jasonforte / rethinkcli

CLI tool for RethinkDB

RethinkCLI

CLI tool for RethinkDB

Overview

This tool allows an automated script to ensure that a database / table exists before booting a microservice.

Dependencies

Libraries:

• GoRethink/gorethink

Getting Started with this tool

1. Clone this repo
2. Run make

Example Usage

This tool is for use with RethinkDB

$ # Run rethinkdb instance with docker
$ docker run -d -p 28015:28015 -p 8080:8080 rethinkdb

Ensure that a Database exists

$ # check that a database exists and create if it doesn't
$ ./dbtool -host localhost -port 28015 ensure_database random_database && echo "DATABASE IS PRESENT!"

Ensure that a Table exists

If the table doesn't exist then the last element will be the PK of the table.

$ # check that a table exists and if not create it.
$ ./dbtool -host localhost -port 28015 ensure_table random_database.random_table.CUSTOM_PK 

Bootstrapping a Microservice

Assuming an arbitrary python service that runs on port 3000 and requires a table basic_table in the euwest1 database.

Dockerfile

FROM python:3-onbuild

COPY dbtool /usr/bin/dbtool

COPY . /usr/src/app

EXPOSE 3000

CMD ["sh", "start_server.sh"]

start_server.sh

#!/bin/bash

# Ensure that the database exists
dbtool -host localhost -port 28015 ensure_database euwest1

# Ensure that the required table exists
dbtool -host localhost -port 28015 ensure_table euwest1.basic_table

python server.py

rethinkcli's Issues

Flag to fail if the ensure_table PK is different

When using the ensure_table command:

If the PK is not the same as the one specified then exit with an error.