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Commitc50b755

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feat(scaletest): add runner for thundering herd autostart
1 parentc50e86c commitc50b755

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5 files changed

+495
-5
lines changed

5 files changed

+495
-5
lines changed

‎scaletest/autostart/config.go‎

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package autostart
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import (
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"sync"
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"time"
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"golang.org/x/xerrors"
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"github.com/coder/coder/v2/codersdk"
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"github.com/coder/coder/v2/scaletest/createusers"
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"github.com/coder/coder/v2/scaletest/workspacebuild"
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"github.com/coder/quartz"
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)
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typeConfigstruct {
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// User is the configuration for the user to create.
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User createusers.Config`json:"user"`
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// Workspace is the configuration for the workspace to create. The workspace
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// will be built using the new user.
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//
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// OrganizationID is ignored and set to the new user's organization ID.
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Workspace workspacebuild.Config`json:"workspace"`
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// WorkspaceJobTimeout is how long to wait for any one workspace job
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// (start or stop) to complete.
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WorkspaceJobTimeout time.Duration`json:"workspace_job_timeout"`
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// AutostartDelay is how long after all the workspaces have been stopped
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// to schedule them to be started again.
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AutostartDelay time.Duration`json:"autostart_delay"`
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// AutostartTimeout is how long to wait for the autostart build to be
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// initiated after the scheduled time.
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AutostartTimeout time.Duration`json:"autostart_timeout"`
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Metrics*Metrics`json:"-"`
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// SetupBarrier is used to ensure all runners own stopped workspaces
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// before setting the autostart schedule on each.
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SetupBarrier*sync.WaitGroup`json:"-"`
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// Clock is mocked in tests.
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Clock quartz.Clock`json:"-"`
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}
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func (cConfig)Validate()error {
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iferr:=c.User.Validate();err!=nil {
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returnxerrors.Errorf("user config: %w",err)
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}
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c.Workspace.OrganizationID=c.User.OrganizationID
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// This value will be overwritten during the test.
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c.Workspace.UserID=codersdk.Me
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iferr:=c.Workspace.Validate();err!=nil {
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returnxerrors.Errorf("workspace config: %w",err)
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}
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ifc.SetupBarrier==nil {
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returnxerrors.New("setup barrier must be set")
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}
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ifc.WorkspaceJobTimeout<=0 {
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returnxerrors.New("workspace_job_timeout must be greater than 0")
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}
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ifc.AutostartDelay<=0 {
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returnxerrors.New("autostart_delay must be greater than 0")
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}
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ifc.AutostartTimeout<=0 {
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returnxerrors.New("autostart_timeout must be greater than 0")
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}
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ifc.Metrics==nil {
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returnxerrors.New("metrics must be set")
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}
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ifc.Clock==nil {
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returnxerrors.New("clock must be set")
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}
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returnnil
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}

‎scaletest/autostart/metrics.go‎

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package autostart
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import (
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"time"
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"github.com/prometheus/client_golang/prometheus"
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)
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typeMetricsstruct {
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AutostartLatencySeconds prometheus.HistogramVec
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AutostartErrorsTotal prometheus.CounterVec
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}
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funcNewMetrics(reg prometheus.Registerer)*Metrics {
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m:=&Metrics{
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AutostartLatencySeconds:*prometheus.NewHistogramVec(prometheus.HistogramOpts{
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Namespace:"coderd",
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Subsystem:"scaletest",
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Name:"autostart_latency_seconds",
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Help:"Time from when the workspace is scheduled to be autostarted to when the autostart build has finished.",
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}, []string{"username","workspace_name"}),
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AutostartErrorsTotal:*prometheus.NewCounterVec(prometheus.CounterOpts{
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Namespace:"coderd",
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Subsystem:"scaletest",
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Name:"autostart_errors_total",
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Help:"Total number of autostart errors",
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}, []string{"username","action"}),
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}
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reg.MustRegister(m.AutostartLatencySeconds)
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reg.MustRegister(m.AutostartErrorsTotal)
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returnm
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}
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func (m*Metrics)RecordCompletion(elapsed time.Duration,usernamestring,workspacestring) {
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m.AutostartLatencySeconds.WithLabelValues(username,workspace).Observe(elapsed.Seconds())
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}
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func (m*Metrics)AddError(usernamestring,actionstring) {
40+
m.AutostartErrorsTotal.WithLabelValues(username,action).Inc()
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}

