Add application for Kafka (#78)

Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

packages/apps/kafka/Chart.yaml

@@ -0,0 +1,25 @@
+apiVersion: v2
+name: kafka
+description: Managed Kafka service
+icon: https://upload.wikimedia.org/wikipedia/commons/0/05/Apache_kafka.svg
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

packages/apps/kafka/templates/kafka.yaml

@@ -0,0 +1,53 @@
+apiVersion: kafka.strimzi.io/v1beta2
+kind: Kafka
+metadata:
+  name: {{ .Release.Name }}
+  labels:
+    app.kubernetes.io/instance: {{ .Release.Name }}
+    app.kubernetes.io/managed-by: {{ .Release.Service }}
+spec:
+  kafka:
+    replicas: 3
+    listeners:
+      - name: plain
+        port: 9092
+        type: internal
+        tls: false
+      - name: tls
+        port: 9093
+        type: internal
+        tls: true
+      - name: external
+        port: 9094
+        {{- if .Values.external }}
+        type: loadbalancer
+        {{- else }}
+        type: internal
+        {{- end }}
+        tls: false
+    config:
+      offsets.topic.replication.factor: 3
+      transaction.state.log.replication.factor: 3
+      transaction.state.log.min.isr: 2
+      default.replication.factor: 3
+      min.insync.replicas: 2
+    storage:
+      type: jbod
+      volumes:
+      - id: 0
+        type: persistent-claim
+        {{- with .Values.kafka.size }}
+        size: {{ . }}
+        {{- end }}
+        deleteClaim: true
+  zookeeper:
+    replicas: 3
+    storage:
+      type: persistent-claim
+      {{- with .Values.zookeeper.size }}
+      size: {{ . }}
+      {{- end }}
+      deleteClaim: false
+  entityOperator:
+    topicOperator: {}
+    userOperator: {}

packages/apps/kafka/templates/topics.yaml

@@ -0,0 +1,17 @@
+{{- range $topic := .Values.topics }}
+---
+apiVersion: kafka.strimzi.io/v1beta2
+kind: KafkaTopic
+metadata:
+  name: "{{ $.Release.Name }}-{{ kebabcase $topic.name }}"
+  labels:
+    strimzi.io/cluster: "{{ $.Release.Name }}"
+spec:
+  topicName: "{{ $topic.name }}"
+  partitions: 10
+  replicas: 3
+  {{- with $topic.config }}
+  config:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

packages/apps/kafka/values.yaml

@@ -0,0 +1,20 @@
+external: false
+kafka:
+  size: 10Gi
+zookeeper:
+  size: 5Gi
+
+topics:
+  - name: Results
+    partitions: 1
+    replicas: 3
+    config:
+      min.insync.replicas: 2
+  - name: Orders
+    config:
+      cleanup.policy: compact
+      segment.ms: 3600000
+      max.compaction.lag.ms: 5400000
+      min.insync.replicas: 2
+    partitions: 1
+    replicationFactor: 3

packages/apps/versions_map

@@ -1,5 +1,6 @@
 clickhouse 0.1.0 HEAD
 http-cache 0.1.0 HEAD
+kafka 0.1.0 HEAD
 kubernetes 0.1.0 HEAD
 mysql 0.1.0 f642698
 mysql 0.2.0 HEAD