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 "     -c <orchestrator> deploy osm services using container <orchestrator>. Valid values are <k8s> or <swarm>.  If -c is not used then osm will be deployed using default orchestrator. When used with --uninstall, osm services deployed by the orchestrator will be uninstalled"
    echo -e "     -s <stack name> or <namespace>  user defined stack name when installed using swarm or namespace when installed using k8s, 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 "     -P <VCA pubkey> use VCA/juju public key file"
    echo -e "     -C <VCA cacert> use VCA/juju CA certificate file"
    echo -e "     -A <VCA apiproxy> use VCA/juju API proxy"
    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 (LW-UI, NBI, LCM, RO, MON, POL, KAFKA, MONGO, PROMETHEUS, KEYSTONE-DB, 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 "     --k8s_monitor:  install the OSM kubernetes moitoring with prometheus and grafana"
    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() {
    if [ -n "$KUBERNETES" ]; then
        k8_volume=$1
        echo "Removing ${k8_volume}"
        $WORKDIR_SUDO rm -rf ${k8_volume}
    else
        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
    fi
}

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

function remove_iptables() {
    stack=$1
    if [ -z "$OSM_VCA_HOST" ]; then
        OSM_VCA_HOST=`sg lxd -c "juju show-controller ${stack}"|grep api-endpoints|awk -F\' '{print $2}'|awk -F\: '{print $1}'`
        [ -z "$OSM_VCA_HOST" ] && FATAL "Cannot obtain juju controller IP address"
    fi

    if sudo iptables -t nat -C PREROUTING -p tcp -m tcp --dport 17070 -j DNAT --to-destination $OSM_VCA_HOST; then
        sudo iptables -t nat -D PREROUTING -p tcp -m tcp --dport 17070 -j DNAT --to-destination $OSM_VCA_HOST
        sudo netfilter-persistent save
    fi
}

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
}

#removes osm deployments and services
function remove_k8s_namespace() {
    kubectl delete ns $1
}

#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 $OSM_DOCKER_WORK_DIR/osm_elk
        fi
    else
        echo -e "\nUninstalling OSM"
        if [ -n "$KUBERNETES" ]; then
            if [ -n "$K8S_MONITOR" ]; then
                # uninstall OSM MONITORING
                uninstall_k8s_monitoring
            fi
            remove_k8s_namespace $OSM_STACK_NAME
        else

            remove_stack $OSM_STACK_NAME
            remove_stack osm_elk
            uninstall_prometheus_nodeexporter
        fi
        echo "Now osm docker images and volumes will be deleted"
        newgrp docker << EONG
        docker image rm ${DOCKER_USER}/ro:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/lcm:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/light-ui:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/keystone:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/nbi:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/mon:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/pol:${OSM_DOCKER_TAG}
        docker image rm ${DOCKER_USER}/osmclient:${OSM_DOCKER_TAG}
EONG

        if [ -n "$KUBERNETES" ]; then
            OSM_NAMESPACE_VOL="${OSM_HOST_VOL}/${OSM_STACK_NAME}"
            remove_volumes $OSM_NAMESPACE_VOL
        else
            remove_volumes $OSM_STACK_NAME
            remove_network $OSM_STACK_NAME
        fi
        remove_iptables $OSM_STACK_NAME
        echo "Removing $OSM_DOCKER_WORK_DIR"
        $WORKDIR_SUDO rm -rf $OSM_DOCKER_WORK_DIR
        sg lxd -c "juju destroy-controller --destroy-all-models --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(){
    echo "FATAL error: Cannot install OSM due to \"$1\""
    exit 1
}

#Update RO, SO and UI:
function update(){
    echo -e "\nUpdating components"

    echo -e "     Updating RO"
    CONTAINER="RO"
    MDG="RO"
    INSTALL_FOLDER="/opt/openmano"
    echo -e "     Fetching the repo"
    lxc exec $CONTAINER -- git -C $INSTALL_FOLDER fetch --all
    BRANCH=""
    BRANCH=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status -sb | head -n1 | sed -n 's/^## \(.*\).*/\1/p'|awk '{print $1}' |sed 's/\(.*\)\.\.\..*/\1/'`
    [ -z "$BRANCH" ] && FATAL "Could not find the current branch in use in the '$MDG'"
    CURRENT=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status |head -n1`
    CURRENT_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse HEAD`
    echo "         FROM: $CURRENT ($CURRENT_COMMIT_ID)"
    # COMMIT_ID either was  previously set with -b option, or is an empty string
    CHECKOUT_ID=$COMMIT_ID
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" == "HEAD" ] && CHECKOUT_ID="tags/$LATEST_STABLE_DEVOPS"
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" != "HEAD" ] && CHECKOUT_ID="$BRANCH"
    if [[ $CHECKOUT_ID == "tags/"* ]]; then
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-list -n 1 $CHECKOUT_ID`
    else
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse origin/$CHECKOUT_ID`
    fi
    echo "         TO: $CHECKOUT_ID ($REMOTE_COMMIT_ID)"
    if [ "$CURRENT_COMMIT_ID" == "$REMOTE_COMMIT_ID" ]; then
        echo "         Nothing to be done."
    else
        echo "         Update required."
        lxc exec $CONTAINER -- service osm-ro stop
        lxc exec $CONTAINER -- git -C /opt/openmano stash
        lxc exec $CONTAINER -- git -C /opt/openmano pull --rebase
        lxc exec $CONTAINER -- git -C /opt/openmano checkout $CHECKOUT_ID
        lxc exec $CONTAINER -- git -C /opt/openmano stash pop
        lxc exec $CONTAINER -- /opt/openmano/database_utils/migrate_mano_db.sh
        lxc exec $CONTAINER -- service osm-ro start
    fi
    echo

