Set Azure VM power state or scale its size according a time schedule pattern, declared with Azure Tags
Microsoft Azure offers a fast, flexible and easily scalable platform for hosting Virtual Machine workloads. However, this so called IaaS (Infrastructure as a Service) computer is relatively expensive and any new deployment should include a plan to scale the VM’s resources up/down to prevent unnecessary high machine resources configurations, which will translate into high monthly bills.
Instead of manually switching VMs on or off, or resizing its specs, at set times during the day, this PowerShell script (intended to run periodically in Azure Automation) scales VMs automatically according a pattern set using Azure Tags.
Note thate there will be downtime when rescaling VMs
Azure Tags are only available for Azure RM resources (ARM). Azure Tags cannot be assigned to VMs that are deployed using Classic compute and therefore cannot be controlled using this script.
Pattern describing the scheduled hours, timezone and workdays
Format: [time from] - [time to] | [TimeZone ID] | [workdays; comma separated]
Example:
08:00-18:00|W. Europe Standard Time|mon,tue,wed,thu,fri
07:00-20:00|Central America Standard Time|mon,tue,wed,thu,fri,sat
An overview of available TimeZoneIDs can be found here: TimeZoneIDs.md
Definition of the VM state or size during and outside scheduled hours.
State can either be on or off, or a VM size to scale to.
Format: [state during scheduled hours] | [state outside scheduled hours]
Example:
on|off
standard_B4ms|standard_B2s
Standard_D3_v2_Promo|off
An overview of available VM sizes in your Azure region can be requested using this PowerShell script.
Get-AzureRmVMSize -Location "West Europe"
# change the location to whatever Azure region you would like an overview forIndicates whether the resource should be processed by the script.
When omitted, or true, the script will process this VM. When set to false it will be skipped.
Format: [boolean] (true or false)
Example: false
- Code the script and commit
- Complete readme, add some images on how to setup in Azure
- Add reference to overview of timezone IDs
- ?? Include overview of available VM sizes quickly outdated ??