media, wiki-publish, caption updates

* common-playbook.yml: Start moving publishing setup to res
* group_vars/all.yml: New common variables.
* inventory.yml (prod): Number of threads, new hosts
* roles/caption/templates/process-captions.py: Add mp4, try to figure
out why script was failing, simplify
* roles/media/tasks/main.yml: New role for setting up
media.emacsconf.org for this year
* roles/prerec/templates/reencode.sh: Keep a copy of zaeph's script
* roles/stream/defaults/main.yml: Add more variables
* roles/stream: Restreaming lowres
* roles/wiki-publish/tasks/emacs.yml: Build Emacs from source

1 files changed, 76 insertions, 0 deletions

diff --git a/roles/stream/templates/lowres.init.d b/roles/stream/templates/lowres.init.d
new file mode 100755
index 0000000..41da95c
--- /dev/null
+++ b/roles/stream/templates/lowres.init.d
@@ -0,0 +1,76 @@
+#!/bin/sh
+# {{ ansible_managed }}
+
+### BEGIN INIT INFO
+# Provides:          {{ emacsconf_id }}-lowres-{{ item.id }}
+# Required-Start:    $local_fs $remote_fs $network $syslog
+# Required-Stop:     $local_fs $remote_fs $network $syslog
+# Default-Start:     2 3 4 5
+# Default-Stop:      0 1 6
+# Short-Description: 480p restreaming for {{ item.name }}
+# Description:       480p restreaming for {{ item.name }} using start-stop-daemon
+### END INIT INFO
+
+PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin"
+USER="{{ icecast_user }}"
+GROUP="{{ icecast_group }}"
+DESC="Low-res restream for {{ item.name }}"
+NAME="{{ emacsconf_id }}-lowres-{{ item.id }}"
+
+set -e
+
+. /lib/lsb/init-functions
+
+start() {
+  echo "Starting $DESC... "
+	start-stop-daemon --start --chuid "$USER:$GROUP" --background --make-pidfile --pidfile /var/run/$NAME.pid --exec "/usr/local/bin/{{ emacsconf_id }}-lowres-{{ item.id }}.sh http://localhost:{{ icecast_port }}/{{ item.id }}.webm http:// > /var/log/$NAME.log" || true
+  echo "done"
+}
+
+#We need this function to ensure the whole process tree will be killed
+killtree() {
+    local _pid=$1
+    local _sig=${2-TERM}
+    for _child in $(ps -o pid --no-headers --ppid ${_pid}); do
+        killtree ${_child} ${_sig}
+    done
+    kill -${_sig} ${_pid}
+}
+
+stop() {
+  echo "Stopping $DESC... "
+  if test -f /var/run/$NAME.pid; then
+    while test -d /proc/$(cat /var/run/$NAME.pid); do
+      killtree $(cat /var/run/$NAME.pid) 15
+      sleep 0.5
+    done
+    rm /var/run/$NAME.pid
+  fi
+  echo "done"
+}
+
+status() {
+  status_of_proc -p /var/run/$NAME.pid "" "$NAME" && exit 0 || exit $?
+}
+
+case "$1" in
+  start)
+	  start
+	  ;;
+  stop)
+    stop
+	  ;;
+  restart)
+	  stop
+	  start
+	  ;;
+  status)
+	  status
+	  ;;
+  *)
+	  echo "Usage: $NAME {start|stop|restart|status}" >&2
+	  exit 1
+	  ;;
+esac
+
+exit 0