    echo -e "     Updating SO and UI"
    CONTAINER="SO-ub"
    MDG="SO"
    INSTALL_FOLDER=""   # To be filled in
    echo -e "     Fetching the repo"
    lxc exec $CONTAINER -- git -C $INSTALL_FOLDER fetch --all
    BRANCH=""
    BRANCH=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status -sb | head -n1 | sed -n 's/^## \(.*\).*/\1/p'|awk '{print $1}' |sed 's/\(.*\)\.\.\..*/\1/'`
    [ -z "$BRANCH" ] && FATAL "Could not find the current branch in use in the '$MDG'"
    CURRENT=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status |head -n1`
    CURRENT_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse HEAD`
    echo "         FROM: $CURRENT ($CURRENT_COMMIT_ID)"
    # COMMIT_ID either was  previously set with -b option, or is an empty string
    CHECKOUT_ID=$COMMIT_ID
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" == "HEAD" ] && CHECKOUT_ID="tags/$LATEST_STABLE_DEVOPS"
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" != "HEAD" ] && CHECKOUT_ID="$BRANCH"
    if [[ $CHECKOUT_ID == "tags/"* ]]; then
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-list -n 1 $CHECKOUT_ID`
    else
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse origin/$CHECKOUT_ID`
    fi
    echo "         TO: $CHECKOUT_ID ($REMOTE_COMMIT_ID)"
    if [ "$CURRENT_COMMIT_ID" == "$REMOTE_COMMIT_ID" ]; then
        echo "         Nothing to be done."
    else
        echo "         Update required."
        # Instructions to be added
        # lxc exec SO-ub -- ...
    fi
    echo
    echo -e "Updating MON Container"
    CONTAINER="MON"
    MDG="MON"
    INSTALL_FOLDER="/root/MON"
    echo -e "     Fetching the repo"
    lxc exec $CONTAINER -- git -C $INSTALL_FOLDER fetch --all
    BRANCH=""
    BRANCH=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status -sb | head -n1 | sed -n 's/^## \(.*\).*/\1/p'|awk '{print $1}' |sed 's/\(.*\)\.\.\..*/\1/'`
    [ -z "$BRANCH" ] && FATAL "Could not find the current branch in use in the '$MDG'"
    CURRENT=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER status |head -n1`
    CURRENT_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse HEAD`
    echo "         FROM: $CURRENT ($CURRENT_COMMIT_ID)"
    # COMMIT_ID either was  previously set with -b option, or is an empty string
    CHECKOUT_ID=$COMMIT_ID
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" == "HEAD" ] && CHECKOUT_ID="tags/$LATEST_STABLE_DEVOPS"
    [ -z "$CHECKOUT_ID" ] && [ "$BRANCH" != "HEAD" ] && CHECKOUT_ID="$BRANCH"
    if [[ $CHECKOUT_ID == "tags/"* ]]; then
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-list -n 1 $CHECKOUT_ID`
    else
        REMOTE_COMMIT_ID=`lxc exec $CONTAINER -- git -C $INSTALL_FOLDER rev-parse origin/$CHECKOUT_ID`
    fi
    echo "         TO: $CHECKOUT_ID ($REMOTE_COMMIT_ID)"
    if [ "$CURRENT_COMMIT_ID" == "$REMOTE_COMMIT_ID" ]; then
        echo "         Nothing to be done."
    else
        echo "         Update required."
    fi
    echo
}

function so_is_up() {
    if [ -n "$1" ]; then
        SO_IP=$1
    else
        SO_IP=`lxc list SO-ub -c 4|grep eth0 |awk '{print $2}'`
    fi
    time=0
    step=5
    timelength=300
    while [ $time -le $timelength ]
    do
        if [[ `curl -k -X GET   https://$SO_IP:8008/api/operational/vcs/info \
                -H 'accept: application/vnd.yang.data+json' \
                -H 'authorization: Basic YWRtaW46YWRtaW4=' \
                -H 'cache-control: no-cache' 2> /dev/null | jq  '.[].components.component_info[] | select(.component_name=="RW.Restconf")' 2>/dev/null | grep "RUNNING" | wc -l` -eq 1 ]]
        then
            echo "RW.Restconf running....SO is up"
            return 0
        fi

        sleep $step
        echo -n "."
        time=$((time+step))
    done

    FATAL "OSM Failed to startup. SO failed to startup"
}

function vca_is_up() {
    if [[ `lxc exec VCA -- juju status | grep "osm" | wc -l` -eq 1 ]]; then
            echo "VCA is up and running"
            return 0
    fi

    FATAL "OSM Failed to startup. VCA failed to startup"
}

function mon_is_up() {
    if [[ `curl http://$RO_IP:9090/openmano/ | grep "works" | wc -l` -eq 1 ]]; then
            echo "MON is up and running"
            return 0
    fi

    FATAL "OSM Failed to startup. MON failed to startup"
}

function ro_is_up() {
    if [ -n "$1" ]; then
        RO_IP=$1
    else
        RO_IP=`lxc list RO -c 4|grep eth0 |awk '{print $2}'`
    fi
    time=0
    step=2
    timelength=20
    while [ $time -le $timelength ]; do
        if [[ `curl http://$RO_IP:9090/openmano/ | grep "works" | wc -l` -eq 1 ]]; then
            echo "RO is up and running"
            return 0
        fi
        sleep $step
        echo -n "."
        time=$((time+step))
    done

