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Commit1b9f328

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committed
Add logging to coordinator
Signed-off-by: Spike Curtis <spike@coder.com>
1 parent62f3155 commit1b9f328

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7 files changed

+67
-29
lines changed

7 files changed

+67
-29
lines changed

‎agent/agent_test.go

Lines changed: 20 additions & 16 deletions
Original file line numberDiff line numberDiff line change
@@ -714,7 +714,7 @@ func TestAgent_UnixRemoteForwarding(t *testing.T) {
714714
varerrerror
715715
conn,err=net.Dial("unix",remoteSocketPath)
716716
returnerr==nil
717-
},testutil.WaitLong,testutil.IntervalFast)
717+
},testutil.WaitShort,testutil.IntervalFast)
718718
deferconn.Close()
719719
_,err=conn.Write([]byte("test"))
720720
require.NoError(t,err)
@@ -879,6 +879,7 @@ func TestAgent_StartupScript(t *testing.T) {
879879
}
880880
t.Run("Success",func(t*testing.T) {
881881
t.Parallel()
882+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
882883
client:=&client{
883884
t:t,
884885
agentID:uuid.New(),
@@ -887,12 +888,12 @@ func TestAgent_StartupScript(t *testing.T) {
887888
DERPMap:&tailcfg.DERPMap{},
888889
},
889890
statsChan:make(chan*agentsdk.Stats),
890-
coordinator:tailnet.NewCoordinator(),
891+
coordinator:tailnet.NewCoordinator(logger),
891892
}
892893
closer:=agent.New(agent.Options{
893894
Client:client,
894895
Filesystem:afero.NewMemMapFs(),
895-
Logger:slogtest.Make(t,nil).Named("agent").Leveled(slog.LevelDebug),
896+
Logger:logger.Named("agent"),
896897
ReconnectingPTYTimeout:0,
897898
})
898899
t.Cleanup(func() {
@@ -910,6 +911,7 @@ func TestAgent_StartupScript(t *testing.T) {
910911
// script has written too many lines it will still succeed!
911912
t.Run("OverflowsAndSkips",func(t*testing.T) {
912913
t.Parallel()
914+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
913915
client:=&client{
914916
t:t,
915917
agentID:uuid.New(),
@@ -927,12 +929,12 @@ func TestAgent_StartupScript(t *testing.T) {
927929
returncodersdk.ReadBodyAsError(res)
928930
},
929931
statsChan:make(chan*agentsdk.Stats),
930-
coordinator:tailnet.NewCoordinator(),
932+
coordinator:tailnet.NewCoordinator(logger),
931933
}
932934
closer:=agent.New(agent.Options{
933935
Client:client,
934936
Filesystem:afero.NewMemMapFs(),
935-
Logger:slogtest.Make(t,nil).Named("agent").Leveled(slog.LevelDebug),
937+
Logger:logger.Named("agent"),
936938
ReconnectingPTYTimeout:0,
937939
})
938940
t.Cleanup(func() {
@@ -1282,7 +1284,7 @@ func TestAgent_Lifecycle(t *testing.T) {
12821284

12831285
t.Run("ShutdownScriptOnce",func(t*testing.T) {
12841286
t.Parallel()
1285-
1287+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
12861288
expected:="this-is-shutdown"
12871289
client:=&client{
12881290
t:t,
@@ -1293,13 +1295,13 @@ func TestAgent_Lifecycle(t *testing.T) {
12931295
ShutdownScript:"echo "+expected,
12941296
},
12951297
statsChan:make(chan*agentsdk.Stats),
1296-
coordinator:tailnet.NewCoordinator(),
1298+
coordinator:tailnet.NewCoordinator(logger),
12971299
}
12981300

12991301
fs:=afero.NewMemMapFs()
13001302
agent:=agent.New(agent.Options{
13011303
Client:client,
1302-
Logger:slogtest.Make(t,nil).Leveled(slog.LevelInfo),
1304+
Logger:logger.Named("agent"),
13031305
Filesystem:fs,
13041306
})
13051307

@@ -1548,9 +1550,10 @@ func TestAgent_Speedtest(t *testing.T) {
15481550

15491551
funcTestAgent_Reconnect(t*testing.T) {
15501552
t.Parallel()
1553+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
15511554
// After the agent is disconnected from a coordinator, it's supposed
15521555
// to reconnect!
1553-
coordinator:=tailnet.NewCoordinator()
1556+
coordinator:=tailnet.NewCoordinator(logger)
15541557
defercoordinator.Close()
15551558

15561559
agentID:=uuid.New()
@@ -1572,7 +1575,7 @@ func TestAgent_Reconnect(t *testing.T) {
15721575
return"",nil
15731576
},
15741577
Client:client,
1575-
Logger:slogtest.Make(t,nil).Leveled(slog.LevelInfo),
1578+
Logger:logger.Named("agent"),
15761579
})
15771580
defercloser.Close()
15781581

