Configure and run apache on top of hound

Creates a service user and runs hound and apache. The config.json can
optionally be unmanaged but is otherwise taken from a file.

Co-Authored-By: Monty Taylor <mordred@inaugust.com>
Change-Id: I4042594421989ab60d1134fbfcfc8b0c73839faa

files/config.json

@@ -0,0 +1,9 @@
+{
+    "max-concurrent-indexers" : 2,
+    "dbpath" : "data",
+    "repos" : {
+        "hound" : {
+            "url" : "https://www.github.com/Etsy/hound.git"
+        }
+    }
+}

files/hound.init

@@ -0,0 +1,71 @@
+#!/bin/sh
+### BEGIN INIT INFO
+# Provides:          hound
+# Required-Start:    $network $local_fs
+# Required-Stop:
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: Hound Source Code Indexer
+#### END INIT INFO
+
+NAME=hound
+USER=hound
+GROUP=hound
+HOUND_HOME="/home/hound"
+CMD_DIR="$HOUND_HOME/bin"
+CMD="houndd"
+CMD_ARGS=""
+LOG_FILE=/var/log/hound.log
+
+########## Common
+PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin:$PATH
+SSD=start-stop-daemon
+PID=/var/run/${NAME}.pid
+
+start () {
+    echo -n "Start $NAME"
+    $SSD --start --pidfile $PID --make-pidfile -u $USER -g $GROUP \
+        -d $HOUND_HOME --background \
+        --startas /bin/bash -- -c "exec $CMD_DIR/$CMD >$LOG_FILE 2>&1"
+    RETVAL=$?
+    echo
+    return $RETVAL
+}
+
+stop () {
+    echo -n "Stop $NAME"
+    $SSD --stop --oknodo --pidfile $PID --signal INT
+    RETVAL=$?
+    echo
+    return $RETVAL
+}
+
+restart () {
+    stop
+    sleep 1
+    start
+}
+
+case "$1" in
+  start)
+    start
+    ;;
+
+  stop)
+    stop
+    ;;
+
+  status)
+    echo "not supported"
+    ;;
+
+  restart)
+    restart
+    ;;
+
+  *)
+    echo "Usage: $0 {start|stop|restart}"
+    exit 1
+esac
+
+exit $RETVAL

manifests/init.pp

@@ -0,0 +1,119 @@
+# Class to configure hound
+#
+# == Class: hound
+class hound (
+  $manage_config = true,
+  $config_json = 'hound/config.json',
+  $vhost_name = $::fqdn,
+  $datadir = '/home/hound/data',
+  $serveradmin = "webmaster@${::fqdn}",
+) {
+
+  package { 'golang':
+    ensure => present,
+  }
+
+  user { 'hound':
+    ensure     => present,
+    home       => '/home/hound',
+    shell      => '/bin/bash',
+    gid        => 'hound',
+    managehome => true,
+    require    => Group['hound'],
+  }
+
+  group { 'hound':
+    ensure => present,
+  }
+
+  file {'/home/hound':
+    ensure  => directory,
+    owner   => 'hound',
+    group   => 'hound',
+    mode    => '0755',
+    require => User['hound'],
+  }
+
+  file { $datadir:
+    ensure  => 'directory',
+    owner   => 'hound',
+    group   => 'hound',
+    require => User['hound'],
+  }
+
+  if $manage_config {
+    file { '/home/hound/config.json':
+      ensure  => 'present',
+      owner   => 'hound',
+      group   => 'hound',
+      content => file($config_json),
+      require => User['hound'],
+    }
+  }
+
+  vcsrepo { '/home/hound/src/github.com/etsy/hound':
+    ensure   => latest,
+    provider => git,
+    source   => 'git://github.com/etsy/Hound.git',
+    notify   => Exec['build_hound'],
+  }
+
+  exec { 'build_hound':
+    command     => 'go install github.com/etsy/hound/cmds/...',
+    path        => '/bin:/usr/bin:/usr/local/bin',
+    environment => 'GOPATH=/home/hound',
+    cwd         => '/home/hound',
+    creates     => '/home/hound/bin/houndd',
+    user        => 'hound',
+    timeout     => 600,
+    require     => [
+      User['hound'],
+      Package['golang'],
+    ]
+  }
+
+  service { 'hound':
+    ensure     => running,
+    hasrestart => true,
+    require    => [
+      File['/etc/init.d/hound'],
+      Exec['build_hound'],
+    ],
+    subscribe  => File['/home/hound/config.json'],
+  }
+
+  file { '/etc/init.d/hound':
+    ensure => file,
+    owner  => root,
+    group  => root,
+    mode   => '0755',
+    source => 'puppet:///modules/hound/hound.init',
+    notify => Service['hound'],
+    before => Service['hound'],
+  }
+
+  include ::httpd
+
+  httpd_mod { 'rewrite':
+    ensure => present,
+    before => Service['hound'],
+  }
+
+  httpd_mod { 'proxy':
+    ensure => present,
+    before => Service['hound'],
+  }
+
+  httpd_mod { 'proxy_http':
+    ensure => present,
+    before => Service['hound'],
+  }
+
+  httpd::vhost { $vhost_name:
+    port     => 80,
+    docroot  => 'MEANINGLESS ARGUMENT',
+    priority => '50',
+    template => 'hound/hound.vhost.erb',
+  }
+
+}

metadata.json

@@ -8,5 +8,7 @@
   "project_page": "http://docs.openstack.org/infra/system-config/",
   "issues_url": "https://storyboard.openstack.org/#!/project/819",
   "dependencies": [
+    { "name": "openstackinfra/httpd" },
+    { "name": "puppetlabs/vcsrepo" }
   ]
 }

templates/hound.vhost.erb

@@ -0,0 +1,19 @@
+<VirtualHost *:80>
+  ServerName <%= @vhost_name %>
+  ServerAdmin <%= @serveradmin %>
+
+  ErrorLog ${APACHE_LOG_DIR}/<%= @vhost_name %>-error.log
+
+  LogLevel warn
+
+  CustomLog ${APACHE_LOG_DIR}/<%= @vhost_name %>-access.log combined
+
+  <IfModule mod_proxy.c>
+      RewriteEngine on
+
+      RewriteRule ^/(.*)$ http://localhost:6080/$1 [P]
+      ProxyPassReverse / http://localhost:6080/
+  </IfModule>
+
+
+</VirtualHost>