[Users] Questions on ovirt 3.3 browser based spice/novnc working

Thu Aug 1 20:06:11 UTC 2013

Attached Firefox and Chrome screenshots of Certificates.
errors thrown by websockify
Firefox: 1: handler exception: [Errno 1] _ssl.c:1359: error:14094418:SSL
routines:SSL3_READ_BYTES:tlsv1 alert unknown ca
Chrome: 11: handler exception: WSRequestHandler instance has no attribute
'last_code'

For Firefox it looks like firefox needs a bit of proding to get it to
accept the Websocket CA Cert:
https://github.com/kanaka/websockify/issues/34

The error generated by chrome seems to be a websockify issue:
https://github.com/kanaka/noVNC/issues/86
https://github.com/kanaka/websockify/issues/22#issuecomment-3263065
https://github.com/kanaka/noVNC/issues/177

In any event I got both Chrome and Firefox working by manually browsing to:
https://ENGINEFQDN:6100 and accepting the self signed cert

Not pretty but it worked.

- DHC

On Thu, Aug 1, 2013 at 2:08 PM, Alon Bar-Lev <alonbl at redhat.com> wrote:

>
>
> ----- Original Message -----
> > From: "Dead Horse" <deadhorseconsulting at gmail.com>
> > To: "Alon Bar-Lev" <alonbl at redhat.com>
> > Cc: "users" <users at ovirt.org>
> > Sent: Thursday, August 1, 2013 9:59:14 PM
> > Subject: Re: [Users] Questions on ovirt 3.3 browser based spice/novnc
> working
> >
> > That did the trick for getting the websocket proxy configured ( i backed
> > out all my changes prior to running engine-setup). I do notice that it
> > still seems to leave the ovirt-websocket-proxy.conf in it's default state
> > and makes no dedications to it. Instead it generated
> > /etc/ovirt-engine/ovirt-websocket-proxy.conf.d/10-setup.conf
> >
> > I also noted engine setup generated:
> > /etc/pki/ovirt-engine/certs/websocket-proxy.cer
> > /etc/pki/ovirt-engine/keys/websocket-proxy.p12
> > /etc/pki/ovirt-engine/keys/websocket-proxy.key.nopass
> > /etc/pki/ovirt-engine/requests/websocket-proxy.req
> >
> > None the less still neither spice nor novnc will connect. I tried
> changing
> > Engine:6100 to EngineIP:6100 so that IP would be used instead. However
> > using either the FQDN or IP still yielded the same results.
>
> You should not touch anything... all should be configured...
> Make sure your browser trust the *CA* of the engine and not the engine
> certificate directly.
> And try to open vnc console via webadmin.
>
> > There was nothing interesting in the logs either. I do notice that whilst
> > the websocket-proxy service is running I never see an websockify
> processes
> > but instead in /var/log/messages I see:
> > Aug  1 13:44:10 ovirtfoo ovirt-websocket-proxy.py[435]: 11: handler
> > exception: [Errno 1] _ssl.c:1359: error:14094418:SSL
> > routines:SSL3_READ_BYTES:tlsv1 alert unknown ca
> >
> > Thus I changed SSL_ONLY=True to SSL_ONLY=False in
> > /etc/ovirt-engine/ovirt-websocket-proxy.conf.d/10-setup.conf and
> restarted
> > engine and websocket-proxy
> > No dice it still generated the same error as above during an attempted
> > connection to /var/log/messages
> >
> > I also not the following error message at VM power off (albeit I am
> > guessing it has nothing to do with this issue):
> > 2013-08-01 13:41:03,742 ERROR
> > [org.ovirt.engine.core.vdsbroker.DestroyVmVDSCommand] (pool-6-thread-50)
> > [304efb3e] VDS::destroy Failed destroying vm
> > fec3260c-871a-4fbe-a006-9eee4fbfbbcc in vds =
> > 5713e5c8-6252-4bce-a3f6-bbd8e1e6eb57 : ovirtnodefoo, error =
> > org.ovirt.engine.core.vdsbroker.vdsbroker.VDSErrorException:
> > VDSGenericException: VDSErrorException: Failed to DestroyVDS, error =
> > Unexpected exception
