Update k8s manifests to deploy the home app #1037
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Add an additional ingress route to make the home app reachable. This needed to be in another file so we could have different nginx rewrite rules.
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September 12, 2023 18:38
ian-noaa
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Create a home app using Go & Gin with templated HTML and minimal JS. This PR mimics the style of the original home app as much as possible. However, it updates the UI to use Bootstrap 5. I did add a favicon & a page title as well to make the MATS landing page look more official. I've done a few additional things as they were easy to do now that we have a Go server: - I added a `/health` endpoint to the application so that we can use [automated health checks](https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-startup-probes/) in Kubernetes. - I added some basic Prometheus metrics so we can tell if the app is up and if it's taking longer than expected to respond to users. In the future we may be able to instrument the app links so we can tell how often certain apps are used. Otherwise, we could implement something like Google Analytics to get that info. - Added containerization and CI around the project so we can deploy it. This is intended to slot into our current docker-compose stacks and replace `matsapps/production:mats-http` which is this Go file server: https://github.com/halverneus/static-file-server. Obviously, we could also deploy this in Kubernetes. This PR is stacked on top of #1031 and under #1037.
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Add some k8s manifests so that we can deploy the new home app.
I needed to add a second ingress file to handle rewriting the requests the app receives - in essence, I'm using Nginx to rewrite requests for
/mats-dev/to/. There were some subtleties here with ingress preferring to match requests to paths with longer lengths & the regex capture groups Nginx rewrite-target needs artificially inflating the char "length" of the path.I've duplicated the changes to
gsl-devto thelocalsetup as well.PR stacked on top of #1032