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Add example for openshift deployment

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Fixes gh-668 (if the asciicdoc compiles)
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Dave Syer 2014-06-03 14:56:27 +01:00
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spring-boot-docs/src/main/asciidoc/cloud-deployment.adoc
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@ -235,6 +235,63 @@ an extensive https://github.com/CloudBees-community/springboot-gradle-cloudbees
that covers the steps that you need to follow when deploying to CloudBees.
[[cloud-deployment-openshift]]
=== Openshift
https://www.openshift.com/[Openshift] is the RedHat public (and enterprise) PaaS solution.
Like Heroku, it works by running scripts triggered by git commits, so you can script
the launching of a Spring Boot app in pretty much any way you like as long as the
Java runtime is available (which is a standard feature you can ask from at Openshift).
To do this you can use the https://www.openshift.com/developers/do-it-yourself[DIY Cartridge]
and hooks in your repository under `.openshift/action_scripts`:
The basic model is to:
1. Ensure Java and your build tool are installed remotely, e.g. using
a `pre_build` hook (Java and Maven are installed by default, Gradle is not)
2. Use a `build` hook to build your jar (using Maven or Gradle), e.g.
----
#!/bin/bash
cd $OPENSHIFT_REPO_DIR
mvn package -s .openshift/settings.xml -DskipTests=true
----
3. Add a `start` hook that calls `java -jar ...`
----
#!/bin/bash
cd $OPENSHIFT_REPO_DIR
nohup java -jar target/*.jar --server.port=${OPENSHIFT_DIY_PORT} --server.address=${OPENSHIFT_DIY_IP} &
----
4. Use a `stop` hook (since the start is supposed to return cleanly), e.g.
----
#!/bin/bash
source $OPENSHIFT_CARTRIDGE_SDK_BASH
PID=$(ps -ef | grep java.*\.jar | grep -v grep | awk '{ print $2 }')
if [ -z "$PID" ]
then
client_result "Application is already stopped"
else
kill $PID
fi
----
5. Embed service bindings from environment variables provided by the platform
in your `application.properties`, e.g.
----
spring.datasource.url: jdbc:mysql://${OPENSHIFT_MYSQL_DB_HOST}:${OPENSHIFT_MYSQL_DB_PORT}/${OPENSHIFT_APP_NAME}
spring.datasource.username: ${OPENSHIFT_MYSQL_DB_USERNAME}
spring.datasource.password: ${OPENSHIFT_MYSQL_DB_PASSWORD}
----
There's a blog on https://www.openshift.com/blogs/run-gradle-builds-on-openshift[running Gradle
in Openshift] on their website that will get you started with a gradle build to run
the app. A http://issues.gradle.org/browse/GRADLE-2871[bug in Gradle] currently prevents you
from using Gradle newer than 1.6.
[[cloud-deployment-whats-next]]
== What to read next