Automated Docker Registry Cleanup and Notification Workflow

Overview

This workflow automates the cleanup of Docker registries by identifying and removing outdated image tags. It leverages scheduled triggers and multiple HTTP requests to interact with the Docker registry API, ensuring that only relevant and recent images are retained.

Key Features

• Scheduled Execution: Initiates cleanup at defined intervals using a schedule trigger.
• Image and Tag Management: Retrieves image lists and tags, filters out valid tags, and identifies obsolete ones for removal.
• Automated Cleanup: Executes HTTP requests to delete old image tags and manifests, reducing manual intervention.
• Notification System: Sends summary emails upon completion to notify stakeholders of cleanup actions.

Benefits

• Resource Optimization: Frees up storage by removing unused images, lowering infrastructure costs.
• Operational Efficiency: Reduces manual maintenance, saving time and minimizing human error.
• Transparency: Automated email notifications keep teams informed about registry status and actions taken.

Use Cases

• DevOps Teams: Maintain clean and efficient Docker registries in CI/CD pipelines.
• IT Operations: Automate routine maintenance for container image storage.
• Organizations: Ensure compliance with storage policies and optimize cloud resource usage.

Integrations & Processes

• Utilizes HTTP API calls to Docker registry endpoints.
• Sends notifications via email for audit and transparency.