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Posted to commits@knox.apache.org by pz...@apache.org on 2018/07/10 16:01:41 UTC
svn commit: r1835573 - in /knox: site/ site/books/knox-0-10-0/
site/books/knox-0-11-0/ site/books/knox-0-12-0/ site/books/knox-0-13-0/
site/books/knox-0-14-0/ site/books/knox-0-4-0/ site/books/knox-0-5-0/
site/books/knox-0-6-0/ site/books/knox-0-7-0/ s...
Author: pzampino
Date: Tue Jul 10 16:01:40 2018
New Revision: 1835573
URL: http://svn.apache.org/viewvc?rev=1835573&view=rev
Log:
Updated the section on ZooKeeper-based HaProvider configuration
Modified:
knox/site/books/knox-0-10-0/deployment-overview.png
knox/site/books/knox-0-10-0/deployment-provider.png
knox/site/books/knox-0-10-0/deployment-service.png
knox/site/books/knox-0-10-0/general_saml_flow.png
knox/site/books/knox-0-10-0/runtime-overview.png
knox/site/books/knox-0-10-0/runtime-request-processing.png
knox/site/books/knox-0-11-0/deployment-overview.png
knox/site/books/knox-0-11-0/deployment-provider.png
knox/site/books/knox-0-11-0/deployment-service.png
knox/site/books/knox-0-11-0/general_saml_flow.png
knox/site/books/knox-0-11-0/runtime-overview.png
knox/site/books/knox-0-11-0/runtime-request-processing.png
knox/site/books/knox-0-12-0/deployment-overview.png
knox/site/books/knox-0-12-0/deployment-provider.png
knox/site/books/knox-0-12-0/deployment-service.png
knox/site/books/knox-0-12-0/general_saml_flow.png
knox/site/books/knox-0-12-0/runtime-overview.png
knox/site/books/knox-0-12-0/runtime-request-processing.png
knox/site/books/knox-0-13-0/deployment-overview.png
knox/site/books/knox-0-13-0/deployment-provider.png
knox/site/books/knox-0-13-0/deployment-service.png
knox/site/books/knox-0-13-0/general_saml_flow.png
knox/site/books/knox-0-13-0/runtime-overview.png
knox/site/books/knox-0-13-0/runtime-request-processing.png
knox/site/books/knox-0-14-0/deployment-overview.png
knox/site/books/knox-0-14-0/deployment-provider.png
knox/site/books/knox-0-14-0/deployment-service.png
knox/site/books/knox-0-14-0/general_saml_flow.png
knox/site/books/knox-0-14-0/runtime-overview.png
knox/site/books/knox-0-14-0/runtime-request-processing.png
knox/site/books/knox-0-4-0/deployment-overview.png
knox/site/books/knox-0-4-0/deployment-provider.png
knox/site/books/knox-0-4-0/deployment-service.png
knox/site/books/knox-0-4-0/runtime-overview.png
knox/site/books/knox-0-4-0/runtime-request-processing.png
knox/site/books/knox-0-5-0/deployment-overview.png
knox/site/books/knox-0-5-0/deployment-provider.png
knox/site/books/knox-0-5-0/deployment-service.png
knox/site/books/knox-0-5-0/runtime-overview.png
knox/site/books/knox-0-5-0/runtime-request-processing.png
knox/site/books/knox-0-6-0/deployment-overview.png
knox/site/books/knox-0-6-0/deployment-provider.png
knox/site/books/knox-0-6-0/deployment-service.png
knox/site/books/knox-0-6-0/runtime-overview.png
knox/site/books/knox-0-6-0/runtime-request-processing.png
knox/site/books/knox-0-7-0/deployment-overview.png
knox/site/books/knox-0-7-0/deployment-provider.png
knox/site/books/knox-0-7-0/deployment-service.png
knox/site/books/knox-0-7-0/general_saml_flow.png
knox/site/books/knox-0-7-0/runtime-overview.png
knox/site/books/knox-0-7-0/runtime-request-processing.png
knox/site/books/knox-0-8-0/deployment-overview.png
knox/site/books/knox-0-8-0/deployment-provider.png
knox/site/books/knox-0-8-0/deployment-service.png
knox/site/books/knox-0-8-0/general_saml_flow.png
knox/site/books/knox-0-8-0/runtime-overview.png
knox/site/books/knox-0-8-0/runtime-request-processing.png
knox/site/books/knox-0-9-0/deployment-overview.png
knox/site/books/knox-0-9-0/deployment-provider.png
knox/site/books/knox-0-9-0/deployment-service.png
knox/site/books/knox-0-9-0/general_saml_flow.png
knox/site/books/knox-0-9-0/runtime-overview.png
knox/site/books/knox-0-9-0/runtime-request-processing.png
knox/site/books/knox-0-9-1/deployment-overview.png
knox/site/books/knox-0-9-1/deployment-provider.png
knox/site/books/knox-0-9-1/deployment-service.png
knox/site/books/knox-0-9-1/general_saml_flow.png
knox/site/books/knox-0-9-1/runtime-overview.png
knox/site/books/knox-0-9-1/runtime-request-processing.png
knox/site/books/knox-1-0-0/deployment-overview.png
knox/site/books/knox-1-0-0/deployment-provider.png
knox/site/books/knox-1-0-0/deployment-service.png
knox/site/books/knox-1-0-0/general_saml_flow.png
knox/site/books/knox-1-0-0/runtime-overview.png
knox/site/books/knox-1-0-0/runtime-request-processing.png