> >
> > - DHC
> >
> >
> > On Thu, Aug 1, 2013 at 1:07 PM, Alon Bar-Lev <alonbl at redhat.com> wrote:
> >
> > > If you install the proxy on the engine machine you just need:
> > >
> > > # yum install ovirt-engine-websocket-proxy
> > > # engine-setup
> > >
> > > then answer yes when prompt if you like to configure websocket proxy.
> > >
> > > you can execute engine-setup again even if you already installed.
> > >
> > > ----- Original Message -----
> > > > From: "Dead Horse" <deadhorseconsulting at gmail.com>
> > > > To: "<users at ovirt.org>" <users at ovirt.org>
> > > > Sent: Thursday, August 1, 2013 9:01:47 PM
> > > > Subject: [Users] Questions on ovirt 3.3 browser based spice/novnc
> working
> > > >
> > > > After Referencing:
> > > > http://www.ovirt.org/Features/noVNC_console
> > > > http://www.ovirt.org/Features/SpiceHTML5
> > > >
> > > > and looking at some of the related engine code.
> > > >
> > > > I am still attempting to get the spice/novnc browser based consoles
> to
> > > work.
> > > >
> > > > I am working from a build from master yesterday I used to upgrade
> over a
> > > > previous 3.3 master build from about a month back.
> > > >
> > > > VDSM version on host is 4.12.0 built minutes ago.
> > > >
> > > > I have installed and configured the websocket proxy like so:
> > > >
> > > > Set WebSocketProxy to engine ENGINEIP port 6100
> > > > engine-config -s WebSocketProxy=ENGINEIP:6100
> > > >
> > > > /usr/share/ovirt-engine/bin/pki-enroll-pkcs12.sh
> --name=websocket-proxy
> > > > --password=install --subject="/C=US/O=DHC/CN=ENGINEFQDN"
> > > >
> > > > This generates:
> > > > /etc/pki/ovirt-engine/keys/websocket-proxy.p12
> > > > /etc/pki/ovirt-engine/certs/websocket-proxy.cer
> > > > /etc/pki/ovirt-engine/requests/websocket-proxy.req
> > > >
> > > > However it does not generate the key that websockify wants so we do:
> > > > openssl pkcs12 -in websocket-proxy.p12 -nocerts -nodes -out
> > > > /etc/pki/ovirt-engine/keys/websocket-proxy.key
> > > >
> > > > The configuration of ovirt-websocket-proxy:
> > > > PROXY_HOST=*
> > > > PROXY_PORT=6100
> > > > SOURCE_IS_IPV6=False
> > > > SSL_CERTIFICATE=/etc/pki/ovirt-engine/certs/websocket-proxy.cer
> > > > SSL_KEY=/etc/pki/ovirt-engine/keys/websocket-proxy.key
> > > > FORCE_DATA_VERIFICATION=False
> > > > CERT_FOR_DATA_VERIFICATION=/etc/pki/ovirt-engine/certs/engine.cer
> > > > SSL_ONLY=True
> > > > TRACE_ENABLE=False
> > > > TRACE_FILE=
> > > > ENGINE_USR="/usr/share/ovirt-engine"
> > > >
> > > > Install spice-html5
> > > > git clone http://anongit.freedesktop.org/git/spice/spice-html5.git
> > > > mv spice-html5 /usr/share
> > > >
> > > > Test spice:
> > > > In Webadmin UI we set create a VM, set display as spice, start it
> and set
> > > > it's console to spice-html5.
> > > > Result spice-html client opens in a new tab but does not connect.
> > > >
> > > > From engine.log:
> > > > 2013-08-01 12:49:52,352 INFO
> > > [org.ovirt.engine.core.bll.SetVmTicketCommand]
> > > > (ajp--127.0.0.1-8702-9) Running command: SetVmTicketCommand internal:
> > > false.
> > > > Entities affected : ID: fec3260c-871a-4fbe-a006-9eee4fbfbbcc Type: VM
> > > > 2013-08-01 12:49:52,371 INFO
> > > > [org.ovirt.engine.core.vdsbroker.vdsbroker.SetVmTicketVDSCommand]
> > > > (ajp--127.0.0.1-8702-9) START, SetVmTicketVDSCommand(HostName =
> > > > ovirtnodefoo, HostId = 5713e5c8-6252-4bce-a3f6-bbd8e1e6eb57,
> > > > vmId=fec3260c-871a-4fbe-a006-9eee4fbfbbcc, ticket=TKfzUQJLLrUI,
> > > > validTime=120,m userName=admin at internal,
> > > > userId=fdfc627c-d875-11e0-90f0-83df133b58cc), log id: 5d258049
