{{/*
Copyright 2018 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.
*/}}

{{/*
These local.* templates may be moved out of this chart into helm-toolkit
in the future if there is desire to generalize this pattern. Otherwise
in the future they will be moved into a separate helpers file.
*/}}

{{- define "local.tls_volume_name" -}}
{{- $group := index . 0 -}}
{{- $type := index . 1 -}}
tls-{{ $group | replace "_" "-" }}-{{ $type | replace "_" "-" }}
{{- end -}}

{{- define "local.attach_all_bundles" }}
{{- $envAll := . }}
{{- range $group, $certs := $envAll.Values.certificates }}
{{- range $type, $bundle := . }}
{{ tuple $group $type $envAll | include "local.attach_cert_bundle" }}
{{- end }}
{{- end }}
{{- end }}

{{- define "local.attach_cert_bundle" }}
{{- $group := index . 0 }}
{{- $type := index . 1 }}
{{- $envAll := index . 2 }}
- name: {{ tuple $group  $type | include "local.tls_volume_name" }}
  secret:
    secretName: {{ tuple $group $type $envAll | include "local.tls_secret_name" }}
    defaultMode: 0444
{{ end }}

{{- define "local.mount_all_bundles" }}
{{- $basepath := index . 0 }}
{{- $envAll := index . 1 }}
{{- range $group, $certs := $envAll.Values.certificates }}
{{- range $type, $bundle := . }}
{{ tuple $group $type $basepath $envAll | include "local.mount_cert_bundle" }}
{{- end }}
{{- end }}
{{- end }}

{{- define "local.mount_cert_bundle" }}
{{- $group := index . 0 }}
{{- $type := index . 1 }}
{{- $basepath := index . 2 }}
{{- $envAll := index . 3 }}
{{- $bundle := index $envAll.Values "certificates" $group $type }}
{{- range tuple "ca" "cert" "key" }}
{{- if hasKey $bundle . }}
{{ tuple $group $type . $basepath $envAll | include "local.mount_cert_file" }}
{{- end }}
{{- end }}
{{- end }}

{{- define "local.mount_cert_file" }}
{{- $group := index . 0 }}
{{- $type := index . 1 }}
{{- $member := index . 2 }}
{{- $basepath := index . 3 }}
{{- $envAll := index . 4 }}
- name: {{ tuple $group  $type | include "local.tls_volume_name" }}
  mountPath: {{ tuple $group $type $basepath $member $envAll | include "local.cert_bundle_path" }}
{{- if eq $member "ca" }}
  subPath: ca.crt
{{- else if eq $member "cert" }}
  subPath: tls.crt
{{- else if eq $member "key" }}
  subPath: tls.key
{{- end }}
  readOnly: true
{{- end }}

{{- define "local.cert_bundle_path" -}}
{{- $group := index . 0 -}}
{{- $type := index . 1 -}}
{{- $basepath := index . 2 -}}
{{- $member := index . 3 -}}
{{- $envAll := index . 4 -}}
{{ $basepath }}/{{ $group }}-{{ $type }}-{{ $member }}.pem
{{- end -}}