knox/site/books/knox-1-1-0/deployment-overview.png
knox/site/books/knox-1-1-0/deployment-provider.png
knox/site/books/knox-1-1-0/deployment-service.png
knox/site/books/knox-1-1-0/general_saml_flow.png
knox/site/books/knox-1-1-0/runtime-overview.png
knox/site/books/knox-1-1-0/runtime-request-processing.png
knox/site/books/knox-1-1-0/user-guide.html
knox/site/index.html
knox/site/issue-tracking.html
knox/site/license.html
knox/site/mail-lists.html
knox/site/project-info.html
knox/site/team-list.html
knox/trunk/books/1.1.0/config.md
Modified: knox/site/books/knox-0-10-0/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-10-0/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-0-10-0/deployment-provider.png
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Modified: knox/site/books/knox-0-10-0/deployment-service.png
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Modified: knox/site/books/knox-0-10-0/general_saml_flow.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-10-0/general_saml_flow.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-0-10-0/runtime-overview.png
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Modified: knox/site/books/knox-0-10-0/runtime-request-processing.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-10-0/runtime-request-processing.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-0-11-0/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-11-0/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-0-11-0/deployment-provider.png
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Modified: knox/site/books/knox-0-11-0/deployment-service.png
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Modified: knox/site/books/knox-0-11-0/general_saml_flow.png
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Modified: knox/site/books/knox-0-11-0/runtime-overview.png
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Modified: knox/site/books/knox-0-12-0/deployment-overview.png
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Modified: knox/site/books/knox-0-12-0/general_saml_flow.png
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Modified: knox/site/books/knox-0-12-0/runtime-request-processing.png
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Modified: knox/site/books/knox-0-13-0/deployment-overview.png
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Modified: knox/site/books/knox-0-13-0/deployment-service.png
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Modified: knox/site/books/knox-0-13-0/general_saml_flow.png
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Modified: knox/site/books/knox-0-14-0/deployment-overview.png
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Modified: knox/site/books/knox-0-9-0/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-0/deployment-provider.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/deployment-provider.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-0/deployment-service.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/deployment-service.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-0/general_saml_flow.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/general_saml_flow.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-0/runtime-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/runtime-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-0/runtime-request-processing.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-0/runtime-request-processing.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/deployment-provider.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/deployment-provider.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/deployment-service.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/deployment-service.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/general_saml_flow.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/general_saml_flow.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/runtime-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/runtime-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-0-9-1/runtime-request-processing.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-0-9-1/runtime-request-processing.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-1-0-0/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-1-0-0/deployment-provider.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/deployment-provider.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-1-0-0/deployment-service.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/deployment-service.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-0-0/general_saml_flow.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/general_saml_flow.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-0-0/runtime-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/runtime-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
