{{/*
Copyright 2017 The Openstack-Helm Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/}}

{{- if .Values.manifests.daemonset }}
{{- $envAll := . }}

{{- $serviceAccountName := "falcon-service" }}
{{ tuple $envAll "falco" $serviceAccountName | include "helm-toolkit.snippets.kubernetes_pod_rbac_serviceaccount" }}
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: {{ $serviceAccountName }}
rules:
  - apiGroups:
      - extensions
      - ""
    resources:
      - nodes
      - namespaces
      - pods
      - replicationcontrollers
      - services
      - events
      - configmaps
    verbs:
      - get
      - list
      - watch
  - nonResourceURLs:
      - /healthz
      - /healthz/*
    verbs:
      - get
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: {{ $serviceAccountName }}
roleRef:
  kind: ClusterRole
  name: {{ $serviceAccountName }}
  apiGroup: rbac.authorization.k8s.io
subjects:
  - kind: ServiceAccount
    name: {{ $serviceAccountName }}
    namespace: {{ $envAll.Release.Namespace }}
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: falco-agent
  labels:
{{ tuple $envAll "falco" "falco-agent" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
spec:
  selector:
    matchLabels:
{{ tuple $envAll "falco" "falco-agent" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 6 }}
{{ tuple $envAll "falco" | include "helm-toolkit.snippets.kubernetes_upgrades_daemonset" | indent 2 }}
  template:
    metadata:
      labels:
{{ tuple $envAll "falco" "falco-agent" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 8 }}
    spec:
      serviceAccountName: {{ $serviceAccountName }}
{{ tuple $envAll "falco" | include "helm-toolkit.snippets.kubernetes_tolerations" | indent 6 }}
      containers:
        - name: falco
{{ tuple $envAll "falco" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.falco | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
          securityContext:
            privileged: true
          args:
            - /tmp/falco.sh
          volumeMounts:
            - mountPath: /tmp/falco.sh
              name: falco-bin
              subPath: falco.sh
              readOnly: true
            - mountPath: /host/dev
              name: dev-fs
            - mountPath: /host/proc
              name: proc-fs
              readOnly: true
            - mountPath: /host/boot
              name: boot-fs
              readOnly: true
            - mountPath: /host/lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /host/usr
              name: usr-fs
              readOnly: true
            - mountPath: /etc/falco
              name: config-volume
            {{- if .Values.conf.rules.custom_rules }}
            - mountPath: /etc/falco/rules.d
              name: rules-volume
            {{- end }}
      volumes:
        - name: falco-bin
          configMap:
            name: falco-bin
            defaultMode: 0555
        - name: dshm
          emptyDir:
            medium: Memory
        - name: dev-fs
          hostPath:
            path: /dev
        - name: proc-fs
          hostPath:
            path: /proc
        - name: boot-fs
          hostPath:
            path: /boot
        - name: lib-modules
          hostPath:
            path: /lib/modules
        - name: usr-fs
          hostPath:
            path: /usr
        - name: config-volume
          secret:
            secretName: falco
        {{- if .Values.conf.rules.custom_rules }}
        - name: rules-volume
          secret:
            secretName: falco-rules
        {{- end }}
{{- end }}