aeb3cb34bf
* Added a mode option to the resource specification enabling secrets to set the file permissions * Fixed a bug in the renewal time, when a resource does not have a custom update and the lease time is 0s * Cleaned up some of the vetting issue
83 lines
2.2 KiB
Go
83 lines
2.2 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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"fmt"
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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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var (
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prog = "vault-sidekick"
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release = "v0.3.1"
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gitsha = ""
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)
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func main() {
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version := fmt.Sprintf("%s (git+sha %s)", release, gitsha)
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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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if options.showVersion {
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fmt.Printf("%s %s\n", prog, version)
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return
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}
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glog.Infof("starting the %s, %s", prog, version)
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// step: create a client to vault
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vault, err := NewVaultService(options.vaultURL)
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if err != nil {
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showUsage("unable to create the vault client: %s", err)
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}
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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: 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: 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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glog.V(10).Infof("recieved an update from the resource: %s", evt.Resource)
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go func(r VaultEvent) {
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if err := processResource(evt.Resource, evt.Secret); err != nil {
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glog.Errorf("failed to write out the update, error: %s", err)
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}
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}(evt)
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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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