npm install causing “No space left on device” Pivotal Cloud Foundry

Had an issue while deploying to a 2GB Pivotal Cloud Foundry instance during npm install buildpack step. My instance was limited to 2GB disk space, but somehow my 100mb application was filling up the drive.

Error was along the lines of:

cp: cannot create directory ‘/tmp/contents258369199/...’: No space left on device

Turns out npm’s package cache is on by default, and was saving all installed packages to a cache directory on disk. So if you’re limited on disk space during a build, turn this off with the environment variable:

NODE_MODULES_CACHE=false

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