257 feature add current ipds implementations to the silver system

[Aravinda-HWK]

📌 Description

This PR is to thunder and keycloak implementation for each interface function along with docker-compose files.

• Closes [FEATURE] Add Current ipds implementations to the silver system #257

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🔍 Changes Made

• Added the docker-compose files to thunder and keycloak
• Added the thunder and keycloak implementation

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✅ Checklist (Email System)

• Core services tested (SMTP, IMAP, mail storage, end-to-end delivery)
• Security & compliance verified (auth via Thunder IDP, TLS, DKIM/SPF/DMARC, spam/virus filtering)
• Configuration & deployment checked (configs generated, Docker/Compose updated)
• Reliability confirmed (error handling, logging, monitoring)
• Documentation & usage notes updated (README, deployment, API)

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🧪 Testing Instructions

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📷 Screenshots / Logs (if applicable)

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⚠️ Notes for Reviewers

[gemini-code-assist]

Summary of Changes

Hello @Aravinda-HWK, 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 significantly enhances the 'silver system' by integrating two new identity providers: Keycloak and Thunder (WSO2). The changes provide the necessary infrastructure and scripting to deploy, configure, and manage these IDPs using Docker Compose, enabling robust authentication and user management capabilities for the mail system. This work directly addresses the need for diverse and flexible identity solutions.

Highlights

• New Identity Provider Implementations: Introduced Docker Compose configurations and corresponding shell scripts for integrating Keycloak and Thunder (WSO2) as identity providers into the silver system.
• Docker Compose Configurations: Added docker-compose.keycloak.yaml and docker-compose.thunder.yaml to define the services, volumes, and networks required to run these IDPs.
• IDP Management Scripts: Created keycloak-idp.sh and thunder-idp.sh scripts to handle the lifecycle of each IDP, including initialization, readiness checks, configuration (realm/org unit, client/schema creation), and cleanup.

Changelog

• scripts/idp/docker/docker-compose.keycloak.yaml
  • Added Docker Compose file for Keycloak service.
  • Configured Keycloak with environment variables for admin credentials, database, HTTP settings, and proxy.
  • Included port mappings, data volumes, and health checks for the Keycloak container.
  • Provided commented-out sections for production-ready PostgreSQL and HTTPS configurations.
• scripts/idp/docker/docker-compose.thunder.yaml
  • Added Docker Compose file for Thunder (WSO2) service.
  • Defined services for database initialization, setup, and the main Thunder server.
  • Configured volumes for persistent data and mounted SSL certificates.
  • Set up dependencies to ensure proper service startup order.
• scripts/idp/providers/keycloak-idp.sh
  • Implemented keycloak_initialize function to start Keycloak services using Docker Compose.
  • Added keycloak_wait_for_ready function with multiple health check endpoints to ensure Keycloak is operational.
  • Developed keycloak_configure function to authenticate with Keycloak, create a 'silver-mail' realm and client, and initialize the domain in a shared database.
  • Included keycloak_cleanup function to stop and remove Keycloak services.
  • Exported all Keycloak-related functions for external use.
• scripts/idp/providers/thunder-idp.sh
  • Implemented thunder_initialize function to start Thunder services using Docker Compose.
  • Added thunder_wait_for_ready function to check Thunder's readiness, accepting 401 as a valid response.
  • Developed thunder_configure function to authenticate with Thunder, create an organization unit, define a 'emailuser' schema, and initialize the domain in a shared database.
  • Included thunder_cleanup function to stop and remove Thunder services.
  • Exported all Thunder-related functions for external use.

Activity

• The pull request was created by Aravinda-HWK.
• The author provided a detailed description outlining the purpose and changes, including a checklist for email system verification.

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[gemini-code-assist]

Code Review

This pull request introduces implementations for Keycloak and Thunder as identity providers, including their respective Docker Compose configurations and setup scripts. While this is a valuable addition, the current implementation has several critical security vulnerabilities and a configuration error that need to be addressed. Specifically, there are hardcoded credentials in the shell scripts and insecure use of curl that bypasses certificate validation. Additionally, the Keycloak Docker Compose file contains an incorrect volume path which will cause it to fail.