fedelemantuano

How to setup your own CA with OpenSSL

For educational reasons I've decided to create my own CA. Here is what I learned.

First things first

Lets get some context first.

fedelemantuano

FROM alpine:latest

RUN apk add --no-cache postfix postfix-pcre rsyslog

RUN postconf -e "myhostname=localhost" \
 && postconf -e "mynetworks_style=host" \
 && postconf -e "mail_spool_directory=/var/mail/" \
 && postconf -e "virtual_alias_maps=pcre:/etc/postfix/virtual" \
 && echo "/.*/ root" > /etc/postfix/virtual \
 && postmap /etc/postfix/virtual \