HAProxy docker image

HAProxy docker image with Lets Encrypt SSL auto renewal using certbot with built in support for wildcard certificates using AWS Route53.

Paths

• /deployment/letsencrypt - Certbot config directory where generated certificates are stored
• /etc/haproxy/haproxy.cfg - Default location of haproxy configuration file
• /etc/haproxy/certs - Static (non certbot) certificates includes self-signed and any other static certificates should be volume mapped into this folder
• /var/log/* - Location of log files (all are symlinked to stdout)

Environment variables

• DOMAINNAME - IANA TLD subdomain for which a Lets Encrypt certificate should be requested
• DOMAINNAMES - Comma separated list of IANA TLD subdomain names for which Lets Encrypt certificates should be requested (this is a multi-value alternative to DOMAINNAME)
• HAPROXY_USER_PARAMS - Additional arguments that should be passed to the haproxy process during startup
• HAPROXY_CONFIG - Location of HAProxy config file (default: /etc/haproxy/haproxy.cfg)
• PROXY_LOGLEVEL - Log level for HAProxy (default: notice)
• MANAGER_HOST - Hostname of OpenRemote Manager (default: manager)
• MANAGER_WEB_PORT - Web server port of OpenRemote Manager (default 8080)
• MANAGER_MQTT_PORT - MQTT broker port of OpenRemote Manager (default 1883)
• KEYCLOAK_HOST - Hostname of the Keycloak server (default: keycloak)
• KEYCLOAK_PORT - Web server port of Keycloak server (default 8080)
• LOGFILE - Location of log file for entrypoint script to write to in addition to stdout (default none)
• AWS_ROUTE53_ROLE - AWS Route53 Role ARN to be assumed when trying to generate wildcard certificates using Route53 DNS zone, specifically for cross account updates (default none)
• LE_EXTRA_ARGS - Can be used to add additional arguments to the certbot command (default none)
• SISH_HOST - Defines the destination hostname for forwarding requests that begin with gw- used in combination with SISH_PORT
• SISH_PORT - Defined the destination port for forwarding requests tha begin with gw- used in combination with SISH_HOST
• MQTT_RATE_LIMIT - Enable rate limiting for MQTT connections (connections/s)

Custom certificate format

Any custom certificate volume mapped into /etc/haproxy/certs should be in PEM format and must include the full certificate chain and the private key, i.e.:

 cat privkey.pem cert.pem chain.pem > ssl-certs.pem

See haproxy SSL cert documentation.

Edge gateway tunnelling using SISH

The built in haproxy.cfg has support for forwarding requsts beginning with gw- to https://SISH_HOST:SISH_PORT just define these environment variables to enable this.