EC2 Metadata of instance

ec2-metadata Options

Options:
	  --all                     Show all metadata information for this host (also default).
	  -a/--ami-id               The AMI ID used to launch this instance
	  -l/--ami-launch-index     The index of this instance in the reservation (per AMI).
	  -m/--ami-manifest-path    The manifest path of the AMI with which the instance was launched.
	  -n/--ancestor-ami-ids     The AMI IDs of any instances that were rebundled to create this AMI.
	  -b/--block-device-mapping Defines native device names to use when exposing virtual devices.
	  -i/--instance-id          The ID of this instance
	  -t/--instance-type        The type of instance to launch. For more information, see Instance Types.
	  -h/--local-hostname       The local hostname of the instance.
	  -o/--local-ipv4           Public IP address if launched with direct addressing; private IP address if launched with public addressing.
	  -k/--kernel-id            The ID of the kernel launched with this instance, if applicable.
	  -z/--availability-zone    The availability zone in which the instance launched. Same as placement
	  -c/--product-codes        Product codes associated with this instance.
	  -p/--public-hostname      The public hostname of the instance.
	  -v/--public-ipv4          NATted public IP Address
	  -u/--public-keys          Public keys. Only available if supplied at instance launch time
	  -r/--ramdisk-id           The ID of the RAM disk launched with this instance, if applicable.
	  -e/--reservation-id       ID of the reservation.
	  -s/--security-groups      Names of the security groups the instance is launched in. Only available if supplied at instance launch time
	  -d/--user-data            User-supplied data.Only available if supplied at instance launch time.

ec2metadata

root@ip-172-31-17-16:~# uname -a
Linux ip-172-31-17-16 4.4.0-1048-aws #57-Ubuntu SMP Tue Jan 9 21:45:57 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

root@ip-172-31-17-16:~# ec2metadata
ami-id: ami-e6245b9a
ami-launch-index: 0
ami-manifest-path: (unknown)
ancestor-ami-ids: unavailable
availability-zone: ap-southeast-1a
block-device-mapping: ami
root
instance-action: none
instance-id: i-06f869c066c
instance-type: t2.medium
local-hostname: ip-172-31-17-16.ap-southeast-1.compute.internal
local-ipv4: 172.31.17.16
kernel-id: unavailable
mac: unavailable
profile: default-hvm
product-codes: unavailable
public-hostname: ec2-52-221-219-4.ap-southeast-1.compute.amazonaws.com
public-ipv4: 52.221.219.4
public-keys: unavailable
ramdisk-id: unavailable
reserveration-id: unavailable
security-groups: launch-wizard-18
user-data: unavailable