1. Continuous Delivery of AI Applications via OCI Repositories


    To achieve continuous delivery of AI applications using Oracle Cloud Infrastructure (OCI) repositories, you would typically need to set up an automated pipeline that builds, tests, and deploys your code whenever a change is made to the repository. This process generally involves creating repositories to store your code, building your application, storing artifacts, and deploying your application.

    Pulumi provides infrastructure as code (IaC) capabilities that allow you to define your cloud infrastructure using code, and automate the provisioning and management of resources. Below is a detailed outline of how you can construct a continuous delivery pipeline for AI applications using Pulumi with OCI services.

    1. OCI Artifacts Repository: This is where you'll store different kinds of artifacts that are part of your build process. OCI supports generic, container, and Helm chart repositories. You can define one depending on the nature of your application's deployment.

    2. OCI DevOps Project: A project in OCI DevOps is a logical grouping for all of your DevOps resources like pipelines and environments.

    3. OCI DevOps Build Pipeline: The build pipeline is a set of defined instructions for delivering new software versions. In OCI, this will automate the building and testing of the AI application.

    4. OCI DevOps Deployment Pipeline: After a successful build, the deployment pipeline helps in the release process by making the new version of your application available.

    5. OCI DevOps Artifacts: As part of the build and deployment process, artifacts (like a Docker image or JAR file) are created, which are then used in deployment stages.

    6. Triggers and Source Control: Besides defining the pipelines and artifacts, you would want to integrate OCI DevOps with your version control system—such as GitHub or GitLab—to automate the triggering of the build pipeline on a new commit or pull request.

    Here's how you might define some of those resources with Pulumi in Python:

    import pulumi_oci as oci # Initialize the OCI provider configuration (assumes you've already setup the provider configuration) # This could be set using environment variables or the OCI config file # Create an OCI Artifacts Container Repository to store container images container_repo = oci.artifacts.ContainerRepository("containerRepo", compartment_id="ocid1.compartment.oc1..xxxxxx", # replace with your Compartment OCID is_public=True, description="Repository for AI application container images") # Start by defining a DevOps Project devops_project = oci.devops.Project("devopsProject", compartment_id="ocid1.compartment.oc1..xxxxxx", # replace with your Compartment OCID description="DevOps project for AI application") # Define a DevOps Repository if you'd like to manage the source within OCI devops_repository = oci.devops.Repository("devopsRepository", project_id=devops_project.id, repository_type="GIT", description="Source repository for AI application") # Define a DevOps Build Pipeline build_pipeline = oci.devops.BuildPipeline("buildPipeline", project_id=devops_project.id, description="Build pipeline for AI application") # Define a stage in a Build Pipeline, for example, a managed build stage that uses Oracle Linux to build build_pipeline_stage = oci.devops.BuildPipelineStage("buildPipelineStage", description="Build stage for AI Application", build_pipeline_id=build_pipeline.id, build_pipeline_stage_type="MANAGED_BUILD", build_spec_file="path/to/build_spec.yaml", # should contain the instructions for build primary_build_source="VCS", # can be "VCS" if the source is a connected version control system image="ol7Developer" # Example image name, replace with a valid build environment image ) # You'd continue in this fashion to define more pipeline stages, the deployment pipeline, # and other resources needed for CI/CD. This just establishes the foundational resources. # Export any important attributes of resources that were created pulumi.export('container_repository_url', container_repo.repository_url) pulumi.export('devops_project_id', devops_project.id) pulumi.export('build_pipeline_id', build_pipeline.id)

    Let's walk through this program:

    • We import the pulumi_oci library, which gives us access to the OCI Pulumi provider to manage resources in Oracle Cloud.
    • Then, we create a container repository for storing our AI application container images. This is a public repository, but you can choose to keep it private and use authentication for access control.
    • A DevOps project is set up to logically group all our DevOps resources, including pipelines and repositories.
    • A repository within OCI DevOps service could be set up to maintain the application source code if needed.
    • The build pipeline is defined to automate the building and testing of the AI application and can consist of various stages such as build, test, and artifact publishing. In this example, we create a build stage associated with this pipeline that uses a specification file defining the build steps.
    • Finally, we export important information like the URLs and IDs of the resources we've created. These outputs can be used elsewhere in our Pulumi stack or in the Pulumi Console.

    This code serves as the foundation of a continuous delivery setup in OCI for AI applications. You would expand upon this to include deployment pipelines and integrate with source control to complete the continuous delivery workflow.

    Remember, this is a foundational step. Continuous delivery typically requires a thoughtful plan for building (compiling and unit testing), artifact management (storing successful builds for deployment), and deployment (rolling out the build to production, potentially with additional tests along the way). You would need to define additional Pulumi resources to represent each step in this process tailored to the specifics of your AI application and operational practices.