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e2e test: use one connection per stream
Sharing the same connection for multiple streams should have worked,
but ran into unexpected timeouts:
I0227 08:07:49.754263 80029 portproxy.go:109] container "mock" in pod csi-mock-volumes-4037-2061/csi-mockplugin-0 is running
E0227 08:07:49.779359 80029 portproxy.go:178] prepare forwarding csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: dialer failed: unable to upgrade connection: pod not found ("csi-mockplugin-0_csi-mock-volumes-4037-2061")
I0227 08:07:50.782705 80029 portproxy.go:109] container "mock" in pod csi-mock-volumes-4037-2061/csi-mockplugin-0 is running
I0227 08:07:50.809326 80029 portproxy.go:125] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: starting connection polling
I0227 08:07:50.909544 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #0, 0 open
I0227 08:07:50.912436 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #0
I0227 08:07:50.912503 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #0
I0227 08:07:50.913161 80029 portproxy.go:322] forward connection #0 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
E0227 08:07:50.913324 80029 portproxy.go:242] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: an error occurred connecting to the remote port: error forwarding port 9000 to pod 66662ea1ab30b4193dac0102c49be840971d337c802cc0c8bbc074214522bd13, uid : failed to execute portforward in network namespace "/var/run/netns/cni-c15e4e36-dad9-8316-c301-33af9dad5717": failed to dial 9000: dial tcp4 127.0.0.1:9000: connect: connection refused
I0227 08:07:50.913371 80029 portproxy.go:340] forward connection #0 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
W0227 08:07:50.913487 80029 server.go:669] grpc: Server.Serve failed to create ServerTransport: connection error: desc = "transport: http2Server.HandleStreams failed to receive the preface from client: EOF"
I0227 08:07:51.009519 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #1, 0 open
I0227 08:07:51.011912 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #1
I0227 08:07:51.011973 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #1
I0227 08:07:51.013677 80029 portproxy.go:322] forward connection #1 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:07:51.013720 80029 portproxy.go:340] forward connection #1 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
W0227 08:07:51.013794 80029 server.go:669] grpc: Server.Serve failed to create ServerTransport: connection error: desc = "transport: http2Server.HandleStreams failed to receive the preface from client: EOF"
E0227 08:07:51.017026 80029 portproxy.go:242] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: an error occurred connecting to the remote port: error forwarding port 9000 to pod 66662ea1ab30b4193dac0102c49be840971d337c802cc0c8bbc074214522bd13, uid : failed to execute portforward in network namespace "/var/run/netns/cni-c15e4e36-dad9-8316-c301-33af9dad5717": failed to dial 9000: dial tcp4 127.0.0.1:9000: connect: connection refused
I0227 08:07:51.109515 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #2, 0 open
I0227 08:07:51.111479 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #2
I0227 08:07:51.111519 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #2
I0227 08:07:51.209519 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #3, 1 open
I0227 08:07:51.766305 80029 csi.go:377] gRPC call: {"Method":"/csi.v1.Identity/Probe","Request":{},"Response":{"ready":{"value":true}},"Error":"","FullError":null}
I0227 08:07:51.768304 80029 csi.go:377] gRPC call: {"Method":"/csi.v1.Identity/GetPluginInfo","Request":{},"Response":{"name":"csi-mock-csi-mock-volumes-4037","vendor_version":"0.3.0","manifest":{"url":"https://k8s.io/kubernetes/test/e2e/storage/drivers/csi-test/mock"}},"Error":"","FullError":null}
I0227 08:07:51.770494 80029 csi.go:377] gRPC call: {"Method":"/csi.v1.Identity/GetPluginCapabilities","Request":{},"Response":{"capabilities":[{"Type":{"Service":{"type":1}}},{"Type":{"VolumeExpansion":{"type":1}}},{"Type":{"Service":{"type":2}}}]},"Error":"","FullError":null}
I0227 08:07:51.772899 80029 csi.go:377] gRPC call: {"Method":"/csi.v1.Controller/ControllerGetCapabilities","Request":{},"Response":{"capabilities":[{"Type":{"Rpc":{"type":1}}},{"Type":{"Rpc":{"type":3}}},{"Type":{"Rpc":{"type":10}}},{"Type":{"Rpc":{"type":4}}},{"Type":{"Rpc":{"type":6}}},{"Type":{"Rpc":{"type":5}}},{"Type":{"Rpc":{"type":8}}},{"Type":{"Rpc":{"type":7}}},{"Type":{"Rpc":{"type":12}}},{"Type":{"Rpc":{"type":11}}},{"Type":{"Rpc":{"type":9}}}]},"Error":"","FullError":null}
I0227 08:08:21.209901 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:08:21.209980 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #3, 1 open
I0227 08:08:51.211522 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating data stream: Timeout occurred
I0227 08:08:51.211566 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #3, 1 open
I0227 08:08:51.213451 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #3
I0227 08:08:51.213498 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #3
I0227 08:08:51.309540 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #4, 2 open
I0227 08:08:52.215358 80029 portproxy.go:322] forward connection #3 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:08:52.215475 80029 portproxy.go:340] forward connection #3 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
I0227 08:09:21.310003 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:09:21.310086 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #4, 1 open
I0227 08:09:51.311854 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating data stream: Timeout occurred
I0227 08:09:51.311908 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #4, 1 open
I0227 08:09:51.314415 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #4
I0227 08:09:51.314497 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #4
I0227 08:09:51.409527 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #5, 2 open
I0227 08:09:52.326203 80029 portproxy.go:322] forward connection #4 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:09:52.326277 80029 portproxy.go:340] forward connection #4 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
I0227 08:10:21.409892 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:10:21.409954 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #5, 1 open
I0227 08:10:51.411455 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating data stream: Timeout occurred
I0227 08:10:51.411557 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #5, 1 open
I0227 08:10:51.413229 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #5
I0227 08:10:51.413274 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #5
I0227 08:10:51.509508 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #6, 2 open
I0227 08:10:52.414862 80029 portproxy.go:322] forward connection #5 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:10:52.414931 80029 portproxy.go:340] forward connection #5 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
I0227 08:11:21.509879 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:11:21.509934 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #6, 1 open
I0227 08:11:51.511519 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating data stream: Timeout occurred
