Using Ansible with IAP tunneling returns [Errno -3] Temporary failure in name resolution

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Hello,

I am trying to run ansible playbooks using IAP tunneling to connect to my virtual machines on GCP that do not have external IP addresses. But, I am having this error :
test-vm-ee64a2421adb46ba-1 | UNREACHABLE! => { “changed”: false, “msg”: “[Errno -3] Temporary failure in name resolution”, “unreachable”: true }

In fact I followed the steps given in this link : https://stackoverflow.com/questions/58996471/ansible-gcp-iap-tunnel

I am not sure If I understood what’s happening, but, apparently, Ansible ignores the ssh_executable that I added in ansible.cfg, I don’t think that the wrapper that runs the command gcloud compute ssh “hostname” is ever executed. I don’t know the reason.
Can someone help please ?