full_install_osm.sh

#!/bin/bash
#   Copyright 2016 Telefónica Investigación y Desarrollo S.A.U.
#
#   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.

function usage(){
    echo -e "usage: $0 [OPTIONS]"
    echo -e "Install OSM from binaries or source code (by default, from binaries)"
    echo -e "  OPTIONS"
    echo -e "     -r <repo>:      use specified repository name for osm packages"
    echo -e "     -R <release>:   use specified release for osm binaries (deb packages, lxd images, ...)"
    echo -e "     -u <repo base>: use specified repository url for osm packages"
    echo -e "     -k <repo key>:  use specified repository public key url"
    echo -e "     -b <refspec>:   install OSM from source code using a specific branch (master, v2.0, ...) or tag"
    echo -e "                     -b master          (main dev branch)"
    echo -e "                     -b v2.0            (v2.0 branch)"
    echo -e "                     -b tags/v1.1.0     (a specific tag)"
    echo -e "                     ..."
    echo -e "     -s <stack name> user defined stack name, default is osm"
    echo -e "     -H <VCA host>   use specific juju host controller IP"
    echo -e "     -S <VCA secret> use VCA/juju secret key"
    echo -e "     --vimemu:       additionally deploy the VIM emulator as a docker container"
    echo -e "     --elk_stack:    additionally deploy an ELK docker stack for event logging"
    echo -e "     --pm_stack:     additionally deploy a Prometheus+Grafana stack for performance monitoring (PM)"
    echo -e "     -m <MODULE>:    install OSM but only rebuild the specified docker images (RO, LCM, NBI, LW-UI, MON, KAFKA, MONGO, NONE)"
    echo -e "     -o <ADDON>:     ONLY (un)installs one of the addons (vimemu, elk_stack, pm_stack)"
    echo -e "     -D <devops path> use local devops installation path"
    echo -e "     -w <work dir>   Location to store runtime installation"
    echo -e "     -t <docker tag> specify osm docker tag (default is latest)"
    echo -e "     --nolxd:        do not install and configure LXD, allowing unattended installations (assumes LXD is already installed and confifured)"
    echo -e "     --nodocker:     do not install docker, do not initialize a swarm (assumes docker is already installed and a swarm has been initialized)"
    echo -e "     --nojuju:       do not juju, assumes already installed"
    echo -e "     --nodockerbuild:do not build docker images (use existing locally cached images)"
    echo -e "     --nohostports:  do not expose docker ports to host (useful for creating multiple instances of osm on the same host)"
    echo -e "     --nohostclient: do not install the osmclient"
    echo -e "     --uninstall:    uninstall OSM: remove the containers and delete NAT rules"
    echo -e "     --source:       install OSM from source code using the latest stable tag"
    echo -e "     --develop:      (deprecated, use '-b master') install OSM from source code using the master branch"
    echo -e "     --soui:         install classic build of OSM (Rel THREE v3.1, based on LXD containers, with SO and UI)"
    echo -e "     --lxdimages:    (only for Rel THREE with --soui) download lxd images from OSM repository instead of creating them from scratch"
    echo -e "     --pullimages:   pull/run osm images from docker.io/opensourcemano"
    echo -e "     -l <lxd_repo>:  (only for Rel THREE with --soui) use specified repository url for lxd images"
    echo -e "     -p <path>:      (only for Rel THREE with --soui) use specified repository path for lxd images"
#    echo -e "     --reconfigure:  reconfigure the modules (DO NOT change NAT rules)"
    echo -e "     --nat:          (only for Rel THREE with --soui) install only NAT rules"
    echo -e "     --noconfigure:  (only for Rel THREE with --soui) DO NOT install osmclient, DO NOT install NAT rules, DO NOT configure modules"
#    echo -e "     --update:       update to the latest stable release or to the latest commit if using a specific branch"
    echo -e "     --showopts:     print chosen options and exit (only for debugging)"
    echo -e "     -y:             do not prompt for confirmation, assumes yes"
    echo -e "     -h / --help:    print this help"
}

#Uninstall OSM: remove containers
function uninstall(){
    echo -e "\nUninstalling OSM"
    if [ $RC_CLONE ] || [ -n "$TEST_INSTALLER" ]; then
        $OSM_DEVOPS/jenkins/host/clean_container RO
        $OSM_DEVOPS/jenkins/host/clean_container VCA
        $OSM_DEVOPS/jenkins/host/clean_container MON
        $OSM_DEVOPS/jenkins/host/clean_container SO
        #$OSM_DEVOPS/jenkins/host/clean_container UI
    else
        lxc stop RO && lxc delete RO
        lxc stop VCA && lxc delete VCA
        lxc stop MON && lxc delete MON
        lxc stop SO-ub && lxc delete SO-ub
    fi
    echo -e "\nDeleting imported lxd images if they exist"
    lxc image show osm-ro &>/dev/null && lxc image delete osm-ro
    lxc image show osm-vca &>/dev/null && lxc image delete osm-vca
    lxc image show osm-soui &>/dev/null && lxc image delete osm-soui
    return 0
}

