rust-web-server 18.4.0

Single-binary web server and reverse proxy: automatic HTTPS (Let's Encrypt), HTTP/1.1, HTTP/2 and HTTP/3, load balancing, auth and rate limiting, configured in one TOML file. Also a Rust library: routing, middleware, MCP server, ORM, background jobs. No hyper, no Tower; HTTP/2 and HTTP/3 framing via h2 and quinn.
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# Values for the Prometheus Adapter chart that serve the custom metric the
# rws chart's HPA scales on (autoscaling.customMetric):
#
#   helm install prometheus-adapter prometheus-community/prometheus-adapter \
#     -n monitoring -f helm/prometheus-adapter-values.yaml
#
# rws exports the counter rws_requests_total at GET /metrics; this rule
# exposes its per-pod rate as rws_requests_per_second in the custom metrics
# API (custom.metrics.k8s.io). Check it with:
#   kubectl get --raw "/apis/custom.metrics.k8s.io/v1beta1/namespaces/default/pods/*/rws_requests_per_second"
prometheus:
  # Where your Prometheus is; the scraped series need namespace and pod
  # labels (the annotation-based kubernetes-pods job and ServiceMonitors add them).
  url: http://prometheus-server.monitoring.svc
  port: 80

rules:
  default: false
  custom:
    - seriesQuery: 'rws_requests_total{namespace!="",pod!=""}'
      resources:
        overrides:
          namespace: {resource: namespace}
          pod: {resource: pod}
      name:
        matches: "^rws_requests_total$"
        as: "rws_requests_per_second"
      metricsQuery: 'sum(rate(<<.Series>>{<<.LabelMatchers>>}[2m])) by (<<.GroupBy>>)'