I0227 08:11:51.511568 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #6, 1 open
I0227 08:11:51.513519 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #6
I0227 08:11:51.513571 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #6
I0227 08:11:51.609504 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #7, 2 open
I0227 08:11:52.517799 80029 portproxy.go:322] forward connection #6 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:11:52.517918 80029 portproxy.go:340] forward connection #6 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
I0227 08:12:21.609856 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:12:21.609909 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #7, 1 open
I0227 08:12:51.611494 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating data stream: Timeout occurred
I0227 08:12:51.611555 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #7, 1 open
I0227 08:12:51.613289 80029 portproxy.go:155] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: created a new connection #7
I0227 08:12:51.613343 80029 portproxy.go:286] forward listener for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: got a new connection #7
I0227 08:12:51.709535 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #8, 2 open
I0227 08:12:52.615858 80029 portproxy.go:322] forward connection #7 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: remote side closed the stream
I0227 08:12:52.615989 80029 portproxy.go:340] forward connection #7 for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: closing our side
W0227 08:12:52.616116 80029 server.go:669] grpc: Server.Serve failed to create ServerTransport: connection error: desc = "transport: http2Server.HandleStreams failed to receive the preface from client: EOF"
I0227 08:13:21.709934 80029 portproxy.go:151] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: no connection: error creating error stream: Timeout occurred
I0227 08:13:21.709997 80029 portproxy.go:148] port forwarding for csi-mock-volumes-4037-2061/csi-mockplugin-0:9000: trying to create a new connection #8, 1 open
Feb 27 08:13:30.916: FAIL: Failed to register CSIDriver csi-mock-csi-mock-volumes-4037
Unexpected error:
<*errors.errorString | 0xc002666220>: {
s: "error waiting for CSI driver csi-mock-csi-mock-volumes-4037 registration on node kind-worker2: timed out waiting for the condition",
}
error waiting for CSI driver csi-mock-csi-mock-volumes-4037 registration on node kind-worker2: timed out waiting for the condition
occurred
This commit is contained in:
Patrick Ohly
parent
5089af1f23
commit
06ffdbc784
@ -24,13 +24,11 @@ import (
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"io/ioutil"
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"net"
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"net/http"
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"strconv"
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"sync"
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"sync/atomic"
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"time"
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v1 "k8s.io/api/core/v1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/util/httpstream"
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@ -94,35 +92,11 @@ func Listen(ctx context.Context, clientset kubernetes.Interface, restConfig *res
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addr: addr,
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}
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// Port forwarding is allowed to fail and will be restarted when it does.
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prepareForwarding := func() (*remotePort, error) {
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pod, err := clientset.CoreV1().Pods(addr.Namespace).Get(ctx, addr.PodName, metav1.GetOptions{})
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if err != nil {
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return nil, err
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}
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for i, status := range pod.Status.ContainerStatuses {
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if pod.Spec.Containers[i].Name == addr.ContainerName &&
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status.State.Running == nil {
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return nil, fmt.Errorf("container %q is not running", addr.ContainerName)
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}
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}
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streamConn, _, err := dialer.Dial(portforward.PortForwardProtocolV1Name)
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if err != nil {
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return nil, fmt.Errorf("dialer failed: %v", err)
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}
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rp := &remotePort{
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streamConn: streamConn,
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}
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return rp, nil
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}
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var connectionsCreated, connectionsClosed int32
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runForwarding := func(rp *remotePort) {
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defer rp.Close()
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klog.V(5).Infof("%s: starting connection polling", prefix)
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defer klog.V(5).Infof("%s: connection polling ended", prefix)
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runForwarding := func() {
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klog.V(2).Infof("%s: starting connection polling", prefix)
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defer klog.V(2).Infof("%s: connection polling ended", prefix)
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// This delay determines how quickly we notice when someone has
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// connected inside the cluster. With socat, we cannot make this too small
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@ -145,9 +119,9 @@ func Listen(ctx context.Context, clientset kubernetes.Interface, restConfig *res
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}
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klog.V(5).Infof("%s: trying to create a new connection #%d, %d open", prefix, connectionsCreated, openConnections)
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stream, err := rp.dial(ctx, prefix, addr.Port)
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stream, err := dial(ctx, fmt.Sprintf("%s #%d", prefix, connectionsCreated), dialer, addr.Port)
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if err != nil {
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klog.V(5).Infof("%s: no connection: %v", prefix, err)
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klog.Errorf("%s: no connection: %v", prefix, err)
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break
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}
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// Make the connection available to Accept below.