    FATAL "OSM Failed to startup. RO failed to startup"
}


function configure_RO(){
    . $OSM_DEVOPS/installers/export_ips
    echo -e "       Configuring RO"
    lxc exec RO -- sed -i -e "s/^\#\?log_socket_host:.*/log_socket_host: $SO_CONTAINER_IP/g" /etc/osm/openmanod.cfg
    lxc exec RO -- service osm-ro restart

    ro_is_up

    lxc exec RO -- openmano tenant-delete -f osm >/dev/null
    lxc exec RO -- openmano tenant-create osm > /dev/null
    lxc exec RO -- sed -i '/export OPENMANO_TENANT=osm/d' .bashrc
    lxc exec RO -- sed -i '$ i export OPENMANO_TENANT=osm' .bashrc
    lxc exec RO -- sh -c 'echo "export OPENMANO_TENANT=osm" >> .bashrc'
}

function configure_VCA(){
    echo -e "       Configuring VCA"
    JUJU_PASSWD=$(generate_secret)
    echo -e "$JUJU_PASSWD\n$JUJU_PASSWD" | lxc exec VCA -- juju change-user-password
}

function configure_SOUI(){
    . $OSM_DEVOPS/installers/export_ips
    JUJU_CONTROLLER_IP=`lxc exec VCA -- lxc list -c 4 |grep eth0 |awk '{print $2}'`
    RO_TENANT_ID=`lxc exec RO -- openmano tenant-list osm |awk '{print $1}'`

    echo -e " Configuring MON"
    #Information to be added about SO socket for logging

    echo -e "       Configuring SO"
    sudo route add -host $JUJU_CONTROLLER_IP gw $VCA_CONTAINER_IP
    sudo ip route add 10.44.127.0/24 via $VCA_CONTAINER_IP
    sudo sed -i "$ i route add -host $JUJU_CONTROLLER_IP gw $VCA_CONTAINER_IP" /etc/rc.local
    sudo sed -i "$ i ip route add 10.44.127.0/24 via $VCA_CONTAINER_IP" /etc/rc.local
    # make journaling persistent
    lxc exec SO-ub -- mkdir -p /var/log/journal
    lxc exec SO-ub -- systemd-tmpfiles --create --prefix /var/log/journal
    lxc exec SO-ub -- systemctl restart systemd-journald

    echo RIFT_EXTERNAL_ADDRESS=$DEFAULT_IP | lxc exec SO-ub -- tee -a /usr/rift/etc/default/launchpad

    lxc exec SO-ub -- systemctl restart launchpad

    so_is_up $SO_CONTAINER_IP

    #delete existing config agent (could be there on reconfigure)
    curl -k --request DELETE \
      --url https://$SO_CONTAINER_IP:8008/api/config/config-agent/account/osmjuju \
      --header 'accept: application/vnd.yang.data+json' \
      --header 'authorization: Basic YWRtaW46YWRtaW4=' \
      --header 'cache-control: no-cache' \
      --header 'content-type: application/vnd.yang.data+json' &> /dev/null

    result=$(curl -k --request POST \
      --url https://$SO_CONTAINER_IP:8008/api/config/config-agent \
      --header 'accept: application/vnd.yang.data+json' \
      --header 'authorization: Basic YWRtaW46YWRtaW4=' \
      --header 'cache-control: no-cache' \
      --header 'content-type: application/vnd.yang.data+json' \
      --data '{"account": [ { "name": "osmjuju", "account-type": "juju", "juju": { "ip-address": "'$JUJU_CONTROLLER_IP'", "port": "17070", "user": "admin", "secret": "'$JUJU_PASSWD'" }  }  ]}')
    [[ $result =~ .*success.* ]] || FATAL "Failed config-agent configuration: $result"

    #R1/R2 config line
    #result=$(curl -k --request PUT \
    #  --url https://$SO_CONTAINER_IP:8008/api/config/resource-orchestrator \
    #  --header 'accept: application/vnd.yang.data+json' \
    #  --header 'authorization: Basic YWRtaW46YWRtaW4=' \
    #  --header 'cache-control: no-cache' \
    #  --header 'content-type: application/vnd.yang.data+json' \
    #  --data '{ "openmano": { "host": "'$RO_CONTAINER_IP'", "port": "9090", "tenant-id": "'$RO_TENANT_ID'" }, "name": "osmopenmano", "account-type": "openmano" }')

    result=$(curl -k --request PUT \
      --url https://$SO_CONTAINER_IP:8008/api/config/project/default/ro-account/account \
      --header 'accept: application/vnd.yang.data+json' \
      --header 'authorization: Basic YWRtaW46YWRtaW4=' \
      --header 'cache-control: no-cache'   \
      --header 'content-type: application/vnd.yang.data+json' \
      --data '{"rw-ro-account:account": [ { "openmano": { "host": "'$RO_CONTAINER_IP'", "port": "9090", "tenant-id": "'$RO_TENANT_ID'"}, "name": "osmopenmano", "ro-account-type": "openmano" }]}')
    [[ $result =~ .*success.* ]] || FATAL "Failed resource-orchestrator configuration: $result"

    result=$(curl -k --request PATCH \
      --url https://$SO_CONTAINER_IP:8008/v2/api/config/openidc-provider-config/rw-ui-client/redirect-uri \
      --header 'accept: application/vnd.yang.data+json' \
      --header 'authorization: Basic YWRtaW46YWRtaW4=' \
      --header 'cache-control: no-cache'   \
      --header 'content-type: application/vnd.yang.data+json' \
      --data '{"redirect-uri": "https://'$DEFAULT_IP':8443/callback" }')
    [[ $result =~ .*success.* ]] || FATAL "Failed redirect-uri configuration: $result"

