBeforeCheck = 42
+    Resolvers = ["foobar", "foobar"]
+    DisablePropagationCheck = true
+
+  [ACME.HTTPChallenge]
+    EntryPoint = "foobar"
+
+  [ACME.TLSChallenge]
+
+  [[ACME.Domains]]
+    Main = "foobar"
+    SANs = ["foobar", "foobar"]
+
+  [[ACME.Domains]]
+    Main = "foobar"
+    SANs = ["foobar", "foobar"]
+
+#### Dynamic configuration
+
+[HTTP]
+
+  [HTTP.Routers]
+
+    [HTTP.Routers.Router0]
+      EntryPoints = ["foobar", "foobar"]
+      Middlewares = ["foobar", "foobar"]
+      Service = "foobar"
+      Rule = "foobar"
+      priority = 42
+      [HTTP.Routers.Router0.tls]
+
+  [HTTP.Middlewares]
+
+      [HTTP.Middlewares.Middleware0.AddPrefix]
+        Prefix = "foobar"
+
+      [HTTP.Middlewares.Middleware1.StripPrefix]
+        Prefixes = ["foobar", "foobar"]
+
+      [HTTP.Middlewares.Middleware2.StripPrefixRegex]
+        Regex = ["foobar", "foobar"]
+
+      [HTTP.Middlewares.Middleware3.ReplacePath]
+        Path = "foobar"
+
+      [HTTP.Middlewares.Middleware4.ReplacePathRegex]
+        Regex = "foobar"
+        Replacement = "foobar"
+
+      [HTTP.Middlewares.Middleware5.Chain]
+        Middlewares = ["foobar", "foobar"]
+
+      [HTTP.Middlewares.Middleware6.IPWhiteList]
+        SourceRange = ["foobar", "foobar"]
+
+        [HTTP.Middlewares.Middleware7.IPWhiteList.IPStrategy]
+          Depth = 42
+          ExcludedIPs = ["foobar", "foobar"]
+
+      [HTTP.Middlewares.Middleware8.Headers]
+        AccessControlAllowCredentials = true
+        AccessControlAllowHeaders = ["foobar", "foobar"]
+        AccessControlAllowMethods = ["foobar", "foobar"]
+        AccessControlAllowOrigin = "foobar"
+        AccessControlExposeHeaders = ["foobar", "foobar"]
+        AccessControlMaxAge = 42
+        AddVaryHeader = true
+        AllowedHosts = ["foobar", "foobar"]
+        HostsProxyHeaders = ["foobar", "foobar"]
+        SSLRedirect = true
+        SSLTemporaryRedirect = true
+        SSLHost = "foobar"
+        SSLForceHost = true
+        STSSeconds = 42
+        STSIncludeSubdomains = true
+        STSPreload = true
+        ForceSTSHeader = true
+        FrameDeny = true
+        CustomFrameOptionsValue = "foobar"
+        ContentTypeNosniff = true
+        BrowserXSSFilter = true
+        CustomBrowserXSSValue = "foobar"
+        ContentSecurityPolicy = "foobar"
+        PublicKey = "foobar"
+        ReferrerPolicy = "foobar"
+        IsDevelopment = true
+        [HTTP.Middlewares.Middleware8.Headers.CustomRequestHeaders]
+          name0 = "foobar"
+          name1 = "foobar"
+        [HTTP.Middlewares.Middleware8.Headers.CustomResponseHeaders]
+          name0 = "foobar"
+          name1 = "foobar"
+        [HTTP.Middlewares.Middleware8.Headers.SSLProxyHeaders]
+          name0 = "foobar"
+          name1 = "foobar"
+
+      [HTTP.Middlewares.Middleware9.Errors]
+        Status = ["foobar", "foobar"]
+        Service = "foobar"
+        Query = "foobar"
+
+      [HTTP.Middlewares.Middleware10.RateLimit]
+        ExtractorFunc = "foobar"
+        [HTTP.Middlewares.Middleware10.RateLimit.RateSet]
+          [HTTP.Middlewares.Middleware10.RateLimit.RateSet.Rate0]
+            Period = 42
+            Average = 42
+            Burst = 42
+          [HTTP.Middlewares.Middleware10.RateLimit.RateSet.Rate1]
+            Period = 42
