README.md

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# README for Apache Fortress Realm
 * Version 2.0.3

-------------------------------------------------------------------------------
## Table of Contents

 * Document Overview
 * Tips for first-time users.
 * SECTION 1. Prerequisites.
 * SECTION 2. Download & Install.
 * SECTION 3. Instructions for Application Usage

___________________________________________________________________________________
## Document Overview

This document contains instructions to download and install the Apache Fortress Realm.  SECTION 3 contains steps to get it working with Apache Tomcat.

___________________________________________________________________________________
##  Tips for first-time users

 * To use with ApacheDS: **README-QUICKSTART-APACHEDS.md** in **FORTRESS_CORE_HOME** package
 * To use OpenLDAP: **README-QUICKSTART-SLAPD.md** in **FORTRESS_CORE_HOME** package.
 * Tutorial to integrate a Java Web app with Fortress RBAC apis: [README-ENABLE-FORTRESS](https://github.com/shawnmckinney/wicket-sample/blob/master/README-ENABLE-FORTRESS.md).
 * Questions about this software package should be directed to its mailing list:
   * http://mail-archives.apache.org/mod_mbox/directory-fortress/

-------------------------------------------------------------------------------
## SECTION 1. Prerequisites

Minimum hardware requirements:
 * 2 Cores
 * 4GB RAM

Minimum software requirements:
 * Java SDK 8
 * git
 * Apache Maven3++
 * Apache Fortress Core **Download & Install** in **FORTRESS_CORE_HOME** package **README.md**.

Everything else covered in steps that follow.  Tested on Debian, Centos & Windows machines.

-------------------------------------------------------------------------------
## SECTION 2. Download & Install

1. Download the source.

 a. from git:
 ```
 git clone --branch 2.0.3 https://gitbox.apache.org/repos/asf/directory-fortress-realm.git
 cd directory-fortress-realm
 ```

 b. or download package:

 ```
 wget http://www.apache.org/dist/directory/fortress/dist/2.0.3/fortress-realm-2.0.3-source-release.zip
 unzip fortress-realm-2.0.3-source-release.zip
 cd fortress-realm-2.0.3
 ```

2. Build the source

a. Java 8 target

 ```
 mvn clean install
 ```

b. Java 11 target

 ```
 mvn clean install -Djava.version=11
 ```

3. Now build the javadoc:

 ```
 mvn javadoc:javadoc
 ```

 If using java 8, add this param to the pom.xml:
 ```
 <plugin>
    ...
    <artifactId>maven-javadoc-plugin</artifactId>
    <configuration>
        <additionalparam>-Xdoclint:none</additionalparam>
        ...
    </configuration>
 </plugin>
 ```

4. View the generated document here: [./target/site/apidocs/overview-summary.html](./target/site/apidocs/overview-summary.html).

-------------------------------------------------------------------------------
## SECTION 3. Instructions for Application Usage

 There are two options for web app usage of the fortress realm:

 * **Option 1** requires web apps to be dependent on the fortress realm libs but enables usage of the fortress RBAC programmatic authZ apis.
 It allows multiple realms, each of a different type and version, to be enabled within a single Tomcat instance.

 * **Option 2** frees the web app from entanglement with fortress libs, which is easier to manage, but doesn't allow fortress api usage.  It limits to a single realm instance,
  enabled globally, which might not agree with multitenant requirements.

### Table of Options

|Realm Type|Is Global Security?|Is Declarative?|Is RBAC APIs?|Multiple Realms Supported?|Fortress Dependencies?|
|:--------:|:-----------------:|:-------------:|:-----------:|:------------------------:|:--------------------:|
| Option 1 |       No          |      Yes      |     Yes     |          Yes             |         Yes          |
| Option 2 |       Yes         |      Yes      |     No      |          No              |         No           |

### Option 1. For Single Web Context
 *enable Java EE security for a single web app running under Tomcat*
 * Follow these instructions: [REALM-CONTEXT-SETUP](./REALM-CONTEXT-SETUP.md).

 ![Apache Fortress Realm System Architecture](images/fortress-realm-system-arch.png "Apache Fortress Realm System Architecture")

-------------------------------------------------------------------------------

### Option 2. For Global Security
 *enable Java EE security for all web apps running under Tomcat*
 * Follow these instructions: [REALM-HOST-SETUP](./REALM-HOST-SETUP.md).

  ![Apache Fortress Realm Host System Architecture](images/fortress-realm-host-system-arch.png "Apache Fortress Realm Host System Architecture")

___________________________________________________________________________________
#### END OF README