IMDS.
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Scaleway instance metadata service.
The service answers on the link-local address 169.254.42.42, at the path
/conf?format=json. No request needs an authentication header. The answer is
one JSON document. The documented IPv6 address fd00:42::42 is available
through the :base_url option.
The document reports the zone, for example fr-par-1. The identity derives
the region from the zone, for example fr-par. The document reports the
commercial type as the machine size and the organization as the owner scope.
Detection needs the Scaleway address 169.254.42.42 and a JSON document with
the keys id and commercial_type.
The user data paths of Scaleway demand a source port below 1024. The default transport cannot use a privileged port, so user data is out of scope.
Summary
Functions
Return the metadata path of the JSON document.
Derive the region from a Scaleway zone name.
Functions
@spec path() :: binary()
Return the metadata path of the JSON document.
Derive the region from a Scaleway zone name.
A zone name carries a trailing numeric segment, for example fr-par-1. The
region is the part before that segment. A name of another shape has no known
region.
Examples
iex> IMDS.Providers.Scaleway.region_from_zone("fr-par-1")
"fr-par"
iex> IMDS.Providers.Scaleway.region_from_zone("nl-ams-3")
"nl-ams"
iex> IMDS.Providers.Scaleway.region_from_zone("par1")
nil
iex> IMDS.Providers.Scaleway.region_from_zone(nil)
nil