    result=$(curl -k --request PATCH \
      --url https://$SO_CONTAINER_IP:8008/v2/api/config/openidc-provider-config/rw-ui-client/post-logout-redirect-uri \
      --header 'accept: application/vnd.yang.data+json' \
      --header 'authorization: Basic YWRtaW46YWRtaW4=' \
      --header 'cache-control: no-cache'   \
      --header 'content-type: application/vnd.yang.data+json' \
      --data '{"post-logout-redirect-uri": "https://'$DEFAULT_IP':8443/?api_server=https://'$DEFAULT_IP'" }')
    [[ $result =~ .*success.* ]] || FATAL "Failed post-logout-redirect-uri configuration: $result"

    lxc exec SO-ub -- tee /etc/network/interfaces.d/60-rift.cfg <<EOF
auto lo:1
iface lo:1 inet static
        address  $DEFAULT_IP
        netmask 255.255.255.255
EOF
    lxc exec SO-ub ifup lo:1
}

#Configure RO, VCA, and SO with the initial configuration:
#  RO -> tenant:osm, logs to be sent to SO
#  VCA -> juju-password
#  SO -> route to Juju Controller, add RO account, add VCA account
function configure(){
    #Configure components
    echo -e "\nConfiguring components"
    configure_RO
    configure_VCA
    configure_SOUI
}

function install_lxd() {
    sudo apt-get update
    sudo apt-get install -y lxd
    newgrp lxd
    lxd init --auto
    lxd waitready
    lxc network create lxdbr0 ipv4.address=auto ipv4.nat=true ipv6.address=none ipv6.nat=false
    DEFAULT_INTERFACE=$(route -n | awk '$1~/^0.0.0.0/ {print $8}')
    DEFAULT_MTU=$(ip addr show $DEFAULT_INTERFACE | perl -ne 'if (/mtu\s(\d+)/) {print $1;}')
    lxc profile device set default eth0 mtu $DEFAULT_MTU
    #sudo systemctl stop lxd-bridge
    #sudo systemctl --system daemon-reload
    #sudo systemctl enable lxd-bridge
    #sudo systemctl start lxd-bridge
}

function ask_user(){
    # ask to the user and parse a response among 'y', 'yes', 'n' or 'no'. Case insensitive
    # Params: $1 text to ask;   $2 Action by default, can be 'y' for yes, 'n' for no, other or empty for not allowed
    # Return: true(0) if user type 'yes'; false (1) if user type 'no'
    read -e -p "$1" USER_CONFIRMATION
    while true ; do
        [ -z "$USER_CONFIRMATION" ] && [ "$2" == 'y' ] && return 0
        [ -z "$USER_CONFIRMATION" ] && [ "$2" == 'n' ] && return 1
        [ "${USER_CONFIRMATION,,}" == "yes" ] || [ "${USER_CONFIRMATION,,}" == "y" ] && return 0
        [ "${USER_CONFIRMATION,,}" == "no" ]  || [ "${USER_CONFIRMATION,,}" == "n" ] && return 1
        read -e -p "Please type 'yes' or 'no': " USER_CONFIRMATION
    done
}

function launch_container_from_lxd(){
    export OSM_MDG=$1
    OSM_load_config
    export OSM_BASE_IMAGE=$2
    if ! container_exists $OSM_BUILD_CONTAINER; then
        CONTAINER_OPTS=""
        [[ "$OSM_BUILD_CONTAINER_PRIVILEGED" == yes ]] && CONTAINER_OPTS="$CONTAINER_OPTS -c security.privileged=true"
        [[ "$OSM_BUILD_CONTAINER_ALLOW_NESTED" == yes ]] && CONTAINER_OPTS="$CONTAINER_OPTS -c security.nesting=true"
        create_container $OSM_BASE_IMAGE $OSM_BUILD_CONTAINER $CONTAINER_OPTS
        wait_container_up $OSM_BUILD_CONTAINER
    fi
}

function install_osmclient(){
    CLIENT_RELEASE=${RELEASE#"-R "}
    CLIENT_REPOSITORY_KEY="OSM%20ETSI%20Release%20Key.gpg"
    CLIENT_REPOSITORY=${REPOSITORY#"-r "}
    CLIENT_REPOSITORY_BASE=${REPOSITORY_BASE#"-u "}
    key_location=$CLIENT_REPOSITORY_BASE/$CLIENT_RELEASE/$CLIENT_REPOSITORY_KEY
    curl $key_location | sudo apt-key add -
    sudo add-apt-repository -y "deb [arch=amd64] $CLIENT_REPOSITORY_BASE/$CLIENT_RELEASE $CLIENT_REPOSITORY osmclient IM"
    sudo apt-get update
    sudo apt-get install -y python3-pip
    sudo -H LC_ALL=C python3 -m pip install -U pip
    sudo -H LC_ALL=C python3 -m pip install -U python-magic pyangbind
    sudo apt-get install -y python3-osm-im python3-osmclient
    #sed 's,OSM_SOL005=[^$]*,OSM_SOL005=True,' -i ${HOME}/.bashrc
    #echo 'export OSM_HOSTNAME=localhost' >> ${HOME}/.bashrc
    #echo 'export OSM_SOL005=True' >> ${HOME}/.bashrc
    [ -z "$INSTALL_LIGHTWEIGHT" ] && export OSM_HOSTNAME=`lxc list | awk '($2=="SO-ub"){print $6}'`
    [ -z "$INSTALL_LIGHTWEIGHT" ] && export OSM_RO_HOSTNAME=`lxc list | awk '($2=="RO"){print $6}'`
    echo -e "\nOSM client installed"
    if [ -z "$INSTALL_LIGHTWEIGHT" ]; then
        echo -e "You might be interested in adding the following OSM client env variables to your .bashrc file:"
        echo "     export OSM_HOSTNAME=${OSM_HOSTNAME}"
        echo "     export OSM_RO_HOSTNAME=${OSM_RO_HOSTNAME}"
    else
        echo -e "OSM client assumes that OSM host is running in localhost (127.0.0.1)."
        echo -e "In case you want to interact with a different OSM host, you will have to configure this env variable in your .bashrc file:"
        echo "     export OSM_HOSTNAME=<OSM_host>"
    fi
    return 0
}

