I have an Ansible playbook for deploying a Java app as an init.d daemon.
Being a beginner in both Ansible and Linux I'm having trouble to
conditionally execute tasks on a host based on the host's status.
Namely I have some hosts having the service already present and running
where I want to stop it before doing anything else. And then there might be
new hosts, which don't have the service yet. So I can't simply use service:
name={{service_name}} state=stopped, because this will fail on new hosts.
How I can I achieve this? Here's what I have so far:
- name: Check if Service Exists
shell: "if chkconfig --list | grep -q my_service; then echo true; else
echo false; fi;"
register: service_exists
# This should only execute on hosts where the service is present
- name: Stop Service
service: name={{service_name}} state=stopped
when: service_exists
register: service_stopped
# This too
- name: Remove Old App Folder
command: rm -rf {{app_target_folder}}
when: service_exists
# This should be executed on all hosts, but only after the service has stopped,
if it was present
- name: Unpack App Archive
unarchive: src=../target/{{app_tar_name}} dest=/opt
--
You received this message because you are subscribed to the Google Groups
"Ansible Project" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit
https://groups.google.com/d/msgid/ansible-project/4bbba63e-050c-4a5b-9758-a4f23389cd2f%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.
