Openshift and AWS Lambda Deployment With Quarkus

Nowadays Quarkus is known as Supersonic Subatomic Java. It provides a lot of features to facilitate build and deployment.

Elina Valieva

Updated Aug. 13, 22 · Tutorial

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Nowadays Quarkus is known as Supersonic Subatomic Java. It provides a lot of features to facilitate build and deployment. I did my best by creating a small blog application with quarkus with installed features: rest-client, security, spring-data-jpa, smallrye-health and openapi, Kubernetes, and AWS deployment to try it real.

There are many things that one can do with the Quarkus system if they are interested in getting the most life out of it that they possibly can. It is important to understand the prerequisites as well as what the system can and cannot do at this time. It is certainly not easy to get everything done with it until you know about that.

Today, we will explore exactly what you need to do to make a difference using your Quarkus system. We will also look at all of the technical specifications that are necessary to get it up and running at this time. That should prove helpful for you as you work on making the most of every coding program that comes your way.

Prerequisites

JDK 11— for running app
Gradle 6+ — for packaging
Docker
OpenShift CLI — for deploying on OpenShift

AWS CLI, AWS SAM CLI— for deploying AWS Lambda

Docker

Quarkus provides extensions for building (and pushing) container images. Currently, it supports Jib, S2I, Docker.

To working with Docker containerization add Gradle dependency:

implementation 'io.quarkus:quarkus-container-image-docker'

Configure the docker image and remote registry in application.properties :

     Dockerfile
    
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quarkus.container-image.name=blog-api
quarkus.container-image.tag=latest
quarkus.container-image.registry=docker.io
quarkus.container-image.username=<USERNAME>
quarkus.container-image.password=<PASSWORD>
quarkus.container-image.push=true

Or override properties on Gradle command:

     Dockerfile
    
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./gradlew quarkusBuild 
           -Dquarkus.container-image.username=<USERNAME> \
           -Dquarkus.container-image.password=<PASSWORD> \
           -Dquarkus.container-image.push=true

As it’s possible to create a multistage Dockerfile to avoid packaging:

     Dockerfile
    
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####
# This Dockerfile.multistage is used in order to build a container that runs the Quarkus application in JVM mode
# docker build -t quarkus-quickstart:jvm -f src/main/docker/Dockerfile.multistage .
# docker run -i --rm -p 8080:8080 quarkus-quickstart:jvm
###
# Build jar with gradle
FROM gradle:jdk11 AS build_image
ENV APP_HOME=/root/dev/myapp/
USER root
RUN mkdir -p $APP_HOME/src/main/java
WORKDIR $APP_HOME
COPY build.gradle gradlew gradlew.bat $APP_HOME
COPY gradle $APP_HOME/gradle
COPY . .
RUN ./gradlew -PawsLambdaEnabled=false quarkusBuild
FROM registry.access.redhat.com/ubi8/ubi-minimal:8.1
ARG JAVA_PACKAGE=java-11-openjdk-headless
ARG RUN_JAVA_VERSION=1.3.5
ENV LANG='en_US.UTF-8' LANGUAGE='en_US:en'
# Install java and the run-java script
# Also set up permissions for user `1001`
RUN microdnf install curl ca-certificates ${JAVA_PACKAGE} \
    && microdnf update \
    && microdnf clean all \
    && mkdir /deployments \
    && chown 1001 /deployments \
    && chmod "g+rwX" /deployments \
    && chown 1001:root /deployments \
    && curl https://repo1.maven.org/maven2/io/fabric8/run-java-sh/${RUN_JAVA_VERSION}/run-java-sh-${RUN_JAVA_VERSION}-sh.sh -o /deployments/run-java.sh \
    && chown 1001 /deployments/run-java.sh \
    && chmod 540 /deployments/run-java.sh \
    && echo "securerandom.source=file:/dev/urandom" >> /etc/alternatives/jre/lib/security/java.security
# Configure the JAVA_OPTIONS, you can add -XshowSettings:vm to also display the heap size.
ENV JAVA_OPTIONS="-Dquarkus.http.host=0.0.0.0 -Djava.util.logging.manager=org.jboss.logmanager.LogManager"
COPY --from=build_image /root/dev/myapp/build/lib/* /deployments/lib/
COPY --from=build_image /root/dev/myapp/build/*-runner.jar /deployments/app.jar
EXPOSE 8090
USER 1001
ENTRYPOINT [ "/deployments/run-java.sh" ]

OpenShift Deployment

To deploy on Openshift without Quarkus possible to define template.yaml:

     YAML
    
 

      
     

       

      

       

      

      

