mirror of
https://git.mirrors.martin98.com/https://github.com/ceph/ceph-csi.git
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bec6090996
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
94 lines
3.2 KiB
Go
94 lines
3.2 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package service
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import (
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"fmt"
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"strings"
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api "k8s.io/kubernetes/pkg/apis/core"
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utilnet "k8s.io/utils/net"
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)
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const (
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defaultLoadBalancerSourceRanges = "0.0.0.0/0"
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)
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// IsAllowAll checks whether the utilnet.IPNet allows traffic from 0.0.0.0/0
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func IsAllowAll(ipnets utilnet.IPNetSet) bool {
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for _, s := range ipnets.StringSlice() {
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if s == "0.0.0.0/0" {
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return true
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}
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}
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return false
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}
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// GetLoadBalancerSourceRanges first try to parse and verify LoadBalancerSourceRanges field from a service.
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// If the field is not specified, turn to parse and verify the AnnotationLoadBalancerSourceRangesKey annotation from a service,
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// extracting the source ranges to allow, and if not present returns a default (allow-all) value.
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func GetLoadBalancerSourceRanges(service *api.Service) (utilnet.IPNetSet, error) {
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var ipnets utilnet.IPNetSet
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var err error
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// if SourceRange field is specified, ignore sourceRange annotation
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if len(service.Spec.LoadBalancerSourceRanges) > 0 {
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specs := service.Spec.LoadBalancerSourceRanges
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ipnets, err = utilnet.ParseIPNets(specs...)
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if err != nil {
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return nil, fmt.Errorf("service.Spec.LoadBalancerSourceRanges: %v is not valid. Expecting a list of IP ranges. For example, 10.0.0.0/24. Error msg: %v", specs, err)
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}
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} else {
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val := service.Annotations[api.AnnotationLoadBalancerSourceRangesKey]
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val = strings.TrimSpace(val)
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if val == "" {
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val = defaultLoadBalancerSourceRanges
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}
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specs := strings.Split(val, ",")
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ipnets, err = utilnet.ParseIPNets(specs...)
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if err != nil {
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return nil, fmt.Errorf("%s: %s is not valid. Expecting a comma-separated list of source IP ranges. For example, 10.0.0.0/24,192.168.2.0/24", api.AnnotationLoadBalancerSourceRangesKey, val)
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}
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}
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return ipnets, nil
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}
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// ExternallyAccessible checks if service is externally accessible.
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func ExternallyAccessible(service *api.Service) bool {
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return service.Spec.Type == api.ServiceTypeLoadBalancer ||
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service.Spec.Type == api.ServiceTypeNodePort ||
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(service.Spec.Type == api.ServiceTypeClusterIP && len(service.Spec.ExternalIPs) > 0)
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}
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// RequestsOnlyLocalTraffic checks if service requests OnlyLocal traffic.
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func RequestsOnlyLocalTraffic(service *api.Service) bool {
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if service.Spec.Type != api.ServiceTypeLoadBalancer &&
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service.Spec.Type != api.ServiceTypeNodePort {
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return false
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}
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return service.Spec.ExternalTrafficPolicy == api.ServiceExternalTrafficPolicyLocal
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}
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// NeedsHealthCheck checks if service needs health check.
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func NeedsHealthCheck(service *api.Service) bool {
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if service.Spec.Type != api.ServiceTypeLoadBalancer {
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return false
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}
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return RequestsOnlyLocalTraffic(service)
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}
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