#!/bin/bash

# Log commands to stdout and vicariously /var/log/cloud-init-output.log
set -o xtrace
# Exit on error
set -o errexit
# Exit on use of unset variables
set -o nounset
# Exit and report on pipe failure
set -o pipefail

# If not running as root, rerun via sudo
if [[ $EUID > 0 ]]; then
    exec sudo "$0" "$@"
fi

# Let apt know not to error due to lack of Dialog
export DEBIAN_FRONTEND=noninteractive

# Add Mongo repo to sources
tee /etc/apt/sources.list.d/mongodb-org-3.4.list <<EOF
deb [ arch=amd64,arm64 ] http://repo.mongodb.org/apt/ubuntu xenial/mongodb-org/3.4 multiverse
EOF

# Install packages
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 0C49F3730359A14518585931BC711F9BA15703C6
apt-get update
for package in docker.io mongodb-org linux-image-extra-$(uname -r) linux-image-extra-virtual; do
    apt-get install -y $package
done

# Package specific actions
# add user:ubuntu to group:docker
usermod -aG docker ubuntu
# create mongodb data dir
mkdir -p /data/db/dump
chown ubuntu:ubuntu /data/db/dump

# Enable and start services
for service in mongod; do
    systemctl status $service || true # will return code 3 the first time, but gives good log info
    systemctl unmask $service
    systemctl enable $service
    systemctl start  $service
    systemctl status $service
done

# Reboot to make docker changes take effect
reboot