** Changed in: nova
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1373950
Title:
Serial proxy service and API broken by design
Status in OpenStack Compute (Nova):
Fix Released
Bug description:
As part of the blueprint https://blueprints.launchpad.net/nova/+spec
/serial-ports we introduced an API extension and a websocket proxy
binary. The problem with the 2 is that a lot of the stuff was copied
verbatim from the novnc-proxy API and service which relies heavily on
the internal implementation details of NoVNC and python-websockify
libraries.
We should not ship a service that will proxy websocket traffic if we
do not acutally serve a web-based client for it (in the NoVNC case, it
has it's own HTML5 VNC implementation that works over ws://). No
similar thing was part of the proposed (and accepted) implementation.
The websocket proxy based on websockify that we currently have
actually assumes it will serve static content (which we don't do for
serial console case) which will then when excuted in the browser
initiate a websocket connection that sends the security token in the
cookie: field of the request. All of this is specific to the NoVNC
implementation (see:
https://github.com/kanaka/noVNC/blob/e4e9a9b97fec107b25573b29d2e72a6abf8f0a46/vnc_auto.html#L18)
and does not make any sense for serial console functionality.
The proxy service was introduced in
https://review.openstack.org/#/c/113963/
In a similar manner - the API that was proposed and implemented (in
https://review.openstack.org/#/c/113966/) that gives us back the URL
with the security token makes no sense for the same reasons outlined
above.
We should revert at least these 2 patches before the final Juno
release as we do not want to ship a useless service and commit to a
useles API method.
We could then look into providing similar functionality through
possibly something like https://github.com/chjj/term.js which will
require us to write a different proxy service.
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