# services/hermes/oauth2-proxy.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: hermes-operator-allowlist
  namespace: hermes
data:
  allowed-emails: |
    brad@bstein.dev
---
apiVersion: v1
kind: Service
metadata:
  name: oauth2-proxy-hermes
  namespace: hermes
  labels:
    app: oauth2-proxy-hermes
spec:
  selector:
    app: oauth2-proxy-hermes
  ports:
    - name: http
      port: 80
      targetPort: http
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: oauth2-proxy-hermes
  namespace: hermes
  labels:
    app: oauth2-proxy-hermes
spec:
  replicas: 1
  revisionHistoryLimit: 2
  selector:
    matchLabels:
      app: oauth2-proxy-hermes
  template:
    metadata:
      labels:
        app: oauth2-proxy-hermes
      annotations:
        vault.hashicorp.com/agent-inject: "true"
        vault.hashicorp.com/agent-pre-populate-only: "true"
        vault.hashicorp.com/role: hermes
        vault.hashicorp.com/agent-inject-secret-oidc-config: kv/data/atlas/hermes/operator-oidc
        vault.hashicorp.com/agent-inject-template-oidc-config: |
          {{- with secret "kv/data/atlas/hermes/operator-oidc" -}}
          client_id = "{{ .Data.data.client_id }}"
          client_secret = "{{ .Data.data.client_secret }}"
          cookie_secret = "{{ .Data.data.cookie_secret }}"
          {{- end -}}
    spec:
      serviceAccountName: hermes-vault
      automountServiceAccountToken: true
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: kubernetes.io/arch
                    operator: In
                    values:
                      - arm64
                  - key: node-role.kubernetes.io/worker
                    operator: In
                    values:
                      - "true"
                  - key: kubernetes.io/hostname
                    operator: NotIn
                    values:
                      - titan-13
                      - titan-15
                      - titan-17
                      - titan-18
                      - titan-19
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 90
              preference:
                matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi5
            - weight: 50
              preference:
                matchExpressions:
                  - key: hardware
                    operator: In
                    values:
                      - rpi4
      containers:
        - name: oauth2-proxy
          image: quay.io/oauth2-proxy/oauth2-proxy:v7.6.0@sha256:dcb6ff8dd21bf3058f6a22c6fa385fa5b897a9cd3914c88a2cc2bb0a85f8065d
          imagePullPolicy: IfNotPresent
          args:
            - --provider=oidc
            - --config=/vault/secrets/oidc-config
            - --redirect-url=https://agent.bstein.dev/oauth2/callback
            - --oidc-issuer-url=https://sso.bstein.dev/realms/atlas
            - --code-challenge-method=S256
            - --scope=openid profile email
            - --email-domain=*
            - --authenticated-emails-file=/etc/oauth2-proxy/allowed-emails
            - --set-xauthrequest=true
            - --session-cookie-minimal=true
            - --cookie-secure=true
            - --cookie-samesite=lax
            - --cookie-refresh=0
            - --cookie-expire=8h
            - --upstream=http://hermes.hermes.svc.cluster.local:9119
            - --http-address=0.0.0.0:4180
            - --skip-provider-button=true
            - --skip-jwt-bearer-tokens=true
            - --cookie-domain=agent.bstein.dev
            - --reverse-proxy=true
          ports:
            - name: http
              containerPort: 4180
          readinessProbe:
            httpGet:
              path: /ping
              port: http
            initialDelaySeconds: 5
            periodSeconds: 10
          livenessProbe:
            httpGet:
              path: /ping
              port: http
            initialDelaySeconds: 20
            periodSeconds: 20
          securityContext:
            allowPrivilegeEscalation: false
            capabilities:
              drop:
                - ALL
            readOnlyRootFilesystem: true
            runAsNonRoot: true
            seccompProfile:
              type: RuntimeDefault
          resources:
            requests:
              cpu: 25m
              memory: 64Mi
            limits:
              cpu: 250m
              memory: 256Mi
          volumeMounts:
            - name: allowlist
              mountPath: /etc/oauth2-proxy
              readOnly: true
            - name: tmp
              mountPath: /tmp
      volumes:
        - name: allowlist
          configMap:
            name: hermes-operator-allowlist
        - name: tmp
          emptyDir:
            sizeLimit: 64Mi