forked from openshift/origin
/
qualify.go
46 lines (37 loc) · 1.05 KB
/
qualify.go
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package imagequalify
import (
"path"
"github.com/openshift/origin/pkg/image/admission/imagequalify/api"
"github.com/openshift/origin/pkg/image/admission/imagequalify/api/validation"
)
// matchImage attempts to match image against each pattern defined in
// rules. Returns the Rule that matched, or nil if no match was found.
func matchImage(image string, rules []api.ImageQualifyRule) *api.ImageQualifyRule {
for i := range rules {
if ok, _ := path.Match(rules[i].Pattern, image); ok {
return &rules[i]
}
}
return nil
}
func qualifyImage(image string, rules []api.ImageQualifyRule) (string, error) {
domain, _, err := validation.ParseDomainName(image)
if err != nil {
return "", err
}
if domain != "" {
// image is already qualified
return image, nil
}
matched := matchImage(image, rules)
if matched == nil {
// no match, return as-is.
return image, nil
}
qname := matched.Domain + "/" + image
// Revalidate qualified image
if _, _, err := validation.ParseDomainName(qname); err != nil {
return "", err
}
return qname, nil
}