// Copyright 2016 The Prometheus Authors // 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 triton import ( "fmt" "net" "net/http" "net/http/httptest" "net/url" "strconv" "testing" "time" "github.com/prometheus/common/log" "github.com/prometheus/common/model" "github.com/prometheus/prometheus/config" "github.com/stretchr/testify/assert" "golang.org/x/net/context" ) var ( conf = config.TritonSDConfig{ Account: "testAccount", DNSSuffix: "triton.example.com", Endpoint: "127.0.0.1", Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{InsecureSkipVerify: true}, } badconf = config.TritonSDConfig{ Account: "badTestAccount", DNSSuffix: "bad.triton.example.com", Endpoint: "127.0.0.1", Port: 443, Version: 1, RefreshInterval: 1, TLSConfig: config.TLSConfig{ InsecureSkipVerify: false, KeyFile: "shouldnotexist.key", CAFile: "shouldnotexist.ca", CertFile: "shouldnotexist.cert", }, } logger = log.Base() ) func TestTritonSDNew(t *testing.T) { td, err := New(logger, &conf) assert.Nil(t, err) assert.NotNil(t, td) assert.NotNil(t, td.client) assert.NotNil(t, td.interval) assert.NotNil(t, td.logger) assert.Equal(t, logger, td.logger, "td.logger equals logger") assert.NotNil(t, td.sdConfig) assert.Equal(t, conf.Account, td.sdConfig.Account) assert.Equal(t, conf.DNSSuffix, td.sdConfig.DNSSuffix) assert.Equal(t, conf.Endpoint, td.sdConfig.Endpoint) assert.Equal(t, conf.Port, td.sdConfig.Port) } func TestTritonSDNewBadConfig(t *testing.T) { td, err := New(logger, &badconf) assert.NotNil(t, err) assert.Nil(t, td) } func TestTritonSDRun(t *testing.T) { var ( td, err = New(logger, &conf) ch = make(chan []*config.TargetGroup) ctx, cancel = context.WithCancel(context.Background()) ) assert.Nil(t, err) assert.NotNil(t, td) go td.Run(ctx, ch) select { case <-time.After(60 * time.Millisecond): // Expected. case tgs := <-ch: t.Fatalf("Unexpected target groups in triton discovery: %s", tgs) } cancel() } func TestTritonSDRefreshNoTargets(t *testing.T) { tgts := testTritonSDRefresh(t, "{\"containers\":[]}") assert.Nil(t, tgts) } func TestTritonSDRefreshMultipleTargets(t *testing.T) { var ( dstr = `{"containers":[ { "server_uuid":"44454c4c-5000-104d-8037-b7c04f5a5131", "vm_alias":"server01", "vm_image_uuid":"7b27a514-89d7-11e6-bee6-3f96f367bee7", "vm_uuid":"ad466fbf-46a2-4027-9b64-8d3cdb7e9072" }, { "server_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6", "vm_alias":"server02", "vm_image_uuid":"a5894692-bd32-4ca1-908a-e2dda3c3a5e6", "vm_uuid":"7b27a514-89d7-11e6-bee6-3f96f367bee7" }] }` ) tgts := testTritonSDRefresh(t, dstr) assert.NotNil(t, tgts) assert.Equal(t, 2, len(tgts)) } func TestTritonSDRefreshNoServer(t *testing.T) { var ( td, err = New(logger, &conf) ) assert.Nil(t, err) assert.NotNil(t, td) tg, rerr := td.refresh() assert.NotNil(t, rerr) assert.Contains(t, rerr.Error(), "an error occurred when requesting targets from the discovery endpoint.") assert.NotNil(t, tg) assert.Nil(t, tg.Targets) } func testTritonSDRefresh(t *testing.T, dstr string) []model.LabelSet { var ( td, err = New(logger, &conf) s = httptest.NewTLSServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { fmt.Fprintln(w, dstr) })) ) defer s.Close() u, uperr := url.Parse(s.URL) assert.Nil(t, uperr) assert.NotNil(t, u) host, strport, sherr := net.SplitHostPort(u.Host) assert.Nil(t, sherr) assert.NotNil(t, host) assert.NotNil(t, strport) port, atoierr := strconv.Atoi(strport) assert.Nil(t, atoierr) assert.NotNil(t, port) td.sdConfig.Port = port assert.Nil(t, err) assert.NotNil(t, td) tg, err := td.refresh() assert.Nil(t, err) assert.NotNil(t, tg) return tg.Targets }