Alexey Dolotov
0488f246ba
simple-run: add --proxy-protocol-listener flag
Mirrors the proxy-protocol-listener TOML config option so simple-run can
sit behind a PROXY-protocol-emitting frontend (HAProxy, nginx stream)
without dropping back to a config file.
Discussed in #502: with this flag the compose recipe collapses to
'simple-run $BIND $SECRET --proxy-protocol-listener', keeping the
secret in the environment and no mtg-config.toml in the repo.