Build a Free-Tier Image Pipeline with Alibaba Cloud OSS + CDN

说明与用途

创建 OSS 存储桶，使用 SDK 上传图片，添加 CDN 并配置缓存与图像处理。这样可降低服务器负载并节省成本。

问题

Managing uploaded images on an app server leads to disk bloat, high bandwidth costs, and backup challenges.

结果

The pipeline reduces server load, scales automatically, and keeps costs low by leveraging OSS storage and CDN caching.

工作流

• Create an OSS bucket with private access and public-read pattern
• Upload images via the Python OSS SDK from the backend or use STS for client-side uploads
• Set up a CDN domain pointing to the OSS bucket as origin
• Enable OSS image processing for on-the-fly transformations
• Configure CDN cache TTL (e.g., 7 days)
• Implement server-side upload validation (size, MIME, deduplication)
• Set lifecycle rules to move old originals to cold storage
• Log access for abuse detection

证据

Object storage (OSS) is built for exactly this job: Pay per gigabyte stored and per request — no idle capacity

来源

Create a CDN domain pointing at the OSS bucket as origin

来源