ArgoCD App-of-Apps

apiVersion: apps/v1
kind: Deployment
metadata:
  name: {{ include "java-service.fullname" . }}
  labels:
    {{- include "java-service.labels" . | nindent 4 }}
spec:
  revisionHistoryLimit: 3
  {{- if not .Values.autoscaling.enabled }}
  replicas: {{ .Values.replicaCount }}
  {{- end }}
  selector:
    matchLabels:
      {{- include "java-service.selectorLabels" . | nindent 6 }}
  template:
    metadata:
      annotations:
        reloader.stakater.com/auto: "true"
        sidecar.istio.io/inject: "{{ .Values.istio.sidecar }}"
        {{- if .Values.istio.sidecar }}
        proxy.istio.io/config: '{"holdApplicationUntilProxyStarts": true}'
        {{- end }}
      labels:
        {{- include "java-service.podLabels" . | nindent 8 }}
        {{- include "java-service.versionLabel" . | nindent 8 }}
    spec:
      {{- with .Values.imagePullSecrets }}
      imagePullSecrets:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      terminationGracePeriodSeconds: {{ .Values.terminationGracePeriodSeconds }}
      {{- if .Values.otel.enabled }}
      initContainers:
        - name: otel-agent-init
          image: busybox:1.36
          command:
            - sh
            - -c
            - |
              wget -O /otel/opentelemetry-javaagent.jar \
                https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v{{ .Values.otel.agentVersion }}/opentelemetry-javaagent.jar
          volumeMounts:
            - name: otel-agent
              mountPath: /otel
      {{- end }}
      containers:
        - name: {{ include "java-service.name" . }}
          {{- if and .Values.ecr.accountId .Values.image.name }}
          image: "{{ .Values.ecr.accountId }}.dkr.ecr.{{ .Values.ecr.region }}.amazonaws.com/{{ .Values.image.name }}:{{ .Values.image.tag }}"
          {{- else }}
          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
          {{- end }}
          imagePullPolicy: {{ .Values.image.pullPolicy }}
          ports:
            - name: http
              containerPort: {{ .Values.service.port }}
              protocol: TCP
            {{- if .Values.metrics.enabled }}
            - name: management
              containerPort: {{ .Values.metrics.port }}
              protocol: TCP
            {{- end }}
          env:
            - name: JAVA_OPTS
              value: {{ .Values.javaOpts | quote }}
            {{- if .Values.otel.enabled }}
            - name: JAVA_TOOL_OPTIONS
              value: "-javaagent:/otel/opentelemetry-javaagent.jar"
            - name: OTEL_SERVICE_NAME
              value: {{ .Release.Name }}
            - name: OTEL_EXPORTER_OTLP_ENDPOINT
              value: {{ .Values.otel.collectorEndpoint | quote }}
            - name: OTEL_EXPORTER_OTLP_PROTOCOL
              value: "grpc"
            - name: OTEL_METRIC_EXPORT_INTERVAL
              value: "15000"
            {{- end }}
            {{- with .Values.env }}
            {{- toYaml . | nindent 12 }}
            {{- end }}
          {{- with .Values.envFrom }}
          envFrom:
            {{- toYaml . | nindent 12 }}
          {{- end }}
          volumeMounts:
            - name: log-dir
              mountPath: /var/log/backend
            {{- if .Values.otel.enabled }}
            - name: otel-agent
              mountPath: /otel
              readOnly: true
            {{- end }}
          livenessProbe:
            httpGet:
              path: {{ .Values.contextPath }}{{ .Values.livenessProbe.httpGet.path }}
              port: {{ .Values.livenessProbe.httpGet.port }}
            initialDelaySeconds: {{ .Values.livenessProbe.initialDelaySeconds | default 90 }}
            periodSeconds: {{ .Values.livenessProbe.periodSeconds | default 10 }}
          readinessProbe:
            httpGet:
              path: {{ .Values.contextPath }}{{ .Values.readinessProbe.httpGet.path }}
              port: {{ .Values.readinessProbe.httpGet.port }}
            initialDelaySeconds: {{ .Values.readinessProbe.initialDelaySeconds | default 45 }}
            periodSeconds: {{ .Values.readinessProbe.periodSeconds | default 5 }}
          resources:
            {{- toYaml .Values.resources | nindent 12 }}
      volumes:
        - name: log-dir
          emptyDir: {}
        {{- if .Values.otel.enabled }}
        - name: otel-agent
          emptyDir: {}
        {{- end }}
      {{- with .Values.nodeSelector }}
      nodeSelector:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      {{- with .Values.tolerations }}
      tolerations:
        {{- toYaml . | nindent 8 }}
      {{- end }}
      affinity:
        podAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 100
              podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/part-of: {{ .Values.partOf | default "staging-webs" }}
                topologyKey: kubernetes.io/hostname
        podAntiAffinity:
          preferredDuringSchedulingIgnoredDuringExecution:
            - weight: 100
              podAffinityTerm:
                labelSelector:
                  matchLabels:
                    app.kubernetes.io/instance: {{ .Release.Name }}
                topologyKey: kubernetes.io/hostname
      topologySpreadConstraints:
        - maxSkew: 1
          topologyKey: topology.kubernetes.io/zone
          whenUnsatisfiable: ScheduleAnyway
          labelSelector:
            matchLabels:
              app.kubernetes.io/instance: {{ .Release.Name }}
        - maxSkew: 1
          topologyKey: kubernetes.io/hostname
          whenUnsatisfiable: ScheduleAnyway
          labelSelector:
            matchLabels:
              app.kubernetes.io/instance: {{ .Release.Name }}

{{- range $ns, $config := .Values.namespaces }}
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-ingress
  namespace: {{ $ns }}
spec:
  podSelector: {}
  policyTypes:
    - Ingress
  ingress:
    {{- range $config.allowIngressFrom }}
    - from:
        {{- if .namespaceSelector }}
        - namespaceSelector:
            {{- toYaml .namespaceSelector | nindent 12 }}
          {{- if .podSelector }}
          podSelector:
            {{- toYaml .podSelector | nindent 12 }}
          {{- end }}
        {{- else if .podSelector }}
        - podSelector:
            {{- toYaml .podSelector | nindent 12 }}
        {{- end }}
    {{- end }}
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-egress
  namespace: {{ $ns }}
spec:
  podSelector: {}
  policyTypes:
    - Egress
  egress:
    {{- range $config.allowEgressTo }}
    - to:
        {{- if .namespaceSelector }}
        - namespaceSelector:
            {{- toYaml .namespaceSelector | nindent 12 }}
          {{- if .podSelector }}
          podSelector:
            {{- toYaml .podSelector | nindent 12 }}
          {{- end }}
        {{- else if .podSelector }}
        - podSelector:
            {{- toYaml .podSelector | nindent 12 }}
        {{- end }}
    {{- end }}
    # Always allow DNS resolution
    - to:
        - namespaceSelector:
            matchLabels:
              kubernetes.io/metadata.name: kube-system
      ports:
        - protocol: UDP
          port: 53
        - protocol: TCP
          port: 53
{{- end }}
{{- if .Values.defaultDeny.enabled }}
{{- range $ns, $config := .Values.namespaces }}
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: default-deny-all
  namespace: {{ $ns }}
spec:
  podSelector: {}
  policyTypes:
    - Ingress
    - Egress
{{- end }}
{{- end }}