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Merge pull request #1 from devwithkrishna/feature/resourcelist
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Add list of resources gt decmmisioned as a output in console
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githubofkrishnadhas authored Sep 25, 2024
2 parents 492357a + 4d797ef commit 0af0579
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33 changes: 33 additions & 0 deletions .github/workflows/create-release.yaml
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name: create release on azure terraforminator

on:
pull_request:
types:
- closed
branches:
- main
run-name: create release from pr number ${{ github.event.number }}
jobs:
create-release:
runs-on: ubuntu-latest

steps:

- name: Token generator
uses: githubofkrishnadhas/github-access-using-githubapp@v2
id: token-generation
with:
github_app_id: ${{ secrets.TOKEN_GENERATOR_APPID }}
github_app_private_key: ${{ secrets.TOKEN_GENERATOR_PRIVATE_KEY }}

- name: Checkout Repository
uses: actions/checkout@v4
with:
token: ${{ steps.token-generation.outputs.token }}

- name: create-release
uses: devwithkrishna/devwithkrishna-create-release-action@v1.0.1
with:
token: ${{ steps.token-generation.outputs.token }}
pr_number: ${{ github.event.number }}
generate_release_notes: true
2 changes: 1 addition & 1 deletion .gitignore
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.idea/**
.env
poetry.lock

__pycache__/**

52 changes: 52 additions & 0 deletions README.md
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# azure-terraforminator
A pipeline to delete unused resources in azure based on a specific tag

[![azure-decommision-unsed-resource-groups-with-temporary-tag-as-true](https://github.com/devwithkrishna/azure-terraforminator/actions/workflows/azure-terraforminator.yaml/badge.svg)](https://github.com/devwithkrishna/azure-terraforminator/actions/workflows/azure-terraforminator.yaml)

# What this does

* Reducing cloud costs and decommissioning unused resources are essential practices for efficient cloud management.

#### Cost Savings
* Pay-as-you-go model: Cloud services charge based on resource usage, so any unused or idle resources still incur costs. Decommissioning these saves money that can be allocated elsewhere.
* Hidden costs: Over-provisioned or forgotten services like unused VMs, storage, or databases can rack up unexpected costs over time.
#### Resource Optimization
* Avoid over-provisioning: Scaling down unused or underutilized resources ensures you're only paying for what you need, preventing waste.
* Better performance: By right-sizing resources, you allocate appropriate computing power to services, improving overall performance.
#### Improved Security
* Minimize attack surface: Decommissioning unused resources reduces potential vulnerabilities that could be exploited by attackers.
* Avoid data leakage: Retiring unnecessary storage or services prevents accidental exposure of sensitive data.
#### Operational Efficiency
* Simplified management: Fewer resources mean less administrative overhead in terms of monitoring, patching, and maintenance.
* Compliance and governance: Removing outdated or unnecessary assets helps maintain compliance with regulatory standards, as only necessary resources are active


### This is defined in a way that it decommisions a resource group based on a specific tag in azure. When the autmation finds `Temporary` tag wth Value as `TRUE` it decommisions.


#### For the automation to work we needd a service principal which has access to the subscription level atleast with contributor permission as deletion of resources are involved.

#### Configure the below environment variables as GitHub secrets

```markdown
AZURE_CLIENT_ID = "value"
AZURE_CLIENT_SECRET = "value"
AZURE_TENANT_ID = "value"
```

* The code is using python with poetry as package management tool

* This job is set to run as a cron every day and as a manual trigger as well if necessary

```markdown

This is a sample of output showing what are the resources deleted

The below resources are decommisioned on <Date : yyyy-mm-dd>
+------------------------+-----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------+
| Name | Type | ID | Resource Group Name |
+========================+===================================+====================================================================================================================================================+=======================+
| Name of resource | Type | Resource Id | Rg name |
+------------------------+-----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------+
| mystorageaccountswswwe | Microsoft.Storage/storageAccounts | /subscriptions/es271149ae-05d3-4dcsssf-b946-d71f3f39/resourceGroups/ARCHITECTS-3/providers/Microsoft.Storage/storageAccounts/mystorageaccountswswwe | ARCHITECTS-3 |
+------------------------+-----------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------+-----------------------+

