intel / multus-cni / 545

53%

master: 71%

Pull #210

travis-ci

Support extra keys in pod network annotation

Acorrding to the de-facto standard documentation-
"All key names that do not include a period character are reserved to ensure this specification
may be extended in the future. Implementations that write keys other than those defined in this
specification must use reverse domain name notation (eg "​ org.foo.bar.key-name​ ") to
name the non-standard keys."

This commit extends the NetworkSelectionElement with a key-value map (string->string)
containg the extra, non-stadnard keys passes in the pod network annotation.
(Note - only keys wih a period character are considered as extra keys).

The extra keys and their values are passed to the relevant cni plugin via the CNI_ARGS
environment variable using the following format -
$CNI_ARGS=$CNI_ARGS;key.1=value1;key.2=value2;

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