#!/bin/bash -ue

# Copyright 2017 tsuru-now authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

set -eu

release=""
codename=""
host_ip=""
private_ip=""
host_name=""
set_interface=""
is_debug=""
docker_node=""
set_interface=""
install_func=install_all
pool="theonepool"
mongohost="127.0.0.1"
mongoport="27017"
dockerhost="127.0.0.1"
dockerport="2375"
registryhost=""
registryport="5000"
adminuser="admin@example.com"
adminpassword="admin123"
install_tsuru_source=0
tsuru_package_source="stable"
hook_url=https://raw.githubusercontent.com/tsuru/tsuru/master/misc/git-hooks/pre-receive
hook_name=pre-receive
git_envs=(A=B)
ext_repository=""
export DEBIAN_FRONTEND=noninteractive

declare -A DISTMAP=(
    [wheezy]=wheezy-backports
    [precise]=precise
    [saucy]=saucy
    [trusty]=trusty
    [utopic]=utopic
)

TSURU_CONF=$(cat <<EOF
listen: "0.0.0.0:8080"
host: http://{{{HOST_IP}}}:8080
debug: true
admin-team: admin

database:
  url: {{{MONGO_HOST}}}:{{{MONGO_PORT}}}
  name: tsurudb

git:
  unit-repo: /home/application/current
  api-server: http://127.0.0.1:8000

auth:
  user-registration: true
  scheme: native
routers:
  hipache:
    type: hipache
    domain: {{{HOST_NAME}}}
    redis-server: 127.0.0.1:6379
repo-manager: gandalf
provisioner: docker
queue:
  mongo-url: {{{MONGO_HOST}}}:{{{MONGO_PORT}}}
  mongo-database: tsuru_queue
pubsub:
  redis-host: 127.0.0.1
  redis-port: 6379
docker:
  bs:
    image: tsuru/bs:v1
    reporter-interval: 10
    socket: /var/run/docker.sock
  collection: docker_containers
  port-allocator: tsuru
  registry: {{{REGISTRY_HOST}}}:$registryport
  repository-namespace: tsuru
  router: hipache
  deploy-cmd: /var/lib/tsuru/deploy
  cluster:
    storage: mongodb
    mongo-url: {{{MONGO_HOST}}}:{{{MONGO_PORT}}}
    mongo-database: dockercluster
  run-cmd:
    bin: /var/lib/tsuru/start
    port: "8888"
  ssh:
    add-key-cmd: /var/lib/tsuru/add-key
    user: ubuntu
EOF
)

function error {
    echo "$@" 1>&2
}

function running_port {
    local appname=$1
    running_addr "${appname}" | sed "s/.*://"
}

function running_addr {
    local appname=$1
    for _ in {1..30}; do
        sleep 0.5
        local addr=$(sudo netstat -tnlp | grep "${appname}" | tr -s " " | cut -d' ' -f 4 | sort | head -n1)
        if [[ $addr != "" ]]; then
            echo "${addr}"
            break
        fi
        echo "Waiting for ${appname}..." 1>&2
    done
}

function installed_version {
    local cmdid=${1-}
    local minversion=${2-}
    local version=${3-}
    local max_version=$(echo -e "${minversion}min\n$version" | sort -V | tail -n 1)
    local install_var=$(eval echo $`echo '{force_install_'`${cmdid}`echo '-}'`)
    if [[ $install_var != "1" && $max_version != "${minversion}min" ]]; then
        echo "${max_version}"
    fi
}

function get_inet_addr() {
    # Return IP address based on ifconfig's output
    /sbin/ifconfig | grep -A1 $1 2> /dev/null | grep "inet addr" | tail -n1 | \
                                     sed "s/[^:]*:\([0-9.]*\).*/\1/"
}

function public_ip {
    # Try to take the public IP using AWS EC2's metadata API:
    local ip=$(curl -s -L -m2 -f http://169.254.169.254/latest/meta-data/public-ipv4 || true)

    # Try to use DigitalOcean's metadata API as fallback:
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(curl -s -L -m2 -f http://169.254.169.254/metadata/v1/interfaces/public/0/ipv4/address || true)
    fi

    # Try via ifconfig
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(get_inet_addr eth)
    fi
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(get_inet_addr ens)
    fi
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(get_inet_addr venet0)
    fi
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(get_inet_addr wlan)
    fi

