feat: install bitnami/kafka dependency helm chart

- Install kafka cluster with 3 brokers

Fixes issue #1

Chart.lock

@@ -0,0 +1,6 @@
+dependencies:
+- name: kafka
+  repository: https://charts.bitnami.com/bitnami
+  version: 26.4.0
+digest: sha256:3abfbc36f193cb62d0e1c0b1b866bd665e215e8b9ad5368ff855d4eedee30b3f
+generated: "2023-11-10T08:43:13.934774-05:00"

Chart.yaml

@@ -1,24 +1,22 @@
 apiVersion: v2
 name: infra-helm-chart
-description: A Helm chart for Kubernetes
-
-# 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.
+description: A Helm chart for Kubernetes to install dependencies
 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"
+home: https://github.com/csye7125-fall2023-group05/infra-helm-chart
+keywords:
+  - CSYE-7125 Infrastructure HELM Chart
+  - dependency helm chart
+maintainers:
+  - name: Siddharth Rawat
+    email: [email protected]
+    url: https://sydrawat.live
+  - name: Rishab Rajesh Agarwal
+    email: [email protected]
+  - name: Karan Wadhwa
+    email: [email protected]
+dependencies:
+  - name: kafka
+    version: "26.4.x"
+    repository: "https://charts.bitnami.com/bitnami"

README.md

@@ -4,3 +4,49 @@ This helm chart is to deploy a highly reliable and highly available [Kafka](http
 
 This makes use of [Bitnami's Kafka Helm Chart](https://github.com/bitnami/charts/tree/main/bitnami/kafka) as a dependency.
 
+- Adding the `bitnami/kafka` chart as a dependency:
+
+```yaml
+# Chart.yaml
+dependencies:
+  - name: kafka
+    version: "26.4.x"
+    repository: "https://charts.bitnami.com/bitnami"
+```
+
+- Install/update dependencies:
+
+```bash
+# adds the bitnami/kafka dependency chart in charts/ directory
+helm dependency update
+```
+
+- The `values.yaml` overrides the configurations for the `kafka` dependency chart to create 3 brokers (along with other configurations).
+
+```yaml
+# values.yaml
+kafka:
+  listeners:
+    client:
+      protocol: PLAINTEXT
+    controller:
+      protocol: PLAINTEXT
+    interbroker:
+      protocol: PLAINTEXT
+    external:
+      protocol: PLAINTEXT
+  controller:
+    replicaCount: 0
+  broker:
+    replicaCount: 3
+    persistence:
+      size: 1Gi
+  serviceAccount:
+    create: false
+  kraft:
+    enabled: false
+  zookeeper:
+    enabled: true
+    persistence:
+      size: 1Gi
+```

values.yaml

@@ -28,10 +28,12 @@ serviceAccount:
 podAnnotations: {}
 podLabels: {}
 
-podSecurityContext: {}
+podSecurityContext:
+  {}
   # fsGroup: 2000
 
-securityContext: {}
+securityContext:
+  {}
   # capabilities:
   #   drop:
   #   - ALL
@@ -46,7 +48,8 @@ service:
 ingress:
   enabled: false
   className: ""
-  annotations: {}
+  annotations:
+    {}
     # kubernetes.io/ingress.class: nginx
     # kubernetes.io/tls-acme: "true"
   hosts:
@@ -59,7 +62,8 @@ ingress:
   #    hosts:
   #      - chart-example.local
 
-resources: {}
+resources:
+  {}
   # We usually recommend not to specify default resources and to leave this as a conscious
   # choice for the user. This also increases chances charts run on environments with little
   # resources, such as Minikube. If you do want to specify resources, uncomment the following
@@ -96,3 +100,34 @@ nodeSelector: {}
 tolerations: []
 
 affinity: {}
+
+kafka:
+  listeners:
+    client:
+      protocol: PLAINTEXT
+    controller:
+      protocol: PLAINTEXT
+    interbroker:
+      protocol: PLAINTEXT
+    external:
+      protocol: PLAINTEXT
+  controller:
+    replicaCount: 0
+  broker:
+    replicaCount: 3
+    persistence:
+      size: 1Gi
+  # externalAccess:
+  #   enabled: true
+  #   autoDiscovery:
+  #     enabled: true
+  serviceAccount:
+    create: false
+  # rbac:
+  #   create: true
+  kraft:
+    enabled: false
+  zookeeper:
+    enabled: true
+    persistence:
+      size: 1Gi