monitoring/charts/app-monitoring/templates/deployment.yaml

#
# Copyright (C) 2017-2025 Institute of Communication and Computer Systems (imu.iccs.gr)
#
# This Source Code Form is subject to the terms of the Mozilla Public License, v2.0, unless
# Esper library is used, in which case it is subject to the terms of General Public License v2.0.
# If a copy of the MPL was not distributed with this file, you can obtain one at
# https://www.mozilla.org/en-US/MPL/2.0/
#
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "ems-server.fullname" . }}
  labels:
    {{- include "ems-server.labels" . | nindent 4 }}
spec:
  {{- if not .Values.autoscaling.enabled }}
  replicas: {{ .Values.replicaCount }}
  {{- end }}
  selector:
    matchLabels:
      {{- include "ems-server.selectorLabels" . | nindent 6 }}
  template:
    metadata:
      {{- with .Values.podAnnotations }}
      annotations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      labels:
        {{- include "ems-server.selectorLabels" . | nindent 8 }}
    spec:
      {{- with .Values.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}

      serviceAccountName: {{ include "ems-server.serviceAccountName" . }}
      securityContext:
        {{- toYaml .Values.podSecurityContext | nindent 8 }}

      terminationGracePeriodSeconds: 10
      containers:
        - name: {{ .Chart.Name }}
          securityContext:
            {{- toYaml .Values.securityContext | nindent 12 }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          env:
            #
            # EMS server configuration -- Environment variables from command line
            #
            - name: APPLICATION_ID
              value: "{{ .Values.app_uuid }}"
            - name: EXTERNAL_BROKER_ADDRESS
              value: "{{ .Values.broker_address }}"
            - name: EXTERNAL_BROKER_PORT
              value: "{{ .Values.broker_port }}"
            - name: EXTERNAL_BROKER_USERNAME
              value: "{{ .Values.broker_username }}"
            - name: EXTERNAL_BROKER_PASSWORD
              value: "{{ .Values.broker_password }}"
            #
            # EMS server configuration -- Environment variables from values.yaml
            #
            {{- range .Values.env }}
            - name: {{ .name }}
              value: {{ .value | quote }}
            {{- end }}
            #
            # K8S cluster node info
            #
            - name: EMS_SERVER_K8S_NODE_NAME
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            - name: EMS_SERVER_K8S_NODE_ADDRESS
              valueFrom:
                fieldRef:
                  fieldPath: status.hostIP
            #
            # EMS server Pod info
            #
            - name: EMS_SERVER_POD_UID
              valueFrom:
                fieldRef:
                  fieldPath: metadata.uid
            - name: EMS_SERVER_POD_NAME
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: EMS_SERVER_POD_NAMESPACE
              valueFrom:
                fieldRef:
                  fieldPath: metadata.namespace
            - name: EMS_SERVER_POD_ADDRESS
              valueFrom:
                fieldRef:
                  fieldPath: status.podIP
          ports:
            {{- range .Values.ports }}
            - name: {{ .name }}
              containerPort: {{ .containerPort }}
              protocol: {{ .protocol }}
            {{- end }}
          livenessProbe:
            tcpSocket:
              port: http
          readinessProbe:
            tcpSocket:
              port: http
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.affinity }}
      affinity:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
---
# The configmap to be updated
#apiVersion: v1
#kind: ConfigMap
#metadata:
#  name: ems-client-configmap
#---

kind: RoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: ems-server-role-binding
subjects:
  - kind: ServiceAccount
    name: {{ include "ems-server.serviceAccountName" . }}
#    namespace: default
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: Role
  name: ems-server-role
---
kind: Role
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: ems-server-role
# Benefit of using RBAC over giving your personal access token as a secret to your application: You can pinpoint which access you want to allow
rules:
  - apiGroups: ["", "apps"] # Empty string for kubernetes system
    resources: ["configmaps", "daemonsets"]
    resourceNames: ["monitoring-configmap", "ems-client-configmap", "ems-client-daemonset"]
    verbs: ["get", "update", "delete", "list", "watch", "patch"]
  - apiGroups: ["", "apps"] # Empty string for kubernetes system
    resources: ["configmaps", "daemonsets"]
    verbs: ["create"]

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: ems-server-cluster-role-binding
subjects:
  - kind: ServiceAccount
    name: {{ include "ems-server.serviceAccountName" . }}
    namespace: default
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: ems-server-cluster-role
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: ems-server-cluster-role
rules:
  - apiGroups: ["", "apps"]
    resources: ["pods", "nodes"]
    verbs: ["get", "list", "watch"]