Why doesn't openssl and vars config file work in easy rsa 3?

Question

linux

The crux of the matter is that when you change the parameters in openssl-1.0.cnf, nothing changes.
When using easy rsa 3 the config script doesn't work either

[[email protected] root-ca]# ./vars
You appear to be sourcing an Easy-RSA 'vars' file.
This is no longer necessary and is disallowed. See the section called
'How to use this file' near the top comments for more details.
./vars: line 38: return: can only `return' from a function or sourced script
./vars: line 46: set_var: команда не найдена
./vars: line 56: set_var: команда не найдена

piece of file

if [ -z "$EASYRSA_CALLER" ]; then
  echo "You appear to be sourcing an Easy-RSA 'vars' file." >&2
  echo "This is no longer necessary and is disallowed. See the section called" >&2
  echo "'How to use this file' near the top comments for more details." >&2
  return 1
fi

set_var EASYRSA	"$PWD"
set_var EASYRSA_OPENSSL	"openssl"

Help me to understand. factory vars file. I just uncommented a few options for an example.
googling gives very little information, and then, on setting up openvpn, which is not needed

Answer 1

Judging by this text:
You appear to be sourcing an Easy-RSA 'vars' file.
This is no longer necessary and is disallowed. See the section called
'How to use this file' near the top comments for more details.
easy-rsa no longer needs to do ". ./vars". What exactly needs to be done instead - I can’t say now, I have 2.2.2, I need to look at how it became in 3.
Ah, well, here it is:
# vars.example contains built-in examples to Easy-RSA settings. You MUST name
# this file 'vars' if you want it to be used as a configuration file. If you do
# not, it WILL NOT be automatically read when you call easyrsa commands.
It is enough just to rename vars.example to vars and uncomment / change the necessary settings there, the rest of the scripts will automatically read it, you do not need to source it manually.