apiVersion: v1
kind: Namespace
metadata:
  name: auth-proxy
---
apiVersion: v1
kind: Secret
metadata:
  name: auth-proxy
  namespace: auth-proxy
  annotations:
    kube-1password: mr6spkkx7n3memkbute6ojaarm
    kube-1password/vault: Kubernetes
type: Opaque
---
apiVersion: v1
kind: Secret
metadata:
  name: tailscale-auth
  namespace: auth-proxy
  annotations:
    kube-1password: 2cqycmsgv5r7vcyvjpblcl2l4y
    kube-1password/vault: Kubernetes
type: Opaque
---

apiVersion: v1
kind: Secret
metadata:
  name: tailscale-auth-proxy
type: Opaque
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: tailscale-auth-proxy
  labels:
    app.kubernetes.io/name: tailscale
---
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
  name: tailscale-auth-proxy
  labels:
    app.kubernetes.io/name: tailscale
subjects:
- kind: ServiceAccount
  name: "tailscale-auth-proxy"
roleRef:
  kind: Role
  name: tailscale-auth-proxy
  apiGroup: rbac.authorization.k8s.io
---
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
  name: tailscale-auth-proxy
  labels:
    app.kubernetes.io/name: tailscale
rules:
- apiGroups: [""]
  resources: ["secrets"]
  verbs: ["create"]
- apiGroups: [""]
  resourceNames: ["tailscale-auth-proxy"]
  resources: ["secrets"]
  verbs: ["get", "update"]
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: auth-proxy
  namespace: auth-proxy
  labels:
    app: auth-proxy
  annotations:
    secret.reloader.stakater.com/reload: "tailscale-auth"
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: auth-proxy
  template:
    metadata:
      labels:
        app: auth-proxy
    spec:
      serviceAccountName: tailscale-auth-proxy
      dnsPolicy: ClusterFirst
      dnsConfig:
        nameservers:
          - 100.100.100.100
      initContainers:
      - name: sysctler
        image: busybox
        securityContext:
          privileged: true
        command: ["/bin/sh"]
        args:
          - -c
          - |
            sysctl -w net.ipv4.ip_forward=1
            sysctl -w net.ipv6.conf.all.forwarding=1
            sysctl -w net.ipv6.conf.all.disable_ipv6=0
        resources:
          requests:
            cpu: 1m
            memory: 1Mi
      containers:
      - name: oauth-proxy
        image: quay.io/oauth2-proxy/oauth2-proxy:v7.6.0
        args:
        - --cookie-secure=false
        - --provider=oidc
        - --provider-display-name=Auth0
        - --upstream=http://talos.averagemarcus.github.beta.tailscale.net
        - --http-address=0.0.0.0:8080
        - --email-domain=*
        - --pass-basic-auth=false
        - --pass-access-token=false
        - --oidc-issuer-url=https://marcusnoble.eu.auth0.com/
        - --cookie-secret=KDGD6rrK6cBmryyZ4wcJ9xAUNW9AQNFT
        - --cookie-expire=336h0m0s
        env:
        - name: HOST_IP
          valueFrom:
            fieldRef:
              apiVersion: v1
              fieldPath: status.podIP
        - name: OAUTH2_PROXY_CLIENT_ID
          valueFrom:
            secretKeyRef:
              key: username
              name: auth-proxy
        - name: OAUTH2_PROXY_CLIENT_SECRET
          valueFrom:
            secretKeyRef:
              key: password
              name: auth-proxy
        ports:
        - containerPort: 8080
          protocol: TCP
        resources:
          limits:
            memory: 50Mi
          requests:
            memory: 50Mi
      - name: tailscale
        image: ghcr.io/tailscale/tailscale:v1.61
        imagePullPolicy: Always
        env:
        - name: TS_AUTH_KEY
          valueFrom:
            secretKeyRef:
              name: tailscale-auth
              key: password
        - name: TS_KUBE_SECRET
          value: tailscale-auth-proxy
        - name: TS_ACCEPT_DNS
          value: "true"
        - name: TS_EXTRA_ARGS
          value: "--hostname=auth-proxy-oauth2"
        securityContext:
          capabilities:
            add:
            - NET_ADMIN
        command:
        - sh
        - -c
        - |
          export PATH=$PATH:/tailscale/bin
          if [[ ! -d /dev/net ]]; then mkdir -p /dev/net; fi
          if [[ ! -c /dev/net/tun ]]; then mknod /dev/net/tun c 10 200; fi
          echo "Starting tailscaled"
          tailscaled --state=kube:${TS_KUBE_SECRET} --socket=/tmp/tailscaled.sock &
          PID=$!
          echo "Running tailscale up"
          tailscale --socket=/tmp/tailscaled.sock up \
            --accept-dns=${TS_ACCEPT_DNS} \
            --authkey=${TS_AUTH_KEY} \
            ${TS_EXTRA_ARGS}
          echo "Re-enabling incoming traffic from the cluster"
          wait ${PID}
---
apiVersion: v1
kind: Service
metadata:
  name: auth-proxy
  namespace: auth-proxy
  labels:
    app: auth-proxy
spec:
  ports:
  - name: http
    port: 80
    protocol: TCP
    targetPort: 8080
  selector:
    app: auth-proxy
  type: ClusterIP