In ansible playbook, how skip task if file already exist in block task?

Question

I have a task like this :

- name: install jetbrains toolbox
changed_when:
block:
  - name: download toolbox
    get_url:
      url: 'https://download.jetbrains.com/toolbox/jetbrains-toolbox-{{ toolbox_version }}.tar.gz'
      dest: /tmp/toolbox.tar.gz
  - name: open toolbox
    unarchive:
      src: /tmp/toolbox.tar.gz
      dest: /opt/jetbrains-toolbox
args:
  creates: /opt/jetbrains-toolbox

But it yields an error : ERROR! 'changed_when' is not a valid attribute for a Block

How can I skip the download download of /opt/jetbrains-toolbox.tar.gz skip the download if /opt/jetbrains-toolbox is already there ?

See [checksum](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/get_url_module.html#parameter-checksum). — Vladimir Botka, Jun 04 '21 at 20:48

SvenTUM · Accepted Answer · 2021-06-16T14:45:56.163

3

---
- name: register status of /tmp/toolbox.tar.gz
  stat:
    path: /tmp/toolbox.tar.gz
  register: toolbox_path

- name: install jetbrains toolbox
  # check if toolbox_path is a regular file
  when: "not toolbox_path.stat.exists"
  block:
    - name: download toolbox
      get_url:
        url: "https://download.jetbrains.com/toolbox/jetbrains-toolbox-{{ toolbox_version }}.tar.gz"
        dest: /tmp/toolbox.tar.gz

    - name: open toolbox
      unarchive:
        src: /tmp/toolbox.tar.gz
        dest: /opt/jetbrains-toolbox

You might also want to include checksums in the download as you know the exact version you want to download.

edited Jun 16 '21 at 14:45

answered Jun 04 '21 at 21:25

SvenTUM

146
5

They provide a checksum as well. Thanks ill try it, and if it works ill accept your answer – Pierre-Antoine Guillaume Jun 04 '21 at 21:27
The system I'm on isn't properly setup and runs on Windows. I just created a bunch of Linux boxes to test on and the code needed a little fix. I'll edit the post and it should work that way. I changed the condition to `not toolbox_path.stat.exists`. – SvenTUM Jun 04 '21 at 22:05
@Pierre-AntoineGuillaume did it work for you? – SvenTUM Jun 07 '21 at 18:03
Didn't check yet ! looking at this tomorrow – Pierre-Antoine Guillaume Jun 08 '21 at 23:02
@pierre-antoine-guillaume if it worked, please accept the answer; otherwise please note that it didn't – SvenTUM Jun 16 '21 at 06:43
1

it works if I de-indent register: toolbox_path 1 time – Pierre-Antoine Guillaume Jun 16 '21 at 07:42
OK. I fixed that thank you. – SvenTUM Jun 16 '21 at 14:46

In ansible playbook, how skip task if file already exist in block task?

1 Answers1