function install_prometheus_nodeexporter(){
    sudo useradd --no-create-home --shell /bin/false node_exporter
    sudo wget -q https://github.com/prometheus/node_exporter/releases/download/v$PROMETHEUS_NODE_EXPORTER_TAG/node_exporter-$PROMETHEUS_NODE_EXPORTER_TAG.linux-amd64.tar.gz  -P /tmp/
    sudo tar -C /tmp -xf /tmp/node_exporter-$PROMETHEUS_NODE_EXPORTER_TAG.linux-amd64.tar.gz
    sudo cp /tmp/node_exporter-$PROMETHEUS_NODE_EXPORTER_TAG.linux-amd64/node_exporter /usr/local/bin
    sudo chown node_exporter:node_exporter /usr/local/bin/node_exporter
    sudo rm -rf node_exporter-$PROMETHEUS_NODE_EXPORTER_TAG.linux-amd64*
    sudo cp ${OSM_DEVOPS}/installers/docker/files/node_exporter.service /etc/systemd/system/node_exporter.service
    sudo systemctl daemon-reload
    sudo systemctl restart node_exporter
    sudo systemctl enable node_exporter
    return 0
}

function uninstall_prometheus_nodeexporter(){
    sudo systemctl stop node_exporter
    sudo systemctl disable node_exporter
    sudo rm /etc/systemd/system/node_exporter.service
    sudo systemctl daemon-reload
    sudo userdel node_exporter
    sudo rm /usr/local/bin/node_exporter
    return 0
}

function install_from_lxdimages(){
    LXD_RELEASE=${RELEASE#"-R "}
    if [ -n "$LXD_REPOSITORY_PATH" ]; then
        LXD_IMAGE_DIR="$LXD_REPOSITORY_PATH"
    else
        LXD_IMAGE_DIR="$(mktemp -d -q --tmpdir "osmimages.XXXXXX")"
        trap 'rm -rf "$LXD_IMAGE_DIR"' EXIT
    fi
    echo -e "\nDeleting previous lxd images if they exist"
    lxc image show osm-ro &>/dev/null && lxc image delete osm-ro
    lxc image show osm-vca &>/dev/null && lxc image delete osm-vca
    lxc image show osm-soui &>/dev/null && lxc image delete osm-soui
    echo -e "\nImporting osm-ro"
    [ -z "$LXD_REPOSITORY_PATH" ] && wget -O $LXD_IMAGE_DIR/osm-ro.tar.gz $LXD_REPOSITORY_BASE/$LXD_RELEASE/osm-ro.tar.gz
    lxc image import $LXD_IMAGE_DIR/osm-ro.tar.gz --alias osm-ro
    rm -f $LXD_IMAGE_DIR/osm-ro.tar.gz
    echo -e "\nImporting osm-vca"
    [ -z "$LXD_REPOSITORY_PATH" ] && wget -O $LXD_IMAGE_DIR/osm-vca.tar.gz $LXD_REPOSITORY_BASE/$LXD_RELEASE/osm-vca.tar.gz
    lxc image import $LXD_IMAGE_DIR/osm-vca.tar.gz --alias osm-vca
    rm -f $LXD_IMAGE_DIR/osm-vca.tar.gz
    echo -e "\nImporting osm-soui"
    [ -z "$LXD_REPOSITORY_PATH" ] && wget -O $LXD_IMAGE_DIR/osm-soui.tar.gz $LXD_REPOSITORY_BASE/$LXD_RELEASE/osm-soui.tar.gz
    lxc image import $LXD_IMAGE_DIR/osm-soui.tar.gz --alias osm-soui
    rm -f $LXD_IMAGE_DIR/osm-soui.tar.gz
    launch_container_from_lxd RO osm-ro
    ro_is_up && track RO
    launch_container_from_lxd VCA osm-vca
    vca_is_up && track VCA
    launch_container_from_lxd MON osm-mon
    mon_is_up && track MON
    launch_container_from_lxd SO osm-soui
    #so_is_up && track SOUI
    track SOUI
}

function install_docker_ce() {
    # installs and configures Docker CE
    echo "Installing Docker CE ..."
    sudo apt-get -qq update
    sudo apt-get install -y apt-transport-https ca-certificates software-properties-common
    curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
    sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
    sudo apt-get -qq update
    sudo apt-get install -y docker-ce
    echo "Adding user to group 'docker'"
    sudo groupadd -f docker
    sudo usermod -aG docker $USER
    sleep 2
    sudo service docker restart
    echo "... restarted Docker service"
    sg docker -c "docker version" || FATAL "Docker installation failed"
    echo "... Docker CE installation done"
    return 0
}

function install_docker_compose() {
    # installs and configures docker-compose
    echo "Installing Docker Compose ..."
    sudo curl -L https://github.com/docker/compose/releases/download/1.18.0/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose
    sudo chmod +x /usr/local/bin/docker-compose
    echo "... Docker Compose installation done"
}

