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@ -226,65 +226,16 @@ Your application should now be up and running on Heroku.
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[[cloud-deployment-openshift]]
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=== OpenShift
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https://www.openshift.com/[OpenShift] is the RedHat public (and enterprise) PaaS solution.
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Like Heroku, it works by running scripts triggered by git commits, so you can script
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the launching of a Spring Boot application in pretty much any way you like as long as the
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Java runtime is available (which is a standard feature you can ask for at OpenShift).
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To do this you can use the
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https://www.openshift.com/developers/do-it-yourself[DIY Cartridge] and hooks in your
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repository under `.openshift/action_hooks`:
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The basic model is to:
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1. Ensure Java and your build tool are installed remotely, e.g. using a `pre_build` hook
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(Java and Maven are installed by default, Gradle is not)
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2. Use a `build` hook to build your jar (using Maven or Gradle), e.g.
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+
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[indent=0]
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----
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#!/bin/bash
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cd $OPENSHIFT_REPO_DIR
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mvn package -s .openshift/settings.xml -DskipTests=true
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----
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+
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3. Add a `start` hook that calls `java -jar ...`
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+
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[indent=0]
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----
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#!/bin/bash
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cd $OPENSHIFT_REPO_DIR
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nohup java -jar target/*.jar --server.port=${OPENSHIFT_DIY_PORT} --server.address=${OPENSHIFT_DIY_IP} &
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----
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+
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4. Use a `stop` hook (since the start is supposed to return cleanly), e.g.
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+
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[indent=0]
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----
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#!/bin/bash
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source $OPENSHIFT_CARTRIDGE_SDK_BASH
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PID=$(ps -ef | grep java.*\.jar | grep -v grep | awk '{ print $2 }')
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if [ -z "$PID" ]
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then
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client_result "Application is already stopped"
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else
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kill $PID
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fi
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----
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+
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5. Embed service bindings from environment variables provided by the platform
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in your `application.properties`, e.g.
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+
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[indent=0]
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----
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spring.datasource.url: jdbc:mysql://${OPENSHIFT_MYSQL_DB_HOST}:${OPENSHIFT_MYSQL_DB_PORT}/${OPENSHIFT_APP_NAME}
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spring.datasource.username: ${OPENSHIFT_MYSQL_DB_USERNAME}
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spring.datasource.password: ${OPENSHIFT_MYSQL_DB_PASSWORD}
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----
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https://www.openshift.com/[OpenShift] is the Red Hat public (and enterprise) extension of the
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Kubernetes container orchestration platform. Just as in Kubernetes, OpenShift has many
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options for installing Spring Boot based applications.
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There's a blog on https://www.openshift.com/blogs/run-gradle-builds-on-openshift[running
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Gradle in OpenShift] on their website that will get you started with a gradle build to
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run the app.
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OpenShift has many resources describing how to deploy Spring Boot applications, which include :
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* https://blog.openshift.com/using-openshift-enterprise-grade-spring-boot-deployments/[Using the S2I builder]
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* https://access.redhat.com/documentation/en-us/reference_architectures/2017/html-single/spring_boot_microservices_on_red_hat_openshift_container_platform_3/[Architecture guide]
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* https://blog.openshift.com/using-spring-boot-on-openshift/[Running as traditional web application on Wildfly]
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* https://blog.openshift.com/openshift-commons-briefing-96-cloud-native-applications-spring-rhoar/[OpenShift Commons Briefing]
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[[cloud-deployment-aws]]
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