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package coderd_test
import (
"archive/tar"
"bytes"
"compress/gzip"
"context"
"encoding/json"
"io"
"net/http"
"sync/atomic"
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"cdr.dev/slog/v3/sloggers/slogtest"
"github.com/coder/coder/v2/coderd"
"github.com/coder/coder/v2/coderd/coderdtest"
"github.com/coder/coder/v2/coderd/healthcheck"
"github.com/coder/coder/v2/coderd/rbac"
"github.com/coder/coder/v2/coderd/rbac/policy"
"github.com/coder/coder/v2/codersdk"
"github.com/coder/coder/v2/codersdk/healthsdk"
"github.com/coder/coder/v2/testutil"
)
func TestDebugHealth(t *testing.T) {
t.Parallel()
t.Run("OK", func(t *testing.T) {
t.Parallel()
var (
calls = atomic.Int64{}
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
sessionToken string
client = coderdtest.New(t, &coderdtest.Options{
HealthcheckFunc: func(_ context.Context, apiKey string, _ *healthcheck.Progress) *healthsdk.HealthcheckReport {
calls.Add(1)
assert.Equal(t, sessionToken, apiKey)
return &healthsdk.HealthcheckReport{
Time: time.Now(),
}
},
HealthcheckRefresh: time.Hour, // Avoid flakes.
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
sessionToken = client.SessionToken()
for i := 0; i < 10; i++ {
res, err := client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
_, _ = io.ReadAll(res.Body)
res.Body.Close()
require.Equal(t, http.StatusOK, res.StatusCode)
}
// The healthcheck should only have been called once.
require.EqualValues(t, 1, calls.Load())
})
t.Run("Forced", func(t *testing.T) {
t.Parallel()
var (
calls = atomic.Int64{}
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
sessionToken string
client = coderdtest.New(t, &coderdtest.Options{
HealthcheckFunc: func(_ context.Context, apiKey string, _ *healthcheck.Progress) *healthsdk.HealthcheckReport {
calls.Add(1)
assert.Equal(t, sessionToken, apiKey)
return &healthsdk.HealthcheckReport{
Time: time.Now(),
}
},
HealthcheckRefresh: time.Hour, // Avoid flakes.
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
sessionToken = client.SessionToken()
for i := 0; i < 10; i++ {
res, err := client.Request(ctx, "GET", "/api/v2/debug/health?force=true", nil)
require.NoError(t, err)
_, _ = io.ReadAll(res.Body)
res.Body.Close()
require.Equal(t, http.StatusOK, res.StatusCode)
}
// The healthcheck func should have been called each time.
require.EqualValues(t, 10, calls.Load())
})
t.Run("Timeout", func(t *testing.T) {
t.Parallel()
var (
// Need to ignore errors due to ctx timeout
logger = slogtest.Make(t, &slogtest.Options{IgnoreErrors: true})
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
done = make(chan struct{})
client = coderdtest.New(t, &coderdtest.Options{
Logger: &logger,
HealthcheckTimeout: time.Second,
HealthcheckFunc: func(_ context.Context, _ string, progress *healthcheck.Progress) *healthsdk.HealthcheckReport {
progress.Start("test")
<-done
return &healthsdk.HealthcheckReport{}
},
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
res, err := client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
defer res.Body.Close()
close(done)
bs, err := io.ReadAll(res.Body)
require.NoError(t, err, "reading body")
require.Equal(t, http.StatusServiceUnavailable, res.StatusCode)
var sdkResp codersdk.Response
require.NoError(t, json.Unmarshal(bs, &sdkResp), "unmarshaling sdk response")
require.Equal(t, "Healthcheck timed out.", sdkResp.Message)
require.Contains(t, sdkResp.Detail, "Still running: test (elapsed:")
})
t.Run("Refresh", func(t *testing.T) {
t.Parallel()
var (
calls = make(chan struct{})
callsDone = make(chan struct{})
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
client = coderdtest.New(t, &coderdtest.Options{
HealthcheckRefresh: time.Microsecond,
HealthcheckFunc: func(context.Context, string, *healthcheck.Progress) *healthsdk.HealthcheckReport {
calls <- struct{}{}
return &healthsdk.HealthcheckReport{}
},
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
go func() {
defer close(callsDone)
<-calls
<-time.After(testutil.IntervalFast)
<-calls
}()
