cloud run job with override

If you're working with Google Cloud Run and need to override job settings programmatically using the Java API, you can use the Google Cloud Client Libraries for Java. These libraries provide a way to interact with Google Cloud services, including Cloud Run, in a type-safe and idiomatic manner.

Below are some examples of how you can override various settings for a Cloud Run job using the Java API.

1. Setting Environment Variables

To set environment variables for a Cloud Run job, you can use the Job and ExecutionTemplate classes from the com.google.cloud.run.v2 package.

import com.google.cloud.run.v2.*;
import com.google.protobuf.FieldMask;

public class CloudRunJobExample {
    public static void main(String[] args) throws Exception {
        try (JobsClient jobsClient = JobsClient.create()) {
            String projectId = "your-project-id";
            String location = "us-central1";
            String jobName = "my-java-job";

            JobName name = JobName.of(projectId, location, jobName);

            // Create a new Job object with updated environment variables
            Job updatedJob = Job.newBuilder()
                    .setName(name.toString())
                    .putAllTemplate(ExecutionTemplate.newBuilder()
                            .putAllContainers(Container.newBuilder()
                                    .addEnv(EnvVar.newBuilder()
                                            .setName("APP_ENV")
                                            .setValue("production")
                                            .build())
                                    .addEnv(EnvVar.newBuilder()
                                            .setName("DB_URL")
                                            .setValue("jdbc:mysql://example.com/mydb")
                                            .build())
                                    .buildMap())
                            .buildMap())
                    .build();

            // Specify which fields to update
            FieldMask updateMask = FieldMask.newBuilder()
                    .addPaths("template.containers[0].env")
                    .build();

            // Update the job
            Job response = jobsClient.updateJobAsync(UpdateJobRequest.newBuilder()
                    .setJob(updatedJob)
                    .setUpdateMask(updateMask)
                    .build()).get();

            System.out.println("Updated job: " + response.getName());
        }
    }
}

2. Specifying Resource Limits

To set CPU and memory limits, you can modify the resources field in the Container object.

import com.google.cloud.run.v2.*;
import com.google.protobuf.FieldMask;

public class CloudRunJobExample {
    public static void main(String[] args) throws Exception {
        try (JobsClient jobsClient = JobsClient.create()) {
            String projectId = "your-project-id";
            String location = "us-central1";
            String jobName = "my-java-job";

            JobName name = JobName.of(projectId, location, jobName);

            // Create a new Job object with updated resource limits
            Job updatedJob = Job.newBuilder()
                    .setName(name.toString())
                    .putAllTemplate(ExecutionTemplate.newBuilder()
                            .putAllContainers(Container.newBuilder()
                                    .setResources(ResourceRequirements.newBuilder()
                                            .setLimits("cpu", "500m")
                                            .setLimits("memory", "512Mi")
                                            .setRequests("cpu", "100m")
                                            .setRequests("memory", "256Mi")
                                            .build())
                                    .buildMap())
                            .buildMap())
                    .build();

            // Specify which fields to update
            FieldMask updateMask = FieldMask.newBuilder()
                    .addPaths("template.containers[0].resources")
                    .build();

            // Update the job
            Job response = jobsClient.updateJobAsync(UpdateJobRequest.newBuilder()
                    .setJob(updatedJob)
                    .setUpdateMask(updateMask)
                    .build()).get();

            System.out.println("Updated job: " + response.getName());
        }
    }
}

3. Configuring Concurrency

To set the concurrency level, you can modify the concurrency field in the ExecutionTemplate.

import com.google.cloud.run.v2.*;
import com.google.protobuf.FieldMask;

public class CloudRunJobExample {
    public static void main(String[] args) throws Exception {
        try (JobsClient jobsClient = JobsClient.create()) {
            String projectId = "your-project-id";
            String location = "us-central1";
            String jobName = "my-java-job";

            JobName name = JobName.of(projectId, location, jobName);

            // Create a new Job object with updated concurrency
            Job updatedJob = Job.newBuilder()
                    .setName(name.toString())
                    .putAllTemplate(ExecutionTemplate.newBuilder()
                            .setConcurrency(80)
                            .buildMap())
                    .build();

            // Specify which fields to update
            FieldMask updateMask = FieldMask.newBuilder()
                    .addPaths("template.concurrency")
                    .build();

            // Update the job
            Job response = jobsClient.updateJobAsync(UpdateJobRequest.newBuilder()
                    .setJob(updatedJob)
                    .setUpdateMask(updateMask)
                    .build()).get();

            System.out.println("Updated job: " + response.getName());
        }
    }
}

4. Overriding the Command and Arguments

To set the command and arguments for the container, you can modify the command and args fields in the Container object.

import com.google.cloud.run.v2.*;
import com.google.protobuf.FieldMask;

public class CloudRunJobExample {
    public static void main(String[] args) throws Exception {
        try (JobsClient jobsClient = JobsClient.create()) {
            String projectId = "your-project-id";
            String location = "us-central1";
            String jobName = "my-java-job";

            JobName name = JobName.of(projectId, location, jobName);

            // Create a new Job object with updated command and arguments
            Job updatedJob = Job.newBuilder()
                    .setName(name.toString())
                    .putAllTemplate(ExecutionTemplate.newBuilder()
                            .putAllContainers(Container.newBuilder()
                                    .setCommand(Arrays.asList("java"))
                                    .setArgs(Arrays.asList("-jar", "app.jar", "--spring.profiles.active=prod"))
                                    .buildMap())
                            .buildMap())
                    .build();

            // Specify which fields to update
            FieldMask updateMask = FieldMask.newBuilder()
                    .addPaths("template.containers[0].command")
                    .addPaths("template.containers[0].args")
                    .build();

            // Update the job
            Job response = jobsClient.updateJobAsync(UpdateJobRequest.newBuilder()
                    .setJob(updatedJob)
                    .setUpdateMask(updateMask)
                    .build()).get();

            System.out.println("Updated job: " + response.getName());
        }
    }
}

5. Specifying a Service Account

To set the service account for the job, you can modify the serviceAccount field in the Job object.

import com.google.cloud.run.v2.*;
import com.google.protobuf.FieldMask;

public class CloudRunJobExample {
    public static void main(String[] args) throws Exception {
        try (JobsClient jobsClient = JobsClient.create()) {
            String projectId = "your-project-id";
            String location = "us-central1";
            String jobName = "my-java-job";

            JobName name = JobName.of(projectId, location, jobName);

            // Create a new Job object with updated service account
            Job updatedJob = Job.newBuilder()
                    .setName(name.toString())
                    .setServiceAccount("my-service-account@my-project.iam.gserviceaccount.com")
                    .build();

            // Specify which fields to update
            FieldMask updateMask = FieldMask.newBuilder()
                    .addPaths("service_account")
                    .build();

            // Update the job
            Job response = jobsClient.updateJobAsync(UpdateJobRequest.newBuilder()
                    .setJob(updatedJob)
                    .setUpdateMask(updateMask)
                    .build()).get();

            System.out.println("Updated job: " + response.getName());
        }
    }
}

Notes:

• Ensure you have the Google Cloud Client Library for Java added to your project's dependencies.
• Replace placeholders like your-project-id, us-central1, and my-java-job with your actual values.
• The FieldMask is used to specify which fields should be updated in the job configuration.

These examples should help you get started with overriding Cloud Run job settings using the Java API. If you have any specific requirements or encounter issues, feel free to ask for further assistance!