github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-30 23:15:14 +00:00
Code Issues Projects Releases Wiki Activity

Move PokeUDP() to e2e service subpkg

Browse Source 
PokeUDP() is used at e2e service subpackage only, so this moves the
function and the related code to the subpackage for making e2e core
framework small.
This commit is contained in:
Kenichi Omichi 2019-10-24 22:47:49 +00:00
parent 3f402534f3
commit a74b63d335
2 changed files with 137 additions and 136 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

130
test/e2e/framework/networking_utils.go
View File

@ -830,136 +830,6 @@ func httpGetNoConnectionPoolTimeout(url string, timeout time.Duration) (*http.Re
return client.Get(url)
}
// UDPPokeParams is a struct for UDP poke parameters.
type UDPPokeParams struct {
Timeout time.Duration
Response string
}
// UDPPokeResult is a struct for UDP poke result.
type UDPPokeResult struct {
Status UDPPokeStatus
Error error // if there was any error
Response []byte // if code != 0
}
// UDPPokeStatus is string for representing UDP poke status.
type UDPPokeStatus string
const (
// UDPSuccess is UDP poke status which is success.
UDPSuccess UDPPokeStatus = "Success"
// UDPError is UDP poke status which is error.
UDPError UDPPokeStatus = "UnknownError"
// UDPTimeout is UDP poke status which is timeout.
UDPTimeout UDPPokeStatus = "TimedOut"
// UDPRefused is UDP poke status which is connection refused.
UDPRefused UDPPokeStatus = "ConnectionRefused"
// UDPBadResponse is UDP poke status which is bad response.
UDPBadResponse UDPPokeStatus = "BadResponse"
// Any time we add new errors, we should audit all callers of this.
)
// PokeUDP tries to connect to a host on a port and send the given request. Callers
// can specify additional success parameters, if desired.
//
// The result status will be characterized as precisely as possible, given the
// known users of this.
//
// The result error will be populated for any status other than Success.
//
// The result response will be populated if the UDP transaction was completed, even
// if the other test params make this a failure).
func PokeUDP(host string, port int, request string, params *UDPPokeParams) UDPPokeResult {
hostPort := net.JoinHostPort(host, strconv.Itoa(port))
url := fmt.Sprintf("udp://%s", hostPort)
ret := UDPPokeResult{}
// Sanity check inputs, because it has happened. These are the only things
// that should hard fail the test - they are basically ASSERT()s.
if host == "" {
Failf("Got empty host for UDP poke (%s)", url)
return ret
}
if port == 0 {
Failf("Got port==0 for UDP poke (%s)", url)
return ret
}
// Set default params.
if params == nil {
params = &UDPPokeParams{}
}
Logf("Poking %v", url)
con, err := net.Dial("udp", hostPort)
if err != nil {
ret.Status = UDPError
ret.Error = err
Logf("Poke(%q): %v", url, err)
return ret
}
_, err = con.Write([]byte(fmt.Sprintf("%s\n", request)))
if err != nil {
ret.Error = err
neterr, ok := err.(net.Error)
if ok && neterr.Timeout() {
ret.Status = UDPTimeout
} else if strings.Contains(err.Error(), "connection refused") {
ret.Status = UDPRefused
} else {
ret.Status = UDPError
}
Logf("Poke(%q): %v", url, err)
return ret
}
if params.Timeout != 0 {
err = con.SetDeadline(time.Now().Add(params.Timeout))
if err != nil {
ret.Status = UDPError
ret.Error = err
Logf("Poke(%q): %v", url, err)
return ret
}
}
bufsize := len(params.Response) + 1
if bufsize == 0 {
bufsize = 4096
}
var buf = make([]byte, bufsize)
n, err := con.Read(buf)
if err != nil {
ret.Error = err
neterr, ok := err.(net.Error)
if ok && neterr.Timeout() {
ret.Status = UDPTimeout
} else if strings.Contains(err.Error(), "connection refused") {
ret.Status = UDPRefused
} else {
ret.Status = UDPError
}
Logf("Poke(%q): %v", url, err)
return ret
}
ret.Response = buf[0:n]
if params.Response != "" && string(ret.Response) != params.Response {
ret.Status = UDPBadResponse
ret.Error = fmt.Errorf("response does not match expected string: %q", string(ret.Response))
Logf("Poke(%q): %v", url, ret.Error)
return ret
}
ret.Status = UDPSuccess
Logf("Poke(%q): success", url)
return ret
}
// TestUnderTemporaryNetworkFailure blocks outgoing network traffic on 'node'. Then runs testFunc and returns its status.
// At the end (even in case of errors), the network traffic is brought back to normal.
// This function executes commands on a node so it will work only for some

143
test/e2e/framework/service/util.go
View File

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