res, err := client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
defer res.Body.Close()
_, _ = io.ReadAll(res.Body)
require.Equal(t, http.StatusOK, res.StatusCode)
res, err = client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
defer res.Body.Close()
_, _ = io.ReadAll(res.Body)
require.Equal(t, http.StatusOK, res.StatusCode)
select {
case <-callsDone:
case <-ctx.Done():
t.Fatal("timed out waiting for calls to finish")
}
})
t.Run("Deduplicated", func(t *testing.T) {
t.Parallel()
var (
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
calls int
client = coderdtest.New(t, &coderdtest.Options{
HealthcheckRefresh: time.Hour,
HealthcheckTimeout: time.Hour,
HealthcheckFunc: func(context.Context, string, *healthcheck.Progress) *healthsdk.HealthcheckReport {
calls++
return &healthsdk.HealthcheckReport{
Time: time.Now(),
}
},
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
res, err := client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
defer res.Body.Close()
_, _ = io.ReadAll(res.Body)
require.Equal(t, http.StatusOK, res.StatusCode)
res, err = client.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
defer res.Body.Close()
_, _ = io.ReadAll(res.Body)
require.Equal(t, http.StatusOK, res.StatusCode)
require.Equal(t, 1, calls)
})
t.Run("Text", func(t *testing.T) {
t.Parallel()
var (
ctx, cancel = context.WithTimeout(context.Background(), testutil.WaitShort)
sessionToken string
client = coderdtest.New(t, &coderdtest.Options{
HealthcheckFunc: func(_ context.Context, apiKey string, _ *healthcheck.Progress) *healthsdk.HealthcheckReport {
assert.Equal(t, sessionToken, apiKey)
return &healthsdk.HealthcheckReport{
Time: time.Now(),
Healthy: true,
DERP: healthsdk.DERPHealthReport{Healthy: true},
}
},
})
_ = coderdtest.CreateFirstUser(t, client)
)
defer cancel()
sessionToken = client.SessionToken()
res, err := client.Request(ctx, "GET", "/api/v2/debug/health?format=text", nil)
require.NoError(t, err)
defer res.Body.Close()
resB, _ := io.ReadAll(res.Body)
require.Equal(t, http.StatusOK, res.StatusCode)
resStr := string(resB)
assert.Contains(t, resStr, "healthy: true")
assert.Contains(t, resStr, "derp: true")
assert.Contains(t, resStr, "access_url: false")
assert.Contains(t, resStr, "websocket: false")
assert.Contains(t, resStr, "database: false")
})
}
func TestHealthSettings(t *testing.T) {
t.Parallel()
t.Run("InitialState", func(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitShort)
defer cancel()
// given
adminClient := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, adminClient)
// when
settings, err := healthsdk.New(adminClient).HealthSettings(ctx)
require.NoError(t, err)
// then
require.Equal(t, healthsdk.HealthSettings{DismissedHealthchecks: []healthsdk.HealthSection{}}, settings)
})
t.Run("DismissSection", func(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitShort)
defer cancel()
// given
adminClient := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, adminClient)
expected := healthsdk.HealthSettings{
DismissedHealthchecks: []healthsdk.HealthSection{healthsdk.HealthSectionDERP, healthsdk.HealthSectionWebsocket},
}
// when: dismiss "derp" and "websocket"
err := healthsdk.New(adminClient).PutHealthSettings(ctx, expected)
require.NoError(t, err)
// then
settings, err := healthsdk.New(adminClient).HealthSettings(ctx)
require.NoError(t, err)
require.Equal(t, expected, settings)
// then
res, err := adminClient.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
bs, err := io.ReadAll(res.Body)
require.NoError(t, err)
defer res.Body.Close()
var hc healthsdk.HealthcheckReport
require.NoError(t, json.Unmarshal(bs, &hc))
require.True(t, hc.DERP.Dismissed)
require.True(t, hc.Websocket.Dismissed)
})
t.Run("UnDismissSection", func(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitShort)
defer cancel()
// given
adminClient := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, adminClient)
initial := healthsdk.HealthSettings{
DismissedHealthchecks: []healthsdk.HealthSection{healthsdk.HealthSectionDERP, healthsdk.HealthSectionWebsocket},