    # Try to access an external API to discover public IP
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(curl -s -L -m2 'https://api.ipify.org' || true)
    fi

    # Damn, it!
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        error "Couldn't find a suitable public IP. Try using --host-ip option."
        exit 1
    fi

    echo "${ip}"
}

function local_ip {
    # Try to take the public IP using AWS EC2's metadata API:
    local ip=$(curl -s -L -m2 -f http://169.254.169.254/latest/meta-data/local-ipv4 || true)

    # Try to use DigitalOcean's metadata API as fallback:
    if [[ "$ip" == "" || "$ip" == "not found" ]]; then
        ip=$(curl -s -L -m2 -f http://169.254.169.254/metadata/v1/interfaces/private/0/ipv4/address || true)
    fi

    if [[ "$ip" == "not found" ]]; then
        ip=""
    fi

    echo "${ip}"
}

function set_host {
    if [[ "$host_ip" && "$set_interface" ]]; then
        sudo ifconfig lo:0 $host_ip netmask 255.255.255.255 up
    fi
    if [[ $host_ip == "" ]]; then
        host_ip=$(public_ip)
    fi
    if [[ $host_ip == "127.0.0.1" ]]; then
        echo "Couldn't find suitable host_ip, please run with --host-ip <external ip>"
        exit 1
    fi
    echo "Chosen host ip: $host_ip. You can override with --host-ip <external ip>"

    if [[ $host_name == "" ]]; then
        host_name="$host_ip.nip.io"
    fi
    echo "$host_ip $host_name" | sudo tee -a /etc/hosts
    echo "Chosen host name: $host_name. You can override with --host-name <hostname>"
}

function set_local_host {
    if [[ $private_ip == "" ]]; then
        private_ip=$(local_ip)
    fi
    if [[ $private_ip == "" ]]; then
        private_ip=$(public_ip)
    fi
    if [[ $private_ip == "127.0.0.1" ]]; then
        echo "Couldn't find suitable local_ip, please run with --host-ip <external ip>"
        exit 1
    fi
}

function check_support {
    which apt-get > /dev/null
    if [ $? -ne 0 ]; then
        error "Error: apt-get should be available on the system"
        exit 1
    fi
    distid=$(lsb_release -is)
    release=$(lsb_release -rs)
    codename=$(lsb_release -cs)
    if [[ $distid == "Debian" && $(echo $release | awk '{printf("%d", $1)}') -lt 8  ]]; then
        error "Error: This script requires Debian release >= 8"
    fi
    echo "Detect ${distid} ${release} (${codename}), supported system"
}

function install_basic_deps {
    local tsuru_package_source=$1
    echo "Updating apt-get and installing basic dependencies (this could take a while)..."
    if [[ $distid == "Ubuntu" ]]; then
        sudo perl -i -pe 's/^# *(.+)(trusty|trusty-updates|trusty-security) multiverse$/$1$2 multiverse/gi' /etc/apt/sources.list
    fi
    sudo apt-get update
    sudo apt-get install linux-image-extra-$(uname -r) -qqy
    sudo apt-get install jq screen curl mercurial git bzr \
                         software-properties-common apt-transport-https -y
    if [[ $ext_repository ]]; then
        curl -sS ${ext_repository}/public.key | sudo apt-key add -
        echo "deb ${ext_repository} ${DISTMAP[$codename]} main contrib" | sudo tee /etc/apt/sources.list.d/tsuru-deb.list
        echo "deb-src ${ext_repository} ${DISTMAP[$codename]} main contrib" | sudo tee -a /etc/apt/sources.list.d/tsuru-deb.list
    else
        curl -s https://packagecloud.io/install/repositories/tsuru/${tsuru_package_source}/script.deb.sh | sudo bash
    fi
    sudo apt-get update
}

