/
e2e.go
177 lines (153 loc) · 3.97 KB
/
e2e.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
package main
import (
"compress/gzip"
"context"
"errors"
"flag"
"fmt"
"io"
"net/http"
"os"
"os/exec"
"sync"
"time"
"google.golang.org/protobuf/proto"
"github.com/gorilla/mux"
"github.com/sirupsen/logrus"
"github.com/castai/egressd/pb"
)
var (
imageTag = flag.String("image-tag", "", "Egressd docker image tag")
timeout = flag.Duration("timeout", 90*time.Second, "Test timeout")
ns = flag.String("ns", "castai-egressd-e2e", "Namespace")
)
func main() {
flag.Parse()
log := logrus.New()
if err := run(log); err != nil {
log.Error(err)
time.Sleep(5 * time.Second)
os.Exit(-1)
}
}
func run(log logrus.FieldLogger) error {
ctx, cancel := context.WithTimeout(context.Background(), *timeout)
defer cancel()
if *imageTag == "" {
return errors.New("image-tag flag is not set")
}
api := &mockAPI{log: log}
go api.start()
out, err := installChart(*ns, *imageTag)
if err != nil {
return fmt.Errorf("installing chart: %w: %s", err, string(out))
}
fmt.Printf("installed chart:\n%s\n", out)
if err := api.assertMetricsReceived(ctx); err != nil {
return err
}
return nil
}
func installChart(ns, imageTag string) ([]byte, error) {
fmt.Printf("installing egressd chart with image tag %q", imageTag)
podIP := os.Getenv("POD_IP")
apiURL := fmt.Sprintf("http://%s:8090", podIP)
repo := "ghcr.io/castai/egressd/egressd"
if imageTag == "local" {
repo = "egressd"
}
//nolint:gosec
cmd := exec.Command("/bin/sh", "-c", fmt.Sprintf(
`helm upgrade --install castai-egressd ./charts/egressd \
-n %s --create-namespace \
--set collector.image.repository=%s \
--set collector.image.tag=%s \
--set collector.extraArgs.log-level=debug \
--set collector.hostNetwork=true \
--set exporter.image.repository=%s \
--set exporter.image.tag=%s \
--set exporter.structuredConfig.exportInterval=10s \
--set exporter.extraArgs.log-level=debug \
--set castai.apiURL=%s \
--set castai.clusterID=e2e \
--set castai.apiKey=key \
--wait --timeout=1m`,
ns,
repo,
imageTag,
repo+"-exporter",
imageTag,
apiURL,
))
return cmd.CombinedOutput()
}
type mockAPI struct {
log logrus.FieldLogger
mu sync.Mutex
receivedMetricsBatchesBytes [][]byte
}
func (m *mockAPI) start() {
router := mux.NewRouter()
router.HandleFunc("/v1/kubernetes/clusters/{cluster_id}/egressd-metrics", func(w http.ResponseWriter, r *http.Request) {
vars := mux.Vars(r)
clusterID := vars["cluster_id"]
gz, err := gzip.NewReader(r.Body)
if err != nil {
m.log.Errorf("gzip reader: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
defer gz.Close()
rawBody, err := io.ReadAll(gz)
if err != nil {
m.log.Errorf("read body: %v", err)
w.WriteHeader(http.StatusInternalServerError)
return
}
fmt.Printf("received metrics batch, cluster_id=%s, size_bytes=%d\n", clusterID, len(rawBody))
m.mu.Lock()
m.receivedMetricsBatchesBytes = append(m.receivedMetricsBatchesBytes, rawBody)
m.mu.Unlock()
w.WriteHeader(http.StatusAccepted)
})
if err := http.ListenAndServe(":8090", router); err != nil { //nolint:gosec
m.log.Fatal(err)
}
}
func (m *mockAPI) getPodNetworkMetrics() ([]*pb.PodNetworkMetric, error) {
m.mu.Lock()
defer m.mu.Unlock()
var res []*pb.PodNetworkMetric
for _, chunk := range m.receivedMetricsBatchesBytes {
var batch pb.PodNetworkMetricBatch
if err := proto.Unmarshal(chunk, &batch); err != nil {
return nil, err
}
res = append(res, batch.Items...)
}
return res, nil
}
func (m *mockAPI) assertMetricsReceived(ctx context.Context) error {
for {
select {
case <-time.After(3 * time.Second):
logs, err := m.getPodNetworkMetrics()
if err != nil {
return err
}
if len(logs) == 0 {
continue
}
logEntry := logs[0]
if logEntry.SrcIp == "" {
return errors.New("source ip is missing")
}
if logEntry.DstIp == "" {
return errors.New("dest ip is missing")
}
return nil
case <-ctx.Done():
return fmt.Errorf("waiting for received logs: %w", ctx.Err())
}
}
}