host_setup

#!/bin/bash
#
# Part of Simple paas
#
# Setup a new host ready to run Simple paas
#

set -euo pipefail

usage() {
  echo "This script will setup Simple paas on a single host."
  echo "example usage:"
  echo "EMAIL=bob@test.com REGISTRY=registry.mydomain.com/internal BUCKET=myhosting STAGING_DOMAIN=wildcarded.domain.com ./simple-paas/host_setup"
  exit 1
}

if [[ $EUID -ne 0 ]]; then
  echo "This script must be run as root"
  exit 1
fi

set +u
if [ -z "${EMAIL}" ]; then
  echo "Please set the default email address before running this script."
  echo "Something like this using your own email should work a treat."
  echo "EMAIL=bob@test.com"
  usage
fi

if [ -z "${REGISTRY}" ]; then
  echo "Please set the registry address before running this script."
  echo "REGISTRY=registry.mydomain.com/internal"
  usage
fi

if [ -z "${BUCKET}" ]; then
  echo "Please set the bucket name before running this script."
  echo "BUCKET=myhosting"
  usage
fi

if [ -z "${STAGING_DOMAIN}" ]; then
  echo "Please set the staging domain before running this script."
  echo "This is a domain/subdomain setup with a wildcard DNS record."
  echo "STAGING_DOMAIN=wildcarded.domain.com"
  usage
fi

set -u

CHECKOUT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

echo "Installing software and verifying functionality."
apt update
apt -y install docker.io ssh mariadb-server mariadb-server-10.3 python3-pip memcached jq
pip3 install b2
docker run hello-world

echo "Creating directories."
mkdir -p /etc/simple-paas /sites

echo "Tweaking docker."
cp ${CHECKOUT_DIR}/setup/daemon.json /etc/docker/daemon.json
systemctl daemon-reload
systemctl restart docker

echo "Installing simple-paas."
for i in ${CHECKOUT_DIR}/bin/*; do
  ln -sf $i /usr/local/bin/;
done

echo "Setting mysql to bind to all addresses."
cp ${CHECKOUT_DIR}/setup/90-simple-paas.cnf /etc/mysql/mariadb.conf.d/90-simple-paas.cnf
systemctl daemon-reload
systemctl restart mariadb

echo "Adding simple-paas logging channel local6."
cp ${CHECKOUT_DIR}/setup/60-simple-paas.conf /etc/rsyslog.d/
systemctl daemon-reload
systemctl restart rsyslog

echo "Creating simple paas directory."
mkdir -p /etc/simple-paas/sites

echo "Copying proxy config to simple paas directory."
cp ${CHECKOUT_DIR}/setup/proxy.conf /etc/simple-paas/

echo "Creating basic host config."
cp ${CHECKOUT_DIR}/setup/sp_config.example /etc/simple-paas/sp_config
sed -i -e 's%SYSTEM_EMAIL=.*%SYSTEM_EMAIL='"${EMAIL}"'%' /etc/simple-paas/sp_config
sed -i -e 's@CONTAINER_REGISTRY=.*@CONTAINER_REGISTRY='"${REGISTRY}"'@' /etc/simple-paas/sp_config
sed -i -e 's@B2_BUCKET=.*@B2_BUCKET='"${BUCKET}"'@' /etc/simple-paas/sp_config
set -i -e 's@STAGING_DOMAIN=.*@STAGING_DOMAIN='"${STAGING_DOMAIN}"'@' /etc/simple-paas/sp_config

echo "Logging into the specified container registry ${REGISTRY}"
docker login ${REGISTRY}

echo "Logging into B2"
# Check if the host is authorized for B2, if not, set that up now.
if ! b2 get-account-info > /dev/null; then
  echo "Enter B2 authorization details for backup setup."
  b2 authorize-account
fi

if ! b2 list-buckets | grep ${BUCKET}; then
  b2 create-bucket ${BUCKET} allPrivate
fi

echo "Starting nginx proxy containers."
${CHECKOUT_DIR}/host_start_nginx

echo "Adding automated backups"
ln -sf /usr/local/bin/sp_backup_all /etc/cron.hourly/

echo "Setup complete."