function install_docker {
    if [[ ${registryhost} == "" ]]; then
        registryhost=${dockerhost}
    fi
    local version=$(docker -v | awk -F '[ ,]+' '{ print $3 }')
    local iversion=$(installed_version docker 0.20.0 "${version}")
    if [[ $iversion != "" ]]; then
        echo "Skipping docker installation, version installed: $iversion"
    else
        echo "Installing docker..."
        curl -sSL https://get.docker.com/ | sudo sh
    fi
    if [[ `which systemctl` != "" ]] && [[ `systemctl is-system-running` != "offline" ]]; then
        sudo -E sh -c "mkdir -p /etc/systemd/system/docker.service.d"
        sudo -E sh -c "echo '[Service]\nExecStart=\nExecStart=/usr/bin/dockerd \$DOCKER_OPTS -H tcp://127.0.0.1:${dockerport} -H unix:///var/run/docker.sock --insecure-registry=${registryhost}:${registryport}' > /etc/systemd/system/docker.service.d/tsuru.conf"
        sudo systemctl daemon-reload
    else
        local opts=$(bash -c 'source /etc/default/docker && echo $DOCKER_OPTS')
        if [[ ! $opts =~ :// ]]; then
            echo "Changing /etc/default/docker to listen on tcp://127.0.0.1:${dockerport}..."
            echo "DOCKER_OPTS=\"\$DOCKER_OPTS -H tcp://127.0.0.1:${dockerport} -H unix:///var/run/docker.sock --insecure-registry=${registryhost}:${registryport}\"" | sudo tee -a /etc/default/docker > /dev/null
        fi
    fi
    sudo service docker stop 1>&2 2>/dev/null || true
    sudo service docker start
    sleep 5
    dockerport=$(running_port docker)
    if [[ $dockerport == "" ]]; then
        echo "Error: Couldn't find docker port, please check /var/log/upstart/docker.log for more information"
        echo "/var/log/upstart/docker.log contents:"
        cat /var/log/upstart/docker.log
        exit 1
    fi
    echo "docker found running at $dockerhost:$dockerport"
    local home_host=$(bash -ic 'source ~/.bashrc && echo $DOCKER_HOST')
    if [[ $home_host != "tcp://$dockerhost:$dockerport" ]]; then
        echo "Adding DOCKER_HOST to ~/.bashrc"
        echo -e "export DOCKER_HOST=tcp://$dockerhost:$dockerport" | tee -a ~/.bashrc > /dev/null
    fi
    export DOCKER_HOST=tcp://$dockerhost:$dockerport
    docker_node="$docker_node $dockerhost:$dockerport"
}

function install_docker_registry {
    echo "Installing docker-registry..."
    sudo mkdir -p /var/lib/registry
    docker rm -f registry || true
    docker run -d -p ${registryport}:${registryport} -e REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY=/var/lib/registry -v /var/lib/registry:/var/lib/registry --restart=always --name registry registry:2
}

function install_mongo {
    docker rm -f mongodb || true
    docker run -d -p 27017:27017 --net=host --restart=always --name mongodb mongo
}

function install_redis {
    docker rm -f redis || true
    docker run -d -p 6379:6379 --restart=always --name redis redis
}

function install_planb {
    docker rm -f tsuru_planb || true
    docker run -d --net=host --restart=always --name tsuru_planb tsuru/planb:v1 --listen ":80"
}

function install_gandalf {
    sudo apt-get install gandalf-server -y
    local hook_dir=/home/git/bare-template/hooks
    sudo mkdir -p $hook_dir
    sudo curl -sSL ${hook_url} -o ${hook_dir}/${hook_name}
    sudo chmod +x ${hook_dir}/${hook_name}
    sudo chown -R git:git /home/git/bare-template
    sudo sed "s/^\(host: \).*$/\1${host_name}/" /etc/gandalf.conf -i
    sudo sed "s/^#\(\s*template: \).*$/\1\/home\/git\/bare-template/" /etc/gandalf.conf -i
    sudo service gandalf-server stop 1>&2 2>/dev/null || true
    sudo service gandalf-server start
    sleep 5
    local gandalfaddr=$(running_addr gandalf)
    if [[ $gandalfaddr == "" ]]; then
        echo "Error: Couldn't find gandalf addr, please check /var/log/upstart/gandalf-server.log for more information"
        echo "/var/log/upstart/gandalf-server.log contents:"
        cat /var/log/upstart/gandalf-server.log
        exit 1
    fi
    echo "gandalf found running at $gandalfaddr"
}

