Merge branch 't38273-extract-roles-reconfigurations' into 'main'

roles/netcapture/tasks/configure/miris-configure.yml

roles/netcapture/tasks/install.yml

roles/netcapture/tasks/main.yml

roles/netcapture/vars/main.yml

roles/nftables/README.md

roles/nftables/vars/main.yml

roles/nginx/README.md

roles/nginx/defaults/main.yml

roles/nginx/tasks/base.yml

roles/nginx/tasks/install.yml

roles/nginx/tasks/main.yml

roles/nginx/vars/main.yml

roles/postfix/defaults/main.yml

roles/postfix/handlers/main.yml

roles/postfix/tasks/configure.yml

roles/postfix/tasks/configure/aliases.yml

roles/postfix/tasks/configure/mailname.yml

roles/postfix/tasks/configure/postfix_authentication.yml

roles/postfix/tasks/configure/postfix_generic.yml

roles/postfix/tasks/configure/postfix_main.yml