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checks.go
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/
checks.go
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// Copyright 2023 The Infratographer Authors
//
// 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 echox
import (
"net/http"
"github.com/labstack/echo/v4"
"go.uber.org/zap"
)
// livenessCheckHandler ensures that the server is up and responding
func (s *Server) livenessCheckHandler(c echo.Context) error {
return c.JSON(http.StatusOK, echo.Map{
"status": "UP",
})
}
// readinessCheckHandler ensures that the server is up and that we are able to process
// requests. It will check any readinessChecks that have been provided and return
// their status when calculating if the service is ready.
func (s *Server) readinessCheckHandler(c echo.Context) error {
failed := false
status := map[string]string{}
for name, check := range s.readinessChecks {
if err := check(c.Request().Context()); err != nil {
s.logger.Error("readiness check failed", zap.String("name", name), zap.Error(err))
failed = true
status[name] = err.Error()
} else {
status[name] = "OK"
}
}
if failed {
return c.JSON(http.StatusServiceUnavailable, status)
}
return c.JSON(http.StatusOK, status)
}
// version returns the version build information.
func (s *Server) versionHandler(c echo.Context) error {
return c.JSON(http.StatusOK, s.version)
}