Merge pull request #10609 from jmcshane:openshift-docs

* pr/10609:
  Update docs for OpenShift
pull/10609/merge
Stephane Nicoll 7 years ago
commit 70ead0135b

@ -226,65 +226,16 @@ Your application should now be up and running on Heroku.
[[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 application in pretty much any way you like as long as the
Java runtime is available (which is a standard feature you can ask for 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_hooks`:
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.
+
[indent=0]
----
#!/bin/bash
cd $OPENSHIFT_REPO_DIR
mvn package -s .openshift/settings.xml -DskipTests=true
----
+
3. Add a `start` hook that calls `java -jar ...`
+
[indent=0]
----
#!/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.
+
[indent=0]
----
#!/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 $PID
fi
----
+
5. Embed service bindings from environment variables provided by the platform
in your `application.properties`, e.g.
+
[indent=0]
----
spring.datasource.url: jdbc:mysql://${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}
----
https://www.openshift.com/[OpenShift] is the Red Hat public (and enterprise) extension of the
Kubernetes container orchestration platform. Just as in Kubernetes, OpenShift has many
options for installing Spring Boot based applications.
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.
OpenShift has many resources describing how to deploy Spring Boot applications, which include :
* https://blog.openshift.com/using-openshift-enterprise-grade-spring-boot-deployments/[Using the S2I builder]
* https://access.redhat.com/documentation/en-us/reference_architectures/2017/html-single/spring_boot_microservices_on_red_hat_openshift_container_platform_3/[Architecture guide]
* https://blog.openshift.com/using-spring-boot-on-openshift/[Running as traditional web application on Wildfly]
* https://blog.openshift.com/openshift-commons-briefing-96-cloud-native-applications-spring-rhoar/[OpenShift Commons Briefing]
[[cloud-deployment-aws]]

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