How to update bashrc to include default umask

[alpana17]

/etc/bash/bashrc is read-only file As /etc/bash/bashrc is symlink to /usr/share/bash/bashrc

To edit this file, I added

• path: /etc/bash/bashrc
  filesystem: root
  append: true
  contents:
  inline: |
  umask 027
  in ignition file. But when I passed it to user-data while launching the machine, it gave me error "Connection timeout"

Then I tried with same ignition just removed bashrc stuff, things worked as desired.

So, how can I make desired changes to bashrc?

[bgilbert]

Add a file with a .sh extension to /etc/profile.d.

[alpana17]

umask in /etc/profile or /etc/profile.d is applicable for login users only
I wanted to add in bashrc to apply usmask to nologin users
How can this be done?