http://169.254.169.254/latest/meta-data

ami-id
ami-launch-index
ami-manifest-path
block-device-mapping/
hostname
instance-action
instance-id
instance-type
kernel-id
local-hostname
local-ipv4
mac
metrics/
network/
placement/
profile
public-hostname
public-ipv4
public-keys/
ramdisk-id
reservation-id

block-device-mapping/
ami
ephemeral0
ephemeral1
ephemeral2
ephemeral3

metrics/
vhostmd

network/interfaces/macs/*/
device-number
local-hostname
local-ipv4s
mac
owner-id
public-hostname
public-ipv4s

placement/availability-zone
us-east-1c

public-keys/
0=test-keypair