---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: arrproxy-oauth2
  namespace: arrstack
  annotations:
    argocd.argoproj.io/sync-wave: "2"
    configmap.reloader.stakater.com/auto: "true"
    secret.reloader.stakater.com/reload: "oauth-credentials,vault-ca-cert"
spec:
  replicas: 2
  selector:
    matchLabels:
      app: arrproxy-oauth2
  strategy:
    rollingUpdate:
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: arrproxy-oauth2
    spec:
      serviceAccountName: default
      automountServiceAccountToken: false
      securityContext:
        runAsNonRoot: true
        runAsUser: 65532
        runAsGroup: 65532
        fsGroup: 65532
        seccompProfile:
          type: RuntimeDefault
      initContainers:
        # identity.unkin.net serves a Vault-PKI cert; combine the system roots
        # with the internal CA so oauth2-proxy's OIDC HTTP client trusts it.
        - name: combine-certs
          image: docker.io/library/alpine:3
          imagePullPolicy: IfNotPresent
          command:
            - sh
            - -c
            - cat /etc/ssl/certs/ca-certificates.crt /custom-ca/ca.crt > /combined-certs/ca-certificates.crt
          volumeMounts:
            - name: vault-ca-cert
              mountPath: /custom-ca
              readOnly: true
            - name: combined-certs
              mountPath: /combined-certs
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            capabilities:
              drop:
                - ALL
          resources:
            requests:
              cpu: 50m
              memory: 32Mi
            limits:
              cpu: 200m
              memory: 64Mi
      containers:
        - name: oauth2-proxy
          image: quay.io/oauth2-proxy/oauth2-proxy:v7.15.3
          imagePullPolicy: IfNotPresent
          ports:
            - containerPort: 4180
              name: http
              protocol: TCP
          envFrom:
            - configMapRef:
                name: arrproxy-oauth2-env
                optional: false
          env:
            - name: OAUTH2_PROXY_CLIENT_ID
              valueFrom:
                secretKeyRef:
                  name: oauth-credentials
                  key: client_id
            - name: OAUTH2_PROXY_CLIENT_SECRET
              valueFrom:
                secretKeyRef:
                  name: oauth-credentials
                  key: client_secret
            - name: OAUTH2_PROXY_COOKIE_SECRET
              valueFrom:
                secretKeyRef:
                  name: oauth-credentials
                  key: cookie_secret
          volumeMounts:
            - name: combined-certs
              mountPath: /etc/ssl/combined
              readOnly: true
          livenessProbe:
            httpGet:
              path: /ping
              port: http
            initialDelaySeconds: 10
            periodSeconds: 30
            timeoutSeconds: 5
            failureThreshold: 3
          readinessProbe:
            httpGet:
              path: /ready
              port: http
            initialDelaySeconds: 5
            periodSeconds: 10
            timeoutSeconds: 5
            failureThreshold: 3
          securityContext:
            allowPrivilegeEscalation: false
            readOnlyRootFilesystem: true
            capabilities:
              drop:
                - ALL
          resources:
            requests:
              cpu: 50m
              memory: 64Mi
            limits:
              cpu: 500m
              memory: 256Mi
      volumes:
        - name: vault-ca-cert
          secret:
            secretName: vault-ca-cert
            items:
              - key: ca.crt
                path: ca.crt
        - name: combined-certs
          emptyDir: {}
      restartPolicy: Always
