Answer
Unauthenticated users have pull limits. Exceeding limits prevents image pulls. Solutions include login, mirrors, or private registry.
Quick Answer
Docker Hub limits unauthenticated pulls (100/6h) and free account pulls (200/6h). In CI pipelines with many parallel jobs, you can easily hit the limit and get 429 errors. Solutions: authenticate with a Docker Hub account, use a pull-through cache, or mirror images to a private registry.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