     
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apiVersion: v1
kind: Template
metadata:
  name: my-template
objects:
- kind: DeploymentConfig
  apiVersion: v1
  metadata:
      labels:
        ${TAG}: ${SELECTOR_APP_NAME}
      name: ${APP_NAME}
      namespace: ${NAMESPACE_NAME}
  spec:
      replicas: 1
      revisionHistoryLimit: 10
      selector:
        app: ${APP_NAME}
        deploymentconfig: ${APP_NAME}
      strategy:
        activeDeadlineSeconds: 21600
        resources: {}
        rollingParams:
          intervalSeconds: 1
          maxSurge: 25%
          maxUnavailable: 25%
          timeoutSeconds: 600
          updatePeriodSeconds: 1
        type: Rolling
      template:
        metadata:
          annotations:
            openshift.io/generated-by: OpenShiftNewApp
          creationTimestamp: null
          labels:
            app: ${APP_NAME}
            deploymentconfig: ${APP_NAME}
        spec:
          containers:
            - env:
              name: ${APP_NAME}
              ports:
                - containerPort: 8090
                  protocol: TCP
              resources: {}
          dnsPolicy: ClusterFirst
          restartPolicy: Always
          schedulerName: default-scheduler
          securityContext: {}
          terminationGracePeriodSeconds: 30
      test: false
      triggers:
        - type: ConfigChange
        - imageChangeParams:
            automatic: true
            containerNames:
              - ${APP_NAME}
            from:
              kind: ImageStreamTag
              name: 'blog-api:latest'
              namespace: ${NAMESPACE_NAME}
          type: ImageChange
- kind: Service
  apiVersion: v1
  metadata:
    labels:
        ${TAG}: ${SELECTOR_APP_NAME}
    name: ${APP_NAME}
    namespace: ${NAMESPACE_NAME}
  spec:
    ports:
        - name: 80-tcp
          port: 80
          protocol: TCP
          targetPort: 8090
    selector:
        app: ${APP_NAME}
        deploymentconfig: ${APP_NAME}
  sessionAffinity: None
  type: ClusterIP
  status:
    loadBalancer: {}
- kind: Route
  apiVersion: v1
  metadata:
    labels:
        ${TAG}: ${SELECTOR_APP_NAME}
    name: ${APP_NAME}
    namespace: ${NAMESPACE_NAME}
  spec:
    host: ${HOST_NAME}
    port:
        targetPort: 80-tcp
    to:
        kind: Service
        name: ${APP_NAME}
        weight: 100
    wildcardPolicy: None
parameters:
- name: NAMESPACE_NAME
- name: SELECTOR_APP_NAME
- name: APP_NAME
  value: quarkus-blog-api
- name: HOST_NAME
- name: TAG
  value: app

       

      

And processed:

     Dockerfile
    
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oc tag elvaliev/blog-api:latest
oc process NAMESPACE_NAME=<OPENSHIFT-PROJECT> \
           SELECTOR_APP_NAME=<SELECTOR> \
           HOST_NAME=<APPLICATION_HOST> \
           -f template.yaml | oc apply -f-

By using docker containerization it’s also possible to deploy an application using image-stream from the docker registry.

     Dockerfile
    
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oc new-app elvaliev/blog-api:latest
oc expose svc/blog-api

But, Quarkus offers the ability to automatically generate Kubernetes resources. It currently supports generating resources for Kubernetes, OpenShift, and Knative.

Gradle dependency:

implementation 'io.quarkus:quarkus-kubernetes'

To enable the generation of necessary templates you need to include the target in application.properties:

quarkus.kubernetes.deployment-target=kubernetes,openshift

Optionally you could set up the custom configuration for your template:

     Dockerfile
    
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quarkus.kubernetes.annotations.app=blog
quarkus.kubernetes.labels.app=blog
# To create route for your application
quarkus.openshift.expose=true

After packaging quarkus generate target templates:

Deploy application via command:

oc create -f build/kubernetes/openshift.yml

Also, it’s possible to deploy — using S2I.

     Dockerfile
    
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oc new-app quay.io/quarkus/ubi-quarkus-native-s2i:19.3.1-java11~<GIT REPOSITORY> 
                                         --context-dir=. --name=quarkus-blog-api
              
oc expose svc/quarkus-blog-a

AWS Deployment

Note: use only the last version of quarkus — 1.4.1.

Dependency for Gradle:

implementation 'io.quarkus:quarkus-amazon-lambda-http'

After packaging quarkus generate sam templates for AWS:

For deploying an application as an AWS Lambda use template from the build. For native build use template build/sam.native.yaml.

I followed quarkus-documentation:

     Dockerfile
    
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sam local start-api --template build/sam.jvm.yaml
sam package --template-file build/sam.jvm.yaml --output-template-file packaged.yaml --s3-bucket <S3_BUCKET>
sam deploy --template-file packaged.yaml --capabilities CAPABILITY_IAM --stack-name <YOUR_STACK_NAME>

Note: To avoiding timeout error (502 — BAD GATEWAY) — increase Timeout in build/sam.jvm.yaml

Note: For using Docker containerization you need to exclude quarkus-amazon-lambda-http dependency on jar packaging (packaging with the condition properties awsLambdaEnabled=false from gradle.properties ):

     Dockerfile
    
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if (project.property(“awsLambdaEnabled”) != “true”) { 
   configurations { 
       runtime.exclude group: ‘io.quarkus’, 
                       module: ‘quarkus-amazon-lambda-http’ 
    }
}

Github: https://github.com/ElinaValieva/quarkus-quickstarts

AWS Quarkus AWS Lambda Docker (software) OpenShift

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