Documentazione di Oracle Cloud Infrastructure

Utilizzo di Oracle GraalVM nelle pipeline di build DevOps

DevOps le pipeline di build ti consentono di utilizzare Oracle GraalVM per creare applicazioni Java altamente performanti.

Nella fase Creazione gestita è possibile installare e utilizzare i componenti Oracle GraalVM, ad esempio Native Image e Java Development Kit (JDK), aggiungendo un semplice comando YUM Package Manager nel file di specifica della build.

Nota

Oracle GraalVM è disponibile su Oracle Cloud Infrastructure (OCI) senza costi aggiuntivi.

Aggiornamento del file di specifica build

Per installare e utilizzare Oracle GraalVM nella pipeline di build DevOps, aggiornare il file di specifica di build come indicato di seguito.

  1. Aggiungere il seguente comando per installare uno o più componenti Oracle GraalVM necessari. Ad esempio, questo comando installa l'immagine nativa insieme al JDK e ad altre dipendenze necessarie. 
    steps:
  - type: Command
    name: "Install the latest Oracle GraalVM for JDK 20 - JDK and Native Image"
    command: |
      yum -y install graalvm-20-native-image
  2. Impostare la variabile di ambiente JAVA_HOME. 
    env:
  variables:
    "JAVA_HOME" : "/usr/lib64/graalvm/graalvm-java20"
  3. Impostare la variabile di ambiente PATH.
    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 the PATH here"
    command: |
      export PATH=$JAVA_HOME/bin:$PATH

Ad esempio 1:

File di specifica build di esempio per creare un eseguibile nativo da un'applicazione Java utilizzando Maven e Oracle GraalVM per JDK 17 - Native Image.

version: 0.1
component: build
timeoutInSeconds: 600
runAs: root
shell: bash
env:
  variables:
    "JAVA_HOME" : "/usr/lib64/graalvm/graalvm-java17"
    # PATH is a reserved variable and cannot be defined as a variable.
    # However, PATH can be changed in a build step and the change is visible in subsequent steps.
steps:
  - type: Command
    name: "Install the latest Oracle GraalVM for JDK 17 - JDK and Native Image"
    command: |
      yum -y install graalvm-17-native-image
  - type: Command
    name: "Set the PATH here. JAVA_HOME already set in env > variables above."
    command: |
      export PATH=$JAVA_HOME/bin:$PATH
  - type: Command
    name: "Build a native executable with Oracle GraalVM for JDK 17 - Native Image"
    command: |
      mvn --no-transfer-progress -Pnative -DskipTests package
outputArtifacts:
  - name: app_native_executable
    type: BINARY
    location: target/my-app

Ad esempio 2:

File di specifica build di esempio per creare un eseguibile nativo da un'applicazione Micronaut utilizzando Maven e Oracle GraalVM per JDK 17 - Native Image.

version: 0.1
component: build
timeoutInSeconds: 900
runAs: root
shell: bash
env:
  variables:
    "JAVA_HOME" : "/usr/lib64/graalvm/graalvm-java17"
    TAG: "mn-hello-ni:0.0.1"
    APP_FILE: "MnHelloRest"
  exportedVariables:
    - BUILDRUN_HASH
steps:
  - type: Command
    name: "Define unique image tag"
    timeoutInSeconds: 140
    command: |
      echo "OCI_BUILD_RUN_ID: ${OCI_BUILD_RUN_ID}"
      export BUILDRUN_HASH=`echo ${OCI_BUILD_RUN_ID} | rev | cut -c 1-7`
      echo "BUILDRUN_HASH: " $BUILDRUN_HASH
  - type: Command
    name: "Install the latest Oracle GraalVM for JDK 17 - JDK and Native Image"
    command: |
      yum -y install graalvm-17-native-image
  - type: Command
    name: "Set the PATH here. JAVA_HOME already set in env > variables above."
    command: |
      export PATH=$JAVA_HOME/bin:$PATH
  - type: Command
    name: "Build a native executable with Oracle GraalVM for JDK 17 - Native Image"
    command: |
      ./mvnw --no-transfer-progress package -Dpackaging=native-image
  - type: Command
    name: "Package the native executable in a runtime container image"
    command: |
      docker build -f ./Dockerfile \
                  --build-arg APP_FILE=${APP_FILE} \
                  -t ${TAG} .
outputArtifacts:
  - name: app_native_executable
    type: BINARY
    location: target/MnHelloRest
  - name: runtime_image
    type: DOCKER_IMAGE
    location: ${TAG}

Ad esempio 3:

File di specifica build di esempio per creare un eseguibile nativo da un'applicazione Java utilizzando Maven e GraalVM Enterprise 22.x per Java 17 - Native Image.

version: 0.1
component: build
timeoutInSeconds: 600
runAs: root
shell: bash
env:
  variables:
    "JAVA_HOME" : "/usr/lib64/graalvm/graalvm22-ee-java17"
    # PATH is a reserved variable and cannot be defined as a variable.
    # However, PATH can be changed in a build step and the change is visible in subsequent steps.
steps:
  - type: Command
    name: "Install the latest GraalVM Enterprise 22.x for Java 17 - JDK and Native Image"
    command: |
      yum -y install graalvm22-ee-17-native-image
  - type: Command
    name: "Set the PATH here. JAVA_HOME already set in env > variables above."
    command: |
      export PATH=$JAVA_HOME/bin:$PATH
  - type: Command
    name: "Build a native executable with the installed GraalVM Enterprise 22.x for Java 17 - Native Image"
    command: |
      mvn --no-transfer-progress -Pnative -DskipTests package
outputArtifacts:
  - name: app_native_executable
    type: BINARY
    location: target/my-app

Ad esempio 4:

File di specifica build di esempio per creare un eseguibile nativo da un'applicazione Micronaut utilizzando Maven e GraalVM Enterprise 22.x per Java 17 - Native Image.

version: 0.1
component: build
timeoutInSeconds: 900
runAs: root
shell: bash
env:
  variables:
    "JAVA_HOME" : "/usr/lib64/graalvm/graalvm22-ee-java17"
    TAG: "mn-hello-ni:0.0.1"
    APP_FILE: "MnHelloRest"
  exportedVariables:
    - BUILDRUN_HASH
steps:
  - type: Command
    name: "Define unique image tag"
    timeoutInSeconds: 140
    command: |
      echo "OCI_BUILD_RUN_ID: ${OCI_BUILD_RUN_ID}"
      export BUILDRUN_HASH=`echo ${OCI_BUILD_RUN_ID} | rev | cut -c 1-7`
      echo "BUILDRUN_HASH: " $BUILDRUN_HASH
  - type: Command
    name: "Install the latest GraalVM Enterprise 22.x for Java 17 - JDK and Native Image"
    command: |
      yum -y install graalvm22-ee-17-native-image
  - type: Command
    name: "Set the PATH here. JAVA_HOME already set in env > variables above"
    command: |
      export PATH=$JAVA_HOME/bin:$PATH
  - type: Command
    name: "Build a native executable with the installed GraalVM Enterprise 22.x for Java 17 - Native Image"
    command: |
      ./mvnw --no-transfer-progress package -Dpackaging=native-image
  - type: Command
    name: "Package the native executable in a runtime container image"
    command: |
      docker build -f ./Dockerfile \
                  --build-arg APP_FILE=${APP_FILE} \
                  -t ${TAG}
outputArtifacts:
  - name: app_native_executable
    type: BINARY
    location: target/MnHelloRest
  - name: runtime_image
    type: DOCKER_IMAGE
    location: ${TAG}