pass the cmd.run stdout to variable

[vummitimohan]

Hi All,

I need some help in assigning the result (std output) of cmd.run module to a variable in state file and also I need some help in calling a variable from inside of an if condition to out side of it

exp:
test:
cmd.run:
- name: "df -hT"
I want the std out of above to a variable

also I need some help in

{% set node = salt'pillar.get' %}
{% if node == grains.host %}

{% set data = '123 %}

{% endif %}

test_1:
cmd.run:
- name: echo {{ data }}

[whytewolf]

so, for your first question, you use the module cmd.run not the state if it is happening in a state it is already too late to be in the jinja. and please. in the future use markdown to clarify and code like snippets.

{% set df = salt["cmd.run"]("df -hT") %}

as for the second question. it already works that way.

root@salt00:/srv/salt/tests# salt-call slsutil.renderer salt://tests/ifscope.sls default_renderer=jinja
local:
    node123
root@salt00:/srv/salt/tests# cat ifscope.sls
{% set node = '123' -%}
{% if node == '123' -%}
{%set data = 'node123' -%}
{%endif -%}

{{data}}

you need to make sure your if statement is actually true of coarse.

[whytewolf]

one final thing. about the first question. I would look for a module that handles that data cleaner then the cmd.run first. such as the status module or some other module. that might beable to pick up the information. cmd.run in jinja can be messy.

[vummitimohan]

thanks for the response

This is my sls file
{% set master_nodes = salt'pillar.get' %}
{% set master_node = master_nodes[0] %}

{% if grains.host == master_node %}

{% set token = salt['cmd.run']('/usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s node') %}

{% endif %}

{% if grains.host != master_node %}

add_node:
cmd.run:
- name: echo -e 'y' | /usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token {{ token }}
- order: -1

{% endif %}

and I am getting this error

- Rendering SLS 'base:es8_1' failed: Jinja variable 'token' is undefined; line 14
  
  ---
  [...]
  
  {% if grains.host != master_node %}
  
  add_node:
    cmd.run:
      - name: echo -e 'y' | /usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token {{ token }}    <======================
      - order: -1
  
  {% endif %}
  ---

[ERROR ] Rendering exception occurred
Traceback (most recent call last):
File "/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/templates.py", line 469, in render_jinja_tmpl
output = template.render(**decoded_context)
File "/opt/saltstack/salt/lib/python3.10/site-packages/jinja2/environment.py", line 1304, in render
self.environment.handle_exception()
File "/opt/saltstack/salt/lib/python3.10/site-packages/jinja2/environment.py", line 939, in handle_exception
raise rewrite_traceback_stack(source=source)
File "", line 14, in top-level template code
jinja2.exceptions.UndefinedError: 'token' is undefined

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/templates.py", line 210, in render_tmpl
output = render_str(tmplstr, context, tmplpath)
File "/opt/saltstack/salt/lib/python3.10/site-packages/salt/utils/templates.py", line 475, in render_jinja_tmpl
raise SaltRenderError(f"Jinja variable {exc}{out}", line, tmplstr)
salt.exceptions.SaltRenderError: Jinja variable 'token' is undefined; line 14

---

[...]

{% if grains.host != master_node %}

add_node:
cmd.run:
- name: echo -e 'y' | /usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token {{ token }} <======================
- order: -1

{% endif %}

[CRITICAL] Rendering SLS 'base:es8_1' failed: Jinja variable 'token' is undefined; line 14

---

[...]

{% if grains.host != master_node %}

add_node:
cmd.run:
- name: echo -e 'y' | /usr/share/elasticsearch/bin/elasticsearch-reconfigure-node --enrollment-token {{ token }} <======================
- order: -1

{% endif %}
I am using salt-ssh

also I am facing another issue here, I have set the order -1 for add_node function but its getting executed first some times