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Modified: knox/site/books/knox-1-0-0/runtime-request-processing.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-0-0/runtime-request-processing.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/deployment-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/deployment-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/deployment-provider.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/deployment-provider.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/deployment-service.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/deployment-service.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/general_saml_flow.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/general_saml_flow.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/runtime-overview.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/runtime-overview.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/runtime-request-processing.png
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/runtime-request-processing.png?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
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Modified: knox/site/books/knox-1-1-0/user-guide.html
URL: http://svn.apache.org/viewvc/knox/site/books/knox-1-1-0/user-guide.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/books/knox-1-1-0/user-guide.html (original)
+++ knox/site/books/knox-1-1-0/user-guide.html Tue Jul 10 16:01:40 2018
@@ -869,59 +869,34 @@ ip-10-39-107-209.ec2.internal
</topology>
</code></pre><h5><a id="Hostmap+Provider+Configuration">Hostmap Provider Configuration</a> <a href="#Hostmap+Provider+Configuration"><img src="markbook-section-link.png"/></a></h5><p>Details about each provider configuration element is enumerated below.</p>
<dl><dt>topology/gateway/provider/role</dt><dd>The role for a Hostmap provider must always be <code>hostmap</code>.</dd><dt>topology/gateway/provider/name</dt><dd>The Hostmap provider supplied out-of-the-box is selected via the name <code>static</code>.</dd><dt>topology/gateway/provider/enabled</dt><dd>Host mapping can be enabled or disabled by providing <code>true</code> or <code>false</code>.</dd><dt>topology/gateway/provider/param</dt><dd>Host mapping is configured by providing parameters for each external to internal mapping.</dd><dt>topology/gateway/provider/param/name</dt><dd>The parameter names represent the external host names associated with the internal host names provided by the value element. This can be a comma separated list of host names that all represent the same physical host. When mapping from internal to external host name the first external host name in the list is used.</dd><dt>topology/gateway/provider/param/value</dt><dd>The parameter values represent the int
ernal host names associated with the external host names provider by the name element. This can be a comma separated list of host names that all represent the same physical host. When mapping from external to internal host names the first internal host name in the list is used.</dd>
-</dl><h4><a id="Simplified+Topology+Descriptors">Simplified Topology Descriptors</a> <a href="#Simplified+Topology+Descriptors"><img src="markbook-section-link.png"/></a></h4><p>Simplified descriptors are a means to facilitate provider configuration sharing and service endpoint discovery. Rather than editing an XML topology descriptor, it’s possible to create a simpler YAML (or JSON) descriptor specifying the desired contents of a topology, which will yield a full topology descriptor and deployment.</p><h5><a id="Externalized+Provider+Configurations">Externalized Provider Configurations</a> <a href="#Externalized+Provider+Configurations"><img src="markbook-section-link.png"/></a></h5><p>Sometimes, the same provider configuration is applied to multiple Knox topologies. With the provider configuration externalized from the simple descriptors, a single configuration can be referenced by multiple topologies. This helps reduce the duplication of configuration, and the need to updat
