chore: remove old web-proxy code

This is no longer used in our infra, and probably should never have
been in this repo anyway

Closes: PluralKit/PluralKit#511

.github/workflows/fly.yml

@@ -1,19 +0,0 @@
-name: Deploy web proxy to Fly.io
-
-on:
-  push:
-    branches: [main]
-    paths:
-      - 'services/web-proxy/**'
-
-env:
-  FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
-
-jobs:
-  deploy:
-      name: Deploy app
-      runs-on: ubuntu-latest
-      steps:
-        - uses: actions/checkout@v2
-        - uses: superfly/flyctl-actions/setup-flyctl@master
-        - run: (cd services/web-proxy && flyctl deploy)

services/web-proxy/Dockerfile

@@ -1,14 +0,0 @@
-FROM alpine:latest as builder
-
-RUN apk add go
-
-WORKDIR /build
-COPY . /build/
-
-RUN go build .
-
-FROM alpine:latest
-
-COPY --from=builder /build/web-proxy /bin/web-proxy
-
-ENTRYPOINT [ "/bin/web-proxy" ]

services/web-proxy/fly.toml

@@ -1,28 +0,0 @@
-app = "pluralkit"
-kill_signal = "SIGTERM"
-kill_timeout = 5
-
-[metrics]
-  port = 9091
-  path = "/metrics"
-
-[deploy]
-  strategy = "bluegreen"
-
-[[services]]
-  internal_port = 8080
-  protocol = "tcp"
-
-  [services.concurrency]
-    hard_limit = 500
-    soft_limit = 400
-    type = "connections"
-
-  [[services.ports]]
-    force_https = true
-    handlers = ["http"]
-    port = 80
-
-  [[services.ports]]
-    handlers = ["tls", "http"]
-    port = 443

services/web-proxy/go.mod

@@ -1,3 +0,0 @@
-module web-proxy
-
-go 1.19

services/web-proxy/main.go

@@ -1,63 +0,0 @@
-package main
-
-import (
-	"context"
-	"log"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-	"time"
-)
-
-func proxyTo(host string) *httputil.ReverseProxy {
-	rp := httputil.NewSingleHostReverseProxy(&url.URL{
-		Scheme:   "http",
-		Host:     host,
-		RawQuery: "",
-	})
-	rp.ModifyResponse = logTimeElapsed
-	return rp
-}
-
-// todo: this shouldn't be in this repo
-var remotes = map[string]*httputil.ReverseProxy{
-	"api.pluralkit.me":     proxyTo("pluralkit-api.flycast:5000"),
-	"dash.pluralkit.me":    proxyTo("pluralkit-compute02._peer.internal:8080"),
-	"sentry.pluralkit.me":  proxyTo("pluralkit-compute02._peer.internal:9000"),
-	"grafana.pluralkit.me": proxyTo("pluralkit-db1._peer.internal:3000"),
-}
-
-type ProxyHandler struct{}
-
-func (p ProxyHandler) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
-	remote, ok := remotes[r.Host]
-	if !ok {
-		// unknown domains redirect to landing page
-		http.Redirect(rw, r, "https://pluralkit.me", http.StatusFound)
-		return
-	}
-
-	r.Header.Del("X-PluralKit-Client-IP")
-	r.Header.Set("X-PluralKit-Client-IP", r.Header.Get("Fly-Client-IP"))
-
-	startTime := time.Now()
-	r = r.WithContext(context.WithValue(r.Context(), "req-time", startTime))
-
-	remote.ServeHTTP(rw, r)
-}
-
-func logTimeElapsed(resp *http.Response) error {
-	r := resp.Request
-
-	startTime := r.Context().Value("req-time").(time.Time)
-
-	elapsed := time.Since(startTime)
-
-	log.Printf("[%s] \"%s %s%s\" %d - %vms %s\n", r.Header.Get("Fly-Client-IP"), r.Method, r.Host, r.URL.Path, resp.StatusCode, elapsed.Milliseconds(), r.Header.Get("User-Agent"))
-
-	return nil
-}
-
-func main() {
-	http.ListenAndServe(":8080", ProxyHandler{})
-}