Assuming the below tasks:
- shell: "some_script.sh"
register: "some_script_result"
- debug:
msg: "Output: {{ some_script_result.stdout_lines }}
I receive the below output:
"msg": "Output: [u'some_value',u'some_value2,u'some_value3]"
How do I get the output to print as?
"msg":
Output:
- some_value
- some_value2
- some_value3
Ansible version is 2.4.2.
Try this option. You’ll love it.
There's a new YAML callback plugin introduced with Ansible 2.5 — meaning any machine running Ansible 2.5.0 or later can automatically start using this format without installing custom plugins.
To use it, edit your ansible.cfg file (either globally, in /etc/ansible/ansible.cfg, or locally in your playbook/project), and add the following lines under the [defaults] section:
# Use the YAML callback plugin.
stdout_callback = yaml
# Use the stdout_callback when running ad-hoc commands.
bin_ansible_callbacks = True
Now I can easily read through your output message
If you get the following error:
ERROR! Invalid callback for stdout specified: yaml
run
ansible-galaxy collection install community.general
What I found to work best so far for getting CLI-like output in Ansible, and which should work out of the box (at least for me on Fedora 34, Ansible 2.9), is setting
stdout_callback = unixy
bin_ansible_callbacks = True
in your ansible.cfg. Given the tasks
tasks:
- name: uptime
shell: uptime
- name: volumes
shell: "df -h"
the output in the terminal will look like
- all on hosts: all -
uptime...
host1 done | stdout: 08:20:09 up 33 min, 1 user, load average: 0.55, 0.27, 0.26
host2 done | stdout: 08:20:09 up 1 day, 1:39, 1 user, load average: 0.18, 0.17, 0.17
volumes...
host1 done | stdout: Filesystem Size Used Avail Use% Mounted on
/dev/root 7.2G 1.5G 5.4G 21% /overlay/pivot
devtmpfs 212M 0 212M 0% /dev
none 217M 0 217M 0% /overlay/pivot/overlay
none 217M 137M 80M 64% /overlay/rwdata
overlay 217M 137M 80M 64% /
tmpfs 217M 0 217M 0% /dev/shm
tmpfs 217M 25M 192M 12% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 217M 0 217M 0% /sys/fs/cgroup
/dev/mmcblk0p1 253M 53M 200M 21% /boot
tmpfs 44M 0 44M 0% /run/user/1000
host2 done | stdout: Filesystem Size Used Avail Use% Mounted on
/dev/root 7.2G 1.5G 5.4G 22% /overlay/pivot
devtmpfs 212M 0 212M 0% /dev
none 217M 0 217M 0% /overlay/pivot/overlay
none 217M 103M 114M 48% /overlay/rwdata
overlay 217M 103M 114M 48% /
tmpfs 217M 0 217M 0% /dev/shm
tmpfs 217M 5.8M 211M 3% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
tmpfs 217M 0 217M 0% /sys/fs/cgroup
/dev/mmcblk0p1 253M 53M 200M 21% /boot
tmpfs 44M 0 44M 0% /run/user/1000
- Play recap -
host1 : ok=1 changed=1 unreachable=0 failed=0 rescued=0 ignored=0
host2 : ok=1 changed=1 unreachable=0 failed=0 rescued=0 ignored=0
You should be able to list all available callback plugins using ansible-doc -t callback -l and their respective documentation using ansible-doc -t callback <plugin name>
Source documentation: https://docs.ansible.com/ansible/2.9/plugins/callback.html
Here is a bug report:
https://github.com/ansible/ansible/issues/27078 - why is ansible's default output not more human readable... stilll?
The possible answers:
[defaults]
nocows = True
# minimal, debug, yaml
stdout_callback = yaml
or:
ANSIBLE_STDOUT_CALLBACK=debug ansible-playbook ....
Another option:
https://blog.alexgittings.com/improving-the-ansible-output-with-anstomlog/
just store it inside ansible/ansible.cfg
➜ tree ansible
ansible
├── ansible.cfg
├── callbacks
│ ├── anstomlog.py
└── playbooks
└── nginx.yaml
ANSIBLE_CONFIG=ansible/ansible.cfg ansible-playbook -u centos --private-key .ssh/key -i `terraform output bastion_ip`, ansible/playbooks/nginx.yaml
I was trying do the following changes, still i did not got the output format of yaml or debug options output properly. Later i found the ansible user configuration pick up it from user's config file. So i changed callbacks at user specific location and it worked.
[automation@ansibleserver ~]$ ansible --version
ansible 2.9.9
config file = /home/automation/ansible.cfg
# Use the YAML callback plugin.
stdout_callback = yaml
# Use the stdout_callback when running ad-hoc commands.
bin_ansible_callbacks = True
So ensure, even though you changed at /etc/ansible/ansible.conf , try at user's config file too to get the good result. instead of yaml , debug also gives good helpful format ( for linux users)
