[[_jetty9_adapter]]
==== Jetty 9.4 adapter

Keycloak has a separate adapter for Jetty 9.4 that you will have to install into your Jetty installation.
You then have to provide some extra configuration in each WAR you deploy to Jetty.

[[_jetty9_adapter_installation]]
===== Installing the adapter

Adapters are no longer included with the appliance or war distribution. Each adapter is a separate download on the Keycloak downloads site. They are also available as a maven artifact.

.Procedure
.  Download the {project_name} Jetty 9.4 adapter ZIP archive from the link:https://www.keycloak.org/downloads[Keycloak Downloads] site.

. Unzip the Jetty 9.4 distro into Jetty 9.4's link:https://www.eclipse.org/jetty/documentation/jetty-9/index.html[base directory]. In the example below, the Jetty base is named `your-base`:
+
[source, subs="attributes"]
----
$ cd your-base
$ unzip keycloak-jetty94-adapter-dist-{project_version}.Final.zip
----

. Enable the `keycloak` module for your Jetty base:
+
[source]
----
$ java -jar $JETTY_HOME/start.jar --add-to-startd=keycloak
----
+
====
[NOTE]
Including the adapter's jars within your WEB-INF/lib directory will not work.
====

[[_jetty9_per_war]]
===== Jetty 9 Securing a WAR

Use this procedure to secure a WAR directly by adding config and editing files within your WAR package.

.Procedure

. Create a `WEB-INF/jetty-web.xml` file in your WAR package. This is a Jetty specific config fil. You define a Keycloak specific authenticator within it.
+
[source]
----
<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
    <Get name="securityHandler">
        <Set name="authenticator">
            <New class="org.keycloak.adapters.jetty.KeycloakJettyAuthenticator">
            </New>
        </Set>
    </Get>
</Configure>
----

. Create a `keycloak.json` adapter config file within the `WEB-INF` directory of your WAR.
+
The format of this config file is described in the <<_java_adapter_config,Java adapter configuration>>            section.
+
WARNING: The Jetty 9.4 adapter will not be able to find the `keycloak.json` file.
You will have to define all adapter settings within the `jetty-web.xml` file as described below.
Instead of using keycloak.json, you can define everything within the `jetty-web.xml`.
You'll just have to figure out how the json settings match to the `org.keycloak.representations.adapters.config.AdapterConfig` class.
+
[source,subs="attributes+"]
----
<?xml version="1.0"?>
<!DOCTYPE Configure PUBLIC "-//Mort Bay Consulting//DTD Configure//EN" "http://www.eclipse.org/jetty/configure_9_0.dtd">
<Configure class="org.eclipse.jetty.webapp.WebAppContext">
  <Get name="securityHandler">
    <Set name="authenticator">
        <New class="org.keycloak.adapters.jetty.KeycloakJettyAuthenticator">
            <Set name="adapterConfig">
                <New class="org.keycloak.representations.adapters.config.AdapterConfig">
                    <Set name="realm">tomcat</Set>
                    <Set name="resource">customer-portal</Set>
                    <Set name="authServerUrl">http://localhost:8081{kc_base_path}</Set>
                    <Set name="sslRequired">external</Set>
                    <Set name="credentials">
                        <Map>
                            <Entry>
                                <Item>secret</Item>
                                <Item>password</Item>
                            </Entry>
                        </Map>
                    </Set>
                </New>
            </Set>
        </New>
    </Set>
  </Get>
</Configure>
----


. Create the jetty-web.xml file in your webapps directory with the name of yourwar.xml.
Jetty should pick it up. You do not need to open your WAR to secure it with {project_name}.
In this mode, you declare keycloak.json configuration directly within the xml file.

. Specify both a `login-config` and use standard servlet security to specify role-base constraints on your URLs. Here's an example:
+
[source,xml]
----
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
      version="3.0">

	<module-name>customer-portal</module-name>

    <security-constraint>
        <web-resource-collection>
            <web-resource-name>Customers</web-resource-name>
            <url-pattern>/*</url-pattern>
        </web-resource-collection>
        <auth-constraint>
            <role-name>user</role-name>
        </auth-constraint>
        <user-data-constraint>
            <transport-guarantee>CONFIDENTIAL</transport-guarantee>
        </user-data-constraint>
    </security-constraint>

    <login-config>
        <auth-method>BASIC</auth-method>
        <realm-name>this is ignored currently</realm-name>
    </login-config>

    <security-role>
        <role-name>admin</role-name>
    </security-role>
    <security-role>
        <role-name>user</role-name>
    </security-role>
</web-app>
----