backend be_matrix
    mode http
# Dendrite running on same host:
    server static 127.0.0.1:8008 check
# For Dendrite running on host with ip a.b.c.d, replace with:
#    server static a.b.c.d:8008 check

backend matrix-well-known-client
  http-after-response set-header Access-Control-Allow-Origin "*"
  http-after-response set-header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"
  http-after-response set-header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization"
url":"https://identity.example.com"}}'
  http-request return status 200 content-type application/json string '{"m.homeserver":{"base_url":"https://matrix.example.com"},"m.identity_server":{"base_u
rl":"https://matrix.example.com"}}'

backend matrix-well-known-server
  http-after-response set-header Access-Control-Allow-Origin "*"
  http-after-response set-header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"
  http-after-response set-header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization"
  http-request return status 200 content-type application/json string '{"m.server":"matrix.example.com"}'

frontend fe_matrix_dendrite
# Replace   123.123.123.123 with your PUBLIC ip address
    bind 123.123.123.123:8448 ssl crt /etc/haproxy/certs/matrix.example.com.pem
    use_backend     be_matrix
    default_backend be_matrix