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annotations.go
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/
annotations.go
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// Copyright © 2018 Heptio
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package contour
import (
"strings"
"github.com/gogo/protobuf/types"
"k8s.io/api/extensions/v1beta1"
)
const (
// set docs/annotations.md for details of how these annotations
// are applied by Contour.
annotationWebsocketRoutes = "contour.heptio.com/websocket-routes"
)
// httpAllowed returns true unless the kubernetes.io/ingress.allow-http annotation is
// present and set to false.
func httpAllowed(i *v1beta1.Ingress) bool {
return !(i.Annotations["kubernetes.io/ingress.allow-http"] == "false")
}
// websocketRoutes returns a map of websocket routes. If the value is not present, or
// malformed, then an empty map is returned.
func websocketRoutes(i *v1beta1.Ingress) map[string]*types.BoolValue {
routes := make(map[string]*types.BoolValue)
for _, v := range strings.Split(i.Annotations[annotationWebsocketRoutes], ",") {
route := strings.TrimSpace(v)
if route != "" {
routes[route] = &types.BoolValue{Value: true}
}
}
return routes
}