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proxy docs

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Bill Burke 2014-11-24 19:16:20 -05:00
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docbook/reference/en/en-US/master.xml
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@ -39,6 +39,7 @@
<!ENTITY Clustering SYSTEM "modules/clustering.xml">
<!ENTITY ApplicationClustering SYSTEM "modules/application-clustering.xml">
<!ENTITY MultiTenancy SYSTEM "modules/multi-tenancy.xml">
<!ENTITY Proxy SYSTEM "modules/proxy.xml">
]>
<book>
@ -135,6 +136,7 @@ This one is short
&SecurityVulnerabilities;
&Clustering;
&ApplicationClustering;
&Proxy;
&Migration;
</book>

277
docbook/reference/en/en-US/modules/proxy.xml Executable file
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@ -0,0 +1,277 @@
<chapter id="proxy">
<title>Keycloak Security Proxy</title>
<para>
Keycloak has an HTTP(S) proxy that you can put in front of web applications and services where it is not possible
to install the keycloak adapter. You can set up URL filters so that certain URLs are secured either by browser login
and/or bearer token authentication. You can also define role constraints for URL patterns within your applications.
</para>
<section>
<title>Proxy Install and Run</title>
<para>Download the keycloak proxy distribution from the Keycloak download pages and unzip it.
<programlisting>
$ unzip keycloak-proxy-dist.zip
</programlisting>
</para>
<para>
To run it you must have a proxy config file (which we'll discuss in a moment).
<programlisting>
$ java -jar bin/launcher.jar [your-config.json]
</programlisting>
</para>
<para>
If you do not specify a path to the proxy config file, the launcher will look in the current working directory
for the file named <literal>proxy.json</literal>
</para>
</section>
<section>
<title>Proxy Configuration</title>
<para>
Here's an example configuration file.
<programlisting><![CDATA[
{
"target-url": "http://localhost:8082",
"bind-address": "localhost",
"http-port": "8080",
"https-port": "8443",
"keystore": "classpath:ssl.jks",
"keystore-password": "password",
"key-password": "password",
"applications": [
{
"base-path": "/customer-portal",
"error-page": "/error.html",
"adapter-config": {
"realm": "demo",
"resource": "customer-portal",
"realm-public-key": "MIGfMA0GCSqGSIb",
"auth-server-url": "http://localhost:8081/auth",
"ssl-required" : "external",
"principal-attribute": "name",
"credentials": {
"secret": "password"
}
}
,
"constraints": [
{
"pattern": "/users/*",
"roles-allowed": [
"user"
]
},
{
"pattern": "/admins/*",
"roles-allowed": [
"admin"
]
},
{
"pattern": "/users/permit",
"permit": true
},
{
"pattern": "/users/deny",
"deny": true
}
]
}
]
}]]>
</programlisting>
</para>
<section>
<title>Basic Config</title>
<para>
The basic configuration options for the server are as follows:
<variablelist>
<varlistentry>
<term>target-url</term>
<listitem>
<para>
The URL this server is proxying <emphasis>REQUIRED.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>bind-address</term>
<listitem>
<para>
DNS name or IP address to bind the proxy server's sockets to.
<emphasis>OPTIONAL.</emphasis>. The default value is <emphasis>localhost</emphasis>
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>http-port</term>
<listitem>
<para>
Port to listen for HTTP requests. If you do not specify this value, then the proxy will
not listen for regular HTTP requests.
<emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>https-port</term>
<listitem>
<para>
Port to listen for HTTPS requests. If you do not specify this value, then the proxy will
not listen for HTTPS requests.
<emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>keystore</term>
<listitem>
<para>
Path to a Java keystore file that contains private key and certificate for the server to be
able to handle HTTPS requests. Can be a file path, or, if you prefix it with <literal>classpath:</literal>
it will look for this file in the classpath.
<emphasis>OPTIONAL.</emphasis>. If you have enabled HTTPS, but have not defined a keystore, the proxy
will auto-generate a self-signed certificate and use that.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>buffer-size</term>
<listitem>
<para>
HTTP server socket buffer size. Usually the default is good enough. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>buffers-per-region</term>
<listitem>
<para>
HTTP server socket buffers per region. Usually the default is good enough. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>io-threads</term>
<listitem>
<para>
Number of threads to handle IO. Usually default is good enough. <emphasis>OPTIONAL.</emphasis>.
The default is the number of available processors * 2.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>worker-threads</term>
<listitem>
<para>
Number of threads to handle requests. Usually the default is good enough. <emphasis>OPTIONAL.</emphasis>.
The default is the number of available processors * 16.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</section>
<section>
<title>Application Config</title>
<para>
Next under the <literal>applications</literal> array attribute, you can define one or more applications per host you are proxying.
<variablelist>
<varlistentry>
<term>base-path</term>
<listitem>
<para>
The base context root for the application. Must start with '/' <emphasis>REQUIRED.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>error-page</term>
<listitem>
<para>
If the proxy has an error, it will display the target application's error page relative URL <emphasis>OPTIONAL.</emphasis>.
This is a relative path to the base-path. In the example above it would be <literal>/customer-portal/error.html</literal>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>adapter-config</term>
<listitem>
<para>
<emphasis>REQUIRED.</emphasis>. Same configuration as any other keycloak adapter. See <link linkend='adapter-config'>Adapter Config</link>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
<section>
<title>Constraint Config</title>
<para>
Next under each application you can define one or more constraints in the <literal>constraints</literal> array attribute.
A constraint defines a URL pattern relative to the base-path. You can deny, permit, or require authentication for
a specific URL pattern. You can specify roles allowed for that path as well. More specific constraints will take
precedence over more general ones.
<variablelist>
<varlistentry>
<term>pattern</term>
<listitem>
<para>
URL pattern to match relative to the base-path of the application. Must start with '/' <emphasis>REQUIRED.</emphasis>.
You may only have one wildcard and it must come at the end of the pattern. Valid <literal>/foo/bar/*</literal> and <literal>/foo/*.txt</literal>
Not valid: <literal>/*/foo/*</literal>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>roles-allowed</term>
<listitem>
<para>
Array of strings of roles allowed to access this url pattern. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>methods</term>
<listitem>
<para>
Array of strings of HTTP methods that will exclusively match this pattern and HTTP request. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>excluded-methods</term>
<listitem>
<para>
Array of strings of HTTP methods that will be ignored when match this pattern. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>deny</term>
<listitem>
<para>
Deny all access to this URL pattern. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>permit</term>
<listitem>
<para>
Permit all access without requiring authentication or a role mapping. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term>authenticate</term>
<listitem>
<para>
Require authentication for this pattern, but no role mapping. <emphasis>OPTIONAL.</emphasis>.
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
</section>
</section>
</section>
</chapter>