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varikin | 4 years ago
Not always. If you have thousands of containers running, the network cost* for changing the base image is massive because each instance needs possibly all new layers, not just the last layer or 2. Having a smaller base image is very practical at this point.
* And for network cost, there is both the literal cost with egress from dockerhub, or another registry, but also the load on your network infra.
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