Add a new key-value to a json file using Ansible

Question

I\'m using Ansible to automate some configuration steps for my application VM, but having difficult to insert a new key-value to an existing json file on the remote host.

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Answer 1

ilias-sp's solution is great!

In my case, it lacked the case when we may have to create a base json file. So I had to add this task in the beginning of the play:

- name: Ensure json file exists
copy:
  content: "{}"
  dest: /tmp/var.json
  force: false