ITQC/containernetworking-plugins
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Safely print error

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Format plugin code

Signed-off-by: Aidan Obley <aobley@pivotal.io>
This commit is contained in:
Tyler Schultz 2018-03-12 15:53:23 -07:00 committed by Aidan Obley
parent d2f6472474
commit fe0cf201f8
2 changed files with 27 additions and 31 deletions
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50
integration/integration_linux_test.go
View File

@ -105,9 +105,6 @@ var _ = Describe("Basic PTP using cnitool", func() {
basicBridgeEnv TestEnv
chainedBridgeBandwidthEnv TestEnv
chainedBridgeBandwidthSession, basicBridgeSession *gexec.Session
chainedBridgeBandwidthPort, basicBridgePort int
chainedBridgeIP, basicBridgeIP string
runtimeWithLimit, runtimeWithoutLimit time.Duration
)
BeforeEach(func() {
@ -154,43 +151,38 @@ var _ = Describe("Basic PTP using cnitool", func() {
Measure("limits traffic only on the restricted bandwith veth device", func(b Benchmarker) {
ipRegexp := regexp.MustCompile("10\\.11\\.2\\.\\d{1,3}")
By(fmt.Sprintf("adding %s to %s\n\n", "chained-bridge-bandwidth", contNS1.ShortName()), func() {
chainedBridgeBandwidthEnv.runInNS(hostNS, cnitoolBin, "add", "network-chain-test", contNS1.LongName())
chainedBridgeIP = ipRegexp.FindString(chainedBridgeBandwidthEnv.runInNS(contNS1, "ip", "addr"))
Expect(chainedBridgeIP).To(ContainSubstring("10.11.2."))
})
By(fmt.Sprintf("adding %s to %s\n\n", "chained-bridge-bandwidth", contNS1.ShortName()))
chainedBridgeBandwidthEnv.runInNS(hostNS, cnitoolBin, "add", "network-chain-test", contNS1.LongName())
chainedBridgeIP := ipRegexp.FindString(chainedBridgeBandwidthEnv.runInNS(contNS1, "ip", "addr"))
Expect(chainedBridgeIP).To(ContainSubstring("10.11.2."))
By(fmt.Sprintf("adding %s to %s\n\n", "basic-bridge", contNS2.ShortName()), func() {
basicBridgeEnv.runInNS(hostNS, cnitoolBin, "add", "network-chain-test", contNS2.LongName())
basicBridgeIP = ipRegexp.FindString(basicBridgeEnv.runInNS(contNS2, "ip", "addr"))
Expect(basicBridgeIP).To(ContainSubstring("10.11.2."))
})
By(fmt.Sprintf("adding %s to %s\n\n", "basic-bridge", contNS2.ShortName()))
basicBridgeEnv.runInNS(hostNS, cnitoolBin, "add", "network-chain-test", contNS2.LongName())
basicBridgeIP := ipRegexp.FindString(basicBridgeEnv.runInNS(contNS2, "ip", "addr"))
Expect(basicBridgeIP).To(ContainSubstring("10.11.2."))
var chainedBridgeBandwidthPort, basicBridgePort int
var err error
By(fmt.Sprintf("starting echo server in %s\n\n", contNS1.ShortName()), func() {
chainedBridgeBandwidthPort, chainedBridgeBandwidthSession, err = startEchoServerInNamespace(contNS1)
Expect(err).ToNot(HaveOccurred())
})
By(fmt.Sprintf("starting echo server in %s\n\n", contNS1.ShortName()))
chainedBridgeBandwidthPort, chainedBridgeBandwidthSession, err = startEchoServerInNamespace(contNS1)
Expect(err).ToNot(HaveOccurred())
By(fmt.Sprintf("starting echo server in %s\n\n", contNS2.ShortName()), func() {
basicBridgePort, basicBridgeSession, err = startEchoServerInNamespace(contNS2)
Expect(err).ToNot(HaveOccurred())
})
By(fmt.Sprintf("starting echo server in %s\n\n", contNS2.ShortName()))
basicBridgePort, basicBridgeSession, err = startEchoServerInNamespace(contNS2)
Expect(err).ToNot(HaveOccurred())
packetInBytes := 20000 // The shaper needs to 'warm'. Send enough to cause it to throttle,
// balanced by run time.
By(fmt.Sprintf("sending tcp traffic to the chained, bridged, traffic shaped container on ip address '%s:%d'\n\n", chainedBridgeIP, chainedBridgeBandwidthPort), func() {
runtimeWithLimit = b.Time("with chained bridge and bandwidth plugins", func() {
makeTcpClientInNS(hostNS.ShortName(), chainedBridgeIP, chainedBridgeBandwidthPort, packetInBytes)
})
By(fmt.Sprintf("sending tcp traffic to the chained, bridged, traffic shaped container on ip address '%s:%d'\n\n", chainedBridgeIP, chainedBridgeBandwidthPort))
runtimeWithLimit := b.Time("with chained bridge and bandwidth plugins", func() {
makeTcpClientInNS(hostNS.ShortName(), chainedBridgeIP, chainedBridgeBandwidthPort, packetInBytes)
})
By(fmt.Sprintf("sending tcp traffic to the basic bridged container on ip address '%s:%d'\n\n", basicBridgeIP, basicBridgePort), func() {
runtimeWithoutLimit = b.Time("with basic bridged plugin", func() {
makeTcpClientInNS(hostNS.ShortName(), basicBridgeIP, basicBridgePort, packetInBytes)
})
By(fmt.Sprintf("sending tcp traffic to the basic bridged container on ip address '%s:%d'\n\n", basicBridgeIP, basicBridgePort))
runtimeWithoutLimit := b.Time("with basic bridged plugin", func() {
makeTcpClientInNS(hostNS.ShortName(), basicBridgeIP, basicBridgePort, packetInBytes)
})
Expect(runtimeWithLimit).To(BeNumerically(">", runtimeWithoutLimit+1000*time.Millisecond))

8
plugins/meta/bandwidth/main.go
View File

@ -24,9 +24,9 @@ import (
"github.com/containernetworking/cni/pkg/types/current"
"github.com/containernetworking/cni/pkg/version"
"errors"
"github.com/containernetworking/plugins/pkg/ip"
"github.com/vishvananda/netlink"
"errors"
)
type PluginConf struct {
@ -113,6 +113,10 @@ func getMTU(deviceName string) (int, error) {
}
func getHostInterface(interfaces []*current.Interface) (*current.Interface, error) {
if len(interfaces) == 0 {
return nil, errors.New("no interfaces provided")
}
var err error
for _, iface := range interfaces {
if iface.Sandbox == "" { // host interface
@ -122,7 +126,7 @@ func getHostInterface(interfaces []*current.Interface) (*current.Interface, erro
}
}
}
return nil, errors.New("no host interface found: " + err.Error())
return nil, errors.New(fmt.Sprintf("no host interface found. last error: %s", err))
}
func cmdAdd(args *skel.CmdArgs) error {