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| 1 | +{{- if .Values.kafka.enabled }} |
| 2 | +--- |
| 3 | +apiVersion: batch/v1 |
| 4 | +kind: Job |
| 5 | +metadata: |
| 6 | + name: kafka-init-topics |
| 7 | + labels: |
| 8 | + {{- include "observability-services.labels" . | nindent 4 }} |
| 9 | + annotations: |
| 10 | + "helm.sh/hook": post-install,post-upgrade |
| 11 | + "helm.sh/hook-weight": "0" |
| 12 | + "helm.sh/hook-delete-policy": hook-succeeded,before-hook-creation |
| 13 | +spec: |
| 14 | + template: |
| 15 | + spec: |
| 16 | + restartPolicy: OnFailure |
| 17 | + containers: |
| 18 | + - name: kafka-init |
| 19 | + image: "{{ .Values.kafka.image.repository }}:{{ .Values.kafka.image.tag }}" |
| 20 | + command: |
| 21 | + - /bin/bash |
| 22 | + - -c |
| 23 | + - | |
| 24 | + echo "Waiting for Kafka to be ready..." |
| 25 | + until /opt/kafka/bin/kafka-broker-api-versions.sh --bootstrap-server kafka:9092 > /dev/null 2>&1; do |
| 26 | + sleep 2 |
| 27 | + done |
| 28 | + echo "Kafka is ready. Creating topics..." |
| 29 | + {{- range .Values.kafka.topics }} |
| 30 | + /opt/kafka/bin/kafka-topics.sh --bootstrap-server kafka:9092 --create --if-not-exists --topic {{ . }} --partitions 16 --replication-factor 1 |
| 31 | + {{- end }} |
| 32 | + echo "Topics created." |
| 33 | +--- |
| 34 | +apiVersion: v1 |
| 35 | +kind: Service |
| 36 | +metadata: |
| 37 | + name: kafka |
| 38 | + labels: |
| 39 | + {{- include "observability-services.labels" . | nindent 4 }} |
| 40 | +spec: |
| 41 | + type: ClusterIP |
| 42 | + ports: |
| 43 | + - name: kafka |
| 44 | + port: 9092 |
| 45 | + targetPort: kafka |
| 46 | + - name: controller |
| 47 | + port: 9093 |
| 48 | + targetPort: controller |
| 49 | + selector: |
| 50 | + {{- include "observability-services.selectorLabels" . | nindent 4 }} |
| 51 | + app.kubernetes.io/component: kafka |
| 52 | + |
| 53 | +--- |
| 54 | +apiVersion: apps/v1 |
| 55 | +kind: StatefulSet |
| 56 | +metadata: |
| 57 | + name: kafka |
| 58 | + labels: |
| 59 | + {{- include "observability-services.labels" . | nindent 4 }} |
| 60 | +spec: |
| 61 | + serviceName: kafka |
| 62 | + replicas: 1 |
| 63 | + selector: |
| 64 | + matchLabels: |
| 65 | + {{- include "observability-services.selectorLabels" . | nindent 6 }} |
| 66 | + app.kubernetes.io/component: kafka |
| 67 | + template: |
| 68 | + metadata: |
| 69 | + labels: |
| 70 | + {{- include "observability-services.selectorLabels" . | nindent 8 }} |
| 71 | + app.kubernetes.io/component: kafka |
| 72 | + spec: |
| 73 | + containers: |
| 74 | + - name: kafka |
| 75 | + image: "{{ .Values.kafka.image.repository }}:{{ .Values.kafka.image.tag }}" |
| 76 | + imagePullPolicy: {{ .Values.kafka.image.pullPolicy }} |
| 77 | + |
| 78 | + ports: |
| 79 | + - name: kafka |
| 80 | + containerPort: 9092 |
| 81 | + - name: controller |
| 82 | + containerPort: 9093 |
| 83 | + |
| 84 | + env: |
| 85 | + # ---- KRaft basics ---- |
| 86 | + - name: KAFKA_NODE_ID |
| 87 | + value: "1" |
| 88 | + |
| 89 | + - name: KAFKA_PROCESS_ROLES |
| 90 | + value: broker,controller |
| 91 | + |
| 92 | + - name: KAFKA_CONTROLLER_LISTENER_NAMES |
| 93 | + value: CONTROLLER |
| 94 | + |
| 95 | + # ---- Networking ---- |
| 96 | + - name: KAFKA_LISTENERS |
| 97 | + value: PLAINTEXT://0.0.0.0:9092,CONTROLLER://0.0.0.0:9093 |
| 98 | + |
| 99 | + - name: KAFKA_ADVERTISED_LISTENERS |
| 100 | + value: PLAINTEXT://kafka:9092 |
| 101 | + |
| 102 | + - name: KAFKA_CONTROLLER_QUORUM_VOTERS |
| 103 | + value: 1@localhost:9093 |
| 104 | + |
| 105 | + # Single node |
| 106 | + - name: KAFKA_LISTENER_SECURITY_PROTOCOL_MAP |
| 107 | + value: PLAINTEXT:PLAINTEXT,CONTROLLER:PLAINTEXT |
| 108 | + |
| 109 | + - name: KAFKA_INTER_BROKER_LISTENER_NAME |
| 110 | + value: PLAINTEXT |
| 111 | + |
| 112 | + - name: KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR |
| 113 | + value: "1" |
| 114 | + |
| 115 | + - name: KAFKA_TRANSACTION_STATE_LOG_REPLICATION_FACTOR |
| 116 | + value: "1" |
| 117 | + |
| 118 | + - name: KAFKA_TRANSACTION_STATE_LOG_MIN_ISR |
| 119 | + value: "1" |
| 120 | + |
| 121 | + # ---- Topics ---- |
| 122 | + - name: KAFKA_AUTO_CREATE_TOPICS_ENABLE |
| 123 | + value: "true" |
| 124 | + |
| 125 | + # ---- Logs ---- |
| 126 | + - name: KAFKA_LOG_DIRS |
| 127 | + value: /var/lib/kafka/data |
| 128 | + |
| 129 | + volumeMounts: |
| 130 | + - name: data |
| 131 | + mountPath: /var/lib/kafka/data |
| 132 | + |
| 133 | + readinessProbe: |
| 134 | + tcpSocket: |
| 135 | + port: kafka |
| 136 | + initialDelaySeconds: 10 |
| 137 | + periodSeconds: 10 |
| 138 | + |
| 139 | + livenessProbe: |
| 140 | + tcpSocket: |
| 141 | + port: kafka |
| 142 | + initialDelaySeconds: 30 |
| 143 | + periodSeconds: 20 |
| 144 | + |
| 145 | + resources: |
| 146 | + {{- toYaml .Values.kafka.resources | nindent 12 }} |
| 147 | + |
| 148 | + volumeClaimTemplates: |
| 149 | + - metadata: |
| 150 | + name: data |
| 151 | + spec: |
| 152 | + accessModes: ["ReadWriteOnce"] |
| 153 | + resources: |
| 154 | + requests: |
| 155 | + storage: {{ .Values.kafka.storage.size }} |
| 156 | + {{- if .Values.kafka.storage.storageClass }} |
| 157 | + storageClassName: {{ .Values.kafka.storage.storageClass | quote }} |
| 158 | + {{- end }} |
| 159 | +{{- end }} |
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