76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
/*
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Copyright 2015 Home Office All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"os"
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"os/signal"
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"syscall"
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"github.com/golang/glog"
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)
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const (
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Prog = "vault-sidekick"
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Version = "0.0.2"
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)
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func main() {
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var err error
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var vault *VaultService
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// step: parse and validate the command line / environment options
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if err = parseOptions(); err != nil {
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showUsage("invalid options, %s", err)
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}
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glog.Infof("starting the %s, version: %s", Prog, Version)
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// step: create a client to vault
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if vault, err = NewVaultService(options.vaultURL); err != nil {
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showUsage("unable to create the vault client: %s", err)
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}
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// step: setup the termination signals
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signalChannel := make(chan os.Signal)
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signal.Notify(signalChannel, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM, syscall.SIGQUIT)
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// step: create a channel to receive events upon and add our resources for renewal
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updates := make(chan VaultEvent, 10)
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vault.AddListener(updates)
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// step: add each of the resources to the service processor
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for _, rn := range options.resources.items {
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if err := rn.IsValid(); err != nil {
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showUsage("%s", err)
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}
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vault.Watch(rn)
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}
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// step: we simply wait for events i.e. secrets from vault and write them to the output directory
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for {
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select {
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case evt := <-updates:
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go writeResource(evt.Resource, evt.Secret)
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case <-signalChannel:
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glog.Infof("recieved a termination signal, shutting down the service")
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os.Exit(0)
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}
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}
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}
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