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

rpm -qa |grep postgres rh-postgresql95-postgresql-libs-9.5.9-1.el7.x86_64 postgresql-libs-9.2.23-3.el7_4.x86_64 rh-postgresql95-runtime-2.2-2.el7.x86_64 rh-postgresql95-postgresql-9.5.9-1.el7.x86_64 postgresql-jdbc-9.2.1002-5.el7.noarch postgresql-contrib-9.2.23-3.el7_4.x86_64 rh-postgresql95-postgresql-server-9.5.9-1.el7.x86_64 postgresql-9.2.23-3.el7_4.x86_64 rh-postgresql95-postgresql-contrib-9.5.9-1.el7.x86_64 collectd-postgresql-5.8.0-2.el7.x86_64 postgresql-server-9.2.23-3.el7_4.x86_64 [skotti@localhost ~]$ psql -U postgres psql: FATAL: Peer authentication failed for user "postgres" But I actually installed it manually, still no succeed. But ovirt engine is working. 2018-05-07 5:22 GMT-04:00 Eli Mesika <emesika(a)redhat.com&gt;: > > > > 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-without-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/connecting-development... >>> > . 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 > >