Clarify hbal man page

[ganeti-local] / daemons / daemon-util.in

diff --git a/daemons/daemon-util.in b/daemons/daemon-util.in
old mode 100755 (executable)
new mode 100644 (file)
index 819fd6b..44c39a9
--- a/daemons/daemon-util.in
+++ b/daemons/daemon-util.in
@@ -1,7 +1,7 @@
 #!/bin/bash
 #
 
-# Copyright (C) 2009 Google Inc.
+# Copyright (C) 2009, 2011, 2012 Google Inc.
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -20,7 +20,9 @@
 
 set -e
 
-defaults_file=@SYSCONFDIR@/default/ganeti
+@SHELL_ENV_INIT@
+
+readonly defaults_file="$SYSCONFDIR/default/ganeti"
 
 # This is a list of all daemons and the order in which they're started. The
 # order is important as there are dependencies between them. On shutdown,
@@ -29,21 +31,45 @@ DAEMONS=(
   ganeti-noded
   ganeti-masterd
   ganeti-rapi
-  ganeti-confd
   )
 
+_confd_enabled() {
+  [[ "@CUSTOM_ENABLE_CONFD@" == True ]]
+}
+
+if _confd_enabled; then
+  DAEMONS+=( ganeti-confd )
+  DAEMONS+=( ganeti-luxid )
+fi
+
+_mond_enabled() {
+  [[ "@CUSTOM_ENABLE_MOND@" == True ]]
+}
+
+if _mond_enabled; then
+  DAEMONS+=( ganeti-mond )
+fi
+
 NODED_ARGS=
 MASTERD_ARGS=
 CONFD_ARGS=
+LUXID_ARGS=
 RAPI_ARGS=
+MOND_ARGS=
 
 # Read defaults file if it exists
 if [[ -s $defaults_file ]]; then
   . $defaults_file
 fi
 
+# Meant to facilitate use utilities in /etc/rc.d/init.d/functions in case
+# start-stop-daemon is not available.
+_ignore_error() {
+  eval "$@" || :
+}
+
 _daemon_pidfile() {
-  echo "@LOCALSTATEDIR@/run/ganeti/$1.pid"
+  echo "$RUN_DIR/$1.pid"
 }
 
 _daemon_executable() {
@@ -58,12 +84,18 @@ _daemon_usergroup() {
     confd)
       echo "@GNTCONFDUSER@:@GNTCONFDGROUP@"
       ;;
+    luxid)
+      echo "@GNTLUXIDUSER@:@GNTLUXIDGROUP@"
+      ;;
     rapi)
       echo "@GNTRAPIUSER@:@GNTRAPIGROUP@"
       ;;
     noded)
       echo "@GNTNODEDUSER@:@GNTDAEMONSGROUP@"
       ;;
+    mond)
+      echo "@GNTMONDUSER@:@GNTMONDGROUP@"
+      ;;
     *)
       echo "root:@GNTDAEMONSGROUP@"
       ;;
@@ -72,7 +104,7 @@ _daemon_usergroup() {
 
 # Checks whether the local machine is part of a cluster
 check_config() {
-  local server_pem=@LOCALSTATEDIR@/lib/ganeti/server.pem
+  local server_pem=$DATA_DIR/server.pem
   local fname
 
   for fname in $server_pem; do
@@ -108,6 +140,30 @@ check_exitcode() {
   return 0
 }
 
+# Prints path to PID file for a daemon.
+daemon_pidfile() {
+  if [[ "$#" -lt 1 ]]; then
+    echo 'Missing daemon name.' >&2
+    return 1
+  fi
+
+  local name="$1"; shift
+
+  _daemon_pidfile $name
+}
+
+# Prints path to daemon executable.
+daemon_executable() {
+  if [[ "$#" -lt 1 ]]; then
+    echo 'Missing daemon name.' >&2
+    return 1
+  fi
+
+  local name="$1"; shift
+
+  _daemon_executable $name
+}
+
 # Prints a list of all daemons in the order in which they should be started
 list_start_daemons() {
   local name
@@ -149,9 +205,17 @@ check() {
   fi
 
   local name="$1"; shift
-
-  start-stop-daemon --stop --signal 0 --quiet \
-    --pidfile $(_daemon_pidfile $name)
+  local pidfile=$(_daemon_pidfile $name)
+  local daemonexec=$(_daemon_executable $name)
+
+  if type -p start-stop-daemon >/dev/null; then
+    start-stop-daemon --stop --signal 0 --quiet \
+      --pidfile $pidfile
+  else
+    _ignore_error status \
+      -p $pidfile \
+      $daemonexec
+  fi
 }
 
