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From Olivér Szabó (JIRA) <j...@apache.org>
Subject [jira] [Updated] (AMBARI-19822) Add infra-solr-plugin for authorization (with Kerberos)
Date Fri, 24 Feb 2017 14:50:44 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-19822?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Olivér Szabó updated AMBARI-19822:
----------------------------------
    Description: 
Problem:
If an ambari cluster is secured and kerberos authentication is used for Solr, we need (default)
authorizations as well to make sure only the specific service users (ranger, atlas, logsearch)
can access their collections (and solr user as well)

Solution:
Although RuleBasedAuthorizationPlugin (https://cwiki.apache.org/confluence/display/solr/Rule-Based+Authorization+Plugin)
seems to be a good solution here, to map default users to default permissions, unfortunately,
permissions and roles using principal name for mapping (not username) from the authentication
tokens. Also Solr name rules applied on the username and not on the principal, therefore we
need the fully qualified hostname as well in the role-permission mapping. In order to avoid
that issue, I added an own plugin ({{org.apache.ambari.infra.security.InfraRuleBasedAuthorizationPlugin}}),
to map users with {{<name>@<DOMAIN>}} format.
Also we should keep the old behaviour of RuleBasedAuthorizationPlugin, so user can still able
to define user-role mappings with fully qualified names.
In case of we need strict host validations i added 2 new json property for that:
1. { "user-host" : {"<username>" : [<hostnames array>]} }
2. {"user-host-regex" : {"<username>" : "hostname-regex"} }

{{user-host-regex}} has higher precedence than {{user-host}}

  was:
Problem:
If an ambari cluster is secured and kerberos authentication is used for Solr, we need (default)
authorizations as well to make sure only the specific service users (ranger, atlas, logsearch)
can access their collections (and solr user as well)

Solution:
Although RuleBasedAuthorizationPlugin seems to be a good solution here, to map default users
to default permissions, unfortunately, permissions and roles using principal name for mapping
(not username) from the authentication tokens. Also Solr name rules applied on the username
and not on the principal, therefore we need the fully qualified hostname as well in the role-permission
mapping. In order to avoid that issue, I added an own plugin ({{org.apache.ambari.infra.security.InfraRuleBasedAuthorizationPlugin}}),
to map users with {{<name>@<DOMAIN>}} format.
Also we should keep the old behaviour of RuleBasedAuthorizationPlugin, so user can still able
to define user-role mappings with fully qualified names.
In case of we need strict host validations i added 2 new json property for that:
1. { "user-host" : {"<username>" : [<hostnames array>]} }
2. {"user-host-regex" : {"<username>" : "hostname-regex"} }

{{user-host-regex}} has higher precedence than {{user-host}}


> Add infra-solr-plugin for authorization (with Kerberos)
> -------------------------------------------------------
>
>                 Key: AMBARI-19822
>                 URL: https://issues.apache.org/jira/browse/AMBARI-19822
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-logsearch, ambari-server
>    Affects Versions: 2.5.0
>            Reporter: Olivér Szabó
>            Assignee: Olivér Szabó
>             Fix For: 2.5.0
>
>         Attachments: AMBARI-19822.patch
>
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Problem:
> If an ambari cluster is secured and kerberos authentication is used for Solr, we need
(default) authorizations as well to make sure only the specific service users (ranger, atlas,
logsearch) can access their collections (and solr user as well)
> Solution:
> Although RuleBasedAuthorizationPlugin (https://cwiki.apache.org/confluence/display/solr/Rule-Based+Authorization+Plugin)
seems to be a good solution here, to map default users to default permissions, unfortunately,
permissions and roles using principal name for mapping (not username) from the authentication
tokens. Also Solr name rules applied on the username and not on the principal, therefore we
need the fully qualified hostname as well in the role-permission mapping. In order to avoid
that issue, I added an own plugin ({{org.apache.ambari.infra.security.InfraRuleBasedAuthorizationPlugin}}),
to map users with {{<name>@<DOMAIN>}} format.
> Also we should keep the old behaviour of RuleBasedAuthorizationPlugin, so user can still
able to define user-role mappings with fully qualified names.
> In case of we need strict host validations i added 2 new json property for that:
> 1. { "user-host" : {"<username>" : [<hostnames array>]} }
> 2. {"user-host-regex" : {"<username>" : "hostname-regex"} }
> {{user-host-regex}} has higher precedence than {{user-host}}



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