Move TLS termination and reverse proxying entirely to Titania's
HAProxy, eliminating the redundant HAProxy instance on Prospero.
Backends now communicate over plain HTTP within the internal network.
- Remove HAProxy container, config, certs, and syslog from Prospero
- Remove ssl_backend flags from Titania backend definitions
- Replace pplg_haproxy_* vars with single pplg_domain variable
- Remove HAProxy syslog source from Alloy config
- Update OAuth2-Proxy to listen on all interfaces for Titania access
Robert Helewka
0f21380fd0