function install_juju() {
    echo "Installing juju"
    sudo snap install juju --classic
    [ -z "$INSTALL_NOLXD" ] && sudo dpkg-reconfigure -p medium lxd
    [[ ":$PATH": != *":/snap/bin:"* ]] && PATH="/snap/bin:${PATH}"
    echo "Finished installation of juju"
    return 0
}

function juju_createcontroller() {
    if ! juju show-controller $OSM_STACK_NAME &> /dev/null; then
        # Not found created, create the controller
        sg lxd -c "juju bootstrap --bootstrap-series=xenial localhost $OSM_STACK_NAME"
    fi
    [ $(juju controllers | awk "/^${OSM_STACK_NAME}[\*| ]/{print $1}"|wc -l) -eq 1 ] || FATAL "Juju installation failed"
}

function juju_createproxy() {
    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

    if ! sudo iptables -t nat -C PREROUTING -p tcp -m tcp --dport 17070 -j DNAT --to-destination $OSM_VCA_HOST; then
        sudo iptables -t nat -A PREROUTING -p tcp -m tcp --dport 17070 -j DNAT --to-destination $OSM_VCA_HOST
        sudo netfilter-persistent save
    fi
}

function generate_docker_images() {
    echo "Pulling and generating docker images"
    _build_from=$COMMIT_ID
    [ -z "$_build_from" ] && _build_from="master"

    echo "OSM Docker images generated from $_build_from"

    BUILD_ARGS+=(--build-arg REPOSITORY="$REPOSITORY")
    BUILD_ARGS+=(--build-arg RELEASE="$RELEASE")
    BUILD_ARGS+=(--build-arg REPOSITORY_KEY="$REPOSITORY_KEY")
    BUILD_ARGS+=(--build-arg REPOSITORY_BASE="$REPOSITORY_BASE")

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q KAFKA ; then
        sg docker -c "docker pull wurstmeister/zookeeper" || FATAL "cannot get zookeeper docker image"
        sg docker -c "docker pull wurstmeister/kafka:${KAFKA_TAG}" || FATAL "cannot get kafka docker image"
    fi

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q MONGO ; then
        sg docker -c "docker pull mongo" || FATAL "cannot get mongo docker image"
    fi

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q PROMETHEUS ; then
        sg docker -c "docker pull prom/prometheus:${PROMETHEUS_TAG}" || FATAL "cannot get prometheus docker image"
    fi

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q GRAFANA ; then
        sg docker -c "docker pull grafana/grafana:${GRAFANA_TAG}" || FATAL "cannot get grafana docker image"
    fi    

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q NBI || echo $TO_REBUILD | grep -q KEYSTONE-DB ; then
        sg docker -c "docker pull mariadb:${KEYSTONEDB_TAG}" || FATAL "cannot get keystone-db docker image"
    fi

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q RO ; then
        sg docker -c "docker pull mysql:5" || FATAL "cannot get mysql docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/mon:${OSM_DOCKER_TAG}" || FATAL "cannot pull MON docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q MON ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/MON
        git -C ${LWTEMPDIR}/MON checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/MON -f ${LWTEMPDIR}/MON/docker/Dockerfile -t ${DOCKER_USER}/mon --no-cache" || FATAL "cannot build MON docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/pol:${OSM_DOCKER_TAG}" || FATAL "cannot pull POL docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q POL ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/POL
        git -C ${LWTEMPDIR}/POL checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/POL -f ${LWTEMPDIR}/POL/docker/Dockerfile -t ${DOCKER_USER}/pol --no-cache" || FATAL "cannot build POL docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/nbi:${OSM_DOCKER_TAG}" || FATAL "cannot pull NBI docker image"
        sg docker -c "docker pull ${DOCKER_USER}/keystone:${OSM_DOCKER_TAG}" || FATAL "cannot pull KEYSTONE docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q NBI ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/NBI
        git -C ${LWTEMPDIR}/NBI checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/NBI -f ${LWTEMPDIR}/NBI/Dockerfile.local -t ${DOCKER_USER}/nbi --no-cache" || FATAL "cannot build NBI docker image"
        sg docker -c "docker build ${LWTEMPDIR}/NBI/keystone -f ${LWTEMPDIR}/NBI/keystone/Dockerfile -t ${DOCKER_USER}/keystone --no-cache" || FATAL "cannot build KEYSTONE docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/ro:${OSM_DOCKER_TAG}" || FATAL "cannot pull RO docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q RO ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/RO
        git -C ${LWTEMPDIR}/RO checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/RO -f ${LWTEMPDIR}/RO/Dockerfile-local -t ${DOCKER_USER}/ro --no-cache" || FATAL "cannot build RO docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/lcm:${OSM_DOCKER_TAG}" || FATAL "cannot pull LCM RO docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q LCM ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/LCM
        git -C ${LWTEMPDIR}/LCM checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/LCM -f ${LWTEMPDIR}/LCM/Dockerfile.local -t ${DOCKER_USER}/lcm --no-cache" || FATAL "cannot build LCM docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/light-ui:${OSM_DOCKER_TAG}" || FATAL "cannot pull light-ui docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q LW-UI ; then
        git -C ${LWTEMPDIR} clone https://osm.etsi.org/gerrit/osm/LW-UI
        git -C ${LWTEMPDIR}/LW-UI checkout ${COMMIT_ID}
        sg docker -c "docker build ${LWTEMPDIR}/LW-UI -f ${LWTEMPDIR}/LW-UI/docker/Dockerfile -t ${DOCKER_USER}/light-ui --no-cache" || FATAL "cannot build LW-UI docker image"
    fi

