install

#!/bin/bash

# Build Postgres image
db_image="jeffutter/postgresql"
docker pull "$db_image"

[[ $(lsb_release -cs) = 'trusty' ]] && psql_version="9.3" || psql_version="9.1"
[[ $(docker run --rm=true "$db_image" lsb_release -cs) = 'trusty' ]] && docker_psql_version="9.3" || docker_psql_version="9.1"
apt-get -y install "postgresql-client-$psql_version"

if [[ ! -d "$DOKKU_ROOT/.postgresql" ]]; then
  mkdir -p "$DOKKU_ROOT/.postgresql"
  mkdir -p "$DOKKU_ROOT/.postgresql/data"
  docker run "$db_image" tar -cvps -C "/var/lib/postgresql/$docker_psql_version/main" ./ | tar -xv -C "$DOKKU_ROOT/.postgresql/data/" -f -
  docker run "$db_image" chown -R postgres:postgres "/var/lib/postgresql/$docker_psql_version/main"

  if [[ ! -f "$DOKKU_ROOT/.postgresql/admin_pw" ]]; then
    admin_pass=$(openssl rand -base64 32|base64)
    echo $admin_pass > "$DOKKU_ROOT/.postgresql/admin_pw"

    chown dokku: "$DOKKU_ROOT/.postgresql"
    chown dokku: "$DOKKU_ROOT/.postgresql/admin_pw"

    docker run -v "$DOKKU_ROOT/.postgresql/data":"/var/lib/postgresql/$docker_psql_version/main" "$db_image" su postgres -c "/usr/lib/postgresql/$docker_psql_version/bin/postgres --single -D /var/lib/postgresql/$docker_psql_version/main -c config_file=/etc/postgresql/$docker_psql_version/main/postgresql.conf <<< \"CREATE USER root WITH SUPERUSER PASSWORD '${admin_pass}';\""
  fi
fi