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Update the auth spec scope grammar to reflect the fact that hostnames are optionally supported.

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Signed-off-by: cyli <cyli@twistedmatrix.com>
This commit is contained in:
cyli 2016-05-11 13:41:58 -07:00
parent e69f108924
commit 8854eed7ab
1 changed files with 13 additions and 5 deletions
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18
docs/spec/auth/scope.md
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@ -56,7 +56,7 @@ it.
The resource name represent the name which identifies a resource for a resource
provider. A resource is identified by this name and the provided resource type.
An example of a resource name would be the name component of an image tag, such
as "samalba/myapp".
as "samalba/myapp" or "hostname/samalba/myapp".
### Resource Actions
@ -83,16 +83,24 @@ scopes.
scope := resourcescope [ ' ' resourcescope ]*
resourcescope := resourcetype ":" resourcename ":" action [ ',' action ]*
resourcetype := /[a-z]*/
resourcename := component [ '/' component ]*
resourcename := [ hostname '/' ] component [ '/' component ]*
hostname := hostcomponent ['.' hostcomponent]* [':' port-number]
hostcomponent := /([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])/
port-number := /[0-9]+/
action := /[a-z]*/
component := alpha-numeric [ separator alpha-numeric ]*
alpha-numeric := /[a-z0-9]+/
separator := /[_.]|__|[-]*/
```
Full reference grammar is defined
(here)[https://godoc.org/github.com/docker/distribution/reference]. Currently
the scope name grammar is a subset of the reference grammar without support
for hostnames.
[here](https://godoc.org/github.com/docker/distribution/reference). Currently
the scope name grammar is a subset of the reference grammar.
> **NOTE:** that the `resourcename` may contain one `:` due to a possible port
> number in the hostname component of the `resourcename`, so a naive
> implementation that interprets the first three `:`-delimited tokens of a
> `scope` to be the `resourcetype`, `resourcename`, and a list of `action`
> would be insufficient.
## Resource Provider Use