cloud-init/doc/examples/cloud-config-datasources.txt

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# Documentation on data sources configuration options
datasource:
# Ec2
Ec2:
# timeout: the timeout value for a request at metadata service
timeout : 50
# The length in seconds to wait before giving up on the metadata
# service. The actual total wait could be up to
# len(resolvable_metadata_urls)*timeout
max_wait : 120
#metadata_url: a list of URLs to check for metadata services
metadata_urls:
- http://169.254.169.254:80
- http://instance-data:8773
MAAS:
timeout : 50
max_wait : 120
# there are no default values for metadata_url or oauth credentials
# If no credentials are present, non-authed attempts will be made.
metadata_url: http://mass-host.localdomain/source
consumer_key: Xh234sdkljf
token_key: kjfhgb3n
token_secret: 24uysdfx1w4
NoCloud:
# default seedfrom is None
# if found, then it should contain a url with:
# <url>/user-data and <url>/meta-data
# seedfrom: http://my.example.com/i-abcde
seedfrom: None
# fs_label: the label on filesystems to be searched for NoCloud source
fs_label: cidata
# these are optional, but allow you to basically provide a datasource
# right here
user-data: |
# This is the user-data verbatum
meta-data:
instance-id: i-87018aed
local-hostname: myhost.internal