apiVersion: v1
kind: Namespace
metadata:
  name: ingress-shim
  annotations:
    wildcard-tls.kn8v.com/copy: "true"
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: "haproxy-server"
  namespace: "ingress-shim"
data:
  haproxy.cfg: |
    global
        log stdout format raw local0
        stats timeout 30s
        user haproxy
        group haproxy

    defaults
        log        global
        mode        http
        option        httplog
        option        dontlognull
        balance source
        timeout connect 5000
        timeout client  50000
        timeout server  50000
        http-reuse never
        option disable-h2-upgrade

    frontend http80
        bind *:80
        http-request capture req.hdr(Host) len 255
        http-request redirect scheme https

    frontend https443
        bind *:443 ssl crt /ssl-tmp/tls.pem
        http-request capture req.hdr(Host) len 255
        http-request set-header X-Forwarded-Proto https
        http-response replace-value Location http(://.*[.]werts[.]us/.*) https\1
        http-response replace-value Location http(://.*[.]strudelline[.]net/.*) https\1
        default_backend httpnodes

    frontend rtmp1935
        bind *:1935
        mode tcp
        default_backend wertube1935

    frontend proxy4443
        bind *:4443 ssl crt /ssl-tmp/tls.pem accept-proxy
        http-request capture req.hdr(Host) len 255
        http-request set-header X-Forwarded-Proto https
        http-response replace-value Location http(://.*[.]werts[.]us/.*) https\1
        http-response replace-value Location http(://.*[.]strudelline[.]net/.*) https\1
        default_backend httpnodes

    backend wertube1935
        mode tcp
        balance leastconn
        server s1 peertube-werts.peertube-werts.svc:1935 check

    backend httpnodes
        option forwardfor
        #server s1 istio-ingressgateway.istio-system.svc.cluster.local:443 check ssl verify none
        #server s2 172.16.17.5:443 check ssl verify none
        # USE THE FRONTING PROXY PORT IN HAPROXY-INGRESS
        server s1 172.16.17.82:81 check

    frontend stats
        mode http
        option httplog
        bind *:8404
        http-request capture req.hdr(X-Forwarded-For) len 64
        http-request capture req.hdr(Host) len 255
        stats enable
        stats uri /
        stats refresh 10s
        stats admin if LOCALHOST
---
# This is a daemonset so that we can use local traffic policies.
# The whole point of this pod is to gather and preserve client IPs
# so local traffic policies are a must (kube-proxy will change the
# origin IP).
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: "haproxy-server"
  namespace: "ingress-shim"
  annotations: 
    "reloader.stakater.com/auto": "true"
spec:
  selector:
    matchLabels:
      app: "haproxy-server"
  template:
    metadata:
      labels:
        app: "haproxy-server"
    spec:
      terminationGracePeriodSeconds: 0
      initContainers:
        - name: combine-certs
          command: ["bash", "-c"]
          args:
            - |
              cat /ssl/tls.crt /ssl/tls.key > /ssl-tmp/tls.pem
          image: debian:11
          volumeMounts:
            - mountPath: /ssl
              name: ssl
            - mountPath: /ssl-tmp
              name: ssl-tmp
      containers:
        - image: haproxy:latest
          name: haproxy
          volumeMounts:
            - mountPath: /usr/local/etc/haproxy/haproxy.cfg
              name: config
              subPath: haproxy.cfg
            - mountPath: /ssl
              name: ssl
            - mountPath: /ssl-tmp
              name: ssl-tmp
          ports:
            - containerPort: 80
              name: http
              protocol: TCP
            - containerPort: 443
              name: https
              protocol: TCP
            - containerPort: 1935
              name: rtmp
              protocol: TCP
            - containerPort: 4443
              name: proxys
              protocol: TCP
            - containerPort: 8404
              name: stats
              protocol: TCP
      restartPolicy: Always
      volumes:
        - name: config
          configMap:
            name: "haproxy-server"
        - name: ssl
          secret:
            secretName: wildcard-tls
            optional: false
        - name: ssl-tmp
          emptyDir:
            medium: Memory
            sizeLimit: 5Mi
---
apiVersion: v1
kind: Service
metadata:
  name: "haproxy-server"
  namespace: "ingress-shim"
  annotations:
    metallb.universe.tf/allow-shared-ip: 172.16.17.80
    metallb.universe.tf/loadBalancerIPs: 172.16.17.80
spec:
  allocateLoadBalancerNodePorts: true
  # PRESERVE CLIENT IPS!  THIS IS THE WHOLE POINT!
  externalTrafficPolicy: Local
  internalTrafficPolicy: Local
  ipFamilies:
    - IPv4
  ipFamilyPolicy: SingleStack
  ports:
    - name: http-80
      port: 80
      protocol: TCP
      targetPort: http
    - name: rtmp-1935
      port: 1935
      protocol: TCP
      targetPort: rtmp
    - name: https-443
      port: 443
      protocol: TCP
      targetPort: https
    - name: https-4443
      port: 4443
      protocol: TCP
      targetPort: proxys
    - name: https-8404
      port: 8404
      protocol: TCP
      targetPort: stats
  selector:
    app: "haproxy-server"
  type: LoadBalancer