Fix GraalVM default base image

compiler-plugin-tests/src/test/java/io/ballerina/c2c/test/samples/NativeJobTest.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright (c) 2024, WSO2 Inc. (http://www.wso2.org) All Rights Reserved.
+ *
+ * WSO2 Inc. licenses this file to you under the Apache License,
+ * Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License.q
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+package io.ballerina.c2c.test.samples;
+
+import com.github.dockerjava.api.command.InspectImageResponse;
+import io.ballerina.c2c.KubernetesConstants;
+import io.ballerina.c2c.exceptions.KubernetesPluginException;
+import io.ballerina.c2c.test.utils.KubernetesTestUtils;
+import io.ballerina.c2c.utils.KubernetesUtils;
+import io.fabric8.kubernetes.api.model.Container;
+import io.fabric8.kubernetes.api.model.batch.v1.Job;
+import org.testng.Assert;
+import org.testng.annotations.AfterClass;
+import org.testng.annotations.BeforeClass;
+import org.testng.annotations.Test;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.List;
+
+import static io.ballerina.c2c.KubernetesConstants.DOCKER;
+import static io.ballerina.c2c.KubernetesConstants.KUBERNETES;
+import static io.ballerina.c2c.test.utils.KubernetesTestUtils.getDockerImage;
+
+/**
+ * Test cases for sample 4.
+ */
+public class NativeJobTest extends SampleTest {
+
+    private static final Path SOURCE_DIR_PATH = SAMPLE_DIR.resolve("kubernetes-native-job");
+    private static final Path DOCKER_TARGET_PATH = SOURCE_DIR_PATH.resolve("target").resolve(DOCKER)
+            .resolve("hello");
+    private static final Path KUBERNETES_TARGET_PATH = SOURCE_DIR_PATH.resolve("target").resolve(KUBERNETES)
+            .resolve("hello");
+    private static final String DOCKER_IMAGE = "xlight-hello-0.0.1:latest";
+
+    @BeforeClass
+    public void compileSample() throws IOException, InterruptedException {
+
+        Assert.assertEquals(KubernetesTestUtils.compileBallerinaProject(SOURCE_DIR_PATH), 0);
+        File dockerFile = DOCKER_TARGET_PATH.resolve("Dockerfile").toFile();
+        Assert.assertTrue(dockerFile.exists());
+        InspectImageResponse imageInspect = getDockerImage(DOCKER_IMAGE);
+        Assert.assertNotNull(imageInspect.getConfig());
+    }
+
+    @Test
+    public void validateDockerfile() throws IOException {
+
+        File dockerFile = DOCKER_TARGET_PATH.resolve("Dockerfile").toFile();
+        Assert.assertTrue(dockerFile.exists());
+        String content = Files.readString(dockerFile.toPath(), StandardCharsets.UTF_8);
+        Assert.assertTrue(content.contains("RUN native-image -jar hello.jar -H:Name=hello --no-fallback " +
+                "-H:+StaticExecutableWithDynamicLibC"));
+        Assert.assertTrue(content.contains("FROM ghcr.io/graalvm/native-image-community:17-ol8 as build"));
+        Assert.assertTrue(content.contains("FROM gcr.io/distroless/base"));
+    }
+
+    @Test
+    public void validateJob() throws IOException {
+
+        File jobYAML = KUBERNETES_TARGET_PATH.resolve("hello.yaml").toFile();
+        Job job = KubernetesTestUtils.loadYaml(jobYAML);
+        Assert.assertEquals(job.getMetadata().getName(), "xlight-hello-0-job");
+        List<Container> containers = job.getSpec().getTemplate().getSpec().getContainers();
+        Assert.assertEquals(containers.size(), 1);
+        Container container = containers.get(0);
+        Assert.assertEquals(container.getImage(), DOCKER_IMAGE);
+        Assert.assertEquals(job.getSpec().getTemplate().getSpec()
+                .getRestartPolicy(), KubernetesConstants.RestartPolicy.OnFailure.name());
+    }
+
+    @AfterClass
+    public void cleanUp() throws KubernetesPluginException {
+
+        KubernetesUtils.deleteDirectory(KUBERNETES_TARGET_PATH);
+        KubernetesUtils.deleteDirectory(DOCKER_TARGET_PATH);
+        KubernetesTestUtils.deleteDockerImage(DOCKER_IMAGE);
+    }
+}

compiler-plugin-tests/src/test/resources/testng-integration.xml

@@ -42,6 +42,7 @@
             <class name="io.ballerina.c2c.test.samples.NativeBaseTest"/>
             <class name="io.ballerina.c2c.test.samples.NativeBuilderConfigTest"/>
             <class name="io.ballerina.c2c.test.samples.NativeImplicitArgsTest"/>
+            <class name="io.ballerina.c2c.test.samples.NativeJobTest"/>
             <class name="io.ballerina.c2c.test.samples.DockerProjectTest"/>
             <class name="io.ballerina.c2c.test.samples.DockerSingleTest"/>
             <class name="io.ballerina.c2c.test.SettingsMultiYAMLTest"/>

