[arvados] Help on Login of Arvados Workbench.

[Pang Long]

(Prerequisites)The self-signed certificate is used. To check whether each
server run properly or not, only two VMs were set up(the VM1 for SSO, the
other VM2for API server, Git server, Workbench) under the direction of
http://doc.arvados.org/install/index.html.
     (Detailed description)
     (1)visit workbench
     (2)click Log in to Arvados
     (3)input the user name and password.
     (4) click sign in.
     After a long waiting, the browser reported there is an error,"Sorry,
something went wrong logging you in. Please try again.".
     Could you please give  me some hints or clues to solve this problem?
     The following is the logs.


   -     *on API/Git/Workbench server, on VM1 , /var/log/nginx/error.log:*

App 24530 stdout: (joshid) Callback phase initiated.
App 23772 stdout: (joshid) Authentication failure! timeout:
Errno::ETIMEDOUT, Connection timed out - connect(2) for "auth.xyworkflow"
port 443

   -      *on SSO server, on VM2,
   /var/www/arvados-sso/shared/log/production.log*

Started GET "/users/sign_in" for 127.0.0.1 at 2016-05-09 15:15:42 +0800
Processing by SessionsController#new as HTML
  Rendered sessions/new.html.erb within layouts/application (3.0ms)
  Rendered application/_links.html.erb (0.6ms)
Completed 200 OK in 11ms (Views: 10.3ms | ActiveRecord: 0.0ms)


Started POST "/users/sign_in" for 127.0.0.1 at 2016-05-09 15:15:47 +0800
Processing by SessionsController#create as HTML
  Parameters: {"utf8"=>"✓",
"authenticity_token"=>"E7K5dpfrnKLAY3e2djlpYZpPy5Ll1iibNADIKRYZN5I=",
"user"=>{"email"=>"hitpanglong at 163.com", "password"=>"[FILTERED]"},
"commit"=>"Sign in"}
Redirected to
https://auth.xyworkflow/auth/josh_id/authorize?response_type=code&client_id=arvados-server&redirect_uri=https%3A%2F%2Fplm16.xyworkflow%2Fauth%2Fjoshid%2Fcallback%3Freturn_to%3Dhttps%253A%252F%252Fworkbench.plm16.xyworkflow%252Fusers%252Fwelcome%253Freturn_to%253D%25252F&auth_provider&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab
Completed 302 Found in 64ms (ActiveRecord: 0.3ms)


Started GET
"/auth/josh_id/authorize?response_type=code&client_id=arvados-server&redirect_uri=https%3A%2F%2Fplm16.xyworkflow%2Fauth%2Fjoshid%2Fcallback%3Freturn_to%3Dhttps%253A%252F%252Fworkbench.plm16.xyworkflow%252Fusers%252Fwelcome%253Freturn_to%253D%25252F&auth_provider&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab"
for 127.0.0.1 at 2016-05-09 15:15:47 +0800
Processing by AuthController#authorize as HTML
  Parameters: {"response_type"=>"code", "client_id"=>"arvados-server",
"redirect_uri"=>"
https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F",
"auth_provider"=>nil,
"state"=>"7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab"}
Redirected to
https://plm16.xyworkflow/auth/joshid/callback?return_to=https%3A%2F%2Fworkbench.plm16.xyworkflow%2Fusers%2Fwelcome%3Freturn_to%3D%252F&code=4f21d265337016b00e9889c852a2a594&response_type=code&state=7da100019dd1b4b002d5eebc245c8c3633e9ff57df8ad4ab
Completed 302 Found in 4ms (ActiveRecord: 2.1ms)
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