e multiple configuration files when a policy change is required. Updating a provider configuration will trigger an update to all those topologies that reference it.</p><p>The contents of externalized provider configuration is identical to the gateway element from a full topology descriptor. The only difference is that it’s defined in its own XML file in <code>{GATEWAY_HOME}/conf/shared-providers/</code></p><p><em>Provider Configuration Example</em></p>
-<pre><code><gateway>
- <provider>
- <role>authentication</role>
- <name>ShiroProvider</name>
- <enabled>true</enabled>
- <param>
- <name>sessionTimeout</name>
- <value>30</value>
- </param>
- <param>
- <name>main.ldapRealm</name>
- <value>org.apache.knox.gateway.shirorealm.KnoxLdapRealm</value>
- </param>
- <param>
- <name>main.ldapContextFactory</name>
- <value>org.apache.knox.gateway.shirorealm.KnoxLdapContextFactory</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory</name>
- <value>$ldapContextFactory</value>
- </param>
- <param>
- <name>main.ldapRealm.userDnTemplate</name>
- <value>uid={0},ou=people,dc=hadoop,dc=apache,dc=org</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory.url</name>
- <value>ldap://localhost:33389</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory.authenticationMechanism</name>
- <value>simple</value>
- </param>
- <param>
- <name>urls./**</name>
- <value>authcBasic</value>
- </param>
- </provider>
-
- <provider>
- <role>identity-assertion</role>
- <name>Default</name>
- <enabled>true</enabled>
- </provider>
-
- <provider>
- <role>hostmap</role>
- <name>static</name>
- <enabled>true</enabled>
- <param><name>localhost</name><value>sandbox,sandbox.hortonworks.com</value></param>
- </provider>
-</gateway>
+</dl><h4><a id="Simplified+Topology+Descriptors">Simplified Topology Descriptors</a> <a href="#Simplified+Topology+Descriptors"><img src="markbook-section-link.png"/></a></h4><p>Simplified descriptors are a means to facilitate provider configuration sharing and service endpoint discovery. Rather than editing an XML topology descriptor, it’s possible to create a simpler YAML (or JSON) descriptor specifying the desired contents of a topology, which will yield a full topology descriptor and deployment.</p><h5><a id="Externalized+Provider+Configurations">Externalized Provider Configurations</a> <a href="#Externalized+Provider+Configurations"><img src="markbook-section-link.png"/></a></h5><p>Sometimes, the same provider configuration is applied to multiple Knox topologies. With the provider configuration externalized from the simple descriptors, a single configuration can be referenced by multiple topologies. This helps reduce the duplication of configuration, and the need to updat
e multiple configuration files when a policy change is required. Updating a provider configuration will trigger an update to all those topologies that reference it.</p><p>The contents of externalized provider configuration details are identical to the contents of the gateway element from a full topology descriptor. The only difference is that those details are defined in a separate JSON/YAML file in <code>{GATEWAY_HOME}/conf/shared-providers/</code>, which is then referenced by one or more descriptors.</p><p><em>Provider Configuration Example</em></p>
+<pre><code>{
+ "providers": [
+ {
+ "role": "authentication",
+ "name": "ShiroProvider",
+ "enabled": "true",
+ "params": {
+ "sessionTimeout": "30",
+ "main.ldapRealm": "org.apache.knox.gateway.shirorealm.KnoxLdapRealm",
+ "main.ldapContextFactory": "org.apache.knox.gateway.shirorealm.KnoxLdapContextFactory",
+ "main.ldapRealm.contextFactory": "$ldapContextFactory",
+ "main.ldapRealm.userDnTemplate": "uid={0},ou=people,dc=hadoop,dc=apache,dc=org",
+ "main.ldapRealm.contextFactory.url": "ldap://localhost:33389",
+ "main.ldapRealm.contextFactory.authenticationMechanism": "simple",
+ "urls./**": "authcBasic"
+ }
+ },
+ {
+ "name": "static",
+ "role": "hostmape",
+ "enabled": "true",
+ "params": {
+ "localhost": "sandbox,sandbox.hortonworks.com"
+ }
+ }
+ ]
+}
</code></pre><h6><a id="Sharing+HA+Providers">Sharing HA Providers</a> <a href="#Sharing+HA+Providers"><img src="markbook-section-link.png"/></a></h6><p>HA Providers are a special concern with respect to sharing provider configuration because they include service-specific (and possibly cluster-specific) configuration.</p><p>This requires extra attention because the service configurations corresponding to the associated HA Provider configuration must contain the correct content to function properly.</p><p>For a shared provider configuration with an HA Provider service:</p>
