Example mybinder postgresql server

README.md

mybinder/repo2docker PostgreSQL server

Example mybinder repo with a built-in PostgreSQL server.

environment.yml

name: root
channels:
  - defaults
dependencies:
  - postgresql
  - psycopg2

list-databases.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Connect using default socket, list databases"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "[('postgres',), ('template1',), ('template0',)]"
      ]
     },
     "execution_count": 1,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "import psycopg2\n",
    "\n",
    "conn = psycopg2.connect(\"dbname='postgres'\")\n",
    "cur = conn.cursor()\n",
    "cur.execute(\"SELECT datname from pg_database\")\n",
    "\n",
    "cur.fetchall()"
   ]
  }
 ],
 "metadata": {
  "kernelspec": {
   "display_name": "Python 3",
   "language": "python",
   "name": "python3"
  },
  "language_info": {
   "codemirror_mode": {
    "name": "ipython",
    "version": 3
   },
   "file_extension": ".py",
   "mimetype": "text/x-python",
   "name": "python",
   "nbconvert_exporter": "python",
   "pygments_lexer": "ipython3",
   "version": "3.6.8"
  }
 },
 "nbformat": 4,
 "nbformat_minor": 2
}

postBuild

#!/bin/bash
set -eux
PGDATA=${PGDATA:-/home/jovyan/srv/pgsql}
if [ ! -d "$PGDATA" ]; then
  initdb -D "$PGDATA" --auth-host=md5 --encoding=UTF8
fi

start

#!/bin/bash
set -eux
PGDATA=${PGDATA:-/home/jovyan/srv/pgsql}
pg_ctl -D "$PGDATA" -l "$PGDATA/pg.log" start
exec "$@"