+            Average = 42
+            Burst = 42
+
+      [HTTP.Middlewares.Middleware11.RedirectRegex]
+        Regex = "foobar"
+        Replacement = "foobar"
+        Permanent = true
+
+      [HTTP.Middlewares.Middleware12.RedirectScheme]
+        Scheme = "foobar"
+        Port = "foobar"
+        Permanent = true
+
+      [HTTP.Middlewares.Middleware13.BasicAuth]
+        Users = ["foobar", "foobar"]
+        UsersFile = "foobar"
+        Realm = "foobar"
+        RemoveHeader = true
+        HeaderField = "foobar"
+
+      [HTTP.Middlewares.Middleware14.DigestAuth]
+        Users = ["foobar", "foobar"]
+        UsersFile = "foobar"
+        RemoveHeader = true
+        Realm = "foobar"
+        HeaderField = "foobar"
+
+      [HTTP.Middlewares.Middleware15.ForwardAuth]
+        Address = "foobar"
+        TrustForwardHeader = true
+        AuthResponseHeaders = ["foobar", "foobar"]
+        [HTTP.Middlewares.Middleware15.ForwardAuth.TLS]
+          CA = "foobar"
+          CAOptional = true
+          Cert = "foobar"
+          Key = "foobar"
+          InsecureSkipVerify = true
+
+      [HTTP.Middlewares.Middleware16.MaxConn]
+        Amount = 42
+        ExtractorFunc = "foobar"
+
+      [HTTP.Middlewares.Middleware17.Buffering]
+        MaxRequestBodyBytes = 42
+        MemRequestBodyBytes = 42
+        MaxResponseBodyBytes = 42
+        MemResponseBodyBytes = 42
+        RetryExpression = "foobar"
+
+      [HTTP.Middlewares.Middleware18.CircuitBreaker]
+        Expression = "foobar"
+
+      [HTTP.Middlewares.Middleware19.Compress]
+
+      [HTTP.Middlewares.Middleware20.PassTLSClientCert]
+        PEM = true
+        [HTTP.Middlewares.Middleware20.PassTLSClientCert.Info]
+          NotAfter = true
+          NotBefore = true
+          Sans = true
+          [HTTP.Middlewares.Middleware20.PassTLSClientCert.Info.Subject]
+            Country = true
+            Province = true
+            Locality = true
+            Organization = true
+            CommonName = true
+            SerialNumber = true
+            DomainComponent = true
+          [HTTP.Middlewares.Middleware20.PassTLSClientCert.Info.Issuer]
+            Country = true
+            Province = true
+            Locality = true
+            Organization = true
+            CommonName = true
+            SerialNumber = true
+            DomainComponent = true
+
+      [HTTP.Middlewares.Middleware21.Retry]
+        Attempts = 42
+
+  [HTTP.Services]
+    [HTTP.Services.Service0]
+      [HTTP.Services.Service0.LoadBalancer]
+        Method = "foobar"
+        PassHostHeader = true
+
+        [[HTTP.Services.Service0.LoadBalancer.Servers]]
+          URL = "foobar"
+
+        [HTTP.Services.Service0.LoadBalancer.Stickiness]
+          CookieName = "foobar"
+
+        [[HTTP.Services.Service0.LoadBalancer.Servers]]
+          URL = "foobar"
+
+        [HTTP.Services.Service0.LoadBalancer.HealthCheck]
+          Scheme = "foobar"
+          Path = "foobar"
+          Port = 42
+          Interval = "foobar"
+          Timeout = "foobar"
+          Hostname = "foobar"
+          [HTTP.Services.Service0.LoadBalancer.HealthCheck.Headers]
+            name0 = "foobar"
+            name1 = "foobar"
+        [HTTP.Services.Service0.LoadBalancer.ResponseForwarding]
+          FlushInterval = "foobar"
+
+[TCP]
+
