Azure Instance Metadata service

run.sh

# Get all metadata
curl -H Metadata:true "http://169.254.169.254/metadata/instance?api-version=2017-04-02"

# Get all network metadata
curl -H Metadata:true "http://169.254.169.254/metadata/instance/network?api-version=2017-04-02"

# Get public ip only
curl -H Metadata:true "http://169.254.169.254/metadata/instance/network/interface/0/ipv4/ipAddress/0/publicIpAddress?api-version=2017-04-02&format=text"

#unique VM id
curl -H Metadata:true "http://169.254.169.254/metadata/instance/compute/vmId?api-version=2017-04-02&format=text"


Invoke-RestMethod -Headers @{"Metadata"="true"} -URI http://169.254.169.254/metadata/instance?api-version=2017-04-02 -Method get
Invoke-RestMethod -Headers @{"Metadata"="true"} -URI http://169.254.169.254/metadata/instance/network?api-version=2017-04-02 -Method get

The following data categories are available through the Instance Metadata Service:

Data	Description
location	Azure Region the VM is running in
name	Name of the VM
offer	Offer information for the VM image. This value is only present for images deployed from Azure image gallery.
publisher	Publisher of the VM image
sku	Specific SKU for the VM image
version	Version of the VM image
osType	Linux or Windows
platformUpdateDomain	Update domain the VM is running in
platformFaultDomain	Fault domain the VM is running in
vmId	Unique identifier for the VM
vmSize	VM size
ipv4/privateIpAddress	Local IPv4 address of the VM
ipv4/publicIpAddress	Public IPv4 address of the VM
subnet/address	Subnet address of the VM
subnet/prefix	Subnet prefix, example 24
ipv6/ipAddress	Local IPv6 address of the VM
macAddress	VM mac address
scheduledevents	Currently in Public Preview See scheduledevents

Cloud init usage https://docs.microsoft.com/en-us/azure/virtual-machines/linux/using-cloud-init

Join a RedHat Linux VM to an Azure Active Directory Domain Service
https://docs.microsoft.com/en-us/azure/virtual-machines/linux/join-redhat-linux-vm-to-azure-active-directory-domain-service