a not-so-technical user's experience with Conductor

Martin Povolny mpovolny at redhat.com
Mon Oct 22 08:56:26 UTC 2012


Setup: Fedora 16 RPMs, on top of that Conductor from githup so that I
don't crash into what is already fixed.

Story:

---------------------------

Log in, adding a provider

http://192.168.122.174:3000/providers
#1 error: "Provider name must start with 'ec2-'"

WTF? why? the UI allows any name! (was told, this is fixed somewhere)

Under Providers I click "Provider Accounts" and start adding an account:
1 error prohibited this Provider Account from being saved

#2 error: "Cannot add the Provider Account." -- WTF message? tell's me nothing

Conductor (Rails) log, tells me nothing, but a quick look into /var/log/messages!! to find out I forgot to disable selinux
(DC already fixed the logging AFAIK)

Next I Navigate to Content; I see a catalog "Default" I click that

I see "New Deployable"

Now I remember my previous experience I know, that to make a deployable I need an Image!

#3 problem: the UI should tell me I need an image or I'm lost at this point

So I navigate back, looking for a place to work with images. Image -- that is probably "Content" so look there, not in "Environment"

nothing there

ok, I look into "Environments", it brings me to http://192.168.122.174:3000/pool_families (pool_families) ;-)

Wow, theres a greyed-out "Images" let's click 

Now failed again I see an empty list, 

#4 problem NO BUTTON to create an image from listing of images! WTF?

Ok, back to Environments, it has to be there, if it's not under Images

"Default" is clickable --> click and go to "http://192.168.122.174:3000/pools/1"

There's a text "Catalog Images" I click that it resembles "Images" I need an image to make a deployable, remember?

#5 problem shoot me! -- no link or button "New image" :-(

Back to http://192.168.122.174:3000/pool_families now I notice "Import Image", "New Image"

I choose "New Image" -->  http://192.168.122.174:3000/images/new?environment=1

There I read: "Choose one of the following options to upload or import an image into the "default Environment"."
Below is written "Choose an Image Template file:" but who reads all the text?

As an average linux user who is prompted for an image I provide an ISO image of the latest Ubuntu.

#6 problem: after a dozen of minutes I get an empty browser window; the Rails log reads:

  Rendered layouts/_admin_nav.html.haml (19.5ms)
  Rendered images/edit_xml.html.haml within layouts/application (365004.5ms)
  Rendered layouts/_new_notification.html.haml (45.3ms)
  Rendered layouts/_footer.html.haml (882.3ms)
  Rendered layouts/converge-ui/_header_layout.haml (4.9ms)
  Rendered layouts/converge-ui/_base.haml (41565.7ms)
  Rendered layouts/converge-ui/shell_layout.haml (201594.5ms)
Completed 200 OK in 753340ms (Views: 743206.8ms | ActiveRecord: 5.9ms)
terminate called after throwing an instance of 'std::runtime_error'
  what():  no allocation for outbound data
Aborted

hint: 1) add a size limit; 2) guess content type before starting XML parser

I restart Conductor, lost again -- where do I add an image?

#7 problem: in env/images there's a link to add image but in the list of images there's none; that is not intuitive

Next I manage to put in a valid XML and actually have a valid image

Next I found a button to create a Deployable from an image.

Next I get a page saying: "Images are not Built" and no hint what to do about it

http://192.168.122.174:3000/catalogs/1/deployables/1

There's a green button, it reads "Images valid" -- green is good, let's click it!

But it leads to a page to edit deployable XML
http://192.168.122.174:3000/catalogs/1/deployables/1 ---> click "Images Valid" (green button) ----> http://192.168.122.174:3000/catalogs/1/deployables/1/edit?edit_xml=true

#8 problem: "Images Valid" should read "edit the deployable XML" and is probably should not be green

On the page under "Build Status" there's "Images are not Built" with CAPITAL B. But there's no hint what shall I do about it.