> > > > 2013-08-01 12:49:52,445 INFO
> > > > [org.ovirt.engine.core.vdsbroker.vdsbroker.SetVmTicketVDSCommand]
> > > > (ajp--127.0.0.1-8702-9) FINISH, SetVmTicketVDSCommand, log id:
> 5d258049
> > > >
> > > > Test novnc:
> > > > In Webadmin UI we set create a VM, set display as VNC, start it and
> set
> > > it's
> > > > console to novnc.
> > > > Result novnc client opens in a new tab but does not connect, but does
> > > display
> > > > error: "Server disconnected (code: 1006)
> > > >
> > > > From engine.log:
> > > > 2013-08-01 12:50:44,800 INFO
> > > [org.ovirt.engine.core.bll.SetVmTicketCommand]
> > > > (ajp--127.0.0.1-8702-9) Running command: SetVmTicketCommand internal:
> > > false.
> > > > Entities affected : ID: fec3260c-871a-4fbe-a006-9eee4fbfbbcc Type: VM
> > > > 2013-08-01 12:50:44,833 INFO
> > > > [org.ovirt.engine.core.vdsbroker.vdsbroker.SetVmTicketVDSCommand]
> > > > (ajp--127.0.0.1-8702-9) START, SetVmTicketVDSCommand(HostName =
> > > > ovirtnodefoo, HostId = 5713e5c8-6252-4bce-a3f6-bbd8e1e6eb57,
> > > > vmId=fec3260c-871a-4fbe-a006-9eee4fbfbbcc, ticket=IPWOWh6U9erd,
> > > > validTime=120,m userName=admin at internal,
> > > > userId=fdfc627c-d875-11e0-90f0-83df133b58cc), log id: bff6161
> > > > 2013-08-01 12:50:44,917 INFO
> > > > [org.ovirt.engine.core.vdsbroker.vdsbroker.SetVmTicketVDSCommand]
> > > > (ajp--127.0.0.1-8702-9) FINISH, SetVmTicketVDSCommand, log id:
> bff6161
> > > >
> > > > I verified connection of both the spice/vnc console directly at the
> host
> > > > level with a quick connect via virt-viewer.
> > > >
> > > > A quick scan with nmap of engine and host to verify sockets are open:
> > > >
> > > > Nmap scan report for engine
> > > > Host is up (0.0042s latency).
> > > > Not shown: 995 closed ports
> > > > PORT STATE SERVICE
> > > > 22/tcp open ssh
> > > > 80/tcp open http
> > > > 111/tcp open rpcbind
> > > > 443/tcp open https
> > > > 6100/tcp open synchronet-db
> > > >
> > > > Nmap scan report for host
> > > > Host is up (0.0045s latency).
> > > > Not shown: 997 closed ports
> > > > PORT STATE SERVICE
> > > > 22/tcp open ssh
> > > > 111/tcp open rpcbind
> > > > 5900/tcp open vnc
> > > >
> > > > For grins I stopped the websocket proxy and manually started a
> websockify
> > > > like so:
> > > > websockify 3.57.111.11:6100 3.57.111.12:5900
> > > > --cert=/etc/pki/ovirt-engine/certs/websocket-proxy.cer
> > > > --key=/etc/pki/ovirt-engine/keys/websocket-proxy.key
> > > >
> > > > WARNING: no 'numpy' module, HyBi protocol is slower or disabled
> > > > WebSocket server settings:
> > > > - Listen on ENGINEIP:6100
> > > > - Flash security policy server
> > > > - SSL/TLS support
> > > > - proxying from ENGINEIP:6100 to HOSTIP:5900
> > > >
> > > > Attempting another connection via
> > > >
> https://ENGINEFQDN//ovirt-engine-novnc-main.html?host=ENGINEIP&port=6100
> > > > results in:
> > > >
> > > > 1: handler exception: [Errno 1] _ssl.c:1359: error:14094418:SSL
> > > > routines:SSL3_READ_BYTES:tlsv1 alert unknown ca
> > > >
> > > >
> > > > I should also note in case it matters that the SSLEnabled=false, and
> > > > EnableSpiceRootCertificateValidation are both set as false are set
> in my
> > > > engine options.
> > > >
> > > > Am I doing something wrong here, I don't see any reason this should
> not
> > > work?
> > > >
> > > > - DHC
> > > >
> > > > _______________________________________________
> > > > Users mailing list
> > > > Users at ovirt.org
> > > > http://lists.ovirt.org/mailman/listinfo/users
> > > >
> > >
> >
>
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