}
err := healthsdk.New(adminClient).PutHealthSettings(ctx, initial)
require.NoError(t, err)
expected := healthsdk.HealthSettings{
DismissedHealthchecks: []healthsdk.HealthSection{healthsdk.HealthSectionDERP},
}
// when: undismiss "websocket"
err = healthsdk.New(adminClient).PutHealthSettings(ctx, expected)
require.NoError(t, err)
// then
settings, err := healthsdk.New(adminClient).HealthSettings(ctx)
require.NoError(t, err)
require.Equal(t, expected, settings)
// then
res, err := adminClient.Request(ctx, "GET", "/api/v2/debug/health", nil)
require.NoError(t, err)
bs, err := io.ReadAll(res.Body)
require.NoError(t, err)
defer res.Body.Close()
var hc healthsdk.HealthcheckReport
require.NoError(t, json.Unmarshal(bs, &hc))
require.True(t, hc.DERP.Dismissed)
require.False(t, hc.Websocket.Dismissed)
})
t.Run("NotModified", func(t *testing.T) {
t.Parallel()
ctx, cancel := context.WithTimeout(context.Background(), testutil.WaitShort)
defer cancel()
// given
adminClient := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, adminClient)
expected := healthsdk.HealthSettings{
DismissedHealthchecks: []healthsdk.HealthSection{healthsdk.HealthSectionDERP, healthsdk.HealthSectionWebsocket},
}
err := healthsdk.New(adminClient).PutHealthSettings(ctx, expected)
require.NoError(t, err)
// when
err = healthsdk.New(adminClient).PutHealthSettings(ctx, expected)
// then
require.Error(t, err)
require.Contains(t, err.Error(), "health settings not modified")
})
}
func TestDebugWebsocket(t *testing.T) {
t.Parallel()
t.Run("OK", func(t *testing.T) {
t.Parallel()
})
}
// noopProfileCollector avoids calling process-global runtime functions
// (CPU profiler, tracer) so that tests can run in parallel safely.
type noopProfileCollector struct{}
func (noopProfileCollector) StartCPUProfile(io.Writer) (func(), error) { return func() {}, nil }
func (noopProfileCollector) StartTrace(io.Writer) (func(), error) { return func() {}, nil }
func (noopProfileCollector) LookupProfile(string, io.Writer) error { return nil }
func (noopProfileCollector) SetBlockProfileRate(int) {}
func (noopProfileCollector) SetMutexProfileFraction(int) int { return 0 }
// Compile-time check.
var _ coderd.ProfileCollector = noopProfileCollector{}
// blockingProfileCollector blocks in StartCPUProfile until unblocked,
// allowing deterministic testing of the concurrency guard.
type blockingProfileCollector struct {
noopProfileCollector
started chan struct{} // closed when StartCPUProfile is entered
block chan struct{} // StartCPUProfile blocks until this is closed
}
func (b *blockingProfileCollector) StartCPUProfile(io.Writer) (func(), error) {
close(b.started)
<-b.block
return func() {}, nil
}
func newTestAPI(t *testing.T) (*codersdk.Client, io.Closer, *coderd.API) {
t.Helper()
client, closer, api := coderdtest.NewWithAPI(t, nil)
api.ProfileCollector = noopProfileCollector{}
return client, closer, api
}
func TestDebugCollectProfile(t *testing.T) {
t.Parallel()
t.Run("Defaults", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitLong)
client, closer, api := newTestAPI(t)
defer closer.Close()
_ = coderdtest.CreateFirstUser(t, client)
asserter := coderdtest.AssertRBAC(t, api, client)
body, err := client.DebugCollectProfile(ctx, codersdk.DebugProfileOptions{
// Use a very short duration so the test finishes quickly.
// The noop collector means no real profiling occurs.
Duration: 100 * time.Millisecond,
})
require.NoError(t, err)
defer body.Close()
data, err := io.ReadAll(body)
require.NoError(t, err)
require.NotEmpty(t, data, "archive should not be empty")
// Verify that the response is a valid tar.gz archive containing
// the expected profile files.
files := extractTarGzFiles(t, data)
require.Contains(t, files, "cpu.prof")
require.Contains(t, files, "heap.prof")
require.Contains(t, files, "allocs.prof")
require.Contains(t, files, "block.prof")
require.Contains(t, files, "mutex.prof")
require.Contains(t, files, "goroutine.prof")
// Verify the endpoint checks the correct RBAC permission.
