new file mode 100644

@@ -0,0 +1,108 @@

+#!/bin/bash

+#

+# lib/dlm

+#

+# Functions to control the installation and configuration of software

+# that provides a dlm (and possibly other functions). The default is

+# **zookeeper**, and is going to be the only backend supported in the

+# devstack tree.

+

+# Dependencies:

+#

+# - ``functions`` file

+

+# ``stack.sh`` calls the entry points in this order:

+#

+# - is_dlm_enabled

+# - install_dlm

+# - configure_dlm

+# - cleanup_dlm

+

+# Save trace setting

+XTRACE=$(set +o | grep xtrace)

+set +o xtrace

+

+

+# Defaults

+# --------

+

+# <define global variables here that belong to this project>

+

+# Set up default directories

+ZOOKEEPER_DATA_DIR=$DEST/data/zookeeper

+ZOOKEEPER_CONF_DIR=/etc/zookeeper

+

+

+# Entry Points

+# ------------

+#

+# NOTE(sdague): it is expected that when someone wants to implement

+# another one of these out of tree, they'll implement the following

+# functions:

+#

+# - dlm_backend

+# - install_dlm

+# - configure_dlm

+# - cleanup_dlm

+

+# This should be declared in the settings file of any plugin or

+# service that needs to have a dlm in their enviroment.

+function use_dlm {

+    enable_service $(dlm_backend)

+}

+

+# A function to return the name of the backend in question, some users

+# are going to need to know this.

+function dlm_backend {

+    echo "zookeeper"

+}

+

+# Test if a dlm is enabled (defaults to a zookeeper specific check)

+function is_dlm_enabled {

+    [[ ,${ENABLED_SERVICES}, =~ ,"$(dlm_backend)", ]] && return 0

+    return 1

+}

+

+# cleanup_dlm() - Remove residual data files, anything left over from previous

+# runs that a clean run would need to clean up

+function cleanup_dlm {

+    # NOTE(sdague): we don't check for is_enabled here because we

+    # should just delete this regardless. Some times users updated

+    # their service list before they run cleanup.

+    sudo rm -rf $ZOOKEEPER_DATA_DIR

+}

+

+# configure_dlm() - Set config files, create data dirs, etc

+function configure_dlm {

+    if is_dlm_enabled; then

+        sudo cp $FILES/zookeeper/* $ZOOKEEPER_CONF_DIR

+        sudo sed -i -e 's|.*dataDir.*|dataDir='$ZOOKEEPER_DATA_DIR'|' $ZOOKEEPER_CONF_DIR/zoo.cfg

+        # clean up from previous (possibly aborted) runs

+        # create required data files

+        sudo rm -rf $ZOOKEEPER_DATA_DIR

+        sudo mkdir -p $ZOOKEEPER_DATA_DIR

+        # restart after configuration, there is no reason to make this

+        # another step, because having data files that don't match the

+        # zookeeper running is just going to cause tears.

+        restart_service zookeeper

+    fi

+}

+

+# install_dlm() - Collect source and prepare

+function install_dlm {

+    if is_dlm_enabled; then

+        if is_ubuntu; then

+            install_package zookeeperd

+        else

+            die $LINENO "Don't know how to install zookeeper on this platform"

+        fi

+    fi

+}

+

+# Restore xtrace

+$XTRACE

+

+# Tell emacs to use shell-script-mode

+## Local variables:

+## mode: shell-script

+## End:

deleted file mode 100644

@@ -1,91 +0,0 @@

-#!/bin/bash

-#

-# lib/zookeeper

-# Functions to control the installation and configuration of **zookeeper**

-

-# Dependencies:

-#

-# - ``functions`` file

-

-# ``stack.sh`` calls the entry points in this order:

-#

-# - is_zookeeper_enabled

-# - install_zookeeper

-# - configure_zookeeper

-# - init_zookeeper

-# - start_zookeeper

-# - stop_zookeeper

-# - cleanup_zookeeper

-

-# Save trace setting

-XTRACE=$(set +o | grep xtrace)