@@ -1587,8 +1590,8 @@ func TestAgent_Reconnect(t *testing.T) {
15871590

15881591
funcTestAgent_WriteVSCodeConfigs(t*testing.T) {
15891592
t.Parallel()
1590-
1591-
coordinator:=tailnet.NewCoordinator()
1593+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
1594+
coordinator:=tailnet.NewCoordinator(logger)
15921595
defercoordinator.Close()
15931596

15941597
client:=&client{
@@ -1607,7 +1610,7 @@ func TestAgent_WriteVSCodeConfigs(t *testing.T) {
16071610
return"",nil
16081611
},
16091612
Client:client,
1610-
Logger:slogtest.Make(t,nil).Leveled(slog.LevelInfo),
1613+
Logger:logger.Named("agent"),
16111614
Filesystem:filesystem,
16121615
})
16131616
defercloser.Close()
@@ -1698,10 +1701,11 @@ func setupAgent(t *testing.T, metadata agentsdk.Manifest, ptyTimeout time.Durati
16981701
afero.Fs,
16991702
io.Closer,
17001703
) {
1704+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
17011705
ifmetadata.DERPMap==nil {
17021706
metadata.DERPMap=tailnettest.RunDERPAndSTUN(t)
17031707
}
1704-
coordinator:=tailnet.NewCoordinator()
1708+
coordinator:=tailnet.NewCoordinator(logger)
17051709
t.Cleanup(func() {
17061710
_=coordinator.Close()
17071711
})
@@ -1718,7 +1722,7 @@ func setupAgent(t *testing.T, metadata agentsdk.Manifest, ptyTimeout time.Durati
17181722
closer:=agent.New(agent.Options{
17191723
Client:c,
17201724
Filesystem:fs,
1721-
Logger:slogtest.Make(t,nil).Named("agent").Leveled(slog.LevelDebug),
1725+
Logger:logger.Named("agent"),
17221726
ReconnectingPTYTimeout:ptyTimeout,
17231727
})
17241728
t.Cleanup(func() {
@@ -1727,7 +1731,7 @@ func setupAgent(t *testing.T, metadata agentsdk.Manifest, ptyTimeout time.Durati
17271731
conn,err:=tailnet.NewConn(&tailnet.Options{
17281732
Addresses: []netip.Prefix{netip.PrefixFrom(tailnet.IP(),128)},
17291733
DERPMap:metadata.DERPMap,
1730-
Logger:slogtest.Make(t,nil).Named("client").Leveled(slog.LevelDebug),
1734+
Logger:logger.Named("client"),
17311735
})
17321736
require.NoError(t,err)
17331737
clientConn,serverConn:=net.Pipe()

‎coderd/coderd.go

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -221,7 +221,7 @@ func New(options *Options) *API {
221221
options.PrometheusRegistry=prometheus.NewRegistry()
222222
}
223223
ifoptions.TailnetCoordinator==nil {
224-
options.TailnetCoordinator=tailnet.NewCoordinator()
224+
options.TailnetCoordinator=tailnet.NewCoordinator(options.Logger)
225225
}
226226
ifoptions.DERPServer==nil {
227227
options.DERPServer=derp.NewServer(key.NewNode(),tailnet.Logger(options.Logger.Named("derp")))

‎coderd/prometheusmetrics/prometheusmetrics_test.go

Lines changed: 2 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -16,6 +16,7 @@ import (
1616
"github.com/stretchr/testify/assert"
1717
"github.com/stretchr/testify/require"
1818

19+
"cdr.dev/slog"
1920
"cdr.dev/slog/sloggers/slogtest"
2021

2122
"github.com/coder/coder/coderd/coderdtest"
@@ -298,7 +299,7 @@ func TestAgents(t *testing.T) {
298299
coderdtest.AwaitWorkspaceBuildJob(t,client,workspace.LatestBuild.ID)
299300

300301
// given
301-
coordinator:=tailnet.NewCoordinator()
302+
coordinator:=tailnet.NewCoordinator(slogtest.Make(t,nil).Leveled(slog.LevelDebug))
302303
coordinatorPtr:= atomic.Pointer[tailnet.Coordinator]{}
303304
coordinatorPtr.Store(&coordinator)
304305
derpMap:=tailnettest.RunDERPAndSTUN(t)

‎coderd/wsconncache/wsconncache_test.go

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -156,10 +156,10 @@ func TestCache(t *testing.T) {
156156

157157
funcsetupAgent(t*testing.T,manifest agentsdk.Manifest,ptyTimeout time.Duration)*codersdk.WorkspaceAgentConn {
158158
t.Helper()
159-
159+
logger:=slogtest.Make(t,nil).Leveled(slog.LevelDebug)
160160
manifest.DERPMap=tailnettest.RunDERPAndSTUN(t)
161161