‎scaletest/autostart/run.go‎

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package autostart
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3+
import (
4+
"context"
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"fmt"
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"io"
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"time"
8+
9+
"golang.org/x/xerrors"
10+
11+
"cdr.dev/slog"
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"cdr.dev/slog/sloggers/sloghuman"
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"github.com/coder/coder/v2/coderd/tracing"
14+
"github.com/coder/coder/v2/codersdk"
15+
"github.com/coder/coder/v2/scaletest/createusers"
16+
"github.com/coder/coder/v2/scaletest/harness"
17+
"github.com/coder/coder/v2/scaletest/loadtestutil"
18+
"github.com/coder/coder/v2/scaletest/workspacebuild"
19+
)
20+
21+
typeRunnerstruct {
22+
client*codersdk.Client
23+
cfgConfig
24+
25+
createUserRunner*createusers.Runner
26+
workspacebuildRunner*workspacebuild.Runner
27+
28+
autostartDuration time.Duration
29+
// Closed when the autostart schedule has been set.
30+
// Used in tests.
31+
autostartSetchanstruct{}
32+
}
33+
34+
funcNewRunner(client*codersdk.Client,cfgConfig)*Runner {
35+
return&Runner{
36+
client:client,
37+
cfg:cfg,
38+
autostartSet:make(chanstruct{}),
39+
}
40+
}
41+
42+
var (
43+
_ harness.Runnable=&Runner{}
44+
_ harness.Cleanable=&Runner{}
45+
_ harness.Collectable=&Runner{}
46+
)
47+
48+
func (r*Runner)Run(ctx context.Context,idstring,logs io.Writer)error {
49+
ctx,span:=tracing.StartSpan(ctx)
50+
deferspan.End()
51+
52+
logs=loadtestutil.NewSyncWriter(logs)
53+
logger:=slog.Make(sloghuman.Sink(logs)).Leveled(slog.LevelDebug)
54+
r.client.SetLogger(logger)
55+
r.client.SetLogBodies(true)
56+
57+
r.createUserRunner=createusers.NewRunner(r.client,r.cfg.User)
58+
newUserAndToken,err:=r.createUserRunner.RunReturningUser(ctx,id,logs)
59+
iferr!=nil {
60+
returnxerrors.Errorf("create user: %w",err)
61+
}
62+
newUser:=newUserAndToken.User
63+
64+
newUserClient:=codersdk.New(r.client.URL,
65+
codersdk.WithSessionToken(newUserAndToken.SessionToken),
66+
codersdk.WithLogger(logger),
67+
codersdk.WithLogBodies())
68+
69+
logger.Info(ctx,fmt.Sprintf("user %q created",newUser.Username),slog.F("id",newUser.ID.String()))
70+
71+
workspaceBuildConfig:=r.cfg.Workspace
72+
workspaceBuildConfig.OrganizationID=r.cfg.User.OrganizationID
73+
workspaceBuildConfig.UserID=newUser.ID.String()
74+
75+
r.workspacebuildRunner=workspacebuild.NewRunner(newUserClient,workspaceBuildConfig)
76+
workspace,err:=r.workspacebuildRunner.RunReturningWorkspace(ctx,id,logs)
77+
iferr!=nil {
78+
returnxerrors.Errorf("create workspace: %w",err)
79+
}
80+
81+
logger.Info(ctx,fmt.Sprintf("workspace %q created",workspace.Name))
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83+
logger.Info(ctx,fmt.Sprintf("stopping workspace %q",workspace.Name))
84+
85+
stopBuild,err:=newUserClient.CreateWorkspaceBuild(ctx,workspace.ID, codersdk.CreateWorkspaceBuildRequest{
86+
Transition:codersdk.WorkspaceTransitionStop,
87+
})
88+
iferr!=nil {
89+
returnxerrors.Errorf("create stop build: %w",err)
90+
}
91+
92+
stopBuildCtx,cancel2:=context.WithTimeout(ctx,r.cfg.WorkspaceJobTimeout)
93+
defercancel2()
94+
95+
err=workspacebuild.WaitForBuild(stopBuildCtx,logs,newUserClient,stopBuild.ID)
96+
iferr!=nil {
97+
returnxerrors.Errorf("wait for stop build to complete: %w",err)
98+
}
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100+
logger.Info(ctx,fmt.Sprintf("workspace %q stopped successfully",workspace.Name))
101+
102+
logger.Info(ctx,"waiting for all runners to reach barrier")
103+
r.cfg.SetupBarrier.Done()
104+
r.cfg.SetupBarrier.Wait()
105+
