Liveness, Readiness, and Startup probes for kubernetes

[tyfoster97]

Is your feature request related to a problem?

When setting up a k8s deployment I wanted to ensure that the server is running. Was able to find the command in the Dockerfile, but k8s does not respect the Dockerfile HEALTHCHECK and instead neads probes configured

Describe the solution you'd like

Liveness, Startup, and Readiness probes that use the "pgrep "PalServer-Linux" > /dev/null || exit 1" or a script in the container image that can be used instead

Describe alternatives you've considered

I have manually configured these

Additional context

Useful for people using k8s as people using docker get the healthcheck for free from the container image

Feature Report Checklist

• I am willing to implement this feature
• probes configured in k8s example deployment
• OPTIONAL: script to run healthcheck command for ease of use