Toxiproxy

A tool to help test your application for points of failure,
by simulating down/bad-network conditions.

Documentation

github

https://github.com/shopify/toxiproxy

Usage

# declare on cli
toxiproxy-cli create \
  -l localhost:26379 \ `# proxy`
  -u localhost:6379 \ `# upstream`
  my_redis

# load from json
toxiproxy -config <(echo '
[
  {
    "name": "web_dev_frontend_1",
    "listen": "[::]:18080",
    "upstream": "webapp.domain:8080",
    "enabled": true
  },
  {
    "name": "web_dev_mysql_1",
    "listen": "[::]:13306",
    "upstream": "database.domain:3306",
    "enabled": true
  }
]
')

tools

# add latency to requests
toxiproxy-cli toxic add -t latency -a latency=1000 shopify_test_redis_master