J.Andreina created KNOX-1184:
--------------------------------
Summary: [Service Discovery] Atlas endpoint url is not updated
properly in the generated topology
Key: KNOX-1184
URL: https://issues.apache.org/jira/browse/KNOX-1184
Project: Apache Knox
Issue Type: Bug
Affects Versions: 0.14.0
Environment: knox proxy and service discovery enabled
Reporter: J.Andreina
Fix For: 1.1.0
Service discovery:
Verified knox proxy feature through the generated topology file from service
discovery feature
*Expectation:*
*=========*
Generated topology file should have only the active atlas endpoint url , as
HaProvider for atlas is not yet supported
when we access atlas through knox proxy, should'nt expose the atlas ip and port
information.
{color:#FF0000}*Actual:*{color}
{color:#FF0000}*=====*{color}
Generated topology has both passive and active url for "ATLAS" service and
passive url for "ATLAS-API" service.
Hence accessing atlas through knox proxy redirects me to the atlas active
endpoint url, hence knox proxy fails.
Explained the failure case in scenario 1 below
Environment:
============
Atlas has 2 host
host1 - acive_host
host2 - passive_host
{color:red}Scenario 1:
==========={color}
Generated topology using service discovery feature
{noformat}
<service>
<role>ATLAS</role>
<url>http://{color:#FF0000}host2{color}:21000</url>
<url>http://host1:21000</url>
</service>
<service>
<role>ATLAS-API</role>
<url>http://{color:#FF0000}host2{color}:21000</url>
</service>
{noformat}
Here accessing the atlas through knox proxy redirects me to active atlas host1
url
{color:#d04437}accessing url : https://<gateway-host>:8443/gateway/ui/atlas
redirected url : http:/host1:21000/login.jsp{color}
{color:#14892c}Scenario 2:
=============={color}
when i manually modified the atlas endpoint to only active url in generated
topology file then the knox proxy works fine
{noformat}
</gateway>
<service>
<role>ATLAS</role>
<url>http://host1:21000</url>
</service>
<service>
<role>ATLAS-API</role>
<url>http://host1:21000</url>
</service>
{noformat}
{color:#14892c}accessing url : https://gateway-host:8443/gateway/ui/atlas
redirected url: https://gateway-host:8443/gateway/ui/atlas/login.jsp{color}
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