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Merge pull request #84313 from oomichi/move-UDPPoke
Move PokeUDP() to e2e service subpkg
This commit is contained in:
Kubernetes Prow Robot
GitHub
commit
f06b3b8c10
@ -819,136 +819,6 @@ func httpGetNoConnectionPoolTimeout(url string, timeout time.Duration) (*http.Re
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return client.Get(url)
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}
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// UDPPokeParams is a struct for UDP poke parameters.
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type UDPPokeParams struct {
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Timeout time.Duration
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Response string
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}
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// UDPPokeResult is a struct for UDP poke result.
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type UDPPokeResult struct {
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Status UDPPokeStatus
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Error error // if there was any error
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Response []byte // if code != 0
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}
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// UDPPokeStatus is string for representing UDP poke status.
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type UDPPokeStatus string
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const (
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// UDPSuccess is UDP poke status which is success.
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UDPSuccess UDPPokeStatus = "Success"
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// UDPError is UDP poke status which is error.
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UDPError UDPPokeStatus = "UnknownError"
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// UDPTimeout is UDP poke status which is timeout.
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UDPTimeout UDPPokeStatus = "TimedOut"
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// UDPRefused is UDP poke status which is connection refused.
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UDPRefused UDPPokeStatus = "ConnectionRefused"
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// UDPBadResponse is UDP poke status which is bad response.
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UDPBadResponse UDPPokeStatus = "BadResponse"
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// Any time we add new errors, we should audit all callers of this.
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)
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// PokeUDP tries to connect to a host on a port and send the given request. Callers
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// can specify additional success parameters, if desired.
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//
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// The result status will be characterized as precisely as possible, given the
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// known users of this.
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//
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// The result error will be populated for any status other than Success.
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//
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// The result response will be populated if the UDP transaction was completed, even
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// if the other test params make this a failure).
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func PokeUDP(host string, port int, request string, params *UDPPokeParams) UDPPokeResult {
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hostPort := net.JoinHostPort(host, strconv.Itoa(port))
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url := fmt.Sprintf("udp://%s", hostPort)
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ret := UDPPokeResult{}
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// Sanity check inputs, because it has happened. These are the only things
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// that should hard fail the test - they are basically ASSERT()s.
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if host == "" {
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Failf("Got empty host for UDP poke (%s)", url)
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return ret
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}
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if port == 0 {
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Failf("Got port==0 for UDP poke (%s)", url)
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return ret
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}
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// Set default params.
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if params == nil {
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params = &UDPPokeParams{}
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}
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Logf("Poking %v", url)
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con, err := net.Dial("udp", hostPort)
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if err != nil {
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ret.Status = UDPError
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ret.Error = err
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Logf("Poke(%q): %v", url, err)
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return ret
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}
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_, err = con.Write([]byte(fmt.Sprintf("%s\n", request)))
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if err != nil {
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ret.Error = err
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neterr, ok := err.(net.Error)
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if ok && neterr.Timeout() {
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ret.Status = UDPTimeout
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} else if strings.Contains(err.Error(), "connection refused") {
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ret.Status = UDPRefused
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} else {
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ret.Status = UDPError
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}
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Logf("Poke(%q): %v", url, err)
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return ret
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}
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if params.Timeout != 0 {
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err = con.SetDeadline(time.Now().Add(params.Timeout))
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if err != nil {
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ret.Status = UDPError
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ret.Error = err
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Logf("Poke(%q): %v", url, err)
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return ret
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}
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}
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bufsize := len(params.Response) + 1
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if bufsize == 0 {
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bufsize = 4096
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}
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var buf = make([]byte, bufsize)
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n, err := con.Read(buf)
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if err != nil {
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ret.Error = err
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neterr, ok := err.(net.Error)
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if ok && neterr.Timeout() {
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ret.Status = UDPTimeout
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} else if strings.Contains(err.Error(), "connection refused") {
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ret.Status = UDPRefused
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} else {
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ret.Status = UDPError
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}
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Logf("Poke(%q): %v", url, err)
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return ret
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}
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ret.Response = buf[0:n]
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if params.Response != "" && string(ret.Response) != params.Response {
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ret.Status = UDPBadResponse
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ret.Error = fmt.Errorf("response does not match expected string: %q", string(ret.Response))
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Logf("Poke(%q): %v", url, ret.Error)
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return ret
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}
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ret.Status = UDPSuccess
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Logf("Poke(%q): success", url)
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return ret
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}
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// TestUnderTemporaryNetworkFailure blocks outgoing network traffic on 'node'. Then runs testFunc and returns its status.
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// At the end (even in case of errors), the network traffic is brought back to normal.
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// This function executes commands on a node so it will work only for some
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@ -22,6 +22,7 @@ import (
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"net"
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"net/http"
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"strconv"
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"strings"
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"time"
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utilnet "k8s.io/apimachinery/pkg/util/net"
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@ -90,11 +91,11 @@ func TestRejectedHTTP(host string, port int, timeout time.Duration) {
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// TestReachableUDP tests that the given host serves UDP on the given port.
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func TestReachableUDP(host string, port int, timeout time.Duration) {
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pollfn := func() (bool, error) {
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result := framework.PokeUDP(host, port, "echo hello", &framework.UDPPokeParams{
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result := pokeUDP(host, port, "echo hello", &UDPPokeParams{
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Timeout: 3 * time.Second,
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Response: "hello",
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})
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if result.Status == framework.UDPSuccess {
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if result.Status == UDPSuccess {
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return true, nil
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}
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return false, nil // caller can retry
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@ -108,8 +109,8 @@ func TestReachableUDP(host string, port int, timeout time.Duration) {
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// TestNotReachableUDP tests that the given host doesn't serve UDP on the given port.
