214 lines
7.2 KiB
Plaintext
214 lines
7.2 KiB
Plaintext
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# Defaults
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# --------
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# Set variables for building OVS from source
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OVS_REPO=${OVS_REPO:-https://github.com/openvswitch/ovs.git}
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OVS_REPO_NAME=$(basename ${OVS_REPO} | cut -f1 -d'.')
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OVS_REPO_NAME=${OVS_REPO_NAME:-ovs}
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OVS_BRANCH=${OVS_BRANCH:-0047ca3a0290f1ef954f2c76b31477cf4b9755f5}
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# Functions
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# load_module() - Load module using modprobe module given by argument and dies
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# on failure
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# - fatal argument is optional and says whether function should
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# exit if module can't be loaded
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function load_module {
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local module=$1
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local fatal=$2
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if [ "$(trueorfalse True fatal)" == "True" ]; then
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sudo modprobe $module || (dmesg && die $LINENO "FAILED TO LOAD $module")
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else
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sudo modprobe $module || (echo "FAILED TO LOAD $module" && dmesg)
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fi
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}
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# prepare_for_compilation() - Fetch ovs git repository and install packages needed for
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# compilation.
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function prepare_for_ovs_compilation {
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local build_modules=${1:-False}
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OVS_DIR=$DEST/$OVS_REPO_NAME
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if [ ! -d $OVS_DIR ] ; then
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# We can't use git_clone here because we want to ignore ERROR_ON_CLONE
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git_timed clone $OVS_REPO $OVS_DIR
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cd $OVS_DIR
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git checkout $OVS_BRANCH
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else
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# Even though the directory already exists, call git_clone to update it
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# if needed based on the RECLONE option
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git_clone $OVS_REPO $OVS_DIR $OVS_BRANCH
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cd $OVS_DIR
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fi
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# TODO: Can you create package list files like you can inside devstack?
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install_package autoconf automake libtool gcc patch make
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# If build_modules is False, we don't need to install the kernel-*
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# packages. Just return.
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if [[ "$build_modules" == "False" ]]; then
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return
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fi
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KERNEL_VERSION=`uname -r`
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if is_fedora ; then
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# is_fedora covers Fedora, RHEL, CentOS, etc...
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if [[ "$os_VENDOR" == "Fedora" ]]; then
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install_package elfutils-libelf-devel
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KERNEL_VERSION=`echo $KERNEL_VERSION | cut --delimiter='-' --field 1`
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elif [[ ${KERNEL_VERSION:0:2} != "3." ]]; then
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# dash is illegal character in rpm version so replace
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# them with underscore like it is done in the kernel
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# https://github.com/torvalds/linux/blob/master/scripts/package/mkspec#L25
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# but only for latest series of the kernel, not 3.x
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KERNEL_VERSION=`echo $KERNEL_VERSION | tr - _`
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fi
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echo NOTE: if kernel-devel-$KERNEL_VERSION or kernel-headers-$KERNEL_VERSION installation
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echo failed, please, provide a repository with the package, or yum update / reboot
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echo your machine to get the latest kernel.
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install_package kernel-devel-$KERNEL_VERSION
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install_package kernel-headers-$KERNEL_VERSION
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elif is_ubuntu ; then
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install_package linux-headers-$KERNEL_VERSION
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fi
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}
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# load_ovs_kernel_modules() - load openvswitch kernel module
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function load_ovs_kernel_modules {
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load_module openvswitch
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load_module vport-geneve False
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dmesg | tail
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}
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# reload_ovs_kernel_modules() - reload openvswitch kernel module
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function reload_ovs_kernel_modules {
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set +e
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ovs_system=$(sudo ovs-dpctl dump-dps | grep ovs-system)
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if [ -n "$ovs_system" ]; then
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sudo ovs-dpctl del-dp ovs-system
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fi
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set -e
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sudo modprobe -r vport_geneve
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sudo modprobe -r openvswitch
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load_ovs_kernel_modules
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}
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# compile_ovs() - Compile OVS from source and load needed modules.
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# Accepts two parameters:
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# - first one is False by default and means that modules are not built and installed.
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# - second optional parameter defines prefix for ovs compilation
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# - third optional parameter defines localstatedir for ovs single machine runtime
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# Env variables OVS_REPO_NAME, OVS_REPO and OVS_BRANCH must be set
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function compile_ovs {
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local _pwd=$PWD
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local build_modules=${1:-False}
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local prefix=$2
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local localstatedir=$3
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if [ -n "$prefix" ]; then
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prefix="--prefix=$prefix"
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fi
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if [ -n "$localstatedir" ]; then
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localstatedir="--localstatedir=$localstatedir"
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fi
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prepare_for_ovs_compilation $build_modules
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KERNEL_VERSION=$(uname -r)
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major_version=$(echo "${KERNEL_VERSION}" | cut -d '.' -f1)
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patch_level=$(echo "${KERNEL_VERSION}" | cut -d '.' -f2)
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if [ "${major_version}" -gt 5 ] || [ "${major_version}" == 5 ] && [ "${patch_level}" -gt 5 ]; then
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echo "NOTE: KERNEL VERSION is ${KERNEL_VERSION} and OVS doesn't support compiling "
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echo "Kernel module for version higher than 5.5. Skipping module compilation..."
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build_modules="False"
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fi
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if [ ! -f configure ] ; then
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./boot.sh
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fi
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if [ ! -f config.status ] || [ configure -nt config.status ] ; then
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if [[ "$build_modules" == "True" ]]; then
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./configure $prefix $localstatedir --with-linux=/lib/modules/$(uname -r)/build
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else
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./configure $prefix $localstatedir
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fi
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fi
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make -j$[$(nproc) + 1]
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sudo make install
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if [[ "$build_modules" == "True" ]]; then
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sudo make INSTALL_MOD_DIR=kernel/net/openvswitch modules_install
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reload_ovs_kernel_modules
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else
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load_ovs_kernel_modules
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fi
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cd $_pwd
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}
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# action_service - call an action over openvswitch service
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# Accepts one parameter that can be either
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# 'start', 'restart' and 'stop'.
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function action_openvswitch {
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local action=$1
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if is_ubuntu; then
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${action}_service openvswitch-switch
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elif is_fedora; then
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${action}_service openvswitch
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elif is_suse; then
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if [[ $DISTRO == "sle12" ]] && [[ $os_RELEASE -lt 12.2 ]]; then
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${action}_service openvswitch-switch
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else
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${action}_service openvswitch
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fi
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fi
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}
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# start_new_ovs() - removes old ovs database, creates a new one and starts ovs
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function start_new_ovs () {
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sudo rm -f /etc/openvswitch/conf.db /etc/openvswitch/.conf.db~lock~
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sudo /usr/share/openvswitch/scripts/ovs-ctl start
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}
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# stop_new_ovs() - stops ovs
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function stop_new_ovs () {
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local ovs_ctl='/usr/share/openvswitch/scripts/ovs-ctl'
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if [ -x $ovs_ctl ] ; then
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sudo $ovs_ctl stop
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fi
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}
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# remove_ovs_packages() - removes old ovs packages from the system
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function remove_ovs_packages() {
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for package in openvswitch openvswitch-switch openvswitch-common; do
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if is_package_installed $package; then
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uninstall_package $package
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fi
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done
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}
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# load_conntrack_gre_module() - loads nf_conntrack_proto_gre kernel module
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function load_conntrack_gre_module() {
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sudo modprobe nf_conntrack_proto_gre
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}
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