[Multi-Node VLLM] - Why do we need to run apt-update twice in dockerfile

[bhiravabhatla]

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[Multi-Node VLLM] - Why do we need to run apt-update twice in dockerfile

Provide a link to the example/module related to the question

terraform-aws-eks-blueprints/patterns/multi-node-vllm/Dockerfile

Line 13 in edf44e0

apt update

terraform-aws-eks-blueprints/patterns/multi-node-vllm/Dockerfile

Line 33 in edf44e0

apt update

)

@bryantbiggs

Additional context

[bryantbiggs]

each RUN statement that uses apt to install something requires an update since we are cleaning out the cache at the end of each layer

terraform-aws-eks-blueprints/patterns/multi-node-vllm/Dockerfile

Lines 24 to 25 in edf44e0

	apt clean
	rm -rf /var/{log,dpkg.log}

we do this so that each layer stays smaller since trying to remove those bits in a subsequent layer won't actually remove them (unless we squashed the layers)