# takes a juju/accounts.yaml file and returns the password specific
# for a controller. I wrote this using only bash tools to minimize 
# additions of other packages
function parse_juju_password {
   password_file="${HOME}/.local/share/juju/accounts.yaml"
   local controller_name=$1
   local s='[[:space:]]*' w='[a-zA-Z0-9_-]*' fs=$(echo @|tr @ '\034')
   sed -ne "s|^\($s\):|\1|" \
        -e "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" $password_file |
   awk -F$fs -v controller=$controller_name '{
      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])("_")}
         if (match(vn,controller) && match($2,"password")) {
             printf("%s",$3);
         }
      }
   }'
}

function generate_secret() {
    head /dev/urandom | tr -dc A-Za-z0-9 | head -c 32
}

function remove_volumes() {
    stack=$1
    volumes="mongo_db mon_db osm_packages ro_db"
    for volume in $volumes; do
        sg docker -c "docker volume rm ${stack}_${volume}"
    done
}

function remove_network() {
    stack=$1
    sg docker -c "docker network rm net${stack}"
}

function remove_stack() {
    stack=$1
    if sg docker -c "docker stack ps ${stack}" ; then
        echo -e "\nRemoving stack ${stack}" && sg docker -c "docker stack rm ${stack}"
        COUNTER=0
        result=1
        while [ ${COUNTER} -lt 30 ]; do
            result=$(sg docker -c "docker stack ps ${stack}" | wc -l)
            #echo "Dockers running: $result"
            if [ "${result}" == "0" ]; then
                break
            fi
            let COUNTER=COUNTER+1
            sleep 1
        done
        if [ "${result}" == "0" ]; then
            echo "All dockers of the stack ${stack} were removed"
        else
            FATAL "Some dockers of the stack ${stack} could not be removed. Could not clean it."
        fi
        sleep 5
    fi
}

#Uninstall lightweight OSM: remove dockers
function uninstall_lightweight() {
    if [ -n "$INSTALL_ONLY" ]; then
        if [ -n "$INSTALL_ELK" ]; then
            echo -e "\nUninstalling OSM ELK stack"
            remove_stack osm_elk
            $WORKDIR_SUDO rm -rf $OSM_DOCKER_WORK_DIR/osm_elk
        fi
        if [ -n "$INSTALL_PERFMON" ]; then
            echo -e "\nUninstalling OSM Performance Monitoring stack"
            remove_stack osm_metrics
            sg docker -c "docker image rm osm/kafka-exporter"
            $WORKDIR_SUDO rm -rf $OSM_DOCKER_WORK_DIR/osm_metrics
        fi
    else
        echo -e "\nUninstalling OSM"
        remove_stack $OSM_STACK_NAME
        remove_stack osm_elk
        remove_stack osm_metrics
        echo "Now osm docker images and volumes will be deleted"
        newgrp docker << EONG
        docker image rm ${DOCKERUSER}/ro
        docker image rm ${DOCKERUSER}/lcm
        docker image rm ${DOCKERUSER}/light-ui
        docker image rm ${DOCKERUSER}/keystone
        docker image rm ${DOCKERUSER}/nbi
        docker image rm ${DOCKERUSER}/mon
        docker image rm ${DOCKERUSER}/pm
        docker image rm ${DOCKERUSER}/kafka-exporter
EONG
        remove_volumes $OSM_STACK_NAME
        remove_network $OSM_STACK_NAME
        echo "Removing $OSM_DOCKER_WORK_DIR"
        $WORKDIR_SUDO rm -rf $OSM_DOCKER_WORK_DIR
        sg lxd -c "juju destroy-controller --yes $OSM_STACK_NAME"
    fi
    echo "Some docker images will be kept in case they are used by other docker stacks"
    echo "To remove them, just run 'docker image prune' in a terminal"
    return 0
}

#Configure NAT rules, based on the current IP addresses of containers
function nat(){
    echo -e "\nChecking required packages: iptables-persistent"
    dpkg -l iptables-persistent &>/dev/null || ! echo -e "    Not installed.\nInstalling iptables-persistent requires root privileges" || \
    sudo DEBIAN_FRONTEND=noninteractive apt-get -yq install iptables-persistent
    echo -e "\nConfiguring NAT rules"
    echo -e "   Required root privileges"
    sudo $OSM_DEVOPS/installers/nat_osm
}

function FATAL(){