neutron/devstack/lib/ovs

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# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
OVS_REPO=${OVS_REPO:-https://github.com/openvswitch/ovs.git}
OVS_REPO_NAME=$(basename ${OVS_REPO} | cut -f1 -d'.')
OVS_BRANCH=${OVS_BRANCH:-origin/master}
# Functions
# load_module() - Load module using modprobe module given by argument and dies
# on failure
# - fatal argument is optional and says whether function should
# exit if module can't be loaded
function load_module {
local module=$1
local fatal=$2
if [ "$(trueorfalse True fatal)" == "True" ]; then
sudo modprobe $module || (dmesg && die $LINENO "FAILED TO LOAD $module")
else
sudo modprobe $module || (echo "FAILED TO LOAD vport_geneve" && dmesg)
fi
}
# compile_ovs() - Compile OVS from source and load needed modules.
# Accepts two parameters:
# - first one is True, modules are built and installed.
# - second optional parameter defines prefix for ovs compilation
# Env variables OVS_REPO_NAME, OVS_REPO and OVS_BRANCH must be set
function compile_ovs {
local _pwd=$PWD
local build_modules=${1:-True}
local prefix=$2
if [ -n "$prefix" ]; then
prefix="--prefix=$prefix"
fi
cd $DEST
if [ ! -d $OVS_REPO_NAME ] ; then
git clone $OVS_REPO
cd $OVS_REPO_NAME
git checkout $OVS_BRANCH
else
cd $OVS_REPO_NAME
fi
# TODO: Can you create package list files like you can inside devstack?
install_package autoconf automake libtool gcc patch make
if is_fedora ; then
# is_fedora covers Fedora, RHEL, CentOS, etc...
install_package kernel-devel
fi
if [ ! -f configure ] ; then
./boot.sh
fi
if [ ! -f config.status ] || [ configure -nt config.status ] ; then
if [[ "$build_modules" == "True" ]]; then
./configure $prefix --with-linux=/lib/modules/$(uname -r)/build
else
./configure $prefix
fi
fi
make -j$[$(nproc) + 1]
sudo make install
if [[ "$build_modules" == "True" ]]; then
sudo make INSTALL_MOD_DIR=kernel/net/openvswitch modules_install
sudo modprobe -r vport_geneve
sudo modprobe -r openvswitch
fi
load_module openvswitch
load_module vport-geneve False
dmesg | tail
cd $_pwd
}
# start_new_ovs() - removes old ovs database, creates a new one and starts ovs
function start_new_ovs () {
rm -f /etc/openvswitch/conf.db /etc/openvswitch/.conf.db~lock~
sudo /usr/share/openvswitch/scripts/ovs-ctl start
}