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health.go
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health.go
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// Copyright 2019 Drone IO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package health
import (
"io"
"net/http"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
)
// New returns a new health check router.
func New() http.Handler {
r := chi.NewRouter()
r.Use(middleware.Recoverer)
r.Use(middleware.NoCache)
r.Handle("/", Handler())
return r
}
// Handler creates an http.HandlerFunc that performs system
// healthchecks and returns 500 if the system is in an unhealthy state.
func Handler() http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(200)
w.Header().Set("Content-Type", "text/plain")
io.WriteString(w, "OK")
}
}