10000 fix: remove stun nodes from workspace proxy regions by deansheather · Pull Request #8990 · coder/coder · GitHub
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fix: remove stun nodes from workspace proxy regions #8990

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Merged
merged 2 commits into from
Aug 9, 2023
Merged

fix: remove stun nodes from workspace proxy regions #8990

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6c9d495
fix: remove stun nodes from workspace proxy regions
deansheather Aug 9, 2023
259a788
fixup! fix: remove stun nodes from workspace proxy regions
deansheather Aug 9, 2023
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fix: remove stun nodes from workspace proxy regions
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@deansheather
deansheather committed Aug 9, 2023
commit 6c9d495d9646950b35b5d9f4b4879706b630be38
37 changes: 20 additions & 17 deletions enterprise/coderd/coderd.go
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Original file line number Diff line number Diff line change
Expand Up @@ -754,25 +754,28 @@ func derpMapper(logger slog.Logger, cfg *codersdk.DeploymentValues, proxyHealth
}

var stunNodes []*tailcfg.DERPNode
if !cfg.DERP.Config.BlockDirect.Value() {
stunNodes, err = agpltailnet.STUNNodes(regionID, cfg.DERP.Server.STUNAddresses)
if err != nil {
// Log a warning if we haven't logged one in the last
// minute.
lastDerpConflictMutex.Lock()
shouldLog := lastDerpConflictLog.IsZero() || time.Since(lastDerpConflictLog) > time.Minute
if shouldLog {
lastDerpConflictLog = time.Now()
// TODO(@dean): potentially re-enable this depending on impact
/*
if !cfg.DERP.Config.BlockDirect.Value() {
stunNodes, err = agpltailnet.STUNNodes(regionID, cfg.DERP.Server.STUNAddresses)
if err != nil {
// Log a warning if we haven't logged one in the last
// minute.
lastDerpConflictMutex.Lock()
shouldLog := lastDerpConflictLog.IsZero() || time.Since(lastDerpConflictLog) > time.Minute
if shouldLog {
lastDerpConflictLog = time.Now()
}
lastDerpConflictMutex.Unlock()
if shouldLog {
logger.Error(context.Background(), "failed to calculate STUN nodes", slog.Error(err))
}

// No continue because we can keep going.
stunNodes = []*tailcfg.DERPNode{}
}
lastDerpConflictMutex.Unlock()
if shouldLog {
logger.Error(context.Background(), "failed to calculate STUN nodes", slog.Error(err))
}

// No continue because we can keep going.
stunNodes = []*tailcfg.DERPNode{}
}
}
*/

nodes := append(stunNodes, &tailcfg.DERPNode{
Name: fmt.Sprintf("%da", regionID),
Expand Down
26 changes: 14 additions & 12 deletions enterprise/wsproxy/wsproxy_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -244,24 +244,24 @@ resourceLoop:
require.Equal(t, "coder_best-proxy", proxy1Region.RegionCode)
require.Equal(t, 10001, proxy1Region.RegionID)
require.False(t, proxy1Region.EmbeddedRelay)
require.Len(t, proxy1Region.Nodes, 2) // proxy + stun
require.Equal(t, "10001a", proxy1Region.Nodes[1].Name)
require.Equal(t, 10001, proxy1Region.Nodes[1].RegionID)
require.Equal(t, proxyAPI1.Options.AccessURL.Hostname(), proxy1Region.Nodes[1].HostName)
require.Equal(t, proxyAPI1.Options.AccessURL.Port(), fmt.Sprint(proxy1Region.Nodes[1].DERPPort))
require.Equal(t, proxyAPI1.Options.AccessURL.Scheme == "http", proxy1Region.Nodes[1].ForceHTTP)
require.Len(t, proxy1Region.Nodes, 1)
require.Equal(t, "10001a", proxy1Region.Nodes[0].Name)
require.Equal(t, 10001, proxy1Region.Nodes[0].RegionID)
require.Equal(t, proxyAPI1.Options.AccessURL.Hostname(), proxy1Region.Nodes[0].HostName)
require.Equal(t, proxyAPI1.Options.AccessURL.Port(), fmt.Sprint(proxy1Region.Nodes[0].DERPPort))
require.Equal(t, proxyAPI1.Options.AccessURL.Scheme == "http", proxy1Region.Nodes[0].ForceHTTP)

// The second proxy region:
require.Equal(t, "worst-proxy", proxy2Region.RegionName)
require.Equal(t, "coder_worst-proxy", proxy2Region.RegionCode)
require.Equal(t, 10002, proxy2Region.RegionID)
require.False(t, proxy2Region.EmbeddedRelay)
require.Len(t, proxy2Region.Nodes, 2) // proxy + stun
require.Equal(t, "10002a", proxy2Region.Nodes[1].Name)
require.Equal(t, 10002, proxy2Region.Nodes[1].RegionID)
require.Equal(t, proxyAPI2.Options.AccessURL.Hostname(), proxy2Region.Nodes[1].HostName)
require.Equal(t, proxyAPI2.Options.AccessURL.Port(), fmt.Sprint(proxy2Region.Nodes[1].DERPPort))
require.Equal(t, proxyAPI2.Options.AccessURL.Scheme == "http", proxy2Region.Nodes[1].ForceHTTP)
require.Len(t, proxy2Region.Nodes, 1)
require.Equal(t, "10002a", proxy2Region.Nodes[0].Name)
require.Equal(t, 10002, proxy2Region.Nodes[0].RegionID)
require.Equal(t, proxyAPI2.Options.AccessURL.Hostname(), proxy2Region.Nodes[0].HostName)
require.Equal(t, proxyAPI2.Options.AccessURL.Port(), fmt.Sprint(proxy2Region.Nodes[0].DERPPort))
require.Equal(t, proxyAPI2.Options.AccessURL.Scheme == "http", proxy2Region.Nodes[0].ForceHTTP)
})

t.Run("ConnectDERP", func(t *testing.T) {
Expand Down Expand Up @@ -313,6 +313,8 @@ resourceLoop:

func TestDERPMapStunNodes(t *testing.T) {
t.Parallel()
// See: enterprise/coderd/coderd.go
t.Skip("STUN nodes are removed from proxy regions in the DERP map for now")

deploymentValues := coderdtest.DeploymentValues(t)
deploymentValues.Experiments = []string{
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