The machine now boots with a new pair of cooperating systemd units:
1) cam-journal-gatewayd.service: a copy of the systemd-journal-gatewayd service,
which runs an HTTP interface to the systemd journal.
2) cam-journal-gatewayd.socket: a unix socket listener listening on unix
socket /run/camjournald.sock. Incoming connections will forward to 1).
Then the camlistored.service unit running camlistored under Docker now
passes -v /run/camjournald.sock:/run/camjournald.sock to make that unix socket
available to the Docker container.
Then in camlistored, a new handler at /debug/logs (wrapped in auth
checks) then opens that socket and makes an HTTP request to it,
copying its response (of log lines) back to the browser.
This will ease debugging, letting people only use their browser to
debug (or send logs to the Camlistore developers more likely), rather
than sshing in to CoreOS and learning CoreOS and systemd arcana.
Change-Id: Icd5967ae7e9946d36229bdbc5d37644a11ee5e9f
Context: http://camlistore.org/issue/479
This patch allows camlistored to wait for all the apps to be serving,
before printing its own listening address.
Change-Id: I4035b115a03ef6a2a43177b83b5b65ebc50a2188
Brad Fitzpatrick