The recommended solution to achieve the requirements mentioned would be: Configure OCI Com-pute agent on OCI compute instances to collect the required resource metrics. Use OCI Events and Functions services to track the end-to-end deployment pipeline (com.oraclecloud.devopsdeploy.createdeployment) and the creation of new OCI Object Storage buckets (com.oraclecloud.objectstorage.createbucket). Finally, utilize OCI Notifications and Events services to notify these changes. Continuous monitoring with resource metrics: Install and configure the OCI Compute agent on the OCI compute instances to collect the required re-source metrics such as CPU utilization, memory utilization, and disk IOPS. This ensures continuous monitoring of the VMs as they are migrated to OCI. Monitoring the deployment pipeline: Utilize the OCI Events service to track the end-to-end deployment pipeline. Specifically, use the event type 'com.oraclecloud.devopsdeploy.createdeployment' to monitor the deployment process. This allows you to track the progress and status of the migration workflow. Notification for new OCI Object Storage buckets: Leverage the OCI Notifications service in conjunction with the OCI Events ser-vice. Set up a notification rule to trigger an email notification whenever a new OCI Object Storage bucket is created. Use the event type 'com.oraclecloud.objectstorage.createbucket' to identify the creation of new buckets. By combining the OCI Compute agent, OCI Events service, Functions service, and Notifications service, you can ensure continuous monitoring of resource metrics, track the deployment pipeline, and receive email notifications for any new OCI Object Storage bucket creations during the migration workflow.

To rollback to version 1 of a secret that has been rotated once, you need to do the following:

From the version 1 menu, select ''Promote to Current''. This will change the status of version 1 from Previous to Current, and change the status of version 2 from Current to Previous. This means that version 1 will be used as the current key version for encrypting and decrypting secrets.

Optionally, you can also delete version 2 if you no longer need it. From the version 2 menu, select ''Delete''. This will change the status of version 2 from Previous to Deleted. You can also restore or destroy deleted versions if needed. Verified Reference: [Rotating Secrets - Oracle Cloud Infrastructure Vault], [Managing Secret Versions - Oracle Cloud Infrastructure Vault]

This is because output artifacts are temporary files generated by the build process that are needed to deploy an application. Since these artifacts are not permanent, they need to be extracted from the build pipeline and stored in an Artifact Registry repository for easy distribution, versioning, and management. The Deliver Artifacts stage in the build pipeline is responsible for this task, which en-sures that the correct artifacts are used for each deployment. Here is the reference link for more in-formation on Oracle Cloud Infrastructure (OCI) DevOps build pipeline and Artifact Registry: Ref-erence: https://docs.oracle.com/en-us/iaas/developer-tutorials/tutorials/devops/01oci-devops-overview-contents.html#artifact-registry-overview

The configuration error that could lead to the 'unable to clone the repository' error is: Dynamic Groups access and OCI IAM policies to the code repository are not set: This error suggests that the necessary permissions and access controls have not been properly configured for the OCI Code Repository. Dynamic Groups and IAM policies control user access and permissions to various OCI re-sources, including code repositories. Without the correct configuration, the build pipeline is unable to clone the repository and retrieve the source code. The other options mentioned are not directly related to the error mentioned: More stages were added than required to the build pipeline: Adding more stages to the build pipeline than necessary would not cause an error related to cloning the repository. It might impact the overall flow and logic of the pipeline, but it is not directly related to the repository cloning process. Source files connected directly to the build pipeline: Connecting source files directly to the build pipeline is a typical setup and would not cause a 'unable to clone the repository' error. Artifacts and build spec being removed before running the build: Removing artifacts and build specifications before running the build could impact the build process and result in other errors, but it would not specifically cause an error related to cloning the repository. Reference: https://docs.oracle.com/en-us/iaas/Content/devops/using/troubleshooting.htm

The two offerings that DevOps tools can provide are: Integration between development and IT teams to achieve automation: DevOps tools facilitate collaboration and integration between development and IT operations teams. They provide a platform for automating processes, sharing information, and streamlining workflows, enabling faster and more efficient software development and deployment. Speeding up production consistency and speed by automating the Software Development Life Cycle (SDLC): DevOps tools automate various stages of the SDLC, including code compilation, testing, deployment, and monitoring. By automating these processes, DevOps tools help ensure consistency, reduce manual errors, and accelerate the release of software updates and new features. DevOps tools may also offer additional benefits such as improved security, reporting, and tracking metrics, but the primary offerings are integration and automation for faster and more efficient software delivery.

The two offerings which DevOps tool can provide are:

Integrates between development and IT teams to achieve automation. DevOps tools enable collaboration between developers and operations teams by breaking down silos and streamlining workflows. DevOps tools also automate routine tasks and eliminate manual processes that can cause errors and delays.

Speeds up production consistency and speed by automating SDLC. DevOps tools automate the software development lifecycle (SDLC) by enabling continuous integration and delivery (CI/CD) of software. DevOps tools also ensure consistency across different environments by using infrastructure as code (IaC) and configuration management techniques. Verified Reference: [DevOps - Oracle Cloud Infrastructure Developer Tools], [DevOps Tools - Oracle Cloud Infrastructure Developer Tools]