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root.go
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root.go
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/*
* Copyright © 2017-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
*
* 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.
*
* @author Aeneas Rekkas <aeneas+oss@aeneas.io>
* @copyright 2017-2018 Aeneas Rekkas <aeneas+oss@aeneas.io>
* @license Apache-2.0
*/
package cmd
import (
"fmt"
"os"
"github.com/fsnotify/fsnotify"
"github.com/gobuffalo/packr/v2"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra"
"github.com/ory/gojsonschema"
"github.com/ory/viper"
"github.com/ory/x/viperx"
"github.com/ory/x/logrusx"
)
var (
Version = "master"
Date = "undefined"
Commit = "undefined"
)
var schemas = packr.New("schemas", "../.schemas")
// RootCmd represents the base command when called without any subcommands
var RootCmd = &cobra.Command{
Use: "oathkeeper",
Short: "A cloud native Access and Identity Proxy",
}
// Execute adds all child commands to the root command sets flags appropriately.
// This is called by main.main(). It only needs to happen once to the rootCmd.
func Execute() {
if err := RootCmd.Execute(); err != nil {
fmt.Println(err)
os.Exit(-1)
}
}
var logger *logrus.Logger
func init() {
schema, err := schemas.Find("config.schema.json")
if err != nil {
panic(err)
}
cobra.OnInitialize(func() {
viperx.InitializeConfig("oathkeeper", "", nil)
logger = logrusx.New()
if err := viperx.Validate(gojsonschema.NewBytesLoader(schema)); err != nil {
viperx.LoggerWithValidationErrorFields(logger, err).
WithError(err).
Fatal("The configuration is invalid and could not be loaded.")
}
viperx.AddWatcher(func(event fsnotify.Event) error {
if err := viperx.Validate(gojsonschema.NewBytesLoader(schema)); err != nil {
viperx.LoggerWithValidationErrorFields(logger, err).
WithError(err).
Error("The changed configuration is invalid and could not be loaded. Rolling back to the last working configuration revision. Please address the validation errors before restarting ORY Oathkeeper.")
return viperx.ErrRollbackConfigurationChanges
}
return nil
})
viperx.WatchConfig(logger, &viperx.WatchOptions{
Immutables: []string{"serve", "profiling", "log"},
OnImmutableChange: func(key string) {
logger.
WithField("key", key).
WithField("reset_to", fmt.Sprintf("%v", viper.Get(key))).
Error("A configuration value marked as immutable has changed. Rolling back to the last working configuration revision. To reload the values please restart ORY Oathkeeper.")
},
})
})
viperx.RegisterConfigFlag(RootCmd, "oathkeeper")
}