forked from ethereum/hive
-
Notifications
You must be signed in to change notification settings - Fork 0
/
hive.go
374 lines (332 loc) · 11.5 KB
/
hive.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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
package main
import (
"context"
"errors"
"flag"
"fmt"
"net"
"net/http"
"os"
"os/signal"
"path/filepath"
"regexp"
"strconv"
"strings"
"time"
"github.com/ethereum/hive/internal/libdocker"
"github.com/ethereum/hive/internal/libhive"
"gopkg.in/inconshreveable/log15.v2"
)
func main() {
var (
testResultsRoot = flag.String("results-root", "workspace/logs", "Target `directory` for results files and logs.")
loglevelFlag = flag.Int("loglevel", 3, "Log `level` for system events. Supports values 0-5.")
dockerEndpoint = flag.String("docker.endpoint", "unix:///var/run/docker.sock", "Endpoint of the local Docker daemon.")
dockerNoCache = flag.String("docker.nocache", "", "Regular `expression` selecting the docker images to forcibly rebuild.")
dockerPull = flag.Bool("docker.pull", false, "Refresh base images when building images.")
dockerOutput = flag.Bool("docker.output", false, "Relay all docker output to stderr.")
simPattern = flag.String("sim", "", "Regular `expression` selecting the simulators to run.")
simTestPattern = flag.String("sim.limit", "", "Regular `expression` selecting tests/suites (interpreted by simulators).")
simParallelism = flag.Int("sim.parallelism", 1, "Max `number` of parallel clients/containers (interpreted by simulators).")
simTestLimit = flag.Int("sim.testlimit", 0, "[DEPRECATED] Max `number` of tests to execute per client (interpreted by simulators).")
simTimeLimit = flag.Duration("sim.timelimit", 0, "Simulation `timeout`. Hive aborts the simulator if it exceeds this time.")
simLogLevel = flag.Int("sim.loglevel", 3, "Selects log `level` of client instances. Supports values 0-5.")
simDevMode = flag.Bool("dev", false, "Only starts the simulator API endpoint (listening at 127.0.0.1:3000 by default) without starting any simulators.")
simDevModeAPIEndpoint = flag.String("dev.addr", "127.0.0.1:3000", "Endpoint that the simulator API listens on")
clients = flag.String("client", "go-ethereum", "Comma separated `list` of clients to use. Client names in the list may be given as\n"+
"just the client name, or a client_branch specifier. If a branch name is supplied,\n"+
"the client image will use the given git branch or docker tag. Multiple instances of\n"+
"a single client type may be requested with different branches.\n"+
"Example: \"besu_latest,besu_20.10.2\"")
clientTimeout = flag.Duration("client.checktimelimit", 3*time.Minute, "The `timeout` of waiting for clients to open up the RPC port.\n"+
"If a very long chain is imported, this timeout may need to be quite large.\n"+
"A lower value means that hive won't wait as long in case the node crashes and\n"+
"never opens the RPC port.")
)
// Parse the flags and configure the logger.
flag.Parse()
log15.Root().SetHandler(log15.LvlFilterHandler(log15.Lvl(*loglevelFlag), log15.StreamHandler(os.Stderr, log15.TerminalFormat())))
if *simTestLimit > 0 {
log15.Warn("Option --sim.testlimit is deprecated and will have no effect.")
}
// Get the list of simulators.
inv, err := libhive.LoadInventory(".")
if err != nil {
fatal(err)
}
simList, err := inv.MatchSimulators(*simPattern)
if err != nil {
fatal("bad --sim regular expression:", err)
}
if *simPattern != "" && len(simList) == 0 {
fatal("no simulators for pattern", *simPattern)
}
// Create the docker backends.
dockerConfig := &libdocker.Config{
Inventory: inv,
PullEnabled: *dockerPull,
}
if *dockerNoCache != "" {
re, err := regexp.Compile(*dockerNoCache)
if err != nil {
fatal("bad --docker-nocache regular expression:", err)
}
dockerConfig.NoCachePattern = re
}
if *dockerOutput {
dockerConfig.ContainerOutput = os.Stderr
dockerConfig.BuildOutput = os.Stderr
}
builder, containerBackend, err := libdocker.Connect(*dockerEndpoint, dockerConfig)
if err != nil {
fatal(err)
}
// Set up the context for CLI interrupts.
