![]() An image stream for our newly created container image.To deploy to OpenShift, we need to have the following few constructs: I have my own cluster setup you could choose to use Red Hat Container Development Kit (CDK)/minishift, Red Hat OpenShift Online, or your own cluster. For that, we need the oc client libraries. Now that we have an image, we would also like to deploy it to OpenShift and test our app. More details on Podman can be found in Containers without daemons: Podman and Buildah available in RHEL 7.6 and RHEL 8 Beta and Podman and Buildah for Docker users. $ podman run -d -t -p 8080:8080 -i quay.io/sshaaf/rhel7-jre8-mpdemo:latest Podman is also part of the extras channel and the following command should run the container. And Podman doesn’t require a daemon to run containers and pods. Now we can also run the container with Podman, which complements Buildah and Skopeo by offering an experience similar to the Docker command line: allowing users to run standalone (non-orchestrated) containers. The resulting images are OCI-compliant, so they will work on any runtimes that meet the OCI Runtime Specification (such as Docker and CRI-O). We can also use the buildah command, which helps to create container images from a working container, from a Dockerfile or from scratch. $ docker run -d -t -p 8080:8080 -i quay.io/sshaaf/rhel7-jre8-mpdemo:latest Running the image with docker and pointing localhost:8080 to the container port 8080: $ docker build -t quay.io/sshaaf/rhel7-jre8-mpdemo:latest. # subscription-manager repos -enable rhel-7-server-extras-rpms Build and run images locally You can enable the extras repo like this: Both of them should be in rhel7-server-extras-rpms. If you are running RHEL like I am, you can choose any of the two binaries to deploy from. ![]() The above Dockerfile is built on RHEL, which means I do not need to register with subscription-manager, since the host already has the subscriptions attached.īelow you will find two ways to build this. One important point to note is that the OpenJDK Java runtime is packaged as "java-1.8.0-openjdk" this does not include the compiler and other development libraries which are in the -devel package. Now that we have the Dockerfile details, let's go ahead and build the image. # Setting up permissions for the script to run # Copy the script from the source run-java.sh has specific parameters to run a Thorntail app from the command line in a container. # Set the JAVA_HOME variable to make it clear where Java is located RUN microdnf -enablerepo=rhel-7-server-rpms \ # The official Red Hat registry and the base imageįROM /rhel7-minimal The source code of this file can also be found here on GitHub. Here is the Dockerfile with comments on each layer. Let’s copy the target/demo-thorntail.jar to the temp directory. Now we should have a built demo app with a fat jar that we can call to run Thorntail. On my Red Hat Enterprise Linux (RHEL) machine, I first create a temp directory, for example, demoapp, and unarchive the downloaded artifacts into it. Head out to Microprofile.io and get the package for MicroProfile with Thorntail V2.Ĭlick the Download button to get the archive file. Recently Microprofile.io launched the MicroProfile Starter beta, which helps you get started with MicroProfile by creating a downloadable package. To use our images and see how they work, we'll use a web app as part of our bundle. This article was written for both OpenShift 3.11 and 4.0 beta. Finally, we will run our app by importing a stream into OpenShift.We will run that image with Docker as well as Podman on localhost. ![]()
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