230 lines
7.5 KiB
Go
230 lines
7.5 KiB
Go
package config
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import (
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"crypto/tls"
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"crypto/x509"
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"fmt"
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"io/ioutil"
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"os"
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"reflect"
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traefiktls "github.com/containous/traefik/pkg/tls"
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)
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// Router holds the router configuration.
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type Router struct {
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EntryPoints []string `json:"entryPoints"`
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Middlewares []string `json:"middlewares,omitempty" toml:",omitempty"`
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Service string `json:"service,omitempty" toml:",omitempty"`
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Rule string `json:"rule,omitempty" toml:",omitempty"`
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Priority int `json:"priority,omitempty" toml:"priority,omitzero"`
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TLS *RouterTLSConfig `json:"tls,omitempty" toml:"tls,omitzero" label:"allowEmpty"`
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}
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// RouterTLSConfig holds the TLS configuration for a router
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type RouterTLSConfig struct{}
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// TCPRouter holds the router configuration.
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type TCPRouter struct {
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EntryPoints []string `json:"entryPoints"`
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Service string `json:"service,omitempty" toml:",omitempty"`
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Rule string `json:"rule,omitempty" toml:",omitempty"`
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TLS *RouterTCPTLSConfig `json:"tls,omitempty" toml:"tls,omitzero" label:"allowEmpty"`
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}
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// RouterTCPTLSConfig holds the TLS configuration for a router
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type RouterTCPTLSConfig struct {
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Passthrough bool `json:"passthrough" toml:"passthrough,omitzero"`
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}
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// LoadBalancerService holds the LoadBalancerService configuration.
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type LoadBalancerService struct {
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Stickiness *Stickiness `json:"stickiness,omitempty" toml:",omitempty" label:"allowEmpty"`
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Servers []Server `json:"servers,omitempty" toml:",omitempty" label-slice-as-struct:"server"`
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Method string `json:"method,omitempty" toml:",omitempty"`
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HealthCheck *HealthCheck `json:"healthCheck,omitempty" toml:",omitempty"`
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PassHostHeader bool `json:"passHostHeader" toml:",omitempty"`
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ResponseForwarding *ResponseForwarding `json:"forwardingResponse,omitempty" toml:",omitempty"`
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}
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// TCPLoadBalancerService holds the LoadBalancerService configuration.
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type TCPLoadBalancerService struct {
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Servers []TCPServer `json:"servers,omitempty" toml:",omitempty" label-slice-as-struct:"server"`
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Method string `json:"method,omitempty" toml:",omitempty"`
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}
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// Mergeable tells if the given service is mergeable.
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func (l *LoadBalancerService) Mergeable(loadBalancer *LoadBalancerService) bool {
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savedServers := l.Servers
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defer func() {
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l.Servers = savedServers
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}()
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l.Servers = nil
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savedServersLB := loadBalancer.Servers
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defer func() {
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loadBalancer.Servers = savedServersLB
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}()
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loadBalancer.Servers = nil
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return reflect.DeepEqual(l, loadBalancer)
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}
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// SetDefaults Default values for a LoadBalancerService.
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func (l *LoadBalancerService) SetDefaults() {
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l.PassHostHeader = true
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l.Method = "wrr"
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}
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// ResponseForwarding holds configuration for the forward of the response.
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type ResponseForwarding struct {
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FlushInterval string `json:"flushInterval,omitempty" toml:",omitempty"`
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}
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// Stickiness holds the stickiness configuration.
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type Stickiness struct {
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CookieName string `json:"cookieName,omitempty" toml:",omitempty"`
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}
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// Server holds the server configuration.
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type Server struct {
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URL string `json:"url" label:"-"`
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Scheme string `toml:"-" json:"-"`
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Port string `toml:"-" json:"-"`
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Weight int `json:"weight"`
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}
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// TCPServer holds a TCP Server configuration
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type TCPServer struct {
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Address string `json:"address" label:"-"`
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Weight int `json:"weight"`
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}
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// SetDefaults Default values for a Server.
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func (s *Server) SetDefaults() {
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s.Weight = 1
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s.Scheme = "http"
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}
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// HealthCheck holds the HealthCheck configuration.