asserter.AssertChecked(t, policy.ActionRead, rbac.ResourceDebugInfo)
})
t.Run("CustomProfiles", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitLong)
client, closer, _ := newTestAPI(t)
defer closer.Close()
_ = coderdtest.CreateFirstUser(t, client)
body, err := client.DebugCollectProfile(ctx, codersdk.DebugProfileOptions{
Duration: 100 * time.Millisecond,
Profiles: []string{"heap", "goroutine"},
})
require.NoError(t, err)
defer body.Close()
data, err := io.ReadAll(body)
require.NoError(t, err)
files := extractTarGzFiles(t, data)
require.Contains(t, files, "heap.prof")
require.Contains(t, files, "goroutine.prof")
// Should NOT contain profiles we didn't ask for.
require.NotContains(t, files, "cpu.prof")
require.NotContains(t, files, "allocs.prof")
})
t.Run("WithTraceAndCPU", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitLong)
client, closer, _ := newTestAPI(t)
defer closer.Close()
_ = coderdtest.CreateFirstUser(t, client)
body, err := client.DebugCollectProfile(ctx, codersdk.DebugProfileOptions{
Duration: 100 * time.Millisecond,
Profiles: []string{"cpu", "trace"},
})
require.NoError(t, err)
defer body.Close()
data, err := io.ReadAll(body)
require.NoError(t, err)
files := extractTarGzFiles(t, data)
require.Contains(t, files, "cpu.prof")
require.Contains(t, files, "trace.out")
})
t.Run("DurationTooLong", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
client := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, client)
res, err := client.Request(ctx, "POST", "/api/v2/debug/profile?duration=5m", nil)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusBadRequest, res.StatusCode)
})
t.Run("InvalidDuration", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
client := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, client)
res, err := client.Request(ctx, "POST", "/api/v2/debug/profile?duration=notaduration", nil)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusBadRequest, res.StatusCode)
})
t.Run("InvalidProfile", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
client := coderdtest.New(t, nil)
_ = coderdtest.CreateFirstUser(t, client)
res, err := client.Request(ctx, "POST", "/api/v2/debug/profile?profiles=nonexistent", nil)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusBadRequest, res.StatusCode)
})
t.Run("Unauthorized", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitShort)
client := coderdtest.New(t, nil)
firstUser := coderdtest.CreateFirstUser(t, client)
// Create a non-admin user.
memberClient, _ := coderdtest.CreateAnotherUser(t, client, firstUser.OrganizationID)
res, err := memberClient.Request(ctx, "POST", "/api/v2/debug/profile", nil)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusForbidden, res.StatusCode)
})
t.Run("Conflict", func(t *testing.T) {
t.Parallel()
ctx := testutil.Context(t, testutil.WaitLong)
blocker := &blockingProfileCollector{
started: make(chan struct{}),
block: make(chan struct{}),
}
client, closer, api := coderdtest.NewWithAPI(t, nil)
defer closer.Close()
api.ProfileCollector = blocker
_ = coderdtest.CreateFirstUser(t, client)
// Start a profile collection that will block inside
// StartCPUProfile until we explicitly unblock it.
done := make(chan struct{})
go func() {
defer close(done)
body, err := client.DebugCollectProfile(ctx, codersdk.DebugProfileOptions{
Duration: 1 * time.Second,
})
if err == nil {
body.Close()
}
}()
// Wait deterministically for the first request to enter the
// collector — no time.Sleep needed.
testutil.TryReceive(ctx, t, blocker.started)
// The second request should get 409 Conflict.
res, err := client.Request(ctx, "POST", "/api/v2/debug/profile?duration=1s", nil)
require.NoError(t, err)
defer res.Body.Close()
require.Equal(t, http.StatusConflict, res.StatusCode)
// Unblock the first request and wait for it to finish.
close(blocker.block)
testutil.TryReceive(ctx, t, done)
})
}
// extractTarGzFiles extracts file names from a tar.gz archive.
func extractTarGzFiles(t *testing.T, data []byte) map[string]bool {
t.Helper()
gr, err := gzip.NewReader(bytes.NewReader(data))
require.NoError(t, err)
defer gr.Close()
tr := tar.NewReader(gr)
files := make(map[string]bool)
for {
hdr, err := tr.Next()
if err == io.EOF {
break
}
require.NoError(t, err)
files[hdr.Name] = true
}
return files
}
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