With the newer v3 version of easy-rsa I could not find a way to silently feed data to the command line:
$ ./easyrsa build-ca nopass
Note: using Easy-RSA configuration from: ./vars
Generating a 2048 bit RSA private key
...............................................................................................................................................................+++
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writing new private key to '~/EasyRSA-3.0.4/pki/private/ca.key.Dz9CBy9xV1'
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You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
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Common Name (eg: your user, host, or server name) [Easy-RSA CA]:
I've tried fiddling with the files openssl-easyrsa.cnf and vars but to no avail.
I'm automating these operations inside a docker container entrypoint which is why I can't go with anything interactive.
set_var EASYRSA_BATCH "yes"in thevarsfile, but that didn't work. Runningexport EASYRSA_BATCH=1did the trick. – ndbroadbent Sep 16 '19 at 13:23