mirror of
https://github.com/matrix-org/dendrite.git
synced 2025-12-24 07:13:09 -06:00
73 lines
2 KiB
Go
73 lines
2 KiB
Go
// Copyright 2020 The Matrix.org Foundation C.I.C.
|
|
//
|
|
// 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 httputil
|
|
|
|
import (
|
|
"context"
|
|
"database/sql"
|
|
"encoding/json"
|
|
"net/http"
|
|
|
|
"github.com/matrix-org/dendrite/internal/config"
|
|
"github.com/matrix-org/dendrite/internal/sqlutil"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
// healthResponse is returned on requests to /api/health
|
|
type healthResponse struct {
|
|
Code int `json:"code"`
|
|
FirstError string `json:"error"`
|
|
}
|
|
|
|
// HealthCheckHandler adds a /health endpoint to the internal api mux
|
|
func HealthCheckHandler(dbConfig ...config.DatabaseOptions) http.HandlerFunc {
|
|
conns := make([]*sql.DB, len(dbConfig))
|
|
// populate sql connections
|
|
for i, conf := range dbConfig {
|
|
c, err := sqlutil.Open(&conf)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
conns[i] = c
|
|
}
|
|
|
|
return func(rw http.ResponseWriter, req *http.Request) {
|
|
resp := &healthResponse{
|
|
Code: http.StatusOK,
|
|
FirstError: "",
|
|
}
|
|
err := dbPingCheck(conns, resp, req.Context())
|
|
if err != nil {
|
|
rw.WriteHeader(resp.Code)
|
|
}
|
|
|
|
if err := json.NewEncoder(rw).Encode(resp); err != nil {
|
|
logrus.WithError(err).Error("unable to encode health response")
|
|
}
|
|
}
|
|
}
|
|
|
|
func dbPingCheck(conns []*sql.DB, resp *healthResponse, ctx context.Context) error {
|
|
// check every database connection
|
|
for _, conn := range conns {
|
|
if err := conn.PingContext(ctx); err != nil {
|
|
resp.Code = http.StatusInternalServerError
|
|
resp.FirstError = err.Error()
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|