162-
coordinator:=tailnet.NewCoordinator()
162+
coordinator:=tailnet.NewCoordinator(logger)
163163
t.Cleanup(func() {
164164
_=coordinator.Close()
165165
})
@@ -171,7 +171,7 @@ func setupAgent(t *testing.T, manifest agentsdk.Manifest, ptyTimeout time.Durati
171171
manifest:manifest,
172172
coordinator:coordinator,
173173
},
174-
Logger:slogtest.Make(t,nil).Named("agent").Leveled(slog.LevelInfo),
174+
Logger:logger.Named("agent"),
175175
ReconnectingPTYTimeout:ptyTimeout,
176176
})
177177
t.Cleanup(func() {

‎enterprise/coderd/coderd.go

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -390,7 +390,7 @@ func (api *API) updateEntitlements(ctx context.Context) error {
390390
}
391391

392392
ifchanged,enabled:=featureChanged(codersdk.FeatureHighAvailability);changed {
393-
coordinator:=agpltailnet.NewCoordinator()
393+
coordinator:=agpltailnet.NewCoordinator(api.Logger)
394394
ifenabled {
395395
haCoordinator,err:=tailnet.NewCoordinator(api.Logger,api.Pubsub)
396396
iferr!=nil {

‎tailnet/coordinator.go

Lines changed: 29 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -13,6 +13,8 @@ import (
1313
"sync/atomic"
1414
"time"
1515

16+
"cdr.dev/slog"
17+
1618
"github.com/google/uuid"
1719
lru"github.com/hashicorp/golang-lru/v2"
1820
"golang.org/x/exp/slices"
@@ -111,16 +113,19 @@ func ServeCoordinator(conn net.Conn, updateNodes func(node []*Node) error) (func
111113
},errChan
112114
}
113115

116+
constLoggerName="coord"
117+
114118
// NewCoordinator constructs a new in-memory connection coordinator. This
115119
// coordinator is incompatible with multiple Coder replicas as all node data is
116120
// in-memory.
117-
funcNewCoordinator()Coordinator {
121+
funcNewCoordinator(logger slog.Logger)Coordinator {
118122
nameCache,err:= lru.New[uuid.UUID,string](512)
119123
iferr!=nil {
120124
panic("make lru cache: "+err.Error())
121125
}
122126

123127
return&coordinator{
128+
logger:logger.Named(LoggerName),
124129
closed:false,
125130
nodes:map[uuid.UUID]*Node{},
126131
agentSockets:map[uuid.UUID]*TrackedConn{},
@@ -137,6 +142,7 @@ func NewCoordinator() Coordinator {
137142
// This coordinator is incompatible with multiple Coder
138143
// replicas as all node data is in-memory.
139144
typecoordinatorstruct {
145+
logger slog.Logger
140146
mutex sync.RWMutex
141147
closedbool
142148

@@ -194,6 +200,8 @@ func (c *coordinator) AgentCount() int {
194200
// ServeClient accepts a WebSocket connection that wants to connect to an agent
195201
// with the specified ID.
196202
func (c*coordinator)ServeClient(conn net.Conn,id uuid.UUID,agent uuid.UUID)error {
203+
logger:=c.logger.With(slog.F("client_id",id),slog.F("agent_id",agent))
204+
logger.Debug(context.TODO(),"coordinating client")
197205
c.mutex.Lock()
198206
ifc.closed {
199207
c.mutex.Unlock()
@@ -210,6 +218,7 @@ func (c *coordinator) ServeClient(conn net.Conn, id uuid.UUID, agent uuid.UUID)
210218
returnxerrors.Errorf("marshal node: %w",err)
211219
}
212220
_,err=conn.Write(data)
221+
logger.Debug(context.TODO(),"wrote initial node")
213222
iferr!=nil {
214223
returnxerrors.Errorf("write nodes: %w",err)
215224
}
@@ -230,7 +239,9 @@ func (c *coordinator) ServeClient(conn net.Conn, id uuid.UUID, agent uuid.UUID)
230239
LastWrite:now,
231240
}
232241
c.mutex.Unlock()
242+
logger.Debug(context.TODO(),"added tracked connection")
233243
deferfunc() {
244+
logger.Debug(context.TODO(),"deleting tracked connection")
234245
c.mutex.Lock()
235246
deferc.mutex.Unlock()
236247
// Clean all traces of this connection from the map.
@@ -259,11 +270,13 @@ func (c *coordinator) ServeClient(conn net.Conn, id uuid.UUID, agent uuid.UUID)
259270
}
260271

