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719c57a29d
This is a simple solution to having the proxy keep up to date with the state of the cluster. Basically, it uses the cluster configuration provided at start up (i.e. with `-initial-cluster-state`) to determine where to reach peer(s) in the cluster, and then it will periodically hit the `/members` endpoint of those peer(s) (using the same mechanism that `-cluster-state=existing` does to initialise) to update the set of valid client URLs to proxy to. This does not address discovery (#1376), and it would probably be better to update the set of proxyURLs dynamically whenever we fetch the new state of the cluster; but it needs a bit more thinking to have this done in a clean way with the proxy interface. Example in Procfile works again.
93 lines
2.1 KiB
Go
93 lines
2.1 KiB
Go
/*
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Copyright 2014 CoreOS, Inc.
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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 proxy
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import (
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"net/url"
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"reflect"
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"testing"
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)
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func TestNewDirectorScheme(t *testing.T) {
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tests := []struct {
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urls []string
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want []string
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}{
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{
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urls: []string{"http://192.0.2.8:4002", "http://example.com:8080"},
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want: []string{"http://192.0.2.8:4002", "http://example.com:8080"},
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},
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{
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urls: []string{"https://192.0.2.8:4002", "https://example.com:8080"},
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want: []string{"https://192.0.2.8:4002", "https://example.com:8080"},
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},
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// accept urls without a port
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{
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urls: []string{"http://192.0.2.8"},
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want: []string{"http://192.0.2.8"},
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},
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// accept urls even if they are garbage
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{
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urls: []string{"http://."},
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want: []string{"http://."},
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},
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}
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for i, tt := range tests {
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uf := func() []string {
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return tt.urls
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}
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got := newDirector(uf)
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for ii, wep := range tt.want {
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gep := got.ep[ii].URL.String()
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if !reflect.DeepEqual(wep, gep) {
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t.Errorf("#%d: want endpoints[%d] = %#v, got = %#v", i, ii, wep, gep)
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}
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}
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}
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}
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func TestDirectorEndpointsFiltering(t *testing.T) {
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d := director{
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ep: []*endpoint{
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&endpoint{
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URL: url.URL{Scheme: "http", Host: "192.0.2.5:5050"},
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Available: false,
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},
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&endpoint{
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URL: url.URL{Scheme: "http", Host: "192.0.2.4:4000"},
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Available: true,
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},
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},
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}
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got := d.endpoints()
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want := []*endpoint{
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&endpoint{
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URL: url.URL{Scheme: "http", Host: "192.0.2.4:4000"},
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Available: true,
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},
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}
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if !reflect.DeepEqual(want, got) {
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t.Fatalf("directed to incorrect endpoint: want = %#v, got = %#v", want, got)
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}
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}
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