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Migrating from Nextcloud to Azure S3
- The migration from Nextcloud to Azure S3 was driven by issues with performance, infrastructure impact, and architectural challenges.
- Nextcloud's stability and performance problems, including frequent downtime and delays, led to the decision to seek a more scalable solution like Azure S3.
- Architectural issues, like direct access to storage servers and hardcoded URLs in PDFs pointing to specific servers, motivated the transition to a more centralized service approach.
- The migration plan involved routing all downloads and uploads through a service, migrating existing documents to Azure storage, and managing legacy Nextcloud links in exported PDFs.
- Challenges in the migration process included token management for document identification, implementing document previews, optimizing PDFs and images, and ensuring proper HTTP headers for file downloads.
- Security measures included monitoring for spoofed HTTP headers, scanning files for viruses, and using tools like clamscan to ensure file safety.
- Monitoring and maintaining control over usage, logs, and metrics were highlighted as critical for infrastructure stability.
- The migration process involved data extraction, setting up the environment, and transferring resources from Nextcloud to Azure using a specialized Node.js API.
- Managing legacy URLs in PDFs required establishing a microservice with SQLite database support to correlate tokens with tenant IDs, allowing for efficient URL rewriting and redirection.
- The project emphasized the importance of meticulous planning, efficient data handling, and adapting to unexpected challenges for a successful migration from Nextcloud to Azure S3.
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