Patroni training 2019 edition

Patroni is a template for PostgreSQL HA. It lives at https://github.com/zalando/patroni.

This repository contains Patroni training materials.

Prerequisites

install docker, docker-compose

(Optional) Build the docker image

• git clone https://github.com/zalando/patroni
• cd patroni
• docker build -t patronitraining/patroni .

Note that this step is not required, as docker-compose will automatically fetch the image from the docker-hub. The image there is compressed to save bandwidth. You can achieve the same with your own image by passing --build-arg COMPRESS=1 together with your docker build command, although it will slightly reduce the image startup time.

Starting Patroni and etcd with docker-compose

• curl -sO https://raw.githubusercontent.com/patroni-training/2019/master/docker-compose.yml (or download it using your preferred tool)
• docker-compose up -d

Going further

• docker ps to view the list of running containers.
• docker logs -f [container_name] to view logs from the chosen container.
• docker exec -ti [container_name] bash to exec into the chosen container.

Further details on how the output of those commands should look like are provided at patroni dockerfile README.