traefik/pkg/provider/kubernetes/k8s/parser.go

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package k8s
import (
"fmt"
"regexp"
"strings"
"github.com/traefik/traefik/v2/pkg/log"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/kubernetes/scheme"
)
// MustParseYaml parses a YAML to objects.
func MustParseYaml(content []byte) []runtime.Object {
acceptedK8sTypes := regexp.MustCompile(`^(Namespace|Deployment|Endpoints|Service|Ingress|IngressRoute|IngressRouteTCP|IngressRouteUDP|Middleware|MiddlewareTCP|Secret|TLSOption|TLSStore|TraefikService|IngressClass|ServersTransport|GatewayClass|Gateway|HTTPRoute|TCPRoute|TLSRoute)$`)
files := strings.Split(string(content), "---\n")
retVal := make([]runtime.Object, 0, len(files))
for _, file := range files {
if file == "\n" || file == "" {
continue
}
decode := scheme.Codecs.UniversalDeserializer().Decode
obj, groupVersionKind, err := decode([]byte(file), nil, nil)
if err != nil {
panic(fmt.Sprintf("Error while decoding YAML object. Err was: %s", err))
}
if !acceptedK8sTypes.MatchString(groupVersionKind.Kind) {
log.WithoutContext().Debugf("The custom-roles configMap contained K8s object types which are not supported! Skipping object with type: %s", groupVersionKind.Kind)
} else {
retVal = append(retVal, obj)
}
}
return retVal
}