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/*
* Copyright 2017 NEC Corporation
*
* 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 main
import (
"context"
"fmt"
"github.com/labstack/echo"
"io"
"net/http"
"os"
"time"
)
func runAPIServer(ctx context.Context, config *Config) {
confDirPath := config.Server.CollectdConfDir
e := echo.New()
e.GET("/", func(c echo.Context) error {
return c.String(http.StatusOK, "GET OK")
})
e.POST("/collectd/conf", func(c echo.Context) error {
file, err := c.FormFile("file")
if err != nil {
return c.String(http.StatusInternalServerError, "file send NG")
}
src, err := file.Open()
if err != nil {
return c.String(http.StatusInternalServerError, "file open NG")
}
defer src.Close()
dst, err := os.Create(confDirPath + "/" + file.Filename)
if err != nil {
return c.String(http.StatusInternalServerError, "file create NG")
}
defer dst.Close()
// Copy
if _, err = io.Copy(dst, src); err != nil {
return c.String(http.StatusInternalServerError, "file write NG")
}
err = createCollectdConf()
if err != nil {
errstr := fmt.Sprintf("collectd conf NG:%v", err)
return c.String(http.StatusInternalServerError, errstr)
}
return c.String(http.StatusCreated, "collectd conf OK")
})
// Start server
go func() {
urlStr := ":" + config.Server.ListenPort
if err := e.Start(urlStr); err != nil {
e.Logger.Info("shutting down the server")
}
}()
// Wait for context.Done() to gracefully shutdown the server with
// a timeout of 10 seconds.
<-ctx.Done()
ctxShutdown, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if err := e.Shutdown(ctxShutdown); err != nil {
e.Logger.Fatal(err)
}
}
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