forked from kubernetes/kops
/
addons.go
84 lines (72 loc) · 1.88 KB
/
addons.go
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package channels
import (
"fmt"
"github.com/golang/glog"
"k8s.io/kops/channels/pkg/api"
"k8s.io/kops/upup/pkg/fi/utils"
"k8s.io/kops/util/pkg/vfs"
"net/url"
"strings"
)
type Addons struct {
ChannelName string
ChannelLocation url.URL
APIObject *api.Addons
}
func LoadAddons(name string, location *url.URL) (*Addons, error) {
glog.V(2).Infof("Loading addons channel from %q", location)
data, err := vfs.Context.ReadFile(location.String())
if err != nil {
return nil, fmt.Errorf("error reading addons from %q: %v", location, err)
}
return ParseAddons(name, location, data)
}
func ParseAddons(name string, location *url.URL, data []byte) (*Addons, error) {
// Yaml can't parse empty strings
configString := string(data)
configString = strings.TrimSpace(configString)
apiObject := &api.Addons{}
if configString != "" {
err := utils.YamlUnmarshal([]byte(configString), apiObject)
if err != nil {
return nil, fmt.Errorf("error parsing addons: %v", err)
}
}
return &Addons{ChannelName: name, ChannelLocation: *location, APIObject: apiObject}, nil
}
func (a *Addons) GetCurrent() ([]*Addon, error) {
all, err := a.All()
if err != nil {
return nil, err
}
specs := make(map[string]*Addon)
for _, addon := range all {
name := addon.Name
existing := specs[name]
if existing == nil || addon.ChannelVersion().Replaces(existing.ChannelVersion()) {
specs[name] = addon
}
}
var addons []*Addon
for _, addon := range specs {
addons = append(addons, addon)
}
return addons, nil
}
func (a *Addons) All() ([]*Addon, error) {
var addons []*Addon
for _, s := range a.APIObject.Spec.Addons {
name := a.APIObject.Name
if s.Name != nil {
name = *s.Name
}
addon := &Addon{
ChannelName: a.ChannelName,
ChannelLocation: a.ChannelLocation,
Spec: s,
Name: name,
}
addons = append(addons, addon)
}
return addons, nil
}