function install_go {
    local version=$(go version 2>/dev/null | sed -e 's/go version[^0-9]*\([0-9.]*\).*/\1/')
    local iversion=$(installed_version go 1.1.0 "${version}")
    if [[ $iversion != "" ]]; then
        echo "Skipping go installation, version installed: $iversion"
    else
        echo "Installing go..."
        sudo apt-add-repository ppa:gophers/archive -y
        sudo apt-get update
        sudo apt-get install golang-1.8 -y
        echo -e "export PATH=$PATH:/usr/lib/go-1.8/bin" |  tee -a ~/.bashrc > /dev/null
        export PATH=$PATH:/usr/lib/go-1.8/bin
    fi
    if [[ ${GOPATH-} == "" ]]; then
        export GOPATH=$HOME/go
    fi
    mkdir -p $GOPATH
    local bash_gopath=$(bash -ic 'unset GOPATH; source ~/.bashrc && echo $GOPATH')
    if [[ $bash_gopath != $GOPATH ]]; then
        echo "Adding GOPATH=$GOPATH to ~/.bashrc"
        echo -e "export GOPATH=$GOPATH" | tee -a ~/.bashrc > /dev/null
    fi
}

function install_test_deps {
  echo "Installing test dependencies..."
  sudo apt-get -y install xmlsec1 libsasl2-dev
}

function config_tsuru_pre {
    sudo mkdir -p /etc/tsuru
    echo "$TSURU_CONF" | sudo tee /etc/tsuru/tsuru.conf > /dev/null
    sudo sed -i.old -e "s/{{{HOST_IP}}}/${host_ip}/g" /etc/tsuru/tsuru.conf
    sudo sed -i.old -e "s/{{{PRIVATE_IP}}}/${dockerhost}/g" /etc/tsuru/tsuru.conf
    sudo sed -i.old -e "s/{{{REGISTRY_HOST}}}/${registryhost}/g" /etc/tsuru/tsuru.conf
    sudo sed -i.old -e "s/{{{HOST_NAME}}}/${host_name}/g" /etc/tsuru/tsuru.conf
    sudo sed -i.old -e "s/{{{MONGO_HOST}}}/${mongohost}/g" /etc/tsuru/tsuru.conf
    sudo sed -i.old -e "s/{{{MONGO_PORT}}}/${mongoport}/g" /etc/tsuru/tsuru.conf
    if [[ -e /etc/default/tsuru-server ]]; then
        sudo sed -i.old -e 's/=no/=yes/' /etc/default/tsuru-server
    fi
}

function config_tsuru_post {
    tsuru target-remove default
    tsuru target-add default "${private_ip}:8080" || true
    tsuru target-set default
}

function create_initial_user {
    echo "Creating initial admin user..."
    yes $adminpassword | tsurud root-user-create $adminuser || true
    yes $adminpassword | tsuru login $adminuser
    tsuru team-create admin || true
}

function enable_initial_user {
    mkdir -p ~/.ssh
    if ! grep -Pzo "Host ${private_ip}\s+StrictHostKeyChecking no" ~/.ssh/config >/dev/null; then
        echo -e "Host ${private_ip}\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
    fi
    if ! grep -Pzo "Host ${private_ip}\s+StrictHostKeyChecking no" ~/.ssh/config >/dev/null; then
        echo -e "Host ${private_ip}\n\tStrictHostKeyChecking no\n" >> ~/.ssh/config
    fi
    if [[ ! -e ~/.ssh/id_rsa ]]; then
        yes | ssh-keygen -t rsa -b 4096 -N "" -f ~/.ssh/id_rsa > /dev/null
    fi
    tsuru key-add -f rsa ~/.ssh/id_rsa.pub || true
}

function add_default_roles {
    tsuru role-add team-create global || true
    tsuru role-permission-add team-create role.update team.create || true

    tsuru role-add team-member team  || true
    tsuru role-permission-add team-member app service-instance team  || true

    tsuru role-default-add --team-create team-member  || true
    tsuru role-default-add --user-create team-create  || true
}

function add_as_docker_node {
    echo "Adding docker node to pool..."
    tsuru pool-add $pool -p -d 2>/dev/null || tsuru pool-add $pool 2>/dev/null || true
    amount=0
    for node in $docker_node; do
        tsuru node-add --register address="http://${node}" pool=$pool 2>/dev/null || true
        amount=$((amount+1))
    done
    set +e
    status=1
    while [ $status != 0 ]; do
        tsuru node-list | grep "| http://" | grep ready | wc -l | grep -q "${amount}$"
        status=$?
    done
    set -e
}