I got an advice from Jenik:	"for now, got to images show page (env -> images)"

http://192.168.122.174:3000/images/067f4d76-19fa-11e2-8f46-525400b4f6a2

there's a grey button there.	It reads "Build". I clicked it

	Failed.  Response code = 500.  Response message = Internal Server Error.
	/home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:148:in `handle_response'
	 /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:115:in `request'
	 /home/martin/.gem/ruby/1.9.1/bundler/gems/aeolus-image-rubygem-4bffe3f60ce3/lib/aeolus_image/active_resource_oauth_client.rb:30:in `request_with_oauth'
	 /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:92:in `block in put'
	 /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:218:in `with_auth'
	 /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:92:in `put'

probably some component missing, the 'intuitive' code of 500 suggests I forgot to install or configure image-factory

problem was with oauth credentials

#8 problem: there should be a nice error message telling me about auth problem

#9 problem also the image factory log is a mess. User should get something like "invalid credentials for image factory, configure the image factory, please"

	2012-10-17 09:12:04,299 INFO root thread(MainThread) Message: Launched as daemon...
	2012-10-17 09:12:04,394 DEBUG root thread(MainThread) Message: Unable to start faulthandler - multi-thread tracebacks will not be available
	Traceback (most recent call last):
	  File "/usr/bin/imagefactory", line 176, in main
	    import faulthandler
	ImportError: No module named faulthandler

	2012-10-17 09:12:04,433 DEBUG paste.httpserver.ThreadPool thread(worker 0) Message: Started new worker 139691243161344: Initial worker pool

	2012-10-19 16:43:36,291 ERROR imgfac.rest.imagefactory thread(worker 4) Message: 'oauth_consumer_key'
	Traceback (most recent call last):
	  File "/usr/lib/python2.7/site-packages/imgfac/rest/imagefactory.py", line 49, in validate_two_leg_oauth
	    oauth_consumer = Consumer(request.params['oauth_consumer_key'])
	  File "/usr/lib/python2.7/site-packages/imgfac/rest/bottle.py", line 1528, in __getitem__
	    def __getitem__(self, key): return self.dict[key][-1]
	KeyError: 'oauth_consumer_key'
	(END)

  Failed.  Response code = 500.  Response message = Internal Server Error.
  /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:148:in `handle_response'
   /home/martin/.gem/ruby/1.9.1/bundler/gems/aeolus-image-rubygem-4bffe3f60ce3/lib/aeolus_image/active_resource_oauth_client.rb:52:in `request_with_oauth'
   /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:92:in `block in put'
   /home/martin/.gem/ruby/1.9.1/gems/activeresource-3.2.3/lib/active_resource/connection.rb:218:in `with_auth'
  	mpovolny: Hrm, in that case, I wonder if oauth.json was wrong.


  after I copied the credentials I got:

	2012-10-19 16:57:22,683 ERROR imgfac.rest.imagefactory thread(worker 9) Message: 'NoneType' object has no attribute 'encode'
	Traceback (most recent call last):
	  File "/usr/lib/python2.7/site-packages/imgfac/rest/imagefactory.py", line 50, in validate_two_leg_oauth
	    oauth_server.verify_request(req, oauth_consumer, None)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 712, in verify_request
	    self._check_signature(request, consumer, token)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 765, in _check_signature
	    valid = signature_method.check(request, consumer, token, signature)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 816, in check
	    built = self.sign(request, consumer, token)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 841, in sign
	    key, raw = self.signing_base(request, consumer, token)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 833, in signing_base
	    key = '%s&' % escape(consumer.secret)
	  File "/usr/lib/python2.7/site-packages/oauth2/__init__.py", line 158, in escape
	    return urllib.quote(s.encode('utf-8'), safe='~')
	AttributeError: 'NoneType' object has no attribute 'encode'

  probably did not copy them right, but again, I would expect a sane error message

Finally I disabled oauth, clicked the button and built the image. More
fun to come.

-- 
Martin Povolny <mpovolny at redhat.com>
tel. +420 777714458



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