General

This git repository holds everything required for the next Make it Break it Fix it session. Basic aproach for development is that you

• create a docker image of fedora or centos
• use that image to spin 4 docker containers
• use ansible to
  • configure one as a repo and clone the postgresql.org repo
  • install postgres, repmgr and barman on the other three machines

Step by step

initialize ssh keys

cd docker/c7_ssh/
ssh-keygen -N '' -f ./id_rsa
cd -

Start the docker containers

docker-compose up -d

enter the ansible container

docker exec -ti mibifi_ansible_1 /bin/bash

##install defaults, like ansible

/ansible/initiate.sh

Change default config if needed

Only needed for

• non default docker deployments, or with already running containers
• switching between centos / fedora (default is centos) Look at
• ansible/group_vars/all for all preconfigured variables
• ansible/staging/inventory for all hostrelated stuff

Run playbook all.yml, or repo.yml, then repmgr.yml and then barman.yml

• all.yml calls all the other playbooks in the correct order
• repo.yml initializes repo container
• repmgr.yml initializes database servers, making first server a master and the rest a standby (only one standby is tested for now)
• barman.yml initializes database servers as barman clients and barman server as barman server

ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook /ansible/all.yml -i /ansible/staging/inventory -u root --private-key /ansible//id_rsa

Cleanup

docker-compose kill && docker-compose rm

Clean and rerun only necessary

docker-compose kill && docker-compose rm -f db0{1,2} barman && docker-compose up -d && docker exec -ti mibifi_ansible_1 bash -c 'cd /ansible ; ansible-playbook all.yml'

Cleanout docker containers

• docker-compose kill
• docker-compose rm