Fabian Lee : Software Engineer

Bash: indirect reference to evaluate a variable value

December 6, 2023
Categories: Linux

If you want a variable to reference another variable in Bash, that is possible using a concept called indirect reference. Below is a simple example where ‘varname’ contains the name of another variable ‘foo’. # our variable foo=bar # our reference varname=foo # the following syntax will ERROR and DOES NOT work !!! echo “${$varname}” … Bash: indirect reference to evaluate a variable value

Ansible: creating SAN certificates with a custom root CA

April 5, 2021
Categories: Automation

Ansible has support for generating self-signed certificates as well as certificates using a custom root CA (certificate authority). This is possible using the community.crypto collection. I’ve put this into a role named ansible-role-cert-with-ca available on github, and it can be used from a playbook like below: vars: # custom CA, leaving undefined will create self-signed … Ansible: creating SAN certificates with a custom root CA