Implemented Kafka deployment

.github/workflows/helm_deploy_kafka.yaml

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+name: Helm Kafka deployment
+
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - main
+    paths:
+      - ".github/workflows/helm_deploy_kafka.yaml"
+      - "infra/helm/kafka/**"
+
+jobs:
+  helm_deploy:
+    name: "Deploy Kafka"
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        id: checkout_repo
+        uses: actions/checkout@v2
+
+      - name: Login to Azure
+        id: login_to_azure
+        run: |
+          az login \
+            --service-principal \
+            -u ${{ secrets.AZURE_SERVICE_PRINCIPAL_APP_ID }} \
+            -p ${{ secrets.AZURE_SERVICE_PRINCIPAL_SECRET }} \
+            --tenant ${{ secrets.AZURE_TENANT_ID }}
+
+      - name: Get AKS credentials
+        id: get_aks_credentials
+        run: |
+          az aks get-credentials \
+            --resource-group "rg${{ secrets.PROJECT }}main${{ secrets.INSTANCE }}" \
+            --name "aks${{ secrets.PROJECT }}main${{ secrets.INSTANCE }}" \
+            --overwrite-existing
+
+      - name: Install Helm
+        id: install_helm
+        uses: azure/setup-helm@v3
+        with:
+          version: "v3.11.1"
+
+      - name: Deploy Helm chart
+        id: deploy_helm_chart
+        run: |
+          bash ./infra/helm/kafka/deploy.sh
+
+      - name: Logout of Azure
+        id: logout_from_azure
+        if: always()
+        run: |
+          az logout

infra/helm/kafka/README.md

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+# Kafka
+
+To be implemented...

infra/helm/kafka/deploy.sh

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+#!/bin/bash
+
+### Set variables
+declare -A kafka
+kafka["name"]="kafka"
+kafka["namespace"]="opsteam"
+
+###################
+### Deploy Helm ###
+###################
+
+# Add helm repos
+helm repo add bitnami https://charts.bitnami.com/bitnami
+helm repo update
+
+# kafka
+helm upgrade ${kafka[name]} \
+  --install \
+  --wait \
+  --debug \
+  --create-namespace \
+  --namespace=${kafka[namespace]} \
+  --set listeners.client.protocol=PLAINTEXT \
+  --set provisioning.enabled=true \
+  --set provisioning.topics[0].name="dotnet" \
+  --set provisioning.topics[0].partitions=3 \
+  --set provisioning.topics[1].name="golang" \
+  --set provisioning.topics[1].partitions=3 \
+  --set provisioning.topics[2].name="java" \
+  --set provisioning.topics[2].partitions=3 \
+  --set provisioning.topics[3].name="javascript" \
+  --set provisioning.topics[4].partitions=3 \
+  --set provisioning.topics[5].name="python" \
+  --set provisioning.topics[5].partitions=3 \
+  --version "26.6.2" \
+  "bitnami/kafka"