{{- if .Values.manifests.deployment }}
{{- $mounts_apiserver := .Values.pod.mounts.apiserver_webhook.apiserver }}
{{- $mounts_webhook := .Values.pod.mounts.apiserver_webhook.webhook }}
{{- $envAll := . }}
{{- $labels := tuple $envAll "kubernetes-keystone-webhook" "api" | include "helm-toolkit.snippets.kubernetes_metadata_labels" -}}
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ .Release.Name }}-apiserver-webhook
  labels:
{{ $labels | indent 4 }}
  annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 4 }}
spec:
  replicas: {{ $envAll.Values.pod.replicas.api }}
  selector:
    matchLabels:
{{ $labels | indent 6 }}
  template:
    metadata:
      labels:
{{ $labels | indent 8 }}
      annotations:
{{ tuple $envAll | include "helm-toolkit.snippets.release_uuid" | indent 8 }}
{{ dict "envAll" $envAll "podName" "apiserver-webhook" "containerNames" (list "apiserver" "webhook") | include "helm-toolkit.snippets.kubernetes_mandatory_access_control_annotation" | indent 8 }}
        configmap-bin-hash: {{ tuple "configmap-bin.yaml" . | include "helm-toolkit.utils.hash" }}
        configmap-etc-hash: {{ tuple "configmap-etc.yaml" . | include "helm-toolkit.utils.hash" }}
        dynamic-config-hash: {{ tuple "config-dynamic-config.yaml" . | include "helm-toolkit.utils.hash" }}
    spec:
      nodeSelector:
        {{ .Values.labels.kubernetes_apiserver.node_selector_key }}: {{ .Values.labels.kubernetes_apiserver.node_selector_value }}
      affinity:
{{ tuple $envAll "kubernetes-keystone-webhook" "api" | include "helm-toolkit.snippets.kubernetes_pod_anti_affinity" | indent 8 }}
      dnsPolicy: ClusterFirst
{{ dict "envAll" $envAll "application" "apiserver_webhook" | include "helm-toolkit.snippets.kubernetes_pod_security_context" | indent 6 }}
      containers:
        - name: apiserver
          image: {{ .Values.images.tags.apiserver }}
{{ tuple $envAll $envAll.Values.pod.resources.kubernetes_apiserver | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
{{ dict "envAll" $envAll "application" "apiserver_webhook" "container" "apiserver" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          env:
            - name: POD_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
            - name: NODENAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
{{ include "helm-toolkit.utils.to_k8s_env_vars" .Values.pod.env.apiserver | indent 12 }}
          command:
            {{- range .Values.command_prefix }}
            - {{ . }}
            {{- end }}
            {{- if $envAll.Values.apiserver_webhook.logging.log_level }}
            - --v={{ $envAll.Values.apiserver_webhook.logging.log_level }}
            {{- end }}
            - --service-cluster-ip-range={{ $envAll.Values.network.service_cidr }}
            - --authorization-mode=Webhook
            - --advertise-address=$(POD_IP)
            - --anonymous-auth=false
            - --endpoint-reconciler-type=none
            - --bind-address=$(POD_IP)
            - --secure-port={{ tuple "webhook_apiserver" "podport" "api" $envAll | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
            - --tls-cert-file={{ tuple "apiserver_webhook_pod" "server" $envAll.Values.conf.paths.pki "cert" $envAll | include "local.cert_bundle_path" }}
            - --tls-private-key-file={{ tuple "apiserver_webhook_pod" "server" $envAll.Values.conf.paths.pki "key" $envAll | include "local.cert_bundle_path" }}
            - --kubelet-preferred-address-types=InternalIP,ExternalIP,Hostname
            - --kubelet-certificate-authority={{ tuple "kubelet" "server" $envAll.Values.conf.paths.pki "ca" $envAll | include "local.cert_bundle_path" }}
            - --kubelet-client-certificate={{ tuple "kubelet" "client" $envAll.Values.conf.paths.pki "cert" $envAll | include "local.cert_bundle_path" }}
            - --kubelet-client-key={{ tuple "kubelet" "client" $envAll.Values.conf.paths.pki "key" $envAll | include "local.cert_bundle_path" }}
            - --etcd-servers={{ tuple "etcd" "internal" "client" . | include "helm-toolkit.endpoints.keystone_endpoint_uri_lookup" }}
            - --etcd-cafile={{ tuple "etcd" "server" $envAll.Values.conf.paths.pki "ca" $envAll | include "local.cert_bundle_path" }}
            - --etcd-certfile={{ tuple "etcd" "client" $envAll.Values.conf.paths.pki "cert" $envAll | include "local.cert_bundle_path" }}
            - --etcd-keyfile={{ tuple "etcd" "client" $envAll.Values.conf.paths.pki "key" $envAll | include "local.cert_bundle_path" }}
            - --allow-privileged=true
            - --service-account-key-file={{ $envAll.Values.conf.paths.sapubkey }}
            - --service-account-signing-key-file={{ $envAll.Values.conf.paths.saprivkey }}
            - --authentication-token-webhook-config-file={{ $envAll.Values.conf.paths.conf }}
            - --authorization-webhook-config-file={{ $envAll.Values.conf.paths.conf }}
            {{- range $key, $val := .Values.conf.apiserver }}
            {{- if hasKey $val "command_options" }}
            {{- range $val.command_options }}
            - {{ . }}
            {{- end }}
            {{- end }}
            {{- end }}
          readinessProbe:
            tcpSocket:
              port: {{ tuple "webhook_apiserver" "podport" "api" $envAll | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
{{ $envAll.Values.pod.probes.readinessProbe | toYaml | indent 12 }}
          livenessProbe:
            tcpSocket:
