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(https://github.com/kubernetes/contrib/tree/master/mungegithub)

copied from https://github.com/kubernetes/kubernetes.git, branch master,
last commit is 1bc5b822cd566321c115d4ebac5d97cfd347d687
This commit is contained in:
Kubernetes Publisher
2016-11-11 03:39:04 +00:00
parent 24b73253cd
commit ae6775eeec
305 changed files with 13010 additions and 8421 deletions
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58
discovery/helper.go
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@@ -22,7 +22,6 @@ import (
"k8s.io/client-go/pkg/api/unversioned"
"k8s.io/client-go/pkg/util/sets"
"k8s.io/client-go/pkg/version"
"k8s.io/client-go/rest"
// Import solely to initialize client auth plugins.
_ "k8s.io/client-go/plugin/pkg/client/auth"
)
@@ -30,14 +29,7 @@ import (
// MatchesServerVersion queries the server to compares the build version
// (git hash) of the client with the server's build version. It returns an error
// if it failed to contact the server or if the versions are not an exact match.
func MatchesServerVersion(client DiscoveryInterface, c *rest.Config) error {
var err error
if client == nil {
client, err = NewDiscoveryClientForConfig(c)
if err != nil {
return err
}
}
func MatchesServerVersion(client DiscoveryInterface) error {
cVer := version.Get()
sVer, err := client.ServerVersion()
if err != nil {
@@ -55,19 +47,9 @@ func MatchesServerVersion(client DiscoveryInterface, c *rest.Config) error {
// a version that both client and server support.
// - If no version is provided, try registered client versions in order of
// preference.
// - If version is provided, but not default config (explicitly requested via
// commandline flag), and is unsupported by the server, print a warning to
// stderr and try client's registered versions in order of preference.
// - If version is config default, and the server does not support it,
// - If version is provided and the server does not support it,
// return an error.
func NegotiateVersion(client DiscoveryInterface, c *rest.Config, requestedGV *unversioned.GroupVersion, clientRegisteredGVs []unversioned.GroupVersion) (*unversioned.GroupVersion, error) {
var err error
if client == nil {
client, err = NewDiscoveryClientForConfig(c)
if err != nil {
return nil, err
}
}
func NegotiateVersion(client DiscoveryInterface, requiredGV *unversioned.GroupVersion, clientRegisteredGVs []unversioned.GroupVersion) (*unversioned.GroupVersion, error) {
clientVersions := sets.String{}
for _, gv := range clientRegisteredGVs {
clientVersions.Insert(gv.String())
@@ -84,37 +66,23 @@ func NegotiateVersion(client DiscoveryInterface, c *rest.Config, requestedGV *un
serverVersions.Insert(v)
}
// If no version requested, use config version (may also be empty).
// make a copy of the original so we don't risk mutating input here or in the returned value
var preferredGV *unversioned.GroupVersion
switch {
case requestedGV != nil:
t := *requestedGV
preferredGV = &t
case c.GroupVersion != nil:
t := *c.GroupVersion
preferredGV = &t
}
// If version explicitly requested verify that both client and server support it.
// If server does not support warn, but try to negotiate a lower version.
if preferredGV != nil {
if !clientVersions.Has(preferredGV.String()) {
return nil, fmt.Errorf("client does not support API version %q; client supported API versions: %v", preferredGV, clientVersions)
if requiredGV != nil {
if !clientVersions.Has(requiredGV.String()) {
return nil, fmt.Errorf("client does not support API version %q; client supported API versions: %v", requiredGV, clientVersions)
}
// If the server supports no versions, then we should just use the preferredGV
// This can happen because discovery fails due to 403 Forbidden errors
if len(serverVersions) == 0 {
return preferredGV, nil
return requiredGV, nil
}
if serverVersions.Has(preferredGV.String()) {
return preferredGV, nil
if serverVersions.Has(requiredGV.String()) {
return requiredGV, nil
}
// If we are using an explicit config version the server does not support, fail.
if (c.GroupVersion != nil) && (*preferredGV == *c.GroupVersion) {
return nil, fmt.Errorf("server does not support API version %q", preferredGV)
}
return nil, fmt.Errorf("server does not support API version %q", requiredGV)
}
for _, clientGV := range clientRegisteredGVs {
@@ -130,6 +98,12 @@ func NegotiateVersion(client DiscoveryInterface, c *rest.Config, requestedGV *un
return &t, nil
}
}
// if we have no server versions and we have no required version, choose the first clientRegisteredVersion
if len(serverVersions) == 0 && len(clientRegisteredGVs) > 0 {
return &clientRegisteredGVs[0], nil
}
return nil, fmt.Errorf("failed to negotiate an api version; server supports: %v, client supports: %v",
serverVersions, clientVersions)
}