logger.Info(ctx,"all runners reached barrier, proceeding with autostart schedule")
106+
107+
autoStartTime:=r.cfg.Clock.Now().Add(r.cfg.AutostartDelay)
108+
schedule:=fmt.Sprintf("CRON_TZ=UTC %d %d * * *",autoStartTime.Minute(),autoStartTime.Hour())
109+
110+
logger.Info(ctx,fmt.Sprintf("setting autostart schedule for workspace %q: %s",workspace.Name,schedule))
111+
112+
err=newUserClient.UpdateWorkspaceAutostart(ctx,workspace.ID, codersdk.UpdateWorkspaceAutostartRequest{
113+
Schedule:&schedule,
114+
})
115+
iferr!=nil {
116+
returnxerrors.Errorf("update workspace autostart: %w",err)
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}
118+
close(r.autostartSet)
119+
120+
logger.Info(ctx,fmt.Sprintf("autostart schedule set for workspace %q",workspace.Name))
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122+
logger.Info(ctx,fmt.Sprintf("waiting for workspace %q to autostart",workspace.Name))
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124+
autostartInitiateCtx,cancel2:=context.WithTimeout(ctx,r.cfg.AutostartTimeout+r.cfg.AutostartDelay)
125+
defercancel2()
126+
127+
workspaceUpdates,err:=newUserClient.WatchWorkspace(autostartInitiateCtx,workspace.ID)
128+
iferr!=nil {
129+
returnxerrors.Errorf("watch workspace: %w",err)
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}
131+
132+
varautoStartBuild codersdk.WorkspaceBuild
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134+
logger.Info(ctx,"listening for workspace updates to detect autostart build")
135+
waitNewBuildLoop:
136+
for {
137+
select {
138+
case<-autostartInitiateCtx.Done():
139+
returnxerrors.Errorf("timeout waiting for autostart build to be created: %w",autostartInitiateCtx.Err())
140+
caseupdatedWorkspace,ok:=<-workspaceUpdates:
141+
if!ok {
142+
returnxerrors.Errorf("workspace updates channel closed")
143+
}
144+
145+
ifupdatedWorkspace.LatestBuild.ID!=stopBuild.ID&&
146+
updatedWorkspace.LatestBuild.Transition==codersdk.WorkspaceTransitionStart {
147+
autoStartBuild=updatedWorkspace.LatestBuild
148+
logger.Info(ctx,fmt.Sprintf("autostart build created with ID %s",autoStartBuild.ID))
149+
break waitNewBuildLoop
150+
}
151+
}
152+
}
153+
154+
logger.Info(ctx,"waiting for autostart build to complete")
155+
buildCompleteCtx,cancel3:=context.WithTimeout(ctx,r.cfg.WorkspaceJobTimeout)
156+
defercancel3()
157+
158+
err=workspacebuild.WaitForBuild(buildCompleteCtx,logs,newUserClient,autoStartBuild.ID)
159+
iferr!=nil {
160+
returnxerrors.Errorf("wait for autostart build to complete: %w",err)
161+
}
162+
163+
r.autostartDuration=r.cfg.Clock.Since(autoStartTime)
164+
logger.Info(ctx,fmt.Sprintf("workspace %q autostarted successfully",workspace.Name))
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166+
logger.Info(ctx,fmt.Sprintf("autostart completed in %v",r.autostartDuration))
167+
r.cfg.Metrics.RecordCompletion(r.autostartDuration,newUser.Username,workspace.Name)
168+
169+
returnnil
170+
}
171+
172+
func (r*Runner)Cleanup(ctx context.Context,idstring,logs io.Writer)error {
173+
ifr.workspacebuildRunner!=nil {
174+
_,_=fmt.Fprintln(logs,"Cleaning up workspace...")
175+
iferr:=r.workspacebuildRunner.Cleanup(ctx,id,logs);err!=nil {
176+
returnxerrors.Errorf("cleanup workspace: %w",err)
177+
}
178+
}
179+
180+
ifr.createUserRunner!=nil {
181+
_,_=fmt.Fprintln(logs,"Cleaning up user...")
182+
iferr:=r.createUserRunner.Cleanup(ctx,id,logs);err!=nil {
183+
returnxerrors.Errorf("cleanup user: %w",err)
184+
}
185+
}
186+
187+
returnnil
188+
}
189+
190+
const (
191+
AutostartLatencyMetric="autostart_latency_seconds"
192+
)
193+
194+
func (r*Runner)GetMetrics()map[string]any {
195+
returnmap[string]any{
196+
AutostartLatencyMetric:r.autostartDuration.Seconds(),
197+
}
198+
}

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