+  [TCP.Routers]
+
+    [TCP.Routers.TCPRouter0]
+      EntryPoints = ["foobar", "foobar"]
+      Service = "foobar"
+      Rule = "foobar"
+      [TCP.Routers.TCPRouter0.tls]
+        passthrough = true
+
+  [TCP.Services]
+
+    [TCP.Services.TCPService0]
+      [TCP.Services.TCPService0.LoadBalancer]
+        Method = "foobar"
+
+        [[TCP.Services.TCPService0.LoadBalancer.Servers]]
+          Address = "foobar"
+
+        [[TCP.Services.TCPService0.LoadBalancer.Servers]]
+          Address = "foobar"
+
+[[TLS]]
+  Stores = ["foobar", "foobar"]
+  [TLS.Certificate]
+    CertFile = "foobar"
+    KeyFile = "foobar"
+
+[[TLS]]
+  Stores = ["foobar", "foobar"]
+  [TLS.Certificate]
+    CertFile = "foobar"
+    KeyFile = "foobar"
+
+[TLSOptions]
+
+  [TLSOptions.TLS0]
+    MinVersion = "foobar"
+    CipherSuites = ["foobar", "foobar"]
+    SniStrict = true
+    [TLSOptions.TLS0.ClientCA]
+      Files = ["foobar", "foobar"]
+      Optional = true
+  [TLSOptions.TLS1]
+    MinVersion = "foobar"
+    CipherSuites = ["foobar", "foobar"]
+    SniStrict = true
+    [TLSOptions.TLS1.ClientCA]
+      Files = ["foobar", "foobar"]
+      Optional = true
+
+[TLSStores]
+
+  [TLSStores.Store0]
+    [TLSStores.Store0.DefaultCertificate]
+      CertFile = "foobar"
+      KeyFile = "foobar"
+  [TLSStores.Store1]
+    [TLSStores.Store1.DefaultCertificate]
+      CertFile = "foobar"
+      KeyFile = "foobar"

pkg/config/file/fixtures/sample.yml

@@ -0,0 +1,257 @@
+Global:
+  Debug: true
+  CheckNewVersion: true
+  SendAnonymousUsage: true
+ServersTransport:
+  InsecureSkipVerify: true
+  RootCAs:
+    - foobar
+    - foobar
+  MaxIdleConnsPerHost: 42
+  ForwardingTimeouts:
+    DialTimeout: 42
+    ResponseHeaderTimeout: 42
+EntryPoints:
+  EntryPoint0:
+    Address: foobar
+    Transport:
+      LifeCycle:
+        RequestAcceptGraceTimeout: 42
+        GraceTimeOut: 42
+      RespondingTimeouts:
+        ReadTimeout: 42
+        WriteTimeout: 42
+        IdleTimeout: 42
+    ProxyProtocol:
+      Insecure: true
+      TrustedIPs:
+        - foobar
+        - foobar
+    ForwardedHeaders:
+      Insecure: true
+      TrustedIPs:
+        - foobar
+        - foobar
+Providers:
+  ProvidersThrottleDuration: 42
+  Docker:
+    Watch: true
+    Endpoint: foobar
+    DefaultRule: foobar
+    ExposedByDefault: true
+    UseBindPortIP: true
+    SwarmMode: true
+    Network: foobar
+    SwarmModeRefreshSeconds: 42
+    Constraints:
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+    TLS:
+      CA: foobar
+      CAOptional: true
+      Cert: foobar
+      Key: foobar
+      InsecureSkipVerify: true
+  File:
+    Directory: foobar
+    Watch: true
+    Filename: foobar
+    DebugLogGeneratedTemplate: true
+    TraefikFile: foobar
+  Marathon:
+    Trace: true
+    Watch: true
+    Endpoint: foobar
+    DefaultRule: foobar
+    ExposedByDefault: true
+    DCOSToken: foobar
+    FilterMarathonConstraints: true
+    DialerTimeout: 42
+    ResponseHeaderTimeout: 42
+    TLSHandshakeTimeout: 42
+    KeepAlive: 42
+    ForceTaskHostname: true
+    RespectReadinessChecks: true
+    Constraints:
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+    TLS:
+      CA: foobar
+      CAOptional: true
+      Cert: foobar
+      Key: foobar
+      InsecureSkipVerify: true
+    Basic:
