Oracle GraalVM in OCI DevOps Build Pipelines

This guide describes how to use Oracle GraalVM in the Oracle Cloud Infrastructure (OCI) DevOps service. OCI DevOps is a continuous integration/continuous delivery (CI/CD) service that enables developers to automate the delivery and deployment of software to OCI compute platforms.

Note: Oracle GraalVM license and support are included in the Oracle Cloud Infrastructure subscription at no additional cost.

OCI DevOps service provides build runners with Oracle Linux 7 as the base container image along with a number of runtimes and tools.

Oracle GraalVM RPMs are available in the Oracle YUM repository. Each RPM is self-contained and will automatically pull in all its required dependencies. You can install and use Oracle GraalVM in DevOps Build Pipelines using the YUM package manager.

Prerequisites

To work with a Build Pipeline, add statements to a build specification file, build-spec.yml. The DevOps CI/CD platform reads the file and runs the commands one by one. You do not need to run a YUM package manager command manually.

RPMs for Oracle GraalVM are available with the package names graalvm-17-native-image, graalvm-21-native-image, and graalvm-23-native-image. Each package includes the JDK and the Native Image tool.

To install and use Oracle GraalVM in your DevOps Build Pipeline, update your build specification file as shown in the following example.

  1. Add a command to install Oracle GraalVM for JDK 23 with Native Image and Java Development Kit (JDK): ```yml steps:
    • type: Command name: “Install Oracle GraalVM for JDK 23” command: | yum -y install graalvm-23-native-image ```
  2. Add a command to set the value of the JAVA_HOME environment variable for Oracle GraalVM for JDK 23: 
     env:
 variables:
     "JAVA_HOME" : "/usr/lib64/graalvm/graalvm-java23"
  3. Add the command to set the value of the PATH environment variable: 
     env:
 variables:
     # PATH is a reserved variable and cannot be defined as a variable.
     # PATH can be changed in a build step and the change is visible in subsequent steps.

 steps:
 - type: Command
     name: "Set PATH Variable"
     command: |
     export PATH=$JAVA_HOME/bin:$PATH

Here is an example of a complete build specification file.

Oracle GraalVM provides more features, each of which can be installed as an add-on. Use the yum list command to get a list of the available RPMs for your installation. For instance, for Oracle GraalVM for JDK 23, run:

yum list graalvm-23*
...

To try this feature out, use the sample project: Using Oracle GraalVM in OCI DevOps Build Pipelines. It describes how to set up Oracle GraalVM in OCI DevOps service, create a Build Pipeline, add build stages, and so on.