function install_platform {
    echo "Installing platform container..."
    local has_plat=$((tsuru platform-list | grep "${1}"$) || true)
    if [[ ${has_plat} == "" ]]; then
        tsuru platform-add ${1} -i "tsuru/${1}"
    fi
}

function install_dashboard {
    echo "Installing tsuru-dashboard..."
    tsuru app-create tsuru-dashboard python -o $pool -t admin || true
    pushd ~/
    if [[ ! -d ~/tsuru-dashboard ]]; then
        git clone https://github.com/tsuru/tsuru-dashboard
    fi
    pushd tsuru-dashboard
    git remote add tsuru "git@${private_ip}:tsuru-dashboard.git" || true
    git reset --hard
    git clean -dfx
    git pull
    git push tsuru master
    popd
    popd
}

function install_tsuru_pkg {
    echo "Installing Tsuru from deb package..."
    sudo apt-get install tsuru-server tsuru-client -y

    sudo service tsurud stop >/dev/null 2>&1 || true
    config_tsuru_pre
    sudo service tsurud start

    sleep 5
}

function install_tsuru_client {
    echo "Installing Tsuru client from deb package..."
    sudo apt-get install tsuru-client -qqy
}

function install_tsuru_src {
    echo "Installing Tsuru from source (this could take some minutes)..."
    if [[ -e ${GOPATH}/src/github.com/tsuru/tsuru ]]; then
        pushd "${GOPATH}/src/github.com/tsuru/tsuru"
        git reset --hard && git clean -dfx && git pull
        popd
    else
        mkdir -p "${GOPATH}/src/github.com/tsuru/tsuru"
        pushd "${GOPATH}/src/github.com/tsuru/tsuru"
        git clone https://github.com/tsuru/tsuru .
        popd
    fi
    go get github.com/tsuru/tsuru/cmd/tsurud
    go get github.com/tsuru/tsuru-client/tsuru
    sudo cp $(echo "${GOPATH}" | awk -F ':' '{print $1}')/bin/{tsurud,tsuru} /usr/local/bin

    screen -X -S api quit || true
    screen -S api -d -m tsurud api --config=/etc/tsuru/tsuru.conf

    local tsurudaddr=$(running_addr tsurud)
    if [[ $tsurudaddr == "" ]]; then
        echo "Error: Couldn't find tsurud addr, please check /var/log/syslog for more information"
        exit 1
    fi
    echo "tsurud api found running at $tsurudaddr"
}

function config_git_key {
    local tsuru_token=$(bash -ic 'source ~git/.bash_profile && echo $TSURU_TOKEN')
    if [[ $tsuru_token == "" ]]; then
        echo "Adding tsurud token to ~git/.bash_profile"
        local token=$(tsurud token || tsr token)
        echo "export TSURU_TOKEN=$token" | sudo tee -a ~git/.bash_profile > /dev/null
    fi
    local tsuru_host=$(bash -ic 'source ~git/.bash_profile && echo $TSURU_HOST')
    if [[ $tsuru_host != "$private_ip:8080" ]]; then
        echo "Adding tsurud host to ~git/.bash_profile"
        echo "export TSURU_HOST=$private_ip:8080" | sudo tee -a ~git/.bash_profile > /dev/null
    fi
    sudo chown -R git:git ~git/.bash_profile
}

function add_git_envs {
    if [[ "${#git_envs[@]}" -gt 1 ]]; then
        echo "Serializing provided env vars to ~git/.bash_profile"
        echo export ${git_envs[@]:1} | sudo tee -a ~git/.bash_profile > /dev/null
    fi
}

function banner_ansii {
    echo -e '                            \x1B[38;2;37;184;108mo.                   \x1B[0m'
    echo -e '  _                         \x1B[38;2;37;184;108m:8o.             .:: \x1B[0m'
    echo -e ' | |_ ___ _   _ _ __ _   _  \x1B[38;2;37;184;108m.888o         .o:  . \x1B[0m'
    echo -e ' | __/ __| | | | \047__| | | |  \x1B[38;2;37;184;108mO888O:     .oO:     \x1B[0m'
    echo -e ' | |_\__ \ |_| | |  | |_| |  \x1B[38;2;37;184;108mO88888O. :O8O.      \x1B[0m'
    echo -e '  \__|___/\__,_|_|   \__,_|  \x1B[38;2;37;184;108mO8888888OoOo        \x1B[0m'
    echo -e '                            \x1B[38;2;37;184;108m.O88888888o:         \x1B[0m'
}

