68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
package rest
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"github.com/gorilla/mux"
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"github.com/traefik/traefik/v2/pkg/config/dynamic"
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"github.com/traefik/traefik/v2/pkg/log"
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"github.com/traefik/traefik/v2/pkg/provider"
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"github.com/traefik/traefik/v2/pkg/safe"
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"github.com/unrolled/render"
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)
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var _ provider.Provider = (*Provider)(nil)
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// Provider is a provider.Provider implementation that provides a Rest API.
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type Provider struct {
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Insecure bool `description:"Activate REST Provider directly on the entryPoint named traefik." json:"insecure,omitempty" toml:"insecure,omitempty" yaml:"insecure,omitempty" export:"true"`
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configurationChan chan<- dynamic.Message
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}
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// SetDefaults sets the default values.
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func (p *Provider) SetDefaults() {}
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var templatesRenderer = render.New(render.Options{Directory: "nowhere"})
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// Init the provider.
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func (p *Provider) Init() error {
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return nil
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}
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// CreateRouter creates a router for the Rest API.
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func (p *Provider) CreateRouter() *mux.Router {
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router := mux.NewRouter()
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router.Methods(http.MethodPut).Path("/api/providers/{provider}").Handler(p)
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return router
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}
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func (p *Provider) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
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vars := mux.Vars(req)
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if vars["provider"] != "rest" {
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http.Error(rw, "Only 'rest' provider can be updated through the REST API", http.StatusBadRequest)
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return
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}
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configuration := new(dynamic.Configuration)
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if err := json.NewDecoder(req.Body).Decode(configuration); err != nil {
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log.WithoutContext().Errorf("Error parsing configuration %+v", err)
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http.Error(rw, fmt.Sprintf("%+v", err), http.StatusBadRequest)
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return
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}
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p.configurationChan <- dynamic.Message{ProviderName: "rest", Configuration: configuration}
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if err := templatesRenderer.JSON(rw, http.StatusOK, configuration); err != nil {
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log.WithoutContext().Error(err)
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}
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}
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// Provide allows the provider to provide configurations to traefik
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// using the given configuration channel.
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func (p *Provider) Provide(configurationChan chan<- dynamic.Message, pool *safe.Pool) error {
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p.configurationChan = configurationChan
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return nil
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}
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