compiler-plugin-tests/src/test/resources/testng.xml

@@ -47,6 +47,7 @@
             <class name="io.ballerina.c2c.test.samples.NativeBaseTest"/>
             <class name="io.ballerina.c2c.test.samples.NativeBuilderConfigTest"/>
             <class name="io.ballerina.c2c.test.samples.NativeImplicitArgsTest"/>
+            <class name="io.ballerina.c2c.test.samples.NativeJobTest"/>
             <class name="io.ballerina.c2c.test.samples.DockerProjectTest"/>
             <class name="io.ballerina.c2c.test.samples.DockerSingleTest"/>
             <class name="io.ballerina.c2c.test.SettingsMultiYAMLTest"/>

compiler-plugin/src/main/java/io/ballerina/c2c/models/DeploymentModel.java

@@ -17,7 +17,6 @@
  */
 package io.ballerina.c2c.models;
 
-import io.ballerina.c2c.DockerGenConstants;
 import io.fabric8.kubernetes.api.model.ContainerPort;
 import io.fabric8.kubernetes.api.model.Probe;
 import io.fabric8.kubernetes.api.model.Quantity;
@@ -48,7 +47,6 @@ public class DeploymentModel extends KubernetesModel {
     private String namespace;
     private String image;
     private boolean buildImage;
-    private String baseImage;
     private String dockerHost;
     private String dockerCertPath;
     private List<ContainerPort> ports;
@@ -70,7 +68,6 @@ public DeploymentModel() {
         this.replicas = 1;
         this.envVars = new ArrayList<>();
         this.buildImage = true;
-        this.baseImage = DockerGenConstants.JRE_SLIM_BASE;
         this.labels = new LinkedHashMap<>();
         this.nodeSelector = new LinkedHashMap<>();
         this.ports = new ArrayList<>();

compiler-plugin/src/main/java/io/ballerina/c2c/utils/KubernetesUtils.java

@@ -286,14 +286,15 @@ public static void resolveDockerToml(KubernetesModel model) throws KubernetesPlu
             defaultBuilderCmd.append(" -H:+StaticExecutableWithDynamicLibC");
         }
         dockerModel.setBuilderCmd(defaultBuilderCmd.toString());
+        String defaultBaseImage = DockerGenConstants.JRE_SLIM_BASE;
+        if (dockerModel.isGraalVMBuild()) {
+            defaultBaseImage = DockerGenConstants.NATIVE_RUNTIME_BASE_IMAGE;
+        }
+        dockerModel.setBaseImage(defaultBaseImage);
         if (toml != null) {
             dockerModel
                     .setRegistry(TomlHelper.getString(toml, containerImage + ".repository", null));
             dockerModel.setTag(TomlHelper.getString(toml, containerImage + ".tag", dockerModel.getTag()));
-            String defaultBaseImage = DockerGenConstants.JRE_SLIM_BASE;
-            if (dockerModel.isGraalVMBuild()) {
-                defaultBaseImage = DockerGenConstants.NATIVE_RUNTIME_BASE_IMAGE;
-            }
             dockerModel.setBaseImage(TomlHelper.getString(toml, containerImage + ".base", defaultBaseImage));
             dockerModel.setEntryPoint(TomlHelper.getString(toml, containerImage + ".entrypoint",
                     dockerModel.getEntryPoint()));

examples/kubernetes-native-job/Ballerina.toml

@@ -0,0 +1,9 @@
+[package]
+org = "xlight"
+name= "hello"
+version = "0.0.1"
+
+[build-options]
+observabilityIncluded = true
+cloud = "k8s"
+graalvm = true

examples/kubernetes-native-job/README.md

@@ -0,0 +1,52 @@
+## Kubernetes Job
+
+- This sample shows how to run a ballerina application as a job using graalvm in Kubernetes. 
+
+### How to write:
+This segment shows how a c2c segment is mapped into cloud element. 
+
+1. `Ballerina code` segment
+```bal
+@cloud:Task
+public function main(string... args) {
+    io:println("hello world");
+}
+
+```
+2. Kubernetes YAML file segment
+```yaml
+apiVersion: "batch/v1"
+kind: "Job"
+metadata:
+  name: "anjana-main-tas-job"
+spec:
+  template:
+    spec:
+      containers:
+        - image: "anjana-main_task-0.1.0:latest"
+          name: "anjana-main-tas-job"
+      restartPolicy: "OnFailure"
+
+```
+
+
+### How to run:
+
+1. Build the Ballerina file.
+```bash
+$> bal build --cloud=k8s hello_world_job.bal
+Compiling source
+        hello_world_job.bal
+
+Generating executable
+
+Generating artifacts...
+
+        @kubernetes:Job                          - complete 1/1
+        @kubernetes:Docker                       - complete 2/2 
+
+        Execute the below command to deploy the Kubernetes artifacts: 
+        kubectl apply -f /Users/luheerathan/luhee/Ballerina-Project-Files/Test/c2c-test/examples/kubernetes-job/kubernetes
+
+        hello_world_job.jar
+```

examples/kubernetes-native-job/hello_world_job.bal

@@ -0,0 +1,7 @@
+import ballerina/io;
+import ballerina/cloud;
+
+@cloud:Task
+public function main(string... args) {
+    io:println("hello world");
+}