HAProxy config generator for Stolon replicas
Setup
- Create Python 3.6 virtualenv
- Clone repo into it
- Install requirements
pip install -r requirements.txt - Set needed variables in config.yml and environment variables for stolonctl
Example systemd unit
[Unit]
Description=stolon_haproxy is script for access to the stolon replicas
After=network.target
Requires=network.target
[Service]
ExecStart=/opt/stolon_haproxy/env/bin/python src/main.py config.yml
User=ansible
Environment="STKEEPER_UID=pgtest3"
Environment="STOLONCTL_CLUSTER_NAME=pg-stolon"
Environment="STOLONCTL_STORE_BACKEND=etcdv3"
Environment="STOLONCTL_STORE_ENDPOINTS=http://localhost:2379"
Environment="PATH=$PATH:/usr/stolon-0.10.0/bin"
WorkingDirectory=/opt/stolon_haproxy/sources
Restart=on-failure
RestartSec=100ms
Usage
python src/main.py config.yml
Script will check stolon state every timeout secs and restart HAProxy with new config every time when state was changed.