sig := make(chan os.Signal, 1)
signal.Notify(sig, os.Interrupt)
ctx, cancel := context.WithCancel(context.Background())
go func() {
<-sig
cancel()
}()
// Run.
runner := simRunner{
inv: inv,
builder: builder,
container: containerBackend,
env: libhive.SimEnv{
LogDir: *testResultsRoot,
SimLogLevel: *simLogLevel,
SimTestPattern: *simTestPattern,
SimParallelism: *simParallelism,
ClientStartTimeout: *clientTimeout,
},
SimDurationLimit: *simTimeLimit,
}
clientList := splitAndTrim(*clients, ",")
if err := runner.initClients(ctx, clientList); err != nil {
fatal(err)
}
if *simDevMode {
log15.Info("running in simulator development mode")
runner.runSimulatorAPIDevMode(ctx, *simDevModeAPIEndpoint)
} else if len(simList) > 0 {
if err := runner.initSimulators(ctx, simList); err != nil {
fatal(err)
}
if err := runner.runSimulations(ctx, simList); err != nil {
fatal(err)
}
}
}
type simRunner struct {
inv libhive.Inventory
container libhive.ContainerBackend
builder libhive.Builder
env libhive.SimEnv
// This holds the image names of all built simulators.
simImages map[string]string
// This is the time limit for a single simulation run.
SimDurationLimit time.Duration
}
// initClients builds client images.
func (r *simRunner) initClients(ctx context.Context, clientList []string) error {
r.env.Definitions = make(map[string]*libhive.ClientDefinition)
if len(clientList) == 0 {
return errors.New("client list is empty, cannot simulate")
}
var anyBuilt bool
log15.Info(fmt.Sprintf("building %d clients...", len(clientList)))
for _, client := range clientList {
if !r.inv.HasClient(client) {
return fmt.Errorf("unknown client %q", client)
}
meta, err := r.builder.ReadClientMetadata(client)
if err != nil {
return err
}
image, err := r.builder.BuildClientImage(ctx, client)
if err != nil {
continue
}
anyBuilt = true
version, err := r.builder.ReadFile(image, "/version.txt")
if err != nil {
log15.Warn("can't read version info of "+client, "image", image, "err", err)
}
r.env.Definitions[client] = &libhive.ClientDefinition{
Name: client,
Version: strings.TrimSpace(string(version)),
Image: image,
Meta: *meta,
}
}
if !anyBuilt {
return errors.New("all clients failed to build")
}
return nil
}
// initSimulators builds simulator images.
func (r *simRunner) initSimulators(ctx context.Context, simList []string) error {
r.simImages = make(map[string]string)
log15.Info(fmt.Sprintf("building %d simulators...", len(simList)))
for _, sim := range simList {
image, err := r.builder.BuildSimulatorImage(ctx, sim)
if err != nil {
return err
}
r.simImages[sim] = image
}
return nil
}
func (r *simRunner) runSimulations(ctx context.Context, simList []string) error {
log15.Info("creating output directory", "folder", r.env.LogDir)
if err := os.MkdirAll(r.env.LogDir, 0755); err != nil {
log15.Crit("failed to create logs folder", "err", err)
return err
}
for _, sim := range simList {
if err := r.run(ctx, sim); err != nil {
return err
}
}
return nil
}
func (r *simRunner) runSimulatorAPIDevMode(ctx context.Context, endpoint string) error {
tm := libhive.NewTestManager(r.env, r.container, -1)
defer func() {
if err := tm.Terminate(); err != nil {
log15.Error("could not terminate test manager", "error", err)
}
}()
addr, err := net.ResolveTCPAddr("tcp4", endpoint)
if err != nil {
log15.Error(fmt.Sprintf("failed to resolve %s", endpoint), "err", err)
return err
}
listener, err := net.ListenTCP("tcp4", addr)
if err != nil {
log15.Error(fmt.Sprintf("failed to start TCP server on %s", addr), "err", err)
return err
}
log15.Info(fmt.Sprintf("simulator API listening at %s", addr))
server := &http.Server{Handler: tm.API()}
defer shutdownServer(server)
go server.Serve(listener)
// wait for interrupt
<-ctx.Done()
return nil
}
// run runs one simulation.