<ul>
<li>If the referencing descriptor does not declare the corresponding service, then the HA Provider configuration is effectively ignored since the service isn’t exposed by the topology.</li>
@@ -931,7 +906,51 @@ ip-10-39-107-209.ec2.internal
<li>Otherwise, the URLs must be explicitly specified for that service in the descriptor.</li>
</ul></li>
<li>If the descriptor content is correct, but the cluster service is not configured for HA, then the HA behavior obviously won’t work.</li>
-</ul><p><em>Apache ZooKeeper-based HA Provider Services</em></p><p>The HA Provider configuration for some services (e.g., <a href="#HiveServer2+HA">HiveServer2</a>, <a href="#Kafka+HA">Kafka</a>) includes references to Apache ZooKeeper hosts (i.e., the ZooKeeper ensemble). It’s important to understand the relationship of that ensemble configuration to the topologies referencing it. These ZooKeeper ensembles are often cluster-specific. If the ZooKeeper ensemble in the provider configuration is part of cluster A, then it’s probably incorrect to reference it in a topology for cluster B since the Hadoop service endpoints will probably be the wrong ones. However, if multiple clusters are working with a common ZooKeeper ensemble, then sharing this provider configuration <em>may</em> be appropriate. Note that service endpoint discovery does <em>not</em> handle these ZooKeeper ensemble details; they are static provider configuration.</p><p>Be sure to pay extra attention when sha
ring HA Provider configuration across topologies.</p><h5><a id="Simplified+Descriptor+Files">Simplified Descriptor Files</a> <a href="#Simplified+Descriptor+Files"><img src="markbook-section-link.png"/></a></h5><p>Simplified descriptors allow service URLs to be defined explicitly, just like full topology descriptors. However, if URLs are omitted for a service, Knox will attempt to discover that service’s URLs from the Hadoop cluster. Currently, this behavior is only supported for clusters managed by Ambari. In any case, the simplified descriptors are much more concise than a full topology descriptor.</p><p><em>Descriptor Properties</em></p>
+</ul><p><strong><em>Apache ZooKeeper-based HA Provider Services</em></strong></p><p>The HA Provider configuration for some services (e.g., <a href="#HiveServer2+HA">HiveServer2</a>, <a href="#Kafka+HA">Kafka</a>) includes references to Apache ZooKeeper hosts (i.e., the ZooKeeper ensemble) and namespaces. It’s important to understand the relationship of that ensemble configuration to the topologies referencing it. These ZooKeeper details are often cluster-specific. If the ZooKeeper ensemble in the provider configuration is part of cluster <em>A</em>, then it’s probably incorrect to reference it in a topology for cluster <em>B</em> since the Hadoop service endpoints will probably be the wrong ones. However, if multiple clusters are working with a common ZooKeeper ensemble, then sharing this provider configuration <em>may</em> be appropriate.</p><p><em>It’s always best to specify cluster-specific details in a descriptor rather than a provider configuration.</em></p><p
>All of the service attributes, which can be specified in the HaProvider, can also be specified as params in the corresponding service declaration in the descriptor. If an attribute is specified in both the service declaration and the HaProvider, then the service-level value <strong>overrides</strong> the HaProvider-level value.</p>
+<pre><code>"services": [
+ {
+ "name": "HIVE",
+ "params": {
+ "enabled": "true",
+ "zookeeperEnsemble": "host1:2181,host2:2181,host3:2181",
+ "zookeeperNamespace" : "hiveserver2",
+ "maxRetryAttempts" : "100"
+ }
+ }
+]
+</code></pre><p>Note that Knox can dynamically determine these ZooKeeper ensemble details for <em>some</em> services; for others, they are static provider configuration details. The services for which Knox can discover the cluster-specific ZooKeeper details include:</p>
+<ul>
+ <li>YARN</li>
+ <li>HIVE</li>
+ <li>WEBHDFS</li>
+ <li>WEBHBASE</li>
+ <li>WEBHCAT</li>
+ <li>OOZIE</li>
+ <li>ATLAS</li>
+ <li>ATLAS-API</li>
+ <li>KAFKA</li>
+</ul><p>For a subset of these supported services, Knox can also determine whether ZooKeeper-based HA is enabled or not. This means that the <em>enabled</em> attribute of the HA Provider configuration for these services may be set to <strong>auto</strong>, and Knox will determine whether or not it is enabled based on that service’s configuration in the target cluster.</p>