261272
func (c*coordinator)handleNextClientMessage(id,agent uuid.UUID,decoder*json.Decoder)error {
273+
logger:=c.logger.With(slog.F("client_id",id),slog.F("agent_id",agent))
262274
varnodeNode
263275
err:=decoder.Decode(&node)
264276
iferr!=nil {
265277
returnxerrors.Errorf("read json: %w",err)
266278
}
279+
logger.Debug(context.TODO(),"got client node update",slog.F("node",node))
267280

268281
c.mutex.Lock()
269282
// Update the node of this client in our in-memory map. If an agent entirely
@@ -274,6 +287,7 @@ func (c *coordinator) handleNextClientMessage(id, agent uuid.UUID, decoder *json
274287
agentSocket,ok:=c.agentSockets[agent]
275288
if!ok {
276289
c.mutex.Unlock()
290+
logger.Debug(context.TODO(),"no agent socket")
277291
returnnil
278292
}
279293
c.mutex.Unlock()
@@ -291,13 +305,16 @@ func (c *coordinator) handleNextClientMessage(id, agent uuid.UUID, decoder *json
291305
}
292306
returnxerrors.Errorf("write json: %w",err)
293307
}
308+
logger.Debug(context.TODO(),"sent client node to agent")
294309

295310
returnnil
296311
}
297312

298313
// ServeAgent accepts a WebSocket connection to an agent that
299314
// listens to incoming connections and publishes node updates.
300315
func (c*coordinator)ServeAgent(conn net.Conn,id uuid.UUID,namestring)error {
316+
logger:=c.logger.With(slog.F("agent_id",id))
317+
logger.Debug(context.TODO(),"coordinating agent")
301318
c.mutex.Lock()
302319
ifc.closed {
303320
c.mutex.Unlock()
@@ -324,6 +341,7 @@ func (c *coordinator) ServeAgent(conn net.Conn, id uuid.UUID, name string) error
324341
returnxerrors.Errorf("marshal json: %w",err)
325342
}
326343
_,err=conn.Write(data)
344+
logger.Debug(context.TODO(),"wrote initial client(s) to agent",slog.F("nodes",nodes))
327345
iferr!=nil {
328346
returnxerrors.Errorf("write nodes: %w",err)
329347
}
@@ -356,6 +374,7 @@ func (c *coordinator) ServeAgent(conn net.Conn, id uuid.UUID, name string) error
356374
}
357375

358376
c.mutex.Unlock()
377+
logger.Debug(context.TODO(),"added agent socket")
359378
deferfunc() {
360379
c.mutex.Lock()
361380
deferc.mutex.Unlock()
@@ -365,6 +384,7 @@ func (c *coordinator) ServeAgent(conn net.Conn, id uuid.UUID, name string) error
365384
ifidConn,ok:=c.agentSockets[id];ok&&idConn.ID==unique {
366385
delete(c.agentSockets,id)
367386
delete(c.nodes,id)
387+
logger.Debug(context.TODO(),"deleted agent socket")
368388
}
369389
}()
370390

@@ -381,17 +401,20 @@ func (c *coordinator) ServeAgent(conn net.Conn, id uuid.UUID, name string) error
381401
}
382402

383403
func (c*coordinator)handleNextAgentMessage(id uuid.UUID,decoder*json.Decoder)error {
404+
logger:=c.logger.With(slog.F("agent_id",id))
384405
varnodeNode
385406
err:=decoder.Decode(&node)
386407
iferr!=nil {
387408
returnxerrors.Errorf("read json: %w",err)
388409
}
410+
logger.Debug(context.TODO(),"decoded agent node",slog.F("node",node))
389411

390412
c.mutex.Lock()
391413
c.nodes[id]=&node
392414
connectionSockets,ok:=c.agentToConnectionSockets[id]
393415
if!ok {
394416
c.mutex.Unlock()
417+
logger.Debug(context.TODO(),"no client sockets")
395418
returnnil
396419
}
397420
data,err:=json.Marshal([]*Node{&node})
@@ -403,11 +426,14 @@ func (c *coordinator) handleNextAgentMessage(id uuid.UUID, decoder *json.Decoder
403426
// Publish the new node to every listening socket.
404427
varwg sync.WaitGroup
405428
wg.Add(len(connectionSockets))
406-
for_,connectionSocket:=rangeconnectionSockets {
429+
forclientID,connectionSocket:=rangeconnectionSockets {
430+
clientID:=clientID
407431
connectionSocket:=connectionSocket
408432
gofunc() {
409433
_=connectionSocket.SetWriteDeadline(time.Now().Add(5*time.Second))
410-
_,_=connectionSocket.Write(data)
434+
_,err:=connectionSocket.Write(data)
435+
logger.Debug(context.TODO(),"sent agent node to client",
436+
slog.F("client_id",clientID),slog.Error(err))
411437
wg.Done()
412438
}()
413439
}

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