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#!/bin/bash -e
##############################################################################
# Copyright (c) 2018 Mirantis Inc., Enea AB and others.
# All rights reserved. This program and the accompanying materials
# are made available under the terms of the Apache License, Version 2.0
# which accompanies this distribution, and is available at
# http://www.apache.org/licenses/LICENSE-2.0
##############################################################################
#
# Library of shell functions used by build / deploy scripts on jumpserver:
# - distro package requirements installation (e.g. DEB, RPM);
# - other package requirements from custom sources (e.g. docker);
# - jumpserver prerequisites validation (e.g. network bridges);
# - distro configuration (e.g. udev, sysctl);
# etc.
##############################################################################
# private helper functions
##############################################################################
function __parse_yaml {
local prefix=$2
local s
local w
local fs
s='[[:space:]]*'
w='[a-zA-Z0-9_]*'
fs="$(echo @|tr @ '\034')"
sed -e 's|---||g' -ne "s|^\($s\)\($w\)$s:$s\"\(.*\)\"$s\$|\1$fs\2$fs\3|p" \
-e "s|^\($s\)\($w\)$s[:-]$s\(.*\)$s\$|\1$fs\2$fs\3|p" "$1" |
awk -F"$fs" '{
indent = length($1)/2;
vname[indent] = $2;
for (i in vname) {if (i > indent) {delete vname[i]}}
if (length($3) > 0) {
vn=""; for (i=0; i<indent; i++) {vn=(vn)(vname[i])("_")}
printf("%s%s%s=(\"%s\")\n", "'"$prefix"'",vn, $2, $3);
}
}' | sed 's/_=/+=/g'
}
##############################################################################
# public functions
##############################################################################
function jumpserver_pkg_install {
local req_type=$1
if [ -n "$(command -v apt-get)" ]; then
pkg_type='deb'; pkg_cmd='sudo apt-get install -y'
else
pkg_type='rpm'; pkg_cmd='sudo yum install -y --skip-broken'
fi
eval "$(__parse_yaml "./requirements_${pkg_type}.yaml")"
for section in 'common' "$(uname -i)"; do
section_var="${req_type}_${section}[*]"
pkg_list+=" ${!section_var}"
done
# shellcheck disable=SC2086
${pkg_cmd} ${pkg_list}
}
function jumpserver_check_requirements {
# shellcheck disable=SC2178
local vnodes=$1; shift
local br=("$@")
local err_br_not_found='Linux bridge not found!'
local err_br_virsh_net='is a virtual network, Linux bridge expected!'
local warn_br_endpoint="Endpoints might be inaccessible from external hosts!"
# MaaS requires a Linux bridge for PXE/admin
if [[ "${vnodes}" =~ mas01 ]]; then
if ! brctl showmacs "${br[0]}" >/dev/null 2>&1; then
notify_e "[ERROR] PXE/admin (${br[0]}) ${err_br_not_found}"
fi
# Assume virsh network name matches bridge name (true if created by us)
if ${VIRSH} net-info "${br[0]}" >/dev/null 2>&1; then
notify_e "[ERROR] ${br[0]} ${err_br_virsh_net}"
fi
fi
# If virtual nodes are present, public should be a Linux bridge
if [ "$(echo "${vnodes}" | wc -w)" -gt 2 ]; then
if ! brctl showmacs "${br[3]}" >/dev/null 2>&1; then
if [[ "${vnodes}" =~ mas01 ]]; then
# Baremetal nodes *require* a proper public network
notify_e "[ERROR] Public (${br[3]}) ${err_br_not_found}"
else
notify_n "[WARN] Public (${br[3]}) ${err_br_not_found}" 3
notify_n "[WARN] ${warn_br_endpoint}" 3
fi
fi
if ${VIRSH} net-info "${br[3]}" >/dev/null 2>&1; then
if [[ "${vnodes}" =~ mas01 ]]; then
notify_e "[ERROR] ${br[3]} ${err_br_virsh_net}"
else
notify_n "[WARN] ${br[3]} ${err_br_virsh_net}" 3
notify_n "[WARN] ${warn_br_endpoint}" 3
fi
fi
fi
}
function docker_install {
local image_dir=$1
# Mininum effort attempt at installing Docker if missing
if ! docker --version; then
curl -fsSL https://get.docker.com -o get-docker.sh
sudo sh get-docker.sh
rm get-docker.sh
# On RHEL distros, the Docker service should be explicitly started
sudo systemctl start docker
else
DOCKER_VER=$(docker version --format '{{.Server.Version}}')
if [ "${DOCKER_VER%%.*}" -lt 2 ]; then
notify_e "[ERROR] Docker version ${DOCKER_VER} is too old, please upgrade it."
