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api,libcni: add network config list-based plugin chaining

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Using a new ".configlist" file format that allows specifying
a list of CNI network configurations to run, add new libcni
helper functions to call each plugin in the list, injecting
the overall name, CNI version, and previous plugin's Result
structure into the configuration of the next plugin.
This commit is contained in:
Dan Williams 2016-12-16 18:56:39 -06:00
parent 06fd1369aa
commit 13534e505c
1 changed files with 12 additions and 3 deletions
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15
types/types.go
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@ -59,14 +59,23 @@ func (n *IPNet) UnmarshalJSON(data []byte) error {
type NetConf struct { type NetConf struct {
CNIVersion string `json:"cniVersion,omitempty"` CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"` Name string `json:"name,omitempty"`
Type string `json:"type,omitempty"` Type string `json:"type,omitempty"`
IPAM struct { PrevResult *Result `json:"prevResult,omitempty"`
IPAM struct {
Type string `json:"type,omitempty"` Type string `json:"type,omitempty"`
} `json:"ipam,omitempty"` } `json:"ipam,omitempty"`
DNS DNS `json:"dns"` DNS DNS `json:"dns"`
} }
// NetConfList describes an ordered list of networks.
type NetConfList struct {
CNIVersion string `json:"cniVersion,omitempty"`
Name string `json:"name,omitempty"`
Plugins []*NetConf `json:"plugins,omitempty"`
}
// Result is what gets returned from the plugin (via stdout) to the caller // Result is what gets returned from the plugin (via stdout) to the caller
type Result struct { type Result struct {
IP4 *IPConfig `json:"ip4,omitempty"` IP4 *IPConfig `json:"ip4,omitempty"`