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type HealthCheck struct {
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Scheme string `json:"scheme,omitempty" toml:",omitempty"`
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Path string `json:"path,omitempty" toml:",omitempty"`
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Port int `json:"port,omitempty" toml:",omitempty,omitzero"`
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// FIXME change string to parse.Duration
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Interval string `json:"interval,omitempty" toml:",omitempty"`
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// FIXME change string to parse.Duration
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Timeout string `json:"timeout,omitempty" toml:",omitempty"`
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Hostname string `json:"hostname,omitempty" toml:",omitempty"`
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Headers map[string]string `json:"headers,omitempty" toml:",omitempty"`
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}
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// CreateTLSConfig creates a TLS config from ClientTLS structures.
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func (clientTLS *ClientTLS) CreateTLSConfig() (*tls.Config, error) {
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if clientTLS == nil {
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return nil, nil
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}
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var err error
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caPool := x509.NewCertPool()
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clientAuth := tls.NoClientCert
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if clientTLS.CA != "" {
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var ca []byte
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if _, errCA := os.Stat(clientTLS.CA); errCA == nil {
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ca, err = ioutil.ReadFile(clientTLS.CA)
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if err != nil {
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return nil, fmt.Errorf("failed to read CA. %s", err)
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}
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} else {
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ca = []byte(clientTLS.CA)
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}
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if !caPool.AppendCertsFromPEM(ca) {
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return nil, fmt.Errorf("failed to parse CA")
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}
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if clientTLS.CAOptional {
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clientAuth = tls.VerifyClientCertIfGiven
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} else {
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clientAuth = tls.RequireAndVerifyClientCert
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}
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}
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cert := tls.Certificate{}
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_, errKeyIsFile := os.Stat(clientTLS.Key)
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if !clientTLS.InsecureSkipVerify && (len(clientTLS.Cert) == 0 || len(clientTLS.Key) == 0) {
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return nil, fmt.Errorf("TLS Certificate or Key file must be set when TLS configuration is created")
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}
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if len(clientTLS.Cert) > 0 && len(clientTLS.Key) > 0 {
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if _, errCertIsFile := os.Stat(clientTLS.Cert); errCertIsFile == nil {
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if errKeyIsFile == nil {
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cert, err = tls.LoadX509KeyPair(clientTLS.Cert, clientTLS.Key)
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if err != nil {
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return nil, fmt.Errorf("failed to load TLS keypair: %v", err)
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}
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} else {
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return nil, fmt.Errorf("tls cert is a file, but tls key is not")
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}
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} else {
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if errKeyIsFile != nil {
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cert, err = tls.X509KeyPair([]byte(clientTLS.Cert), []byte(clientTLS.Key))
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if err != nil {
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return nil, fmt.Errorf("failed to load TLS keypair: %v", err)
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}
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} else {
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return nil, fmt.Errorf("TLS key is a file, but tls cert is not")
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}
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}
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}
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return &tls.Config{
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Certificates: []tls.Certificate{cert},
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RootCAs: caPool,
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InsecureSkipVerify: clientTLS.InsecureSkipVerify,
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ClientAuth: clientAuth,
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}, nil
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}
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// Message holds configuration information exchanged between parts of traefik.
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type Message struct {
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ProviderName string
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Configuration *Configuration
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}
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// Configuration is the root of the dynamic configuration
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type Configuration struct {
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HTTP *HTTPConfiguration
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TCP *TCPConfiguration
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TLS []*traefiktls.Configuration `json:"-" label:"-"`
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TLSOptions map[string]traefiktls.TLS
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TLSStores map[string]traefiktls.Store
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}
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// Configurations is for currentConfigurations Map.
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type Configurations map[string]*Configuration
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// HTTPConfiguration FIXME better name?
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type HTTPConfiguration struct {
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Routers map[string]*Router `json:"routers,omitempty" toml:",omitempty"`
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Middlewares map[string]*Middleware `json:"middlewares,omitempty" toml:",omitempty"`
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Services map[string]*Service `json:"services,omitempty" toml:",omitempty"`
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}
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// TCPConfiguration FIXME better name?
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type TCPConfiguration struct {
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Routers map[string]*TCPRouter `json:"routers,omitempty" toml:",omitempty"`
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Services map[string]*TCPService `json:"services,omitempty" toml:",omitempty"`
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}
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// Service holds a service configuration (can only be of one type at the same time).
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type Service struct {
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LoadBalancer *LoadBalancerService `json:"loadbalancer,omitempty" toml:",omitempty,omitzero"`
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}
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// TCPService holds a tcp service configuration (can only be of one type at the same time).
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type TCPService struct {
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LoadBalancer *TCPLoadBalancerService `json:"loadbalancer,omitempty" toml:",omitempty,omitzero"`
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}
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