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docker-easy-haproxy/docs/environment-variable.md
Joao Gilberto Magalhaes 491f4a8c09 Add support for CORS in HAProxy stats dashboard
- Introduced `HAPROXY_STATS_CORS_ORIGIN` environment variable for enabling CORS in HAProxy stats.
- Updated HAProxy configuration template to handle CORS preflight and response headers.
- Added tests for static configuration mode with CORS enabled.
- Updated documentation to include new CORS configuration details and examples.
2026-02-16 20:54:27 -05:00

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Docker environment variables

Environment Variable Description Default
EASYHAPROXY_DISCOVER How the services will be discovered to create haproxy.cfg: static, docker, swarm or kubernetes required
EASYHAPROXY_LABEL_PREFIX (Optional) The key will search for matching resources. easyhaproxy
EASYHAPROXY_BASE_PATH (Optional) Base directory for all EasyHAProxy files. All paths (config, certs, plugins, www) are constructed relative to this base. /etc/easyhaproxy
EASYHAPROXY_CERTBOT_* (Optional) Enable Let's Encrypt or any other ACME certificate. See more: acme empty
EASYHAPROXY_SSL_MODE (Optional) strict supports only the most recent TLS version; default good SSL integration with recent browsers; loose supports all old SSL protocols for old browsers (not recommended). default
EASYHAPROXY_REFRESH_CONF (Optional) Check for new containers/services every N seconds. 10
EASYHAPROXY_LOG_LEVEL (Optional) The log level for EasyHAproxy messages. Available: TRACE,DEBUG,INFO,WARN,ERROR,FATAL DEBUG
CERTBOT_LOG_LEVEL (Optional) The log level for Certbot messages. Available: TRACE,DEBUG,INFO,WARN,ERROR,FATAL DEBUG
HAPROXY_LOG_LEVEL (Optional) The log level for HAProxy messages. Available: TRACE,DEBUG,INFO,WARN,ERROR,FATAL INFO
HAPROXY_USERNAME (Optional) The HAProxy username for the statistics endpoint (used only when HAPROXY_PASSWORD is set). admin
HAPROXY_PASSWORD (Optional) The HAProxy password to the statistics endpoint. Stats are disabled unless this is defined. empty
HAPROXY_STATS_PORT (Optional) The HAProxy port to the statistics. If set to false, disable statistics. Only applies when HAPROXY_PASSWORD is defined. 1936
HAPROXY_STATS_CORS_ORIGIN (Optional) Enable CORS for the HAProxy stats dashboard by specifying the allowed origin (e.g., http://localhost:3000). Only applies when HAPROXY_PASSWORD is defined. empty
HAPROXY_CUSTOMERRORS (Optional) If HAProxy will use custom HTML errors. true/false. false

:::tip HAProxy Stats Statistics are only configured when HAPROXY_PASSWORD is set. Without a password, the stats section is not generated. :::

:::note ACME/Certbot Environment Variables For ACME/Certbot configuration (Let's Encrypt, ZeroSSL, etc.), see the ACME documentation for the complete list of EASYHAPROXY_CERTBOT_* variables. :::


Open source ByJG