```
1 change: 1 addition & 0 deletions pyproject.toml
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Expand Up @@ -13,6 +13,7 @@ azure-identity = "^1.18.0"
azure-mgmt-resource = "^23.1.1"
azure-mgmt-resourcegraph = "^8.0.0"
azure-core = "^1.31.0"
tabulate = "^0.9.0"


[build-system]
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46 changes: 42 additions & 4 deletions terraforminator.py
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@@ -1,7 +1,8 @@
import os
from datetime import datetime
from datetime import datetime, date
import argparse
import asyncio
from tabulate import tabulate
from dotenv import load_dotenv
from azure.identity import DefaultAzureCredential
from azure.mgmt.resource.resources.v2022_09_01 import ResourceManagementClient
Expand All @@ -26,9 +27,10 @@ async def list_resource_groups_with_temporary_tag(subscription_id: str):
}
rgs_to_deleted.append(rg_dict) # final dictionary of rgs to be deleted with Temporary tag value as TRUE

print(rgs_to_deleted)

# print(rgs_to_deleted)
return rgs_to_deleted


async def delete_resource_groups(subscription_id: str, rgs_to_be_deleted: list[dict]):
"""
Delete the resource groups with Temporary tag value as TRUE
Expand All @@ -39,7 +41,7 @@ async def delete_resource_groups(subscription_id: str, rgs_to_be_deleted: list[d

for rg in rgs_to_be_deleted:
try:
print(f"Deleting {rg['name']} from {subscription_id}")
print(f"Deleting {rg['name']} from {subscription_id} subscription")
resource_management_client.resource_groups.begin_delete(resource_group_name=rg['name']).result()
print(f"Successfully deleted {rg['name']}")

Expand All @@ -54,6 +56,35 @@ async def delete_resource_groups(subscription_id: str, rgs_to_be_deleted: list[d
await asyncio.sleep(1)


def list_resources_in_rg(subscription_id:str, rgs_to_be_deleted: list[dict]):
"""
get the list of resources inside an RG
:param rgs_to_be_deleted:
:return:
"""
credential = DefaultAzureCredential()
resource_management_client = ResourceManagementClient(subscription_id=subscription_id, credential=credential)

details_to_display = []
for rg in rgs_to_be_deleted:
try:
resource_list = resource_management_client.resources.list_by_resource_group(resource_group_name=rg['name'])
for resources in resource_list:
resource = {
'name' : resources.name,
'resource_id' : resources.id,
'resource_type' : resources.type,
'resource_group' : rg['name']
}
details_to_display.append(resource)

except Exception as e:

print(f"Failed to reteive resources from resource group '{rg['name']}': {e}")

return details_to_display


async def main():
"""To test the code"""
start_time = datetime.utcnow() # Get start time in UTC
Expand All @@ -67,7 +98,14 @@ async def main():
subscription_name = args.subscription_name
subscription_id = run_azure_rg_query(subscription_name=subscription_name)
rgs_to_deleted = await list_resource_groups_with_temporary_tag(subscription_id=subscription_id)
details_to_dispaly = list_resources_in_rg(subscription_id=subscription_id, rgs_to_be_deleted=rgs_to_deleted)
await delete_resource_groups(subscription_id=subscription_id, rgs_to_be_deleted=rgs_to_deleted)
print(f"The below resources are decommisioned on {date.today()}")
# Extracting headers and rows
headers = ["Name", "Type", "ID", "Resource Group Name"]
rows = [[item["name"], item["resource_type"], item["resource_id"], item["resource_group"]] for item in details_to_dispaly]
# Printing in tabular format
print(tabulate(rows, headers=headers, tablefmt="grid"))
end_time = datetime.utcnow() # Get end time in UTC
print(f"Process completed at (UTC): {end_time}")
# Calculate and print elapsed time
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