func (r *simRunner) run(ctx context.Context, sim string) error {
log15.Info(fmt.Sprintf("running simulation: %s", sim))
// Start the simulation API.
tm := libhive.NewTestManager(r.env, r.container, -1)
defer func() {
if err := tm.Terminate(); err != nil {
log15.Error("could not terminate test manager", "error", err)
}
}()
addr, server, err := startTestSuiteAPI(tm)
if err != nil {
log15.Error("failed to start simulator API", "error", err)
return err
}
defer shutdownServer(server)
// Create the simulator container.
opts := libhive.ContainerOptions{
Env: map[string]string{
"HIVE_SIMULATOR": "http://" + addr.String(),
"HIVE_PARALLELISM": strconv.Itoa(r.env.SimParallelism),
"HIVE_LOGLEVEL": strconv.Itoa(r.env.SimLogLevel),
"HIVE_TEST_PATTERN": r.env.SimTestPattern,
},
}
containerID, err := r.container.CreateContainer(ctx, r.simImages[sim], opts)
if err != nil {
return err
}
// Set the log file, and notify TestManager about the container.
logbasename := fmt.Sprintf("%d-simulator-%s.log", time.Now().Unix(), containerID)
opts.LogFile = filepath.Join(r.env.LogDir, logbasename)
tm.SetSimContainerInfo(containerID, logbasename)
log15.Debug("starting simulator container")
sc, err := r.container.StartContainer(ctx, containerID, opts)
if err != nil {
return err
}
slogger := log15.New("sim", sim, "container", sc.ID[:8])
slogger.Debug("started simulator container")
defer func() {
slogger.Debug("deleting simulator container")
r.container.DeleteContainer(sc.ID)
}()
// Wait for simulator exit.
done := make(chan struct{})
go func() {
sc.Wait()
close(done)
}()
// if we have a simulation time limit, apply it.
var timeout <-chan time.Time
if r.SimDurationLimit != 0 {
tt := time.NewTimer(r.SimDurationLimit)
defer tt.Stop()
timeout = tt.C
}
// Wait for simulation to end.
select {
case <-done:
case <-timeout:
slogger.Info("simulation timed out")
case <-ctx.Done():
slogger.Info("interrupted, shutting down")
return errors.New("simulation interrupted")
}
return nil
}
// startTestSuiteAPI starts an HTTP webserver listening for simulator commands
// on the docker bridge and executing them until it is torn down.
func startTestSuiteAPI(tm *libhive.TestManager) (net.Addr, *http.Server, error) {
// Find the IP address of the host container
bridge, err := libdocker.LookupBridgeIP(log15.Root())
if err != nil {
log15.Error("failed to lookup bridge IP", "error", err)
return nil, nil, err
}
log15.Debug("docker bridge IP found", "ip", bridge)
// Serve connections until the listener is terminated
log15.Debug("starting simulator API server")
// Start the API webserver for simulators to coordinate with
addr, _ := net.ResolveTCPAddr("tcp4", fmt.Sprintf("%s:0", bridge))
listener, err := net.ListenTCP("tcp4", addr)
if err != nil {
log15.Error("failed to listen on bridge adapter", "err", err)
return nil, nil, err
}
laddr := listener.Addr()
log15.Debug("listening for simulator commands", "addr", laddr)
server := &http.Server{Handler: tm.API()}
go server.Serve(listener)
return laddr, server, nil
}
// shutdownServer gracefully terminates the HTTP server.
func shutdownServer(server *http.Server) {
log15.Debug("terminating simulator server")
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
if err := server.Shutdown(ctx); err != nil {
log15.Debug("simulation API server shutdown failed", "err", err)
}
}
func fatal(args ...interface{}) {
fmt.Fprintln(os.Stderr, args...)
os.Exit(1)
}
func splitAndTrim(input, sep string) []string {
list := strings.Split(input, sep)
for i := range list {
list[i] = strings.TrimSpace(list[i])
}
return list
}