Script to configure cluster params on local ODL installation.

The new script will configure hostname, seed node, etc. in the akka.conf
and modules-shards.conf files. Run the script without params to get the
usage.

Usage: bin/configure_cluster.sh <index> <seed_nodes_list>
 - index: Integer within 1..N, where N is the number of seed nodes.
 - seed_nodes_list: List of seed nodes, separated by comma or space.

The address at the provided index should belong this controller.
When running this script on multiple seed nodes, keep the
seed_node_list same, and vary the index from 1 through N.

Change-Id: Id6b3009a774d6b80896f90a30c6fbd9f4807eaa8
Signed-off-by: Shaleen Saxena <ssaxena@brocade.com>
(cherry picked from commit 668463bc48bcbf29c934c6e7a93ac11430eac5c1)

diff --git a/distributions/karaf/src/main/assembly/bin/configure_cluster.sh b/distributions/karaf/src/main/assembly/bin/configure_cluster.sh
new file mode 100755 (executable)
index 0000000..bc83779
--- /dev/null
+++ b/distributions/karaf/src/main/assembly/bin/configure_cluster.sh
@@ -0,0 +1,160 @@
+#!/bin/bash
+#
+# Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Eclipse Public License v1.0 which accompanies this distribution,
+# and is available at http://www.eclipse.org/legal/epl-v10.html
+#
+
+
+function usage()
+{
+    # Print any error messages
+    test "$1" != "" && echo " ERROR: $1"
+
+    # Print standard usage help
+    cat << EOF
+ This script is used to configure cluster parameters on this
+ controller. The user should restart controller to apply changes.
+
+ Usage: $0 <index> <seed_nodes_list>
+  - index: Integer within 1..N, where N is the number of seed nodes.
+  - seed_nodes_list: List of seed nodes, separated by comma or space.
+
+ The address at the provided index should belong this controller.
+ When running this script on multiple seed nodes, keep the
+ seed_node_list same, and vary the index from 1 through N.
+
+EOF
+
+    exit -1
+}
+
+
+function start_banner
+{
+cat <<EOF
+################################################
+##             Configure Cluster              ##
+################################################
+EOF
+}
+
+function end_banner
+{
+cat <<EOF
+################################################
+##   NOTE: Manually restart controller to     ##
+##         apply configuration.               ##
+################################################
+EOF
+}
+
+# Utility function for joining strings.
+function join {
+    delim=',\n\t\t\t'
+    final=$1; shift
+
+    for str in $* ; do
+       final=${final}${delim}${str}
+    done
+
+    echo ${final}
+}
+
+function create_strings
+{
+    # Using a list of controller IPs, create the strings for data
+    # and rpc seed nodes, as well as the list of members.
+
+    # First create an arrays with one string per controller.
+    # Then merge the array using the join utility defined above.
+    count=1
+    for ip in ${CONTROLLERIPS[@]} ; do
+        ds[$count]=\\\"akka.tcp:\\/\\/opendaylight-cluster-data@${ip}:2550\\\"
+        rpc[$count]=\\\"akka.tcp:\\/\\/odl-cluster-rpc@${ip}:2551\\\"
+        members[$count]=\\\"member-${count}\\\"
+        count=$[count + 1]
+    done
+
+    DATA_SEED_LIST=$(join ${ds[@]})
+    RPC_SEED_LIST=$(join ${rpc[@]})
+    MEMBER_NAME_LIST=$(join ${members[@]})
+}
+
+function get_cli_params
+{
+    # Check if params have been supplied
+    test $# -eq 0 && usage
+
+    # First param is index, and rest are controller list
+    INDEX=$1; shift
+    CONTROLLER_LIST=$*
+
+    # Verify we have controller list
+    test "${CONTROLLER_LIST}" == "" && usage "Missing controller list"
+
+    # Create the list of controllers from the CONTROLLER_LIST variable
+    CONTROLLERIPS=( ${CONTROLLER_LIST//,/ } )
+
+    test ${INDEX} -le 0 -o ${INDEX} -gt ${#CONTROLLERIPS[@]} && \
+        usage "Invalid index"
+
+    CONTROLLER_ID="member-${INDEX}"
+    CONTROLLER_IP="${CONTROLLERIPS[((${INDEX} - 1))]}"
+}
+
+
+function modify_conf_files
+{
+    echo "Configuring unique name in akka.conf"
+    sed -i -e "/roles[ ]*=/ { :loop1 /.*\]/ b done1; N; b loop1; :done1 s/roles.*\]/roles = [\"${CONTROLLER_ID}\"]/}" ${AKKACONF}
+
+    echo "Configuring hostname in akka.conf"
+    sed -i -e "s/hostname[ ]*=.*\"/hostname = \"${CONTROLLER_IP}\"/" ${AKKACONF}
+
+    echo "Configuring data and rpc seed nodes in akka.conf"
+    sed -i -e "/seed-nodes[ ]*=/ { :loop2 /.*\]/ b done2; N; b loop2; :done2 s/seed-nodes.*opendaylight-cluster-data.*\]/seed-nodes = [${DATA_SEED_LIST}]/; s/seed-nodes.*odl-cluster-rpc.*\]/seed-nodes = [${RPC_SEED_LIST}]/}" ${AKKACONF}
+
+    echo "Configuring replication type in module-shards.conf"
+    sed -i -e "/^[^#].*replicas[ ]*=/ { :loop /.*\]/ b done; N; b loop; :done s/replicas.*\]/replicas = [${MEMBER_NAME_LIST}]/}" ${MODULESHARDSCONF}
+}
+
+
+function verify_configuration_files
+{
+    # Constants
+    BIN_DIR=`dirname $0`
+    CONTROLLER_DIR=`dirname ${BIN_DIR}`
+    CONF_DIR=${CONTROLLER_DIR}/configuration/initial
+    AKKACONF=${CONF_DIR}/akka.conf
+    MODULESCONF=${CONF_DIR}/modules.conf
+    MODULESHARDSCONF=${CONF_DIR}/module-shards.conf
+
+    # Verify configuation files are present.
+    if [ ! -f ${AKKACONF} -o ! -f ${MODULESHARDSCONF} ]; then
+       cat << EOF
+ ERROR: Cluster configurations files not found. Please configure\
+ clustering feature.
+
+EOF
+       exit -1
+    fi
+}
+
+function main
+{
+    get_cli_params $*
+    verify_configuration_files
+    create_strings
+
+    start_banner
+    modify_conf_files
+    end_banner
+}
+
+main $*
+
+# vim: ts=4 sw=4 sts=4 et ft=sh :
+