mirror of
https://github.com/kubernetes-sigs/prometheus-adapter.git
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a293b2bf94
Travis seems to be having issues pulling deps, so we'll have to check in the vendor directory and prevent the makefile from trying to regenerate it normally.
72 lines
2.1 KiB
Go
72 lines
2.1 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 discovery
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import (
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"net"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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)
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type Addresses interface {
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ServerAddressByClientCIDRs(net.IP) []metav1.ServerAddressByClientCIDR
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}
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// DefaultAddresses is a default implementation of Addresses that will work in most cases
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type DefaultAddresses struct {
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// CIDRRules is a list of CIDRs and Addresses to use if a client is in the range
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CIDRRules []CIDRRule
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// DefaultAddress is the address (hostname or IP and port) that should be used in
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// if no CIDR matches more specifically.
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DefaultAddress string
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}
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// CIDRRule is a rule for adding an alternate path to the master based on matching CIDR
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type CIDRRule struct {
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IPRange net.IPNet
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// Address is the address (hostname or IP and port) that should be used in
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// if this CIDR matches
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Address string
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}
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func (d DefaultAddresses) ServerAddressByClientCIDRs(clientIP net.IP) []metav1.ServerAddressByClientCIDR {
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addressCIDRMap := []metav1.ServerAddressByClientCIDR{
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{
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ClientCIDR: "0.0.0.0/0",
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ServerAddress: d.DefaultAddress,
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},
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}
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for _, rule := range d.CIDRRules {
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addressCIDRMap = append(addressCIDRMap, rule.ServerAddressByClientCIDRs(clientIP)...)
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}
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return addressCIDRMap
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}
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func (d CIDRRule) ServerAddressByClientCIDRs(clientIP net.IP) []metav1.ServerAddressByClientCIDR {
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addressCIDRMap := []metav1.ServerAddressByClientCIDR{}
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if d.IPRange.Contains(clientIP) {
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addressCIDRMap = append(addressCIDRMap, metav1.ServerAddressByClientCIDR{
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ClientCIDR: d.IPRange.String(),
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ServerAddress: d.Address,
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})
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}
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return addressCIDRMap
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}
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