I’m attempting to run
cdktf synth on an AWS Lambda function, targeting the writeable
tmp folder for the output as all other folders on the Lambda are read-only. However, running the command throws an error where cdktf seemingly attempts to write something to the home folder : “Error: EROFS: read-only file system, mkdir ‘/home/sbx_user1051’”.
Is this expected behavior?
The full command:
cdktf synth --output ~/tmp/cdktf/cdktf.out
This is probably the caching of the version check that’s happening. It writes to the
CDKTF_HOME directory (which by default is
~/.cdktf if I remember correctly). You can either set that directory to a writable one or try disabling the version check via the env var
I ended up disabling
CDKTF_DISABLE_PLUGIN_CACHE_ENV and setting
CDKTF_HOME to the writable
tmp directory on the Lambda, which did the trick.