+      HTTPBasicAuthUser: foobar
+      HTTPBasicPassword: foobar
+  Kubernetes:
+    Endpoint: foobar
+    Token: foobar
+    CertAuthFilePath: foobar
+    DisablePassHostHeaders: true
+    Namespaces:
+      - foobar
+      - foobar
+    LabelSelector: foobar
+    IngressClass: foobar
+    IngressEndpoint:
+      IP: foobar
+      Hostname: foobar
+      PublishedService: foobar
+  KubernetesCRD:
+    Endpoint: foobar
+    Token: foobar
+    CertAuthFilePath: foobar
+    DisablePassHostHeaders: true
+    Namespaces:
+      - foobar
+      - foobar
+    LabelSelector: foobar
+    IngressClass: foobar
+  Rest:
+    EntryPoint: foobar
+  Rancher:
+    Watch: true
+    DefaultRule: foobar
+    ExposedByDefault: true
+    EnableServiceHealthFilter: true
+    RefreshSeconds: 42
+    IntervalPoll: true
+    Prefix: foobar
+    Constraints:
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+      - Key: foobar
+        MustMatch: true
+        Value: foobar
+API:
+  EntryPoint: foobar
+  Dashboard: true
+  Middlewares:
+    - foobar
+    - foobar
+  Statistics:
+    RecentErrors: 42
+Metrics:
+  Prometheus:
+    Buckets:
+      - 42
+      - 42
+    EntryPoint: foobar
+    Middlewares:
+      - foobar
+      - foobar
+  Datadog:
+    Address: foobar
+    PushInterval: 10s
+  StatsD:
+    Address: foobar
+    PushInterval: 10s
+  InfluxDB:
+    Address: foobar
+    Protocol: foobar
+    PushInterval: 10s
+    Database: foobar
+    RetentionPolicy: foobar
+    Username: foobar
+    Password: foobar
+Ping:
+  EntryPoint: foobar
+  Middlewares:
+    - foobar
+    - foobar
+Log:
+  Level: foobar
+  FilePath: foobar
+  Format: foobar
+AccessLog:
+  FilePath: foobar
+  Format: foobar
+  BufferingSize: 42
+  Filters:
+    StatusCodes:
+      - foobar
+      - foobar
+    RetryAttempts: true
+    MinDuration: 42
+  Fields:
+    DefaultMode: foobar
+    Names:
+      name0: foobar
+      name1: foobar
+    Headers:
+      DefaultMode: foobar
+      Names:
+        name0: foobar
+        name1: foobar
+Tracing:
+  Backend: foobar
+  ServiceName: foobar
+  SpanNameLimit: 42
+  Jaeger:
+    SamplingServerURL: foobar
+    SamplingType: foobar
+    SamplingParam: 42
+    LocalAgentHostPort: foobar
+    Gen128Bit: true
+    Propagation: foobar
+    TraceContextHeaderName: foobar
+  Zipkin:
+    HTTPEndpoint: foobar
+    SameSpan: true
+    ID128Bit: true
+    Debug: true
+    SampleRate: 42
+  DataDog:
+    LocalAgentHostPort: foobar
+    GlobalTag: foobar
+    Debug: true
+    PrioritySampling: true
+    TraceIDHeaderName: foobar
+    ParentIDHeaderName: foobar
+    SamplingPriorityHeaderName: foobar
+    BagagePrefixHeaderName: foobar
+  Instana:
+    LocalAgentHost: foobar
+    LocalAgentPort: 42
+    LogLevel: foobar
+HostResolver:
+  CnameFlattening: true
+  ResolvConfig: foobar
+  ResolvDepth: 42
+ACME:
+  Email: foobar
+  ACMELogging: true
+  CAServer: foobar
+  Storage: foobar
+  EntryPoint: foobar
+  KeyType: foobar
+  OnHostRule: true
+  DNSChallenge:
+    Provider: foobar
+    DelayBeforeCheck: 42
+    Resolvers:
+      - foobar
+      - foobar
+    DisablePropagationCheck: true
+  HTTPChallenge:
+    EntryPoint: foobar
+  TLSChallenge: {}
+  Domains:
+    - Main: foobar
+      SANs:
+        - foobar
+        - foobar
+    - Main: foobar
+      SANs:
+        - foobar
+        - foobar