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https://github.com/cloudyspells/PSWattTime
PowerShell module for WattTime API free functions
https://github.com/cloudyspells/PSWattTime
azure carbon-emissions carbon-footprint co2 co2-emissions co2-footprint deployment github-actions green-computing green-software powershell powershell-module sustainability sustainable-software
Last synced: about 2 months ago
JSON representation
PowerShell module for WattTime API free functions
- Host: GitHub
- URL: https://github.com/cloudyspells/PSWattTime
- Owner: cloudyspells
- License: gpl-3.0
- Created: 2023-03-05T16:31:20.000Z (over 1 year ago)
- Default Branch: main
- Last Pushed: 2023-03-26T18:03:52.000Z (over 1 year ago)
- Last Synced: 2024-04-24T12:02:06.790Z (2 months ago)
- Topics: azure, carbon-emissions, carbon-footprint, co2, co2-emissions, co2-footprint, deployment, github-actions, green-computing, green-software, powershell, powershell-module, sustainability, sustainable-software
- Language: PowerShell
- Homepage:
- Size: 75.2 KB
- Stars: 4
- Watchers: 1
- Forks: 0
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.md
- Code of conduct: CODE_OF_CONDUCT.md
- Codeowners: .github/CODEOWNERS
- Security: SECURITY.md
Lists
- awesome-green-software - PSWattTime
README
PSWattTime
==========
PowerShell Module for WattTime emission data
--------------------------------------------
[](https://github.com/cloudyspells/PSWattTime/actions/workflows/qa.yml)
This PowerShell module is intended for retrieving emissions data from
[WattTime](https://www.watttime.org/) for a supplied Azure Region during
resource deployments. This is a lightweight solution making use of only the
limited functionality available with a free account at _WattTime_. This means
the module is only able to get near-realtime emissions data and no prodictive
values. This means this module is _not_ a real solution for reduced carbon
deployments and -software. It _does_ however provide some nice realtime values
so you can simulate the beheaviour of deployments and software based on
emissions data without the cost of a paid account for such data. For example in
lab- or proof of concept environments.
The intended use of this module is for setting the `Location` parameter
on Azure IaC deployments in GitHub workflows using the included GitHub
action.
For a real-world solution with a commercial data provider, check out
the [carbon-aware-sdk](https://github.com/Green-Software-Foundation/carbon-aware-sdk)
by the [Green Software Foundation](https://greensoftware.foundation/)
### Usage
#### PowerShell Module
To get started with this module you will need an account on
[WattTime](https://www.watttime.org/). See
[the manual](https://www.watttime.org/api-documentation/#register-new-user)
on registering an account. The module provides a function `New-WattTimeAccount`
to create an account if you do not yet have one.
You will also need the _Az.Resources_ PowerShell Module for Azure installed
and connected to your Azure account. See
[the installation manual](https://learn.microsoft.com/en-us/powershell/azure/install-az-ps)
for the _Az_ module for instructions.
To install the module from the [PowerShell Gallery](https://www.powershellgallery.com/packages/PSWattTime/).
```powershell
Install-Module -Name PSWattTime
```
To register an account with _WattTime_:
```powershell
New-WattTimeAccount -Username `
-Password '' `
-Email '' `
-Organization
```
Authenticate to the _WattTime_ API:
```powershell
$token = Get-WattTimeAuthToken -Username '' `
-Password ''
```
Get current percentage of energy with emissions the 'westeurope' Azure region:
```powershell
PS C:\> Get-WattTimeForAzureRegion -Region westeurope -AuthToken $token
ba : NL
freq : 300
percent : 94
point_time : 5-3-2023 13:15:00
region : westeurope
```
Determine the lowest emissions for the list of northeurope,
westeurope, francecentral and uksouth Azure regions:
```powershell
PS C:\> Get-AzureRegionWithLowestWattTime -Regions westeurope,uksouth,northeurope,francecentral -AuthToken $token
ba : IE
freq : 300
percent : 69
point_time : 5-3-2023 14:15:00
region : northeurope
```
##### Module Functions
- [ConvertFrom-AzureRegion](docs/ConvertFrom-AzureRegion.md)
- [Get-AzureRegionWithLowestWattTime](docs/Get-AzureRegionWithLowestWattTime.md)
- [Get-WattTime](docs/Get-WattTime.md)
- [Get-WattTimeAuthToken](docs/Get-WattTimeAuthToken.md)
- [Get-WattTimeForAzureRegion](docs/Get-WattTimeForAzureRegion.md)
- [New-WattTimeAccount](docs/New-WattTimeAccount.md)
#### GitHub Action
This PowerShell module also comes with a _GitHub Action_ you can use
in your GitHub workflows. Again you will need a pre-existing account
for _WattTime_ and an Azure CLI/PowerShell secret configured in your repo
##### Example
```yaml
on:
pull_request:
branches:
- 'main'
- 'releases/**'
name: Deploy to region with lowest emissions
jobs:
deploy-to-test:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v3
- name: Get region with lowest emissions
uses: cloudyspells/PSWattTime@main
id: watttime_action # Set step id for using output in deployment
with:
azure_credential: ${{ secrets.AZURE_CREDENTIALS }}
watttime_username: ${{ secrets.WATTTIMEUSERNAME }}
watttime_password: ${{ secrets.WATTTIMEPASSWORD }}
regions: '"westeurope","northeurope","uksouth","francecentral","germanynorth"'
- name: Login to Az PowerShell Module
uses: azure/login@v1
with:
creds: ${{ secrets.AZURE_CREDENTIALS }}
enable-AzPSSession: true
- uses: azure/arm-deploy@v1
name: Run Bicep deployment
with:
subscriptionId: ${{ secrets.AZURE_SUBSCRIPTION_ID }}
scope: subscription
region: ${{ steps.watttime_action.outputs.region }} # The region output from PSWattTime
template: src/bicep/main.bicep
```