    if [ -n "$PULL_IMAGES" ]; then
        sg docker -c "docker pull ${DOCKER_USER}/osmclient:${OSM_DOCKER_TAG}" || FATAL "cannot pull osmclient docker image"
    elif [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q LW-osmclient; then
        sg docker -c "docker build -t ${DOCKER_USER}/osmclient ${BUILD_ARGS[@]} -f $OSM_DEVOPS/docker/osmclient ."
    fi

    if [ -z "$TO_REBUILD" ] || echo $TO_REBUILD | grep -q PROMETHEUS ; then
        sg docker -c "docker pull google/cadvisor:${PROMETHEUS_CADVISOR_TAG}" || FATAL "cannot get prometheus cadvisor docker image"
    fi    

    echo "Finished generation of docker images"
}

function cmp_overwrite() {
    file1="$1"
    file2="$2"
    if ! $(cmp "${file1}" "${file2}" >/dev/null 2>&1); then
        if [ -f "${file2}" ]; then
            ask_user "The file ${file2} already exists. Overwrite (y/N)? " n && cp -b ${file1} ${file2}
        else
            cp -b ${file1} ${file2}
        fi
    fi
}

function generate_docker_env_files() {
    echo "Doing a backup of existing env files"
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/keystone-db.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/keystone.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/lcm.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/lwui.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/mon.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/nbi.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/pol.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/ro-db.env{,~}
    $WORKDIR_SUDO cp $OSM_DOCKER_WORK_DIR/ro.env{,~}

    echo "Generating docker env files"
    if [ -n "$KUBERNETES" ]; then
        #Kubernetes resources
        $WORKDIR_SUDO cp -bR ${OSM_DEVOPS}/installers/docker/osm_pods $OSM_DOCKER_WORK_DIR
    else
        # Docker-compose
        $WORKDIR_SUDO cp -b ${OSM_DEVOPS}/installers/docker/docker-compose.yaml $OSM_DOCKER_WORK_DIR/docker-compose.yaml

        # Prometheus
        $WORKDIR_SUDO cp -b ${OSM_DEVOPS}/installers/docker/files/prometheus.yml $OSM_DOCKER_WORK_DIR/prometheus.yml

        # Grafana & Prometheus Exporter files
        $WORKDIR_SUDO mkdir -p $OSM_DOCKER_WORK_DIR/files
        $WORKDIR_SUDO cp -b ${OSM_DEVOPS}/installers/docker/files/* $OSM_DOCKER_WORK_DIR/files/
    fi

    # LCM
    if [ ! -f $OSM_DOCKER_WORK_DIR/lcm.env ]; then
        echo "OSMLCM_DATABASE_COMMONKEY=${OSM_DATABASE_COMMONKEY}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    if ! grep -Fq "OSMLCM_VCA_HOST" $OSM_DOCKER_WORK_DIR/lcm.env; then
        echo "OSMLCM_VCA_HOST=${OSM_VCA_HOST}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    else
        $WORKDIR_SUDO sed -i "s|OSMLCM_VCA_HOST.*|OSMLCM_VCA_HOST=$OSM_VCA_HOST|g" $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    if ! grep -Fq "OSMLCM_VCA_SECRET" $OSM_DOCKER_WORK_DIR/lcm.env; then
        echo "OSMLCM_VCA_SECRET=${OSM_VCA_SECRET}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    else
        $WORKDIR_SUDO sed -i "s|OSMLCM_VCA_SECRET.*|OSMLCM_VCA_SECRET=$OSM_VCA_SECRET|g" $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    if ! grep -Fq "OSMLCM_VCA_PUBKEY" $OSM_DOCKER_WORK_DIR/lcm.env; then
        echo "OSMLCM_VCA_PUBKEY=\"${OSM_VCA_PUBKEY}\"" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    else
        $WORKDIR_SUDO sed -i "s|OSMLCM_VCA_PUBKEY.*|OSMLCM_VCA_PUBKEY=\"${OSM_VCA_PUBKEY}\"|g" $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    if ! grep -Fq "OSMLCM_VCA_CACERT" $OSM_DOCKER_WORK_DIR/lcm.env; then
       echo "OSMLCM_VCA_CACERT=${OSM_VCA_CACERT}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    else
       $WORKDIR_SUDO sed -i "s|OSMLCM_VCA_CACERT.*|OSMLCM_VCA_CACERT=${OSM_VCA_CACERT}|g" $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    if ! grep -Fq "OSMLCM_VCA_APIPROXY" $OSM_DOCKER_WORK_DIR/lcm.env; then
        echo "OSMLCM_VCA_APIPROXY=${OSM_VCA_APIPROXY}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lcm.env
    else
        $WORKDIR_SUDO sed -i "s|OSMLCM_VCA_APIPROXY.*|OSMLCM_VCA_APIPROXY=${OSM_VCA_APIPROXY}|g" $OSM_DOCKER_WORK_DIR/lcm.env
    fi

    # RO
    MYSQL_ROOT_PASSWORD=$(generate_secret)
    if [ ! -f $OSM_DOCKER_WORK_DIR/ro-db.env ]; then
        echo "MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}" |$WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/ro-db.env
    fi
    if [ ! -f $OSM_DOCKER_WORK_DIR/ro.env ]; then
        echo "RO_DB_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}" |$WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/ro.env
    fi