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@ -166,18 +140,24 @@ func Listen(ctx context.Context, clientset kubernetes.Interface, restConfig *res
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// Portforwarding and polling for connections run in the background.
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go func() {
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for {
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fw, err := prepareForwarding()
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if err == nil {
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runForwarding(fw)
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} else {
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if apierrors.IsNotFound(err) {
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// This is normal, the pod isn't running yet. Log with lower severity.
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klog.V(5).Infof("prepare forwarding %s: %v", addr, err)
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} else {
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klog.Errorf("prepare forwarding %s: %v", addr, err)
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running := false
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pod, err := clientset.CoreV1().Pods(addr.Namespace).Get(ctx, addr.PodName, metav1.GetOptions{})
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if err != nil {
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klog.V(5).Infof("checking for container %q in pod %s/%s: %v", addr.ContainerName, addr.Namespace, addr.PodName, err)
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}
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for i, status := range pod.Status.ContainerStatuses {
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if pod.Spec.Containers[i].Name == addr.ContainerName &&
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status.State.Running != nil {
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running = true
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break
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}
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}
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if running {
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klog.V(2).Infof("container %q in pod %s/%s is running", addr.ContainerName, addr.Namespace, addr.PodName)
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runForwarding()
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}
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select {
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case <-ctx.Done():
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return
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@ -209,27 +189,32 @@ func (a Addr) String() string {
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return fmt.Sprintf("%s/%s:%d", a.Namespace, a.PodName, a.Port)
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}
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// remotePort is a stripped down version of client-go/tools/portforward minus
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// the local listeners.
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type remotePort struct {
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type stream struct {
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httpstream.Stream
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streamConn httpstream.Connection
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requestIDLock sync.Mutex
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requestID int
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}
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func (rp *remotePort) dial(ctx context.Context, prefix string, port int) (httpstream.Stream, error) {
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requestID := rp.nextRequestID()
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func dial(ctx context.Context, prefix string, dialer httpstream.Dialer, port int) (s *stream, finalErr error) {
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streamConn, _, err := dialer.Dial(portforward.PortForwardProtocolV1Name)
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if err != nil {
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return nil, fmt.Errorf("dialer failed: %v", err)
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}
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requestID := "1"
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defer func() {
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if finalErr != nil {
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streamConn.Close()
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}
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}()
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// create error stream
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headers := http.Header{}
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headers.Set(v1.StreamType, v1.StreamTypeError)
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headers.Set(v1.PortHeader, fmt.Sprintf("%d", port))
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headers.Set(v1.PortForwardRequestIDHeader, strconv.Itoa(requestID))
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headers.Set(v1.PortForwardRequestIDHeader, requestID)
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// We're not writing to this stream, just reading an error message from it.
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// This happens asynchronously.
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errorStream, err := rp.streamConn.CreateStream(headers)
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errorStream, err := streamConn.CreateStream(headers)
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if err != nil {
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return nil, fmt.Errorf("error creating error stream: %v", err)
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}
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@ -246,24 +231,20 @@ func (rp *remotePort) dial(ctx context.Context, prefix string, port int) (httpst
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// create data stream
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headers.Set(v1.StreamType, v1.StreamTypeData)
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dataStream, err := rp.streamConn.CreateStream(headers)
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dataStream, err := streamConn.CreateStream(headers)
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if err != nil {
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return nil, fmt.Errorf("error creating data stream: %v", err)
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}
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return dataStream, nil
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return &stream{
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Stream: dataStream,
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streamConn: streamConn,
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}, nil
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}
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func (rp *remotePort) Close() {
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rp.streamConn.Close()
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}
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func (rp *remotePort) nextRequestID() int {
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rp.requestIDLock.Lock()
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defer rp.requestIDLock.Unlock()
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id := rp.requestID
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rp.requestID++
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return id
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func (s *stream) Close() {
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s.Stream.Close()
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s.streamConn.Close()
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}
|
||||
|
||||
type listener struct {
|
||||
@ -292,7 +273,7 @@ func (l *listener) Accept() (net.Conn, error) {
|
||||
}
|
||||
|
||||
type connection struct {
|
||||
stream httpstream.Stream
|
||||
stream *stream
|
||||
addr Addr
|
||||
counter int32
|
||||
closed *int32
|
||||
@ -346,7 +327,8 @@ func (c *connection) Close() error {
|
||||
atomic.AddInt32(c.closed, 1)
|
||||
c.closed = nil
|
||||
}
|
||||
return c.stream.Close()
|
||||
c.stream.Close()
|
||||
return nil
|
||||
}
|
||||
|
||||
func (l *listener) Addr() net.Addr {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user