Hello,
I need to use an Ansible playbook to dynamically generate Ansible group_var
type file. Here is my inventory file:
[group1]
server1.example.com
server2.example.com
[group2]
server3.example.com
server4.example.com
The generated mygroupvars file is expected to be:
group1_var: xyzabcdefghi
group2_var: abcejrje2ljree
The random string is produced by dd command like below:
dd if=/dev/urandom count=1 2>/dev/null | uuencode -m - | sed -ne 2p | cut
-c -20 | perl -p -i -e 's/\\+/x/g' | perl -p -i -e 's/\\//L/g'
uuencode is from sharutils package on CentOS 7
Here is my playbook:
- name: dummy
hosts: localhost
gather_facts: no
tasks:
- name: create file
file:
dest: mygroupvars
state: touch
delegate_to: localhost
- name: Generate random string
shell: "dd if=/dev/urandom count=1 2>/dev/null | uuencode -m - | sed
-ne 2p | cut -c -20 | perl -p -i -e 's/\+/x/g' | perl -p -i -e 's/\//L/g'"
register: op
- name: debug
debug:
msg: "{{ op }}"
- name: append
lineinfile:
dest: mygroupvars
line: "{{ op.stdout_lines }}"
insertafter: EOF
delegate_to: localhost
This playbook only generates one random string, and writes it to
mygroupvars file. I need to loop through inventory file, based on number of
groups in inventory file, generate the same number of random string
matching number of groups, and write them all to mygroupvars file using the
group_var file format. It is key/value pair. The key contains group name
with suffix _var. The values come from random string generated.
How can I accomplish it?
Thank you!
- Xinhuan
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