Sunday, 2019-03-10

« Saturday, 2019-03-09 Index Monday, 2019-03-11 »
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SP33DHello frinds sorry that i ask here but i had a hardtime following the instructions and i think i am missing simply something16:12
SP33Di am trying to use a swift container that a administrator made for me and i am to silly to understand how to authencicate to it16:13
SP33Di got a username and password but i need to do something diffrent to auth i think :)16:13
SP33Di also got 2 diffrent endpoints one for the swift container and a total diffrent for auth16:13
SP33Dit would help me if there would be any real world example that shows the flow16:17
SP33Di think i need to do a post request to some keystone url then retrive a token and then do a post request to the swift storage container using the token16:17
SP33Dsomething like that but its no where clear written16:17
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SP33Di only could do the first step general authencication16:44
SP33Dthen i got a token but that gets me no where else i think :)16:44
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DHESP33D: with swift you get a token from either swift itself or keystone (depending on configuration), then you submit your requests with the HTTP header "X-Auth-Token: <token goes here>"17:01
SP33Dya i got that working a few secunds ago but i am not sure why this is so complicated17:01
SP33Di now did auth via post to the keystone url17:02
SP33Di got a big json back with a token17:02
SP33Dand then i did a put request to the swift url with x-auth-token that i got from keystone befor17:02
SP33Dand that worked17:02
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SP33Dso when i understand you right i should be able to get such a x auth token directly from my swift url?17:02
DHEno. there's two default ways to authenticate against swift: swift-builtin authentication, or keystone. a cluster will use one or the other.17:03
DHElacking detailed information, I'm trying to cover all my bases in my answer17:03
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DHEalso in that json will be the token expiration time. expect the token to expire whether you are actively using it or not.17:04
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SP33Dyes i saw this already so my code needs to handle that17:05
SP33Di will have a hard time to write my own backup client :)17:06
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SP33Di don't understand why this project thinks this is more secure?17:06
SP33Das i will always use username password combo to get my token17:06
SP33Dwhy don't let me directly use that to do my put request17:06
SP33Dthe token adds no additional security17:07
DHEso there's a little trick I learned a few months back. there's probably a feature where you can assign a secret key to an account or container, and then put a "?param=value&param=value" string on the end to self-authenticate all requests without requiring keystone.17:07
DHEtokens are just how you authenticate to services in openstack. it's basically a cookie in traditional HTTP transactions17:08
SP33Dsounds good17:08
SP33Di am just a bit frustrated that such a simple job was so complex at the beginning :)i am happy now as i can upload files that a good result at all17:09
SP33D:D17:09
SP33Dmaybe i find out something about the meta options i readed something about adding meta to files17:10
DHEanyway, the above feature is called tempurl if you want to search the swift docs17:10
DHEYeah, your requests can have basically arbitrary "X-Object-Meta-XXXXX: YYYYYY" headers (insert your own XXX and YYY) and the GET later will return it back to you17:10
SP33Dwow this tempurl feature blows my head away17:12
SP33Di am senior lead engineer when i read first set a header via client my head explodes17:12
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SP33Dhow should my client set a header on a remote location lol17:12
SP33Dbut thanks anyway :) i will go with this token request stuff i think17:13
SP33Dbecause i can in general understand that17:13
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SP33Dfor me this all looks more like security trought obscurity17:14
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SP33Di will code a little credentials store that keeps track of the current valid token and return that befor it expires it will create a new token and return that17:16
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DHEwell this is supposed to be all API stuff. presumably you're writing an application and maybe libcurl will be doing the work. or an existing Swift client library, but the API isn't that hard that you couldn't implement just the basic features you need yourself using only CURL17:19
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SP33Dfor me at last its hard because there are to many endpoints and all kind of options18:26
SP33Dbut its ok probally thats the only way to solve that18:27
SP33Don the long run i see a lot of needs for client software (high level tools) the python swift client for example looks good but i will need to recode it in nodejs18:29
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LaurentDumontHi everyone, I'm trying to get Openstack running a 4 node install (one controller and three compute). Controller seem to be running okay but I cannot start Nova-Compute on a compute node.20:48
LaurentDumontThe surprising thing is that there is little logs.20:49
LaurentDumontLitterally juste : "compute01.cmaker.studio systemd[1]: Starting OpenStack Nova Compute Server..."20:49
LaurentDumontAnd it hangs there.20:49
LaurentDumontI can stop the service.20:49
LaurentDumontIf I start Nova straight from the cli with "nova-compute --debug", I get zero output.20:49
DHElogs should be in /var/log/nova20:50
LaurentDumontJust the following stuff20:51
LaurentDumonthttps://cl1p.net/jltvhsxlza20:51
LaurentDumontHum, not sure why this didn't work.20:52
LaurentDumontIt looks like I'm not the only one20:53
LaurentDumonthttps://ask.openstack.org/en/question/117610/nova-compute-service-start-stucks-in-a-loop/20:53
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LarsErikPwell, your last link mentioned something about connectivity to rabbitmq.. did you check that? :-)20:58
LaurentDumontLooking into it :P20:58
LaurentDumontI'm a bit rusty, I ran Mitaka the last time following the same deployment and it went fine.20:59
LaurentDumontI'm just surprised the compute service is not a bit more verbose when it fails to do something.20:59
LarsErikPanyhow; the nova-compute even with no rabbitmq connectivity though.. it should just.. complain. a lot.20:59
LarsErikPoh. "should start" slipped out of that sentence..20:59
LaurentDumontFirst time I actually complain about a service without errors logs :P21:01
LaurentDumontI'll dig into this a bit more21:01
LarsErikPthat's weird indeed.. Never seen nova-compute failing to produce logs.. (your clip.net link was empty btw)21:02
DHEfrom "hangs" I might guess you have something filtering the rabbitmq connection maybe?21:03
LaurentDumonthttps://gist.github.com/LaurentDumont/3e70af9aa20d4203ff416de07f882e1521:03
LaurentDumontYeah, I'm dumping connection towards the controller to see if there is something relevant. And reviewing the rabbitmq that's in place.21:04
LaurentDumontBut I would expected Nova to timeout and fail.21:04
LaurentDumontI've let it run for a few minutes without a peep.21:04
LarsErikPthat log didn't help much...21:05
LaurentDumontThat's all I have from the file :P21:06
LaurentDumontThe rest is just my keyboard interrupts.21:06
LarsErikPI guess "openstack compute service list" tells you the nova-compute is down as well?21:06
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LarsErikP(the command came from the top of my head, may include slight mistakes)21:06
Haunted330This room is closed. You are going to have to leave.21:08
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LaurentDumontHum, it's missing from the controller node. It just lists conductor, scheduler and consoleauth.21:10
LaurentDumontI'll re-run through the deployment and see if I forgot something.21:10
LaurentDumontThanks for the pointers.21:11
LarsErikPif that command doesn't show it all, that means it has never ever been able to talk to rabbitmq21:12
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LarsErikPso maybe check both network connectivity (firewall, routing etc) and credentials to the rabbit vhost :)21:13
LaurentDumontWill do21:14
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Haunted330This room is closed. You are going to have to leave.21:21
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