-set +o xtrace

-

-

-# Defaults

-# --------

-

-# <define global variables here that belong to this project>

-

-# Set up default directories

-ZOOKEEPER_DATA_DIR=$DEST/data/zookeeper

-ZOOKEEPER_CONF_DIR=/etc/zookeeper

-

-

-# Entry Points

-# ------------

-

-# Test if any zookeeper service us enabled

-# is_zookeeper_enabled

-function is_zookeeper_enabled {

-    [[ ,${ENABLED_SERVICES}, =~ ,"zookeeper", ]] && return 0

-    return 1

-}

-

-# cleanup_zookeeper() - Remove residual data files, anything left over from previous

-# runs that a clean run would need to clean up

-function cleanup_zookeeper {

-    sudo rm -rf $ZOOKEEPER_DATA_DIR

-}

-

-# configure_zookeeper() - Set config files, create data dirs, etc

-function configure_zookeeper {

-    sudo cp $FILES/zookeeper/* $ZOOKEEPER_CONF_DIR

-    sudo sed -i -e 's|.*dataDir.*|dataDir='$ZOOKEEPER_DATA_DIR'|' $ZOOKEEPER_CONF_DIR/zoo.cfg

-}

-

-# init_zookeeper() - Initialize databases, etc.

-function init_zookeeper {

-    # clean up from previous (possibly aborted) runs

-    # create required data files

-    sudo rm -rf $ZOOKEEPER_DATA_DIR

-    sudo mkdir -p $ZOOKEEPER_DATA_DIR

-}

-

-# install_zookeeper() - Collect source and prepare

-function install_zookeeper {

-    install_package zookeeperd

-}

-

-# start_zookeeper() - Start running processes, including screen

-function start_zookeeper {

-    # Starting twice Zookeeper on Ubuntu exits with error code 1. See LP#1513741

-    # Match both systemd and sysvinit output

-    local running="(active \(running\)|start/running)"

-    if ! is_ubuntu || ! sudo /usr/sbin/service zookeeper status | egrep -q "$running"; then

-        start_service zookeeper

-    fi

-}

-

-# stop_zookeeper() - Stop running processes (non-screen)

-function stop_zookeeper {

-    stop_service zookeeper

-}

-

-# Restore xtrace

-$XTRACE

-

-# Tell emacs to use shell-script-mode

-## Local variables:

-## mode: shell-script

-## End:

@@ -557,7 +557,7 @@ source $TOP_DIR/lib/heat

 source $TOP_DIR/lib/neutron-legacy

 source $TOP_DIR/lib/ldap

 source $TOP_DIR/lib/dstat

-source $TOP_DIR/lib/zookeeper

+source $TOP_DIR/lib/dlm

 # Extras Source

 # --------------

@@ -742,11 +742,10 @@ run_phase stack pre-install

 install_rpc_backend

-if is_service_enabled zookeeper; then

-    cleanup_zookeeper

-    configure_zookeeper

-    init_zookeeper

-fi

+# NOTE(sdague): dlm install is conditional on one being enabled by configuration

+install_dlm

+configure_dlm

+

 if is_service_enabled $DATABASE_BACKENDS; then

     install_database

 fi

@@ -986,15 +985,6 @@ save_stackenv $LINENO

 start_dstat

-# Zookeeper

-# -----

-

-# zookeeper for use with tooz for Distributed Lock Management capabilities etc.,

-if is_service_enabled zookeeper; then

-    start_zookeeper

-fi

-

-

 # Keystone

 # --------

@@ -69,7 +69,7 @@ if ! isset ENABLED_SERVICES ; then

     # Dashboard

     ENABLED_SERVICES+=,horizon

     # Additional services

-    ENABLED_SERVICES+=,rabbit,tempest,mysql,dstat,zookeeper

+    ENABLED_SERVICES+=,rabbit,tempest,mysql,dstat

 fi

 # SQLAlchemy supports multiple database drivers for each database server

@@ -69,7 +69,7 @@ source $TOP_DIR/lib/heat

 source $TOP_DIR/lib/neutron-legacy

 source $TOP_DIR/lib/ldap

 source $TOP_DIR/lib/dstat

-source $TOP_DIR/lib/zookeeper

+source $TOP_DIR/lib/dlm

 # Extras Source

 # --------------