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vault-sidekick/main.go
Rohith 9d02d7e843 - extracting the options completelt
- passing all the options into the write, effectivly allowing you to pass all options
- fixed the format of the content
- added a changelog
- shifting to version v0.0.6
2016-03-16 13:07:54 +00:00

77 lines
2.1 KiB
Go

/*
Copyright 2015 Home Office All rights reserved.
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 (
"os"
"os/signal"
"syscall"
"github.com/golang/glog"
)
const (
Prog = "vault-sidekick"
Version = "v0.0.6"
)
func main() {
// step: parse and validate the command line / environment options
if err := parseOptions(); err != nil {
showUsage("invalid options, %s", err)
}
glog.Infof("starting the %s, version: %s", Prog, Version)
// step: create a client to vault
vault, err := NewVaultService(options.vaultURL)
if err != nil {
showUsage("unable to create the vault client: %s", err)
}
// step: create a channel to receive events upon and add our resources for renewal
updates := make(chan VaultEvent, 10)
vault.AddListener(updates)
// step: setup the termination signals
signalChannel := make(chan os.Signal)
signal.Notify(signalChannel, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
// step: add each of the resources to the service processor
for _, rn := range options.resources.items {
if err := rn.IsValid(); err != nil {
showUsage("%s", err)
}
vault.Watch(rn)
}
// step: we simply wait for events i.e. secrets from vault and write them to the output directory
for {
select {
case evt := <-updates:
glog.V(10).Infof("recieved an update from the resource: %s", evt.Resource)
go func(r VaultEvent) {
if err := writeResource(evt.Resource, evt.Secret); err != nil {
glog.Errorf("failed to write out the update, error: %s", err)
}
}(evt)
case <-signalChannel:
glog.Infof("recieved a termination signal, shutting down the service")
os.Exit(0)
}
}
}