 # Starts a daemon
@@ -162,21 +226,39 @@ start() {
   fi
 
   local name="$1"; shift
-
   # Convert daemon name to uppercase after removing "ganeti-" prefix
   local plain_name=${name#ganeti-}
   local ucname=$(tr a-z A-Z <<<$plain_name)
+  local pidfile=$(_daemon_pidfile $name)
+  local usergroup=$(_daemon_usergroup $plain_name)
+  local daemonexec=$(_daemon_executable $name)
+
+  if ( [[ "$name" == ganeti-confd ]] || [[ "$name" == ganeti-luxid ]] ) \
+      && ! _confd_enabled; then
+    echo 'ganeti-confd disabled at build time' >&2
+    return 1
+  fi
 
   # Read $<daemon>_ARGS and $EXTRA_<daemon>_ARGS
   eval local args="\"\$${ucname}_ARGS \$EXTRA_${ucname}_ARGS\""
 
   @PKGLIBDIR@/ensure-dirs
 
-  start-stop-daemon --start --quiet --oknodo \
-    --pidfile $(_daemon_pidfile $name) \
-    --startas $(_daemon_executable $name) \
-    --chuid $(_daemon_usergroup $plain_name) \
-    -- $args "$@"
+  if type -p start-stop-daemon >/dev/null; then
+    start-stop-daemon --start --quiet --oknodo \
+      --pidfile $pidfile \
+      --startas $daemonexec \
+      --chuid $usergroup \
+      -- $args "$@"
+  else
+    # TODO: Find a way to start daemon with a group, until then the group must
+    # be removed
+    _ignore_error daemon \
+      --pidfile $pidfile \
+      --user ${usergroup%:*} \
+      $daemonexec $args "$@"
+  fi
+
 }
 
 # Stops a daemon
@@ -187,9 +269,14 @@ stop() {
   fi
 
   local name="$1"; shift
+  local pidfile=$(_daemon_pidfile $name)
 
-  start-stop-daemon --stop --quiet --oknodo --retry 30 \
-    --pidfile $(_daemon_pidfile $name)
+  if type -p start-stop-daemon >/dev/null; then
+    start-stop-daemon --stop --quiet --oknodo --retry 30 \
+      --pidfile $pidfile
+  else
+    _ignore_error killproc -p $pidfile $name
+  fi
 }
 
 # Starts a daemon if it's not yet running
@@ -237,11 +324,45 @@ stop_all() {
   done
 }
 
+# SIGHUP a process to force re-opening its logfiles
+rotate_logs() {
+  if [[ "$#" -lt 1 ]]; then
+    echo 'Missing daemon name.' >&2
+    return 1
+  fi
+
+  local name="$1"; shift
+  local pidfile=$(_daemon_pidfile $name)
+  local daemonexec=$(_daemon_executable $name)
+
+  if type -p start-stop-daemon >/dev/null; then
+    start-stop-daemon --stop --signal HUP --quiet \
+      --oknodo --pidfile $pidfile
+  else
+    _ignore_error killproc \
+      -p $pidfile \
+      $daemonexec -HUP
+  fi
+}
+
+# SIGHUP all processes
+rotate_all_logs() {
+  for i in $(list_stop_daemons); do
+    rotate_logs $i
+  done
+}
+
 # Reloads the SSH keys
 reload_ssh_keys() {
   @RPL_SSH_INITD_SCRIPT@ restart
 }
 
+# Read @SYSCONFDIR@/rc.d/init.d/functions if start-stop-daemon not available
+if ! type -p start-stop-daemon >/dev/null && \
+   [[ -f @SYSCONFDIR@/rc.d/init.d/functions ]]; then
+  _ignore_error . @SYSCONFDIR@/rc.d/init.d/functions
+fi
+
 if [[ "$#" -lt 1 ]]; then
   echo "Usage: $0 <action>" >&2
   exit 1