              port: {{ tuple "webhook_apiserver" "podport" "api" $envAll | include "helm-toolkit.endpoints.endpoint_port_lookup" }}
{{ $envAll.Values.pod.probes.livenessProbe | toYaml | indent 12 }}
          volumeMounts:
            - name: etc-apiserver
              mountPath: {{ $envAll.Values.conf.paths.base }}
            - name: apiserver-dynamic-config
              mountPath: {{ $envAll.Values.conf.paths.base }}dynamic
              readOnly: true
            - name: etc-apiserver-pki
              mountPath: {{ $envAll.Values.conf.paths.pki }}
            - name: configmap-etc
              mountPath: {{ $envAll.Values.conf.paths.sapubkey }}
              subPath: service-account.pub
              readOnly: true
            - name: secrets-etc
              mountPath: {{ $envAll.Values.conf.paths.saprivkey }}
              subPath: service-account.key
              readOnly: true
            - name: configmap-etc
              mountPath: {{ $envAll.Values.conf.paths.conf }}
              subPath: webhook.kubeconfig
              readOnly: true
            - name: configmap-etc
              mountPath: {{ $envAll.Values.conf.paths.encryption_provider }}
              subPath: encryption_provider.json
              readOnly: true
{{ tuple "keystone_webhook" "server" "ca" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_file" | indent 12 }}
{{ tuple "apiserver_webhook_pod" "server" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ tuple "kubelet" "server" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ tuple "kubelet" "client" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ tuple "etcd" "server" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ tuple "etcd" "client" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ if $mounts_apiserver.volumeMounts }}{{ toYaml $mounts_apiserver.volumeMounts | indent 12 }}{{ end }}
        - name: webhook
{{ tuple $envAll "kubernetes_keystone_webhook" | include "helm-toolkit.snippets.image" | indent 10 }}
{{ tuple $envAll $envAll.Values.pod.resources.server | include "helm-toolkit.snippets.kubernetes_resources" | indent 10 }}
{{ dict "envAll" $envAll "application" "apiserver_webhook" "container" "webhook" | include "helm-toolkit.snippets.kubernetes_container_security_context" | indent 10 }}
          command:
            - /tmp/webhook_start.sh
          env:
{{- with $env := dict "ksUserSecret" .Values.secrets.identity.webhook }}
{{- include "helm-toolkit.snippets.keystone_openrc_env_vars" $env | indent 12 }}
{{- end }}
            - name: SERVER_CERT_FILE
              value: {{ tuple "keystone_webhook" "server" $envAll.Values.conf.paths.pki "cert" $envAll | include "local.cert_bundle_path" | quote }}
            - name: SERVER_KEY_FILE
              value: {{ tuple "keystone_webhook" "server" $envAll.Values.conf.paths.pki "key" $envAll | include "local.cert_bundle_path" | quote }}
            - name: POLICY_FILE
              value: {{ $envAll.Values.conf.paths.policy | quote }}
            - name: SERVER_PORT
              value: {{ tuple "webhook_apiserver" "podport" "webhook" $envAll | include "helm-toolkit.endpoints.endpoint_port_lookup" | quote }}
{{- if hasKey .Values.certificates "keystone" }}
            - name: KEYSTONE_CA_FILE
              value: {{ tuple "keystone" "server" $envAll.Values.conf.paths.pki "ca" $envAll | include "local.cert_bundle_path" | quote }}
{{- end }}
          volumeMounts:
            - name: etc-webhook
              mountPath: {{ $envAll.Values.conf.paths.base }}
            - name: etc-webhook-pki
              mountPath: {{ $envAll.Values.conf.paths.pki }}
            - name: configmap-etc
              mountPath: {{ $envAll.Values.conf.paths.policy }}
              subPath: policy.json
              readOnly: true
            - name: configmap-bin
              mountPath: /tmp/webhook_start.sh
              subPath: webhook_start.sh
              readOnly: true
{{ tuple "keystone_webhook" "server" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{ if $mounts_webhook.volumeMounts }}{{ toYaml $mounts_webhook.volumeMounts | indent 12 }}{{ end }}
      volumes:
{{- if hasKey .Values.certificates "keystone" }}
{{ tuple "keystone" "server" $envAll.Values.conf.paths.pki $envAll | include "local.mount_cert_bundle" | indent 12 }}
{{- end }}
{{ include "local.attach_all_bundles" $envAll | indent 8 }}
        - name: etc-apiserver
          emptyDir: {}
        - name: etc-apiserver-pki
          emptyDir: {}
        - name: apiserver-dynamic-config
          configMap:
            name: {{ .Release.Name }}-dynamic-config
            defaultMode: 0444
        - name: etc-webhook
          emptyDir: {}
        - name: etc-webhook-pki
          emptyDir: {}
        - name: configmap-etc
          configMap:
            name: {{ .Release.Name }}-etc
            defaultMode: 0444
        - name: secrets-etc
          secret:
            secretName: {{ .Release.Name }}-keys
            defaultMode: 0444
        - name: configmap-bin
          configMap:
            name: {{ .Release.Name }}-bin
            defaultMode: 0555
        - name: tls-apiserver-webhook-public-server
          secret:
            defaultMode: 292
            secretName: {{ .Values.secrets.tls.webhook_apiserver.api.public }}
{{ if $mounts_apiserver.volumes }}{{ toYaml $mounts_apiserver.volumes | indent 8 }}{{ end }}
{{ if $mounts_webhook.volumes }}{{ toYaml $mounts_webhook.volumes | indent 8 }}{{ end }}
{{- end }}