apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "kubectl-mcp-server.name" . }}
  namespace: {{ .Release.Namespace }}
  labels:
    {{- include "kubectl-mcp-server.labels" . | nindent 4 }}
spec:
  replicas: {{ .Values.replicas }}
  selector:
    matchLabels:
      app: {{ include "kubectl-mcp-server.name" . }}
  template:
    metadata:
      labels:
        app: {{ include "kubectl-mcp-server.name" . }}
        {{- with .Values.labels }}
        {{- toYaml . | nindent 8 }}
        {{- end }}
      annotations:
        {{- if eq .Values.mcp.mode "multi" }}
        checksum/registry: {{ toYaml .Values.federation.clusters | sha256sum }}
        {{- end }}
        {{- with .Values.podAnnotations }}
        {{- toYaml . | nindent 8 }}
        {{- end }}
    spec:
      {{- if .Values.serviceAccount.create }}
      serviceAccountName: {{ include "kubectl-mcp-server.serviceAccountName" . }}
      {{- end }}
      {{- with .Values.podSecurityContext }}
      securityContext:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- if .Values.priorityClassName }}
      priorityClassName: {{ .Values.priorityClassName }}
      {{- end }}
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      containers:
        - name: kubectl-mcp-server
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          # Image ENTRYPOINT is `k8s-rca-mcp`, configured ENTIRELY via env vars
          # (no CLI args). The server registers only an allowlisted read-only
          # toolset — writes are blocked at the app layer and again by RBAC.
          env:
            - name: MCP_MODE
              value: {{ .Values.mcp.mode | quote }}
            - name: MCP_TRANSPORT
              value: {{ .Values.mcp.transport | quote }}
            - name: MCP_HOST
              value: {{ .Values.mcp.host | quote }}
            - name: MCP_PORT
              value: {{ .Values.mcp.port | quote }}
            {{- if .Values.auth.allowAnonymous }}
            - name: MCP_ALLOW_ANONYMOUS
              value: "true"
            {{- end }}
            {{- if eq .Values.mcp.mode "multi" }}
            - name: MCP_CLUSTER_REGISTRY
              value: /etc/k8s-rca-mcp/clusters.yaml
            - name: MCP_FORWARD_TIMEOUT
              value: {{ .Values.federation.forwardTimeout | quote }}
            {{- end }}
          # Bearer tokens come from Vault via the ExternalSecret-synced Secret:
          #   MCP_AUTH_TOKEN (inbound) + each backend's <TOKENENV> (multi mode).
          {{- if or .Values.externalSecrets.enabled .Values.envFrom }}
          envFrom:
            {{- if .Values.externalSecrets.enabled }}
            - secretRef:
                name: {{ include "kubectl-mcp-server.credsSecretName" . }}
            {{- end }}
            {{- with .Values.envFrom }}
            {{- toYaml . | nindent 12 }}
            {{- end }}
          {{- end }}
          ports:
            - name: http
              containerPort: {{ .Values.mcp.port }}
          {{- with .Values.securityContext }}
          securityContext:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          livenessProbe:
            {{- toYaml .Values.livenessProbe | nindent 12 }}
          readinessProbe:
            {{- toYaml .Values.readinessProbe | nindent 12 }}
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
          {{- if eq .Values.mcp.mode "multi" }}
          volumeMounts:
            - name: registry
              mountPath: /etc/k8s-rca-mcp
              readOnly: true
          {{- end }}
      {{- if eq .Values.mcp.mode "multi" }}
      volumes:
        - name: registry
          configMap:
            name: {{ include "kubectl-mcp-server.name" . }}-registry
      {{- end }}