38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
package ping
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import (
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"context"
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"fmt"
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"net/http"
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)
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// Handler expose ping routes.
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type Handler struct {
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EntryPoint string `description:"EntryPoint" export:"true" json:"entryPoint,omitempty" toml:"entryPoint,omitempty" yaml:"entryPoint,omitempty"`
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ManualRouting bool `description:"Manual routing" json:"manualRouting,omitempty" toml:"manualRouting,omitempty" yaml:"manualRouting,omitempty" export:"true"`
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TerminatingStatusCode int `description:"Terminating status code" json:"terminatingStatusCode,omitempty" toml:"terminatingStatusCode,omitempty" yaml:"terminatingStatusCode,omitempty" export:"true"`
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terminating bool
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}
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// SetDefaults sets the default values.
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func (h *Handler) SetDefaults() {
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h.EntryPoint = "traefik"
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h.TerminatingStatusCode = http.StatusServiceUnavailable
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}
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// WithContext causes the ping endpoint to serve non 200 responses.
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func (h *Handler) WithContext(ctx context.Context) {
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go func() {
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<-ctx.Done()
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h.terminating = true
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}()
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}
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func (h *Handler) ServeHTTP(response http.ResponseWriter, request *http.Request) {
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statusCode := http.StatusOK
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if h.terminating {
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statusCode = h.TerminatingStatusCode
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}
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response.WriteHeader(statusCode)
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fmt.Fprint(response, http.StatusText(statusCode))
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}
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