+<pre><code>{
+ "providers": [
+ {
+ "role": "ha",
+ "name": "HaProvider",
+ "enabled": "true",
+ "params": {
+ "WEBHDFS": "maxFailoverAttempts=3;failoverSleep=1000;maxRetryAttempts=3;retrySleep=1000;enabled=true",
+ "HIVE": "maxFailoverAttempts=10;failoverSleep=1000;maxRetryAttempts=5;retrySleep=1000;enabled=auto",
+ "YARN": "maxFailoverAttempts=5;failoverSleep=5000;maxRetryAttempts=3;retrySleep=1000;enabled=auto"
+ }
+ }
+ ]
+}
+</code></pre><p>These services include:</p>
+<ul>
+ <li>YARN</li>
+ <li>HIVE</li>
+ <li>ATLAS</li>
+ <li>ATLAS-API</li>
+</ul><p>Be sure to pay extra attention when sharing HA Provider configuration across topologies.</p><h5><a id="Simplified+Descriptor+Files">Simplified Descriptor Files</a> <a href="#Simplified+Descriptor+Files"><img src="markbook-section-link.png"/></a></h5><p>Simplified descriptors allow service URLs to be defined explicitly, just like full topology descriptors. However, if URLs are omitted for a service, Knox will attempt to discover that service’s URLs from the Hadoop cluster. Currently, this behavior is only supported for clusters managed by Ambari. In any case, the simplified descriptors are much more concise than a full topology descriptor.</p><p><em>Descriptor Properties</em></p>
<table>
<thead>
<tr>
Modified: knox/site/index.html
URL: http://svn.apache.org/viewvc/knox/site/index.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/index.html (original)
+++ knox/site/index.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Announcing Apache Knox 1.0.0!</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/site/issue-tracking.html
URL: http://svn.apache.org/viewvc/knox/site/issue-tracking.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/issue-tracking.html (original)
+++ knox/site/issue-tracking.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Issue Tracking</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/site/license.html
URL: http://svn.apache.org/viewvc/knox/site/license.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/license.html (original)
+++ knox/site/license.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Project License</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/site/mail-lists.html
URL: http://svn.apache.org/viewvc/knox/site/mail-lists.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/mail-lists.html (original)
+++ knox/site/mail-lists.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Project Mailing Lists</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/site/project-info.html
URL: http://svn.apache.org/viewvc/knox/site/project-info.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/project-info.html (original)
+++ knox/site/project-info.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Project Information</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/site/team-list.html
URL: http://svn.apache.org/viewvc/knox/site/team-list.html?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/site/team-list.html (original)
+++ knox/site/team-list.html Tue Jul 10 16:01:40 2018
@@ -1,13 +1,13 @@
<!DOCTYPE html>
<!--
- | Generated by Apache Maven Doxia at 2018-07-06
+ | Generated by Apache Maven Doxia at 2018-07-10
| Rendered using Apache Maven Fluido Skin 1.3.0
-->
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
- <meta name="Date-Revision-yyyymmdd" content="20180706" />
+ <meta name="Date-Revision-yyyymmdd" content="20180710" />
<meta http-equiv="Content-Language" content="en" />
<title>Knox Gateway – Team list</title>
<link rel="stylesheet" href="./css/apache-maven-fluido-1.3.0.min.css" />
@@ -58,7 +58,7 @@
- <li id="publishDate" class="pull-right">Last Published: 2018-07-06</li>
+ <li id="publishDate" class="pull-right">Last Published: 2018-07-10</li>
</ul>
</div>
Modified: knox/trunk/books/1.1.0/config.md
URL: http://svn.apache.org/viewvc/knox/trunk/books/1.1.0/config.md?rev=1835573&r1=1835572&r2=1835573&view=diff
==============================================================================
--- knox/trunk/books/1.1.0/config.md (original)
+++ knox/trunk/books/1.1.0/config.md Tue Jul 10 16:01:40 2018
@@ -377,63 +377,40 @@ from the simple descriptors, a single co
of configuration, and the need to update multiple configuration files when a policy change is required. Updating a provider
configuration will trigger an update to all those topologies that reference it.