function install_all {
    check_support
    install_basic_deps ${tsuru_package_source-"stable"}
    set_local_host
    set_host
    install_docker
    if [[ "${registryhost}" == "${dockerhost}" ]]; then
        install_docker_registry
    fi
    install_redis
    install_mongo
    install_planb
    install_gandalf
    if [[ ${install_tsuru_source-} == "1" ]]; then
        config_tsuru_pre
        install_go
        install_tsuru_src
        install_test_deps
    else
        install_tsuru_pkg
    fi
    config_tsuru_post
    config_git_key
    add_git_envs
    create_initial_user
    enable_initial_user
    add_default_roles
    add_as_docker_node
    install_platform python
    install_platform static
    if [[ ${without_dashboard-} != "1" ]]; then
        install_dashboard
    fi

    echo '######################## DONE! ########################'
    echo
    banner_ansii
    echo
    echo "Some information about your tsuru installation:"
    echo
    echo "Admin user: ${adminuser}"
    echo "Admin password: ${adminpassword} (PLEASE CHANGE RUNNING: tsuru change-password)"
    echo "Target address: http://$host_ip:8080"
    if [[ ${without_dashboard-} != "1" ]]; then
        local cont_id=$(docker ps | grep tsuru-dashboard | cut -d ' ' -f 1)
        local dashboard_port=$(docker inspect $cont_id | grep HostPort  | head -n1 | sed "s/[^0-9]//g")
        echo "Dashboard address: http://$host_ip:$dashboard_port"
        echo
        echo "You should run \`source ~/.bashrc\` on your current terminal."
        echo
        echo "Installed apps:"
        sleep 1
        tsuru app-list
    fi
}

function install_server {
    check_support
    install_basic_deps ${tsuru_package_source-"stable"}
    set_local_host
    set_host
    install_docker
    if [[ "${registryhost}" == "${dockerhost}" ]]; then
        install_docker_registry
    fi
    install_redis
    install_mongo
    install_planb
    install_gandalf
    install_tsuru_pkg
    config_tsuru_post
    config_git_key
    add_git_envs
    create_initial_user
    enable_initial_user
    add_default_roles
    add_as_docker_node
    install_platform python

    echo '######################## DONE! ########################'
    echo
    banner_ansii
    echo
    echo "Some information about your tsuru installation:"
    echo
    echo "Admin user: ${adminuser}"
    echo "Admin password: ${adminpassword} (PLEASE CHANGE RUNNING: tsuru change-password)"
    echo "Target address: $host_ip:8080"
}

function install_client {
    check_support
    install_basic_deps ${tsuru_package_source-"stable"}
    set_local_host
    set_host
    install_tsuru_client
    config_tsuru_post
    enable_initial_user
    add_default_roles
    if [[ ${without_dashboard-} != "1" ]]; then
        install_dashboard
    fi

    echo '######################## DONE! ########################'
    echo
    banner_ansii
    echo
    echo "Some information about your tsuru installation:"
    echo
    echo "Admin user: ${adminuser}"
    echo "Admin password: ${adminpassword} (PLEASE CHANGE RUNNING: tsuru change-password)"
    echo "Target address: $host_ip:8080"
    if [[ ${without_dashboard-} != "1" ]]; then
        local cont_id=$(docker ps | grep tsuru-dashboard | cut -d ' ' -f 1)
        local dashboard_port=$(docker inspect $cont_id | grep HostPort  | head -n1 | sed "s/[^0-9]//g")
        echo "Dashboard address: $host_ip:$dashboard_port"
        echo
        echo "You should run \`source ~/.bashrc\` on your current terminal."
        echo
        echo "Installed apps:"
        sleep 1
        tsuru app-list
        echo "Make sure that both ports 8080/tcp and 80/tcp are accessible remotely."
    fi
}

function install_dockerfarm {
    check_support
    install_basic_deps ${tsuru_package_source-"stable"}
    set_local_host
    set_host
    dockerhost=$(local_ip)
    if [[ $dockerhost == "" ]]; then
        dockerhost=$(public_ip)
    fi
    install_docker
    install_tsuru_client
    config_tsuru_post
    enable_initial_user
    add_default_roles
    add_as_docker_node
}

function install_exportvars {
    declare -p
}

function show_help {
    PROGRAM_NAME=$(basename $0)
    echo -e "Usage: $PROGRAM_NAME [options]

