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authorLuke Granger-Brown <git@lukegb.com>2020-07-05T13·05+0000
committerLuke Granger-Brown <git@lukegb.com>2020-07-05T13·05+0000
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+CAS Overlay Template [![Build Status](https://travis-ci.org/apereo/cas-overlay-template.svg?branch=master)](https://travis-ci.org/apereo/cas-overlay-template)
+=======================
+
+Generic CAS WAR overlay to exercise the latest versions of CAS. This overlay could be freely used as a starting template for local CAS war overlays.
+
+# Versions
+
+- CAS `6.2.x`
+- JDK `11`
+
+# Overview
+
+To build the project, use:
+
+```bash
+# Use --refresh-dependencies to force-update SNAPSHOT versions
+./gradlew[.bat] clean build
+```
+
+To see what commands are available to the build script, run:
+
+```bash
+./gradlew[.bat] tasks
+```
+
+To launch into the CAS command-line shell:
+
+```bash
+./gradlew[.bat] downloadShell runShell
+```
+
+To fetch and overlay a CAS resource or view, use:
+
+```bash
+./gradlew[.bat] getResource -PresourceName=[resource-name]
+```
+
+To list all available CAS views and templates:
+
+```bash
+./gradlew[.bat] listTemplateViews
+```
+
+To unzip and explode the CAS web application file and the internal resources jar:
+
+```bash
+./gradlew[.bat] explodeWar
+```
+
+# Configuration
+
+- The `etc` directory contains the configuration files and directories that need to be copied to `/etc/cas/config`.
+
+```bash
+./gradlew[.bat] copyCasConfiguration
+```
+
+- The specifics of the build are controlled using the `gradle.properties` file.
+
+## Adding Modules
+
+CAS modules may be specified under the `dependencies` block of the [Gradle build script](build.gradle):
+
+```gradle
+dependencies {
+    compile "org.apereo.cas:cas-server-some-module:${project.casVersion}"
+    ...
+}
+```
+
+To collect the list of all project modules and dependencies:
+
+```bash
+./gradlew[.bat] allDependencies
+```
+
+### Clear Gradle Cache
+
+If you need to, on Linux/Unix systems, you can delete all the existing artifacts (artifacts and metadata) Gradle has downloaded using:
+
+```bash
+# Only do this when absolutely necessary
+rm -rf $HOME/.gradle/caches/
+```
+
+Same strategy applies to Windows too, provided you switch `$HOME` to its equivalent in the above command.
+
+# Deployment
+
+- Create a keystore file `thekeystore` under `/etc/cas`. Use the password `changeit` for both the keystore and the key/certificate entries. This can either be done using the JDK's `keytool` utility or via the following command:
+
+```bash
+./gradlew[.bat] createKeystore
+```
+
+- Ensure the keystore is loaded up with keys and certificates of the server.
+
+On a successful deployment via the following methods, CAS will be available at:
+
+* `https://cas.server.name:8443/cas`
+
+## Executable WAR
+
+Run the CAS web application as an executable WAR:
+
+```bash
+./gradlew[.bat] run
+```
+
+Debug the CAS web application as an executable WAR:
+
+```bash
+./gradlew[.bat] debug
+```
+
+Run the CAS web application as a *standalone* executable WAR:
+
+```bash
+./gradlew[.bat] clean executable
+```
+
+## External
+
+Deploy the binary web application file `cas.war` after a successful build to a servlet container of choice.
+
+## Docker
+
+The following strategies outline how to build and deploy CAS Docker images.
+
+### Jib
+
+The overlay embraces the [Jib Gradle Plugin](https://github.com/GoogleContainerTools/jib) to provide easy-to-use out-of-the-box tooling for building CAS docker images. Jib is an open-source Java containerizer from Google that lets Java developers build containers using the tools they know. It is a container image builder that handles all the steps of packaging your application into a container image. It does not require you to write a Dockerfile or have Docker installed, and it is directly integrated into the overlay.
+
+```bash
+./gradlew build jibDockerBuild
+```
+
+### Dockerfile
+
+You can also use the native Docker tooling and the provided `Dockerfile` to build and run CAS.
+
+```bash
+chmod +x *.sh
+./docker-build.sh
+./docker-run.sh
+```