Add consolidated script to update component images

[Camila-B]

• Consolidates existing update-<component>-image.sh into update-component-image.sh
• Adds Helm and Kustomize update Make rules

[google-oss-prow]

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[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request introduces a new automated mechanism to keep the otelcontribcol image version up-to-date. By adding a dedicated shell script and integrating it into the Makefile, the process of fetching and applying the latest image tags is streamlined, reducing manual effort and ensuring that the project consistently uses recent and secure versions of the dependency.

Highlights

• New Automation Script: Introduced scripts/update-otelcontribcol-image.sh to automate the process of updating the otelcontribcol image version.
• Makefile Integration: Added a new make update-otelcontribcol-image target to the Makefile, allowing users to easily trigger the image version update.
• Flexible Update Types: The script supports updating to either the latest-version or latest-build of the otelcontribcol image, configurable via the UPDATE_TYPE environment variable.

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Changelog

• Makefile
  • Added comments explaining how to use the new update-otelcontribcol-image target.
  • Introduced a new update-otelcontribcol-image target that executes the scripts/update-otelcontribcol-image.sh script.
• scripts/update-otelcontribcol-image.sh
  • Added a new executable shell script.
  • Implemented logic to fetch the latest otelcontribcol image tag from gcr.io/config-management-release/otelcontribcol based on UPDATE_TYPE (latest-version or latest-build).
  • Updated the OTELCONTRIBCOL_VERSION variable in the Makefile with the newly fetched tag.

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[gemini-code-assist]

Code Review

This pull request introduces a script and a corresponding Makefile target to automate the update process for the otelcontribcol image version. The script correctly handles two modes of operation: updating to the latest version and updating to the latest build of the current version. The overall approach is solid. I've provided a few suggestions to enhance the script's robustness by improving how it parses and modifies the Makefile, and to make its error reporting more user-friendly.

[tiffanny29631]

Great work on this. This script should make Louhi automation much easier too. The regex is a bit brittle, but we can iterate on that later as long as image naming stays consistent. Are there plans for pipeline integration? If so, please consider adding dry-run and quiet flags to improve CI/CD compatibility. Not necessary in this PR.

[Camila-B]

Thanks! I'll add dry-run and quiet flags in a separate PR