Re: [ovirt-devel] oVirt messages from engine to vdsm

On Mon, May 7, 2018 at 11:40 AM, Anastasiya Ruzhanskaya < anastasiya.ruzhanskaya(a)frtk.ru&gt; wrote: > If the engine user is not accessible directly, why then in this command > you use it?: > > psql -U engine engine -c "UPDATE vdc_options set option_value = 'false' > WHERE option_name = 'SSLEnabled';" > > I am not really good in managing databases, I also didn't have postgresql > installed after finishing oVirt engine installation and even managing to > deploy everything. Does it mean that no database was created at all? I have > chosen automatic and local creation in all fields related to database while > installing oVirt engine. > ​Can you paste the output of the following command rpm -qa |grep postgres ​ > > > 2018-05-07 11:00 GMT+03:00 Martin Sivak <msivak(a)redhat.com&gt;: > >> Hi, >> >> I think what you are looking for is mostly this: >> https://github.com/oVirt/vdsm/blob/master/lib/vdsm/api/vdsm-api.yml >> >> The best way to see what the traffic is is to disable SSL. The >> postgres database is installed and accessible using the postgres user >> (the engine user is not allowed to access it directly). >> >> You might also be interested in the vdsm fake project we use as node >> simulator. Its readme will tell you exactly how to do this: >> https://github.com/oVirt/ovirt-vdsmfake >> >> I wrote an article some time ago that explained how to setup a >> development environment without real hosts: >> https://www.ovirt.org/blog/2016/11/testing-ovirt-changes-wit >> hout-cluster/ >> >> Might I ask what you goal is? >> >> Best regards >> >> -- >> Martin Sivak >> SLA / oVirt >> >> On Sun, May 6, 2018 at 6:26 AM, Anastasiya Ruzhanskaya >> <anastasiya.ruzhanskaya(a)frtk.ru&gt; wrote: >> > Hello everyone! >> > Currently I want to determine what information is included in messages >> > passing from oVirt engine to VDSM on ovirt-node. >> > >> > I made up a really simple configuration with one VM representing >> engine, >> > another - node, a managed to successfully launch a single VM on this >> node. >> > However, I have chosen to configure everything automatically. Currently >> > traffic is encrypted with default certificates. >> > So, there are three options for me and no one of them really works. >> > >> > 1) Find the format of messages ( what the fields are, session id for >> > example) in docs, but I didn't manage to find it; >> > 2) Use wireshark to decrypt the traffic and the apply maybe a json >> > -dissector to the decrypted data. I have tried many solutions ( thanks >> god I >> > have rsa private and public keys but there is another session key >> which is >> > generated every time engine starts to communicate with vdsm, which I >> cannot >> > get with the help of sslkeylog file or ld_preload technology. >> > Maybe someone knows the exact methodology how to do this correctly? >> > >> > 3) Turn off ssl in oVirt. It is simple to do that for vdsm, but for >> engine, >> > according to answers on oVirt site, I should do 2 requests to the >> database. >> > I was really surprised that psql was not installed by oVirt on my >> system. >> > How did it then created a default database? ( I have chosen to create >> all >> > locally and with default configurations). >> > I mean these two commands : >> > https://www.ovirt.org/develop/developer-guide/vdsm/connectin >> g-development-vdsm-to-engine/ >> > . I have a following error there : >> > psql: FATAL: Peer authentication failed for user "engine" >> > >> > Could you please guide my what method is the best and how should I >> correct >> > my faults there? >> > >> > >> > _______________________________________________ >> > Devel mailing list >> > Devel(a)ovirt.org >> > http://lists.ovirt.org/mailman/listinfo/devel >> > > > _______________________________________________ > Devel mailing list > Devel(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/devel >