    # Keystone
    KEYSTONE_DB_PASSWORD=$(generate_secret)
    SERVICE_PASSWORD=$(generate_secret)
    if [ ! -f $OSM_DOCKER_WORK_DIR/keystone-db.env ]; then
        echo "MYSQL_ROOT_PASSWORD=${MYSQL_ROOT_PASSWORD}" |$WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/keystone-db.env
    fi
    if [ ! -f $OSM_DOCKER_WORK_DIR/keystone.env ]; then
        echo "ROOT_DB_PASSWORD=${MYSQL_ROOT_PASSWORD}" |$WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/keystone.env
        echo "KEYSTONE_DB_PASSWORD=${KEYSTONE_DB_PASSWORD}" |$WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/keystone.env
        echo "SERVICE_PASSWORD=${SERVICE_PASSWORD}" |$WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/keystone.env
    fi

    # NBI
    if [ ! -f $OSM_DOCKER_WORK_DIR/nbi.env ]; then
        echo "OSMNBI_AUTHENTICATION_SERVICE_PASSWORD=${SERVICE_PASSWORD}" |$WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/nbi.env
        echo "OSMNBI_DATABASE_COMMONKEY=${OSM_DATABASE_COMMONKEY}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/nbi.env
    fi

    # MON
    if [ ! -f $OSM_DOCKER_WORK_DIR/mon.env ]; then
        echo "OSMMON_DATABASE_COMMONKEY=${OSM_DATABASE_COMMONKEY}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
        echo "OSMMON_SQL_DATABASE_URI=mysql://root:${MYSQL_ROOT_PASSWORD}@mysql:3306/mon" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
    fi

    if ! grep -Fq "OS_NOTIFIER_URI" $OSM_DOCKER_WORK_DIR/mon.env; then
        echo "OS_NOTIFIER_URI=http://${DEFAULT_IP}:8662" |$WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
    else
        $WORKDIR_SUDO sed -i "s|OS_NOTIFIER_URI.*|OS_NOTIFIER_URI=http://$DEFAULT_IP:8662|g" $OSM_DOCKER_WORK_DIR/mon.env
    fi

    if ! grep -Fq "OSMMON_VCA_HOST" $OSM_DOCKER_WORK_DIR/mon.env; then
        echo "OSMMON_VCA_HOST=${OSM_VCA_HOST}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
    else
        $WORKDIR_SUDO sed -i "s|OSMMON_VCA_HOST.*|OSMMON_VCA_HOST=$OSM_VCA_HOST|g" $OSM_DOCKER_WORK_DIR/mon.env
    fi

    if ! grep -Fq "OSMMON_VCA_SECRET" $OSM_DOCKER_WORK_DIR/mon.env; then
        echo "OSMMON_VCA_SECRET=${OSM_VCA_SECRET}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
    else
        $WORKDIR_SUDO sed -i "s|OSMMON_VCA_SECRET.*|OSMMON_VCA_SECRET=$OSM_VCA_SECRET|g" $OSM_DOCKER_WORK_DIR/mon.env
    fi

    if ! grep -Fq "OSMMON_VCA_CACERT" $OSM_DOCKER_WORK_DIR/mon.env; then
       echo "OSMMON_VCA_CACERT=${OSM_VCA_CACERT}" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/mon.env
    else
       $WORKDIR_SUDO sed -i "s|OSMMON_VCA_CACERT.*|OSMMON_VCA_CACERT=${OSM_VCA_CACERT}|g" $OSM_DOCKER_WORK_DIR/mon.env
    fi


    # POL
    if [ ! -f $OSM_DOCKER_WORK_DIR/pol.env ]; then
        echo "OSMPOL_SQL_DATABASE_URI=mysql://root:${MYSQL_ROOT_PASSWORD}@mysql:3306/pol" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/pol.env
    fi

    # LW-UI
    if [ ! -f $OSM_DOCKER_WORK_DIR/lwui.env ]; then
        echo "OSMUI_SQL_DATABASE_URI=mysql://root:${MYSQL_ROOT_PASSWORD}@mysql:3306/lwui" | $WORKDIR_SUDO tee -a $OSM_DOCKER_WORK_DIR/lwui.env
    fi

    echo "Finished generation of docker env files"
}

function generate_osmclient_script () {
    echo "docker run -ti --network net${OSM_STACK_NAME} ${DOCKER_USER}/osmclient:${OSM_DOCKER_TAG}" | $WORKDIR_SUDO tee $OSM_DOCKER_WORK_DIR/osm
    $WORKDIR_SUDO chmod +x "$OSM_DOCKER_WORK_DIR/osm"
    echo "osmclient sidecar container can be found at: $OSM_DOCKER_WORK_DIR/osm"
}

#installs kubernetes packages
function install_kube() {
    sudo apt-get update && sudo apt-get install -y apt-transport-https
    curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
    sudo add-apt-repository "deb https://apt.kubernetes.io/ kubernetes-xenial main"
    sudo apt-get update
    echo "Installing Kubernetes Packages ..."
    sudo apt-get install -y kubelet=1.15.0-00 kubeadm=1.15.0-00 kubectl=1.15.0-00
}

#initializes kubernetes control plane
function init_kubeadm() {
    sudo swapoff -a
    sudo kubeadm init --config $1
    sleep 5
}

function kube_config_dir() {
    [ ! -d $K8S_MANIFEST_DIR ] && FATAL "Cannot Install Kubernetes"
    mkdir -p $HOME/.kube
    sudo cp /etc/kubernetes/admin.conf $HOME/.kube/config
    sudo chown $(id -u):$(id -g) $HOME/.kube/config
}

#deploys flannel as daemonsets
function deploy_cni_provider() {
    CNI_DIR="$(mktemp -d -q --tmpdir "flannel.XXXXXX")"
    trap 'rm -rf "${CNI_DIR}"' EXIT