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func TestNotReachableUDP(host string, port int, timeout time.Duration) {
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pollfn := func() (bool, error) {
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result := framework.PokeUDP(host, port, "echo hello", &framework.UDPPokeParams{Timeout: 3 * time.Second})
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if result.Status != framework.UDPSuccess && result.Status != framework.UDPError {
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result := pokeUDP(host, port, "echo hello", &UDPPokeParams{Timeout: 3 * time.Second})
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if result.Status != UDPSuccess && result.Status != UDPError {
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return true, nil
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}
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return false, nil // caller can retry
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@ -122,8 +123,8 @@ func TestNotReachableUDP(host string, port int, timeout time.Duration) {
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// TestRejectedUDP tests that the given host rejects a UDP request on the given port.
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func TestRejectedUDP(host string, port int, timeout time.Duration) {
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pollfn := func() (bool, error) {
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result := framework.PokeUDP(host, port, "echo hello", &framework.UDPPokeParams{Timeout: 3 * time.Second})
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if result.Status == framework.UDPRefused {
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result := pokeUDP(host, port, "echo hello", &UDPPokeParams{Timeout: 3 * time.Second})
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if result.Status == UDPRefused {
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return true, nil
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}
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return false, nil // caller can retry
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@ -211,3 +212,133 @@ func GetHTTPContent(host string, port int, timeout time.Duration, url string) by
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}
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return body
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}
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// UDPPokeParams is a struct for UDP poke parameters.
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type UDPPokeParams struct {
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Timeout time.Duration
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Response string
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}
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// UDPPokeResult is a struct for UDP poke result.
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type UDPPokeResult struct {
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Status UDPPokeStatus
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Error error // if there was any error
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Response []byte // if code != 0
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}
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// UDPPokeStatus is string for representing UDP poke status.
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type UDPPokeStatus string
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const (
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// UDPSuccess is UDP poke status which is success.
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UDPSuccess UDPPokeStatus = "Success"
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// UDPError is UDP poke status which is error.
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UDPError UDPPokeStatus = "UnknownError"
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// UDPTimeout is UDP poke status which is timeout.
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UDPTimeout UDPPokeStatus = "TimedOut"
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// UDPRefused is UDP poke status which is connection refused.
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UDPRefused UDPPokeStatus = "ConnectionRefused"
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// UDPBadResponse is UDP poke status which is bad response.
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UDPBadResponse UDPPokeStatus = "BadResponse"
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// Any time we add new errors, we should audit all callers of this.
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)
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// pokeUDP tries to connect to a host on a port and send the given request. Callers
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// can specify additional success parameters, if desired.
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//
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// The result status will be characterized as precisely as possible, given the
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// known users of this.
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//
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// The result error will be populated for any status other than Success.
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//
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// The result response will be populated if the UDP transaction was completed, even
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// if the other test params make this a failure).
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func pokeUDP(host string, port int, request string, params *UDPPokeParams) UDPPokeResult {
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hostPort := net.JoinHostPort(host, strconv.Itoa(port))
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url := fmt.Sprintf("udp://%s", hostPort)
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ret := UDPPokeResult{}
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// Sanity check inputs, because it has happened. These are the only things
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// that should hard fail the test - they are basically ASSERT()s.
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if host == "" {
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framework.Failf("Got empty host for UDP poke (%s)", url)
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return ret
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}
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if port == 0 {
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framework.Failf("Got port==0 for UDP poke (%s)", url)
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return ret
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}
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// Set default params.
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if params == nil {
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params = &UDPPokeParams{}
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}
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framework.Logf("Poking %v", url)
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con, err := net.Dial("udp", hostPort)
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if err != nil {
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ret.Status = UDPError
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ret.Error = err
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framework.Logf("Poke(%q): %v", url, err)
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return ret
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}
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_, err = con.Write([]byte(fmt.Sprintf("%s\n", request)))
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if err != nil {
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ret.Error = err
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neterr, ok := err.(net.Error)
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if ok && neterr.Timeout() {
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ret.Status = UDPTimeout
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} else if strings.Contains(err.Error(), "connection refused") {
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ret.Status = UDPRefused
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} else {
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ret.Status = UDPError
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}
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framework.Logf("Poke(%q): %v", url, err)
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return ret
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}
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if params.Timeout != 0 {
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err = con.SetDeadline(time.Now().Add(params.Timeout))
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if err != nil {
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ret.Status = UDPError
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ret.Error = err
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framework.Logf("Poke(%q): %v", url, err)
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return ret
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}
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}
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bufsize := len(params.Response) + 1
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if bufsize == 0 {
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bufsize = 4096
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}
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var buf = make([]byte, bufsize)
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n, err := con.Read(buf)
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if err != nil {
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ret.Error = err
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neterr, ok := err.(net.Error)
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if ok && neterr.Timeout() {
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ret.Status = UDPTimeout
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} else if strings.Contains(err.Error(), "connection refused") {
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ret.Status = UDPRefused
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} else {
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ret.Status = UDPError
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}
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framework.Logf("Poke(%q): %v", url, err)
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return ret
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}
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ret.Response = buf[0:n]
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if params.Response != "" && string(ret.Response) != params.Response {
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ret.Status = UDPBadResponse
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ret.Error = fmt.Errorf("response does not match expected string: %q", string(ret.Response))
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framework.Logf("Poke(%q): %v", url, ret.Error)
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return ret
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}
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ret.Status = UDPSuccess
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framework.Logf("Poke(%q): success", url)
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return ret
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}
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