Please roast my resume, not getting any callbacks

Hi Everyone,

A little background about me: I'm from India and I have 8 years of experience in full stack and 3 years of experience in DevOps. I transitioned from development to DevOps at my previous job as I was more interested. I quit my full-time job 6 months ago to try something on my own, but it didn't go as well as I expected, so I had to shut down my product and am now looking for a full-time job again.

To my surprise, I've been applying for the past month but haven't received even a single call from recruiters. Do they see my 6 months as a career gap or is it a red flag?

I don't have Kubernetes experience as my company always insisted on using cloud container orchestration (Cloud Run, Google App Engine). I'm planning to prepare for CKA, but the pressure of being jobless is driving me nuts and I can't really focus on certification at the moment.

I've been applying via LinkedIn but not getting any responses back. Any tips or suggestions?

Here is my resume: https://imgur.com/a/VyAxTfD

Thanks!