# 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.

---
apiVersion: apps/v1beta1
kind: StatefulSet
metadata:
  labels:
    app: ceph
    daemon: mon
  name: ceph-mon
spec:
  serviceName: {{ .Values.service.mon.name | quote }}
  replicas: {{ .Values.replicas.mon }}
  template:
    metadata:
      name: ceph-mon
      labels:
        app: ceph
        daemon: mon
      annotations:
        # alanmeadows: this soft requirement allows single
        # host deployments to spawn several ceph-mon
        # containers
        scheduler.alpha.kubernetes.io/affinity: >
          {
            "podAntiAffinity": {
              "preferredDuringSchedulingIgnoredDuringExecution": [{
                "labelSelector": {
                  "matchExpressions": [{
                    "key": "daemon",
                    "operator": "In",
                    "values":["mon"]
                  }]
                },
              "topologyKey": "kubernetes.io/hostname",
              "weight": 10
              }]
            }
          }
    spec:
      nodeSelector:
        {{ .Values.labels.node_selector_key }}: {{ .Values.labels.node_selector_value }}
      serviceAccount: default
      volumes:
        - name: ceph-conf
          secret:
            secretName: ceph-conf-combined
        - name: ceph-bootstrap-osd-keyring
          secret:
            secretName: ceph-bootstrap-osd-keyring
        - name: ceph-bootstrap-mds-keyring
          secret:
            secretName: ceph-bootstrap-mds-keyring
        - name: ceph-bootstrap-rgw-keyring
          secret:
            secretName: ceph-bootstrap-rgw-keyring
        - name: ceph-monfs
          hostPath:
            path: {{ .Values.storage.mon_directory }}
      containers:
        - name: ceph-mon
          image: {{ .Values.images.daemon }}
          imagePullPolicy: {{ .Values.images.pull_policy }}
          lifecycle:
            preStop:
                exec:
                  # remove the mon on Pod stop.
                  command:
                    - "/remove-mon.sh"
          ports:
            - containerPort: 6789
          env:
            - name: CEPH_DAEMON
              value: MON
            - name: KV_TYPE
              value: k8s
            - name: CLUSTER
              value: ceph
            - name: NETWORK_AUTO_DETECT
              value: "0"
            - name: CEPH_PUBLIC_NETWORK
              value: {{ .Values.network.public | quote }}
            - name: MON_IP
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          volumeMounts:
            - name: ceph-conf
              mountPath: /etc/ceph
            - name: ceph-bootstrap-osd-keyring
              mountPath: /var/lib/ceph/bootstrap-osd
            - name: ceph-bootstrap-mds-keyring
              mountPath: /var/lib/ceph/bootstrap-mds
            - name: ceph-bootstrap-rgw-keyring
              mountPath: /var/lib/ceph/bootstrap-rgw
            - name: ceph-monfs
              mountPath: /var/lib/ceph/mon
          livenessProbe:
              tcpSocket:
                port: 6789
              initialDelaySeconds: 60
              timeoutSeconds: 5
          readinessProbe:
              tcpSocket:
                port: 6789
              timeoutSeconds: 5
          resources:
            requests:
              memory: {{ .Values.resources.mon.requests.memory | quote }}
              cpu: {{ .Values.resources.mon.requests.cpu | quote }}
            limits:
              memory: {{ .Values.resources.mon.limits.memory | quote }}
              cpu: {{ .Values.resources.mon.limits.cpu | quote }}