Options:

 -n,  --host-name [name]         Set the VM's hostname
 -i,  --host-ip [name]           Set the VM's IP
 -pi, --private-ip [name]        Set the VM's private IP
 -c,  --tsuru-from-source        Install tsuru from master source code (default: stable packages)
 -p,  --tsuru-pkg-stable         Install tsuru from stable packages
 -N,  --tsuru-pkg-nightly        Install tsuru from nightly build packages (default: stable packages)
 -f,  --force-install [pkg]      Force installation of named package
 -g,  --gopath [path]            prepend new path to env var GOPATH
 -u,  --hook-url [url]           Git hook URL
 -o,  --hook-name [name]         Git hook name
 -e,  --env [key] [value]        Set environment variable for git user in the VM
 -r,  --ext-repository [repo]    Set the external repository URL produced by tsuru/tsuru-deb
 -d,  --docker-only              Only install docker          (default: docker, dashboard)
 -w,  --without-dashboard        Install without dashboard    (default: with dashboard)
 -I,  --set-interface            The IP provided by --host-ip is not really allocated to this VM,
                                 use ifconfig to set up an interface so it can be reached
 -D,  --docker-node [node1] [node2] ...
                                 Add extra docker nodes to tsuru server for building clusters
 -t,  --template [name]          Install template, name options:
                                 - all: install all packages (default)
                                 - dockerfarm: install docker only
                                 - server: install mongo, planb, gandalf, archiver, tsuru-server
                                   and their dependencies
                                 - client: install tsuru-client and their dependencies
 -v,  --verbose                  Print debug messages
 -P,  --docker-pool [name]       Add docker to destination pool of tsuru (default: theonepool)
 -R,  --registryhost             Set the docker registry IP
 -sd, --systemd                  Set systemd as init system
 -h,  --help                     This help screen
"
}

while [ "${1-}" != "" ]; do
    case $1 in
        "-v" | "--verbose")
            set -x
            is_debug=1
            ;;
        "-P" | "--docker-pool")
            shift
            pool=$1
            ;;
        "-I" | "--set-interface")
            set_interface="y"
            ;;
        "-D" | "--docker-node")
            while [ "${2-}" != "" ]; do
                shift
                [[ ${1:0:1} != "-" ]] || break
                docker_node="$docker_node $1"
            done
            ;;
        "-t" | "--template")
            shift
            install_func=install_$1
            ;;
        "-n" | "--host-name")
            shift
            host_name=$1
            ;;
        "-i" | "--host-ip")
            shift
            host_ip=$1
            ;;
        "-pi" | "--private-ip")
            shift
            private_ip=$1
            ;;
        "-c" | "--tsuru-from-source")
            install_tsuru_source=1
            ;;
        "-p" | "--tsuru-pkg-stable")
            tsuru_package_source="stable"
            install_tsuru_pkg=1
            ;;
        "-f" | "--force-install")
            shift
            declare "force_install_$1=1"
            ;;
        "-g" | "--gopath")
            shift
            mkdir -p $1
            if [[ -v GOPATH ]]; then
                export GOPATH=$1:$GOPATH
            else
                export GOPATH=$1
            fi
            ;;
        "-u" | "--hook-url")
            shift
            hook_url=$1
            ;;
        "-o" | "--hook-name")
            shift
            hook_name=$1
            ;;
        "-e" | "--env")
            shift
            git_envs=("${git_envs[@]}" "$1=\"$2\"")
            shift
            ;;
        "-r" | "--ext-repository")
            shift
            ext_repository=$1
            ;;
        "-d" | "--docker-only")
            install_func=install_docker
            ;;
        "-w" | "--without-dashboard")
            without_dashboard=1
            ;;
        "-R" | "--registryhost")
            shift
            registryhost=$1
            ;;
        * | "-h" | "--help")
            show_help
            exit
            ;;

    esac
    shift
done

$install_func