-The contents of externalized provider configuration is identical to the gateway element from a full topology descriptor. The only
-difference is that it's defined in its own XML file in `{GATEWAY_HOME}/conf/shared-providers/`
+The contents of externalized provider configuration details are identical to the contents of the gateway element from a full topology descriptor.
+The only difference is that those details are defined in a separate JSON/YAML file in `{GATEWAY_HOME}/conf/shared-providers/`, which is then
+referenced by one or more descriptors.
*Provider Configuration Example*
- <gateway>
- <provider>
- <role>authentication</role>
- <name>ShiroProvider</name>
- <enabled>true</enabled>
- <param>
- <name>sessionTimeout</name>
- <value>30</value>
- </param>
- <param>
- <name>main.ldapRealm</name>
- <value>org.apache.knox.gateway.shirorealm.KnoxLdapRealm</value>
- </param>
- <param>
- <name>main.ldapContextFactory</name>
- <value>org.apache.knox.gateway.shirorealm.KnoxLdapContextFactory</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory</name>
- <value>$ldapContextFactory</value>
- </param>
- <param>
- <name>main.ldapRealm.userDnTemplate</name>
- <value>uid={0},ou=people,dc=hadoop,dc=apache,dc=org</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory.url</name>
- <value>ldap://localhost:33389</value>
- </param>
- <param>
- <name>main.ldapRealm.contextFactory.authenticationMechanism</name>
- <value>simple</value>
- </param>
- <param>
- <name>urls./**</name>
- <value>authcBasic</value>
- </param>
- </provider>
-
- <provider>
- <role>identity-assertion</role>
- <name>Default</name>
- <enabled>true</enabled>
- </provider>
-
- <provider>
- <role>hostmap</role>
- <name>static</name>
- <enabled>true</enabled>
- <param><name>localhost</name><value>sandbox,sandbox.hortonworks.com</value></param>
- </provider>
- </gateway>
+ {
+ "providers": [
+ {
+ "role": "authentication",
+ "name": "ShiroProvider",
+ "enabled": "true",
+ "params": {
+ "sessionTimeout": "30",
+ "main.ldapRealm": "org.apache.knox.gateway.shirorealm.KnoxLdapRealm",
+ "main.ldapContextFactory": "org.apache.knox.gateway.shirorealm.KnoxLdapContextFactory",
+ "main.ldapRealm.contextFactory": "$ldapContextFactory",
+ "main.ldapRealm.userDnTemplate": "uid={0},ou=people,dc=hadoop,dc=apache,dc=org",
+ "main.ldapRealm.contextFactory.url": "ldap://localhost:33389",
+ "main.ldapRealm.contextFactory.authenticationMechanism": "simple",
+ "urls./**": "authcBasic"
+ }
+ },
+ {
+ "name": "static",
+ "role": "hostmape",
+ "enabled": "true",
+ "params": {
+ "localhost": "sandbox,sandbox.hortonworks.com"
+ }
+ }
+ ]
+ }
+
###### Sharing HA Providers ######
@@ -450,13 +427,65 @@ For a shared provider configuration with
- Otherwise, the URLs must be explicitly specified for that service in the descriptor.
