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Using nvm from postCreateCommand or another lifecycle command

Certain operations like postCreateCommand run non-interactive, non-login shells. Unfortunately, nvm is really particular that it needs to be "sourced" before it is used, which can only happen automatically with interactive and/or login shells. Fortunately, this is easy to work around:

Just can source the nvm startup script before using it:

"postCreateCommand": ". ${NVM_DIR}/nvm.sh && nvm install --lts"

Note that typically the default shell in these cases is sh not bash, so use . ${NVM_DIR}/nvm.sh instead of source ${NVM_DIR}/nvm.sh.

Alternatively, you can start up an interactive shell which will in turn source nvm:

"postCreateCommand": "bash -i -c 'nvm install --lts'"

OS Support

Debian/Ubuntu, RedHat Enterprise Linux, Fedora, Alma, and Rocky Linux distributions with the apt, yum, dnf, or microdnf package manager installed.

Note: RedHat 7 Family (RedHat, CentOS, etc.) must use Node versions less than 18 due to its system libraries and long-term support (LTS) policies.

bash is required to execute the install.sh script.