fi
fi
# Distro-provided docker-compose might be simply broken (Ubuntu 16.04, CentOS 7)
if ! docker-compose --version > /dev/null 2>&1; then
COMPOSE_BIN="${image_dir}/docker-compose"
COMPOSE_VERSION='1.22.0'
notify_n "[WARN] Using docker-compose ${COMPOSE_VERSION} in ${COMPOSE_BIN}" 3
if [ ! -e "${COMPOSE_BIN}" ]; then
COMPOSE_URL="https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}"
sudo curl -L "${COMPOSE_URL}/docker-compose-$(uname -s)-$(uname -m)" -o "${COMPOSE_BIN}"
sudo chmod +x "${COMPOSE_BIN}"
fi
fi
}
function virtinst_install {
local image_dir=$1
VIRT_VER=$(virt-install --version 2>&1)
if [ "${VIRT_VER//./}" -lt 140 ]; then
VIRT_TGZ="${image_dir}/virt-manager.tar.gz"
VIRT_VER='1.4.3'
VIRT_URL="https://github.com/virt-manager/virt-manager/archive/v${VIRT_VER}.tar.gz"
notify_n "[WARN] Using virt-install ${VIRT_VER} from ${VIRT_TGZ}" 3
if [ ! -e "${VIRT_TGZ}" ]; then
curl -L "${VIRT_URL}" -o "${VIRT_TGZ}"
mkdir -p "${image_dir}/virt-manager"
tar xzf "${VIRT_TGZ}" -C "${image_dir}/virt-manager" --strip-components=1
fi
fi
}
function do_udev_cfg {
local _conf='/etc/udev/rules.d/99-opnfv-fuel-vnet-mtu.rules'
# http://linuxaleph.blogspot.com/2013/01/how-to-network-jumbo-frames-to-kvm-guest.html
echo 'SUBSYSTEM=="net", ACTION=="add|change", KERNEL=="vnet*", RUN+="/bin/sh -c '"'/bin/sleep 1; /sbin/ip link set %k mtu 9000'\"" |& sudo tee "${_conf}"
echo 'SUBSYSTEM=="net", ACTION=="add|change", KERNEL=="*-nic", RUN+="/bin/sh -c '"'/bin/sleep 1; /sbin/ip link set %k mtu 9000'\"" |& sudo tee -a "${_conf}"
sudo udevadm control --reload
sudo udevadm trigger
}
function do_sysctl_cfg {
local _conf='/etc/sysctl.d/99-opnfv-fuel-bridge.conf'
# https://wiki.libvirt.org/page/Net.bridge.bridge-nf-call_and_sysctl.conf
if modprobe br_netfilter bridge; then
echo 'net.bridge.bridge-nf-call-arptables = 0' |& sudo tee "${_conf}"
echo 'net.bridge.bridge-nf-call-iptables = 0' |& sudo tee -a "${_conf}"
echo 'net.bridge.bridge-nf-call-ip6tables = 0' |& sudo tee -a "${_conf}"
# Some distros / sysadmins explicitly blacklist br_netfilter
sudo sysctl -q -p "${_conf}" || true
fi
}
function generate_ssh_key {
# shellcheck disable=SC2155
local mcp_ssh_key=$(basename "${SSH_KEY}")
local user=${USER}
if [ -n "${SUDO_USER}" ] && [ "${SUDO_USER}" != 'root' ]; then
user=${SUDO_USER}
fi
if [ -f "${SSH_KEY}" ]; then
cp "${SSH_KEY}" .
ssh-keygen -f "${mcp_ssh_key}" -y > "${mcp_ssh_key}.pub"
fi
[ -f "${mcp_ssh_key}" ] || ssh-keygen -f "${mcp_ssh_key}" -N ''
sudo install -D -o "${user}" -m 0600 "${mcp_ssh_key}" "${SSH_KEY}"
}
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