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

Hi, that sure looks like postgresql SCL packages. Software collections are installed into /opt and need to be enabled using the `scl enable <collection name>` command to allow their usage. Best regards Martin Sivak On Mon, May 7, 2018 at 2:21 PM, Anastasiya Ruzhanskaya <anastasiya.ruzhanskaya(a)frtk.ru&gt; wrote: > 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-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 >> >> >