automated creation of a configuration file with ansible (or something else)
Q: "Read a data file, search a string (example:hostname contains "NR") ... choose the good template in a library in order to create the configuration file."
For example, given the data files
> ssh admin@test_11 cat /tmp/hostname
hostname-NR
> ssh admin@test_12 cat /tmp/hostname
hostname-NS
> ssh admin@test_13 cat /tmp/hostname
hostname-NX
and the templates
> cat templates/nr.j2
# template nr.j2
> cat templates/ns.j2
# template ns.j2
> cat templates/nt.j2
# template nt.j2
> cat templates/default.j2
# template default.j2
the play below
- hosts: test_11,test_12,test_13
vars:
templates_lib:
- {contains: "{{ my_hostname is search('NR') }}", template: nr.j2}
- {contains: "{{ my_hostname is search('NS') }}", template: ns.j2}
- {contains: "{{ my_hostname is search('NT') }}", template: nt.j2}
tasks:
- command: cat /tmp/hostname
register: result
- template:
src: "{{ my_template) }}"
dest: /tmp/test.conf
vars:
my_hostname: "{{ result.stdout }}"
my_template: "{{ templates_lib|
selectattr('contains')|
map(attribute='template')|
first|default('default.j2') }}"
gives
> ssh admin@test_11 cat /tmp/test.conf
# template nr.j2
> ssh admin@test_12 cat /tmp/test.conf
# template ns.j2
> ssh admin@test_13 cat /tmp/test.conf
# template default.j2