Added "Deletes all topics in An Azure service bus"

README.md

@@ -6,3 +6,4 @@ Welcome to the Gists repository of SLIIT FOSS. This repository is dedicated to h
 
 - [GitHub Account Switching Method with Two Accounts](multi-github.md)
 - [Running a MySQL Database Instance Using Docker](mysql-server-docker.md)
+- [Deletes all topics in An Azure service bus](az-sb-delete-all-topics.md)

az-sb-delete-all-topics.md

@@ -0,0 +1,125 @@
+# Deletes all topics in An Azure service bus
+
+## Prerequisites
+
+1. **Azure CLI Installed**: Ensure you have Azure CLI installed on your system. You can download and install it from [here](https://docs.microsoft.com/en-us/cli/azure/install-azure-cli).
+
+2. **Azure Account**: You'll need an active Azure account. If you don't have one, you can sign up for a free trial [here](https://azure.microsoft.com/en-us/free/).
+
+3. **Access to Azure Service Bus**: You must have access to the Azure Service Bus namespace and the necessary permissions to delete topics.
+
+## Steps to Setup
+
+1. **Authenticate with Azure**: Run `az login` command to authenticate with your Azure account.
+
+2. **Set Variables**: Set the `resource_group` and `namespace` variables in the script to match your Azure Service Bus namespace details.
+
+3. **Save the Script**: Save the script with a `.sh` extension, for example, `delete_servicebus_topics.sh`.
+```bash
+resource_group=your_rg
+namespace=your_namespace
+
+topics=$(az servicebus topic list --resource-group $resource_group --namespace-name $namespace)
+
+ids=""
+
+for i in $(seq 0 $(echo "${topics}" | jq '. | length'))
+do
+   ids="$ids $(echo "${topics}" | jq ".[$i].id")"
+done
+
+az servicebus topic delete --resource-group $resource_group --namespace-name $namespace --ids $ids
+```
+## Usage
+1. **Make the Script Executable**: Run `chmod +x delete_servicebus_topics.sh` to make the script executable.
+
+2. **Run the Script**: Execute the script by running `./delete_servicebus_topics.sh`.
+
+---
+---
+
+# Alternative Method
+
+**Using `--query` global parameter**\
+Uses JMESPath query string. See [Here](http://jmespath.org/) for more information and examples.
+
+## Steps to Setup
+
+1. **Authenticate with Azure**: Run `az login` command to authenticate with your Azure account.
+
+2. **Save the Script**: Save the script with a `.sh` extension, for example, `delete_servicebus_topics.sh`.
+```bash
+#!/bin/bash
+
+usage() {
+  echo "Usage: $0 -g <resource_group> -n <namespace> [-y]"
+  exit 1
+}
+
+confirm_deletion=true
+
+while getopts ":g:n:y" opt; do
+  case ${opt} in
+    g )
+      resource_group=$OPTARG
+      ;;
+    n )
+      namespace=$OPTARG
+      ;;
+    y )
+      confirm_deletion=false
+      ;;
+    \? )
+      echo "Invalid option: $OPTARG" 1>&2
+      usage
+      ;;
+    : )
+      echo "Invalid option: $OPTARG requires an argument" 1>&2
+      usage
+      ;;
+  esac
+done
+shift $((OPTIND -1))
+
+if [ -z "$resource_group" ] || [ -z "$namespace" ]; then
+  echo "Resource group and namespace are required."
+  usage
+fi
+
+echo "Fetching list of topics..."
+
+topics=$(az servicebus topic list --resource-group $resource_group --namespace-name $namespace --query '[].{Name:name, ID:id}' -o json)
+
+if [ -z "$topics" ]; then
+  echo "No topics found in the specified resource group and namespace."
+  exit 1
+fi
+
+echo "Topics to be deleted:"
+echo "$topics" | jq -r '.[] | "\(.Name) (\(.ID))"'
+
+if [ "$confirm_deletion" = true ]; then
+  read -p "Are you sure you want to delete these topics? (y/n): " confirm
+else
+  confirm="y"
+fi
+
+if [[ $confirm =~ ^[Yy]$ ]]; then
+  echo "Deleting topics..."
+  ids=$(echo "$topics" | jq -r '.[].ID')
+  az servicebus topic delete --resource-group $resource_group --namespace-name $namespace --ids $ids
+  echo "Topics deleted successfully."
+else
+  echo "Deletion cancelled."
+fi
+
+```
+
+## Usage
+
+1. **Make the Script Executable**: Run `chmod +x delete_servicebus_topics.sh` to make the script executable.
+
+2. **Run the Script**: Execute the script by running `./delete_servicebus_topics.sh -g <resource_group> -n <namespace> [-y]`.
+    - `-g`: Takes resource group.
+    - `-n`: Takes namespace.
+    - `-y`: Deletes without confirmation.