- If the descriptor content is correct, but the cluster service is not configured for HA, then the HA behavior obviously won't work.
-*Apache ZooKeeper-based HA Provider Services*
+__*Apache ZooKeeper-based HA Provider Services*__
+
+The HA Provider configuration for some services (e.g., [HiveServer2](#HiveServer2+HA), [Kafka](#Kafka+HA)) includes references to Apache ZooKeeper hosts (i.e., the ZooKeeper ensemble)
+and namespaces. It's important to understand the relationship of that ensemble configuration to the topologies referencing it. These ZooKeeper details are often cluster-specific. If the ZooKeeper ensemble in the provider configuration is part of cluster *A*, then it's probably incorrect to reference it in a topology for cluster *B* since the Hadoop service endpoints will probably be the wrong ones. However, if multiple clusters are working with a common ZooKeeper ensemble, then sharing this provider configuration *may* be appropriate.
+
+*It's always best to specify cluster-specific details in a descriptor rather than a provider configuration.*
+
+All of the service attributes, which can be specified in the HaProvider, can also be specified as params in the corresponding service declaration in the descriptor. If an attribute is specified in both the service declaration and the HaProvider, then the service-level value __overrides__ the HaProvider-level value.
+
+ "services": [
+ {
+ "name": "HIVE",
+ "params": {
+ "enabled": "true",
+ "zookeeperEnsemble": "host1:2181,host2:2181,host3:2181",
+ "zookeeperNamespace" : "hiveserver2",
+ "maxRetryAttempts" : "100"
+ }
+ }
+ ]
+
+Note that Knox can dynamically determine these ZooKeeper ensemble details for *some* services; for others, they are static provider configuration details.
+The services for which Knox can discover the cluster-specific ZooKeeper details include:
+
+- YARN
+- HIVE
+- WEBHDFS
+- WEBHBASE
+- WEBHCAT
+- OOZIE
+- ATLAS
+- ATLAS-API
+- KAFKA
+
+For a subset of these supported services, Knox can also determine whether ZooKeeper-based HA is enabled or not.
+This means that the *enabled* attribute of the HA Provider configuration for these services may be set to __auto__, and Knox will determine whether or not it is enabled based on that service's configuration in the target cluster.
+
+ {
+ "providers": [
+ {
+ "role": "ha",
+ "name": "HaProvider",
+ "enabled": "true",
+ "params": {
+ "WEBHDFS": "maxFailoverAttempts=3;failoverSleep=1000;maxRetryAttempts=3;retrySleep=1000;enabled=true",
+ "HIVE": "maxFailoverAttempts=10;failoverSleep=1000;maxRetryAttempts=5;retrySleep=1000;enabled=auto",
+ "YARN": "maxFailoverAttempts=5;failoverSleep=5000;maxRetryAttempts=3;retrySleep=1000;enabled=auto"
+ }
+ }
+ ]
+ }
+
+These services include:
+
+- YARN
+- HIVE
+- ATLAS
+- ATLAS-API
-The HA Provider configuration for some services (e.g., [HiveServer2](#HiveServer2+HA), [Kafka](#Kafka+HA)) includes references to Apache ZooKeeper hosts (i.e., the ZooKeeper ensemble).
-It's important to understand the relationship of that ensemble configuration to the topologies referencing it. These ZooKeeper ensembles are often cluster-specific. If the ZooKeeper
-ensemble in the provider configuration is part of cluster A, then it's probably incorrect to reference it in a topology for cluster B since the Hadoop service endpoints will probably
-be the wrong ones. However, if multiple clusters are working with a common ZooKeeper ensemble, then sharing this provider configuration *may* be appropriate. Note that service endpoint
-discovery does *not* handle these ZooKeeper ensemble details; they are static provider configuration.
Be sure to pay extra attention when sharing HA Provider configuration across topologies.