213 lines
6.5 KiB
Go
213 lines
6.5 KiB
Go
// Copyright 2022 DigitalOcean
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package ceph
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"net/http/httptest"
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"regexp"
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"testing"
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"github.com/google/go-cmp/cmp"
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"github.com/prometheus/client_golang/prometheus"
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"github.com/prometheus/client_golang/prometheus/promhttp"
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"github.com/sirupsen/logrus"
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"github.com/stretchr/testify/mock"
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"github.com/stretchr/testify/require"
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)
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func TestPoolInfoCollector(t *testing.T) {
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for _, tt := range []struct {
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version string
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reMatch, reUnmatch []*regexp.Regexp
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}{
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{
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version: `{"version":"ceph version 16.2.11-22-wasd (1984a8c33225d70559cdf27dbab81e3ce153f6ac) pacific (stable)"}`,
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reMatch: []*regexp.Regexp{
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regexp.MustCompile(`pool_size{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 6`),
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regexp.MustCompile(`pool_min_size{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 4`),
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regexp.MustCompile(`pool_pg_num{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 8192`),
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regexp.MustCompile(`pool_pgp_num{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 8192`),
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regexp.MustCompile(`pool_quota_max_bytes{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 1024`),
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regexp.MustCompile(`pool_quota_max_objects{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 2048`),
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regexp.MustCompile(`pool_stripe_width{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 4096`),
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regexp.MustCompile(`pool_expansion_factor{cluster="ceph",pool="rbd",profile="ec-4-2",root="non-default-root"} 1.5`),
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regexp.MustCompile(`pool_size{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 3`),
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regexp.MustCompile(`pool_min_size{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 2`),
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regexp.MustCompile(`pool_pg_num{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 16384`),
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regexp.MustCompile(`pool_pgp_num{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 16384`),
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regexp.MustCompile(`pool_quota_max_bytes{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 512`),
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regexp.MustCompile(`pool_quota_max_objects{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 1024`),
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regexp.MustCompile(`pool_stripe_width{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 4096`),
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regexp.MustCompile(`pool_expansion_factor{cluster="ceph",pool="rbd",profile="replicated-ruleset",root="default"} 3`),
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},
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reUnmatch: []*regexp.Regexp{},
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},
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} {
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func() {
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conn := setupVersionMocks(tt.version, "{}")
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conn.On("MonCommand", mock.MatchedBy(func(in interface{}) bool {
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v := map[string]interface{}{}
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err := json.Unmarshal(in.([]byte), &v)
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require.NoError(t, err)
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return cmp.Equal(v, map[string]interface{}{
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"prefix": "osd pool ls",
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"detail": "detail",
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"format": "json",
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})
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})).Return([]byte(`
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[
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{"pool_name": "rbd", "crush_rule": 1, "size": 6, "min_size": 4, "pg_num": 8192, "pg_placement_num": 8192, "quota_max_bytes": 1024, "quota_max_objects": 2048, "erasure_code_profile": "ec-4-2", "stripe_width": 4096},
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{"pool_name": "rbd", "crush_rule": 0, "size": 3, "min_size": 2, "pg_num": 16384, "pg_placement_num": 16384, "quota_max_bytes": 512, "quota_max_objects": 1024, "erasure_code_profile": "replicated-ruleset", "stripe_width": 4096}
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]`,
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), "", nil)
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conn.On("MonCommand", mock.MatchedBy(func(in interface{}) bool {
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v := map[string]interface{}{}
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err := json.Unmarshal(in.([]byte), &v)
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require.NoError(t, err)
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return cmp.Equal(v, map[string]interface{}{
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"prefix": "osd crush rule dump",
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"format": "json",
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})
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})).Return([]byte(`
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[
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{
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"rule_id": 0,
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"rule_name": "replicated_rule",
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"ruleset": 0,
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"type": 1,
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"min_size": 1,
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"max_size": 10,
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"steps": [
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{
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"num": 5,
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"op": "set_chooseleaf_tries"
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},
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{
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"op": "take",
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"item": -1,
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"item_name": "default"
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},
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{
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"op": "chooseleaf_firstn",
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"num": 0,
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"type": "host"
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},
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{
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"op": "emit"
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}
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]
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},
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{
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"rule_id": 1,
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"rule_name": "another-rule",
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"ruleset": 1,
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"type": 1,
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"min_size": 1,
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"max_size": 10,
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"steps": [
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{
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"op": "take",
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"item": -53,
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"item_name": "non-default-root"
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},
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{
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"op": "chooseleaf_firstn",
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"num": 0,
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"type": "rack"
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},
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{
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"op": "emit"
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}
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]
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}
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]`,
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), "", nil)
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conn.On("MonCommand", mock.MatchedBy(func(in interface{}) bool {
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v := map[string]interface{}{}
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err := json.Unmarshal(in.([]byte), &v)
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require.NoError(t, err)
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return cmp.Equal(v, map[string]interface{}{
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"prefix": "osd erasure-code-profile get",
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"name": "ec-4-2",
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"format": "json",
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})
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})).Return([]byte(`
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{
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"crush-device-class": "",
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"crush-failure-domain": "host",
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"crush-root": "objectdata",
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"jerasure-per-chunk-alignment": "false",
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"k": "4",
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"m": "2",
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"plugin": "jerasure",
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"technique": "reed_sol_van",
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"w": "8"
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}`,
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), "", nil)
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conn.On("MonCommand", mock.MatchedBy(func(in interface{}) bool {
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v := map[string]interface{}{}
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err := json.Unmarshal(in.([]byte), &v)
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require.NoError(t, err)
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return !cmp.Equal(v, map[string]interface{}{
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"prefix": "osd erasure-code-profile get",
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"name": "ec-4-2",
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"format": "json",
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})
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})).Return([]byte(""), "", fmt.Errorf("unknown erasure code profile"))
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e := &Exporter{Conn: conn, Cluster: "ceph", Logger: logrus.New()}
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e.cc = map[string]versionedCollector{
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"poolInfo": NewPoolInfoCollector(e),
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}
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err := prometheus.Register(e)
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require.NoError(t, err)
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defer prometheus.Unregister(e)
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server := httptest.NewServer(promhttp.Handler())
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defer server.Close()
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resp, err := http.Get(server.URL)
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require.NoError(t, err)
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defer resp.Body.Close()
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buf, err := ioutil.ReadAll(resp.Body)
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require.NoError(t, err)
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for _, re := range tt.reMatch {
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require.True(t, re.Match(buf))
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}
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for _, re := range tt.reUnmatch {
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require.False(t, re.Match(buf))
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}
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}()
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}
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}
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