whereami app for GKE networking examples about kubernetes-engine-samples HOT 4 CLOSED

The fields have been updated a bit lately - a sample (current) response:

{"cluster_name":"ph-demo-01","host_header":"hello","node_name":"gke-ph-demo-01-default-pool-2259626e-qqxj.c.alexmattson-scratch.internal","pod_ip":"10.48.2.24","pod_name":"whereami-7566845f96-l5klw","pod_name_emoji":"💔","pod_namespace":"default","pod_service_account":"whereami-ksa","project_id":"alexmattson-scratch","timestamp":"2020-07-14T04:03:49","version":"1.0","zone":"us-central1-f"}

It uses a bunch of data sources in its response, like host headers, K8s downstream API, etc. Per a GOOG coworker's request, I added a feature flag to contact a downstream JSON service to include its response in the reply, which can be demo'ed using Kustomize via the overlay directory in the repo. As the name suggests, it's GKE-centric.

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I added the emoji bit to hash the pod_name so you have a consistent visual representation of which pod you're talking to.

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The code is now pushed to this repo via #132 and #133. Once @theemadnes is able to get the image into the google-samples GCR we can close this issue. Thanks for all the help @askmeegs !

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Pushed #134 to include header reflection.

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