Hi - trying to ensure I can make tasks dependent on prior task successes in
roles inside playbooks.
So far it doesn't happen. I'm using a combination of register/when.
What is the method within a series of tasks in a role's tasks/main.yml to
make one dependent upon the prior one's running as success?
This only partially works:
---
# tasks file for host
- name: Add the OS specific variables
include_vars: "{{ ansible_os_family }}.yml"
- name: Install /etc/hosts
template: >
src=hosts.j2
dest=/etc/hosts
owner=root
group=root
mode=0644
register: filechanged
tags: hosts
- name: Install /etc/hostname
template: >
src=hostname.j2
dest=/etc/hostname
owner=root
group=root
mode=0644
register: filechanged
tags: hostname
- name: Install /etc/network/interfaces
template: >
src=interfaces.j2
dest=/etc/network/interfaces
owner=root
group=root
mode=0644
register: filechanged
tags: interfaces
- name: Run hostname
command: /bin/hostname {{ hostalias }}
when: filechanged|success
tags: hostname-run
- name: Restart networking
service: name=networking state=restarted
when: filechanged|success
tags: network
which produces this even though nothing is changed:
ansible-playbook host.yml --check --ask-sudo-pass
PLAY [testers]
****************************************************************
GATHERING FACTS
***************************************************************
ok: [tstsmc1]
TASK: [host | Add the OS specific variables]
**********************************
ok: [tstsmc1]
TASK: [host | Install /etc/hosts]
*********************************************
ok: [tstsmc1]
TASK: [host | Install /etc/hostname]
******************************************
ok: [tstsmc1]
TASK: [host | Install /etc/network/interfaces]
********************************
ok: [tstsmc1]
TASK: [host | Run hostname]
***************************************************
skipping: [tstsmc1]
TASK: [host | Restart networking]
*********************************************
changed: [tstsmc1]
PLAY RECAP
********************************************************************
tstsmc1 : ok=6 changed=1 unreachable=0 failed=0
My concern is why the restart networking would be run given that
filechanged is not asserted
by the first four tasks (nor any of the tasks.)
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