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181b5632bf
* MM-26883/26884: properly identify interface name for test services We were just hardcoding to dockerhost which would only work inside a CI environment. This PR generalizes the logic to use fallbacks if dockerhost is not available. * Incorporate review comments
75 lines
1.9 KiB
Go
75 lines
1.9 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package testutils
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import (
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"bytes"
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"io"
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"net"
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"os"
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"os/exec"
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"path/filepath"
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"runtime"
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"strconv"
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"time"
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"github.com/mattermost/mattermost-server/v5/utils/fileutils"
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)
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func ReadTestFile(name string) ([]byte, error) {
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path, _ := fileutils.FindDir("tests")
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file, err := os.Open(filepath.Join(path, name))
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if err != nil {
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return nil, err
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}
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defer file.Close()
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data := &bytes.Buffer{}
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if _, err := io.Copy(data, file); err != nil {
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return nil, err
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} else {
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return data.Bytes(), nil
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}
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}
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// GetInterface returns the best match of an interface that might be listening on a given port.
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// This is helpful when a test is being run in a CI environment under docker.
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func GetInterface(port int) string {
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dial := func(iface string, port int) bool {
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c, err := net.DialTimeout("tcp", iface+":"+strconv.Itoa(port), time.Second)
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if err != nil {
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return false
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}
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c.Close()
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return true
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}
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// First, we check dockerhost
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iface := "dockerhost"
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if ok := dial(iface, port); ok {
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return iface
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}
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// If not, we check localhost
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iface = "localhost"
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if ok := dial(iface, port); ok {
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return iface
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}
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// If nothing works, we just attempt to use a hack and get the interface IP.
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// https://stackoverflow.com/a/37212665/4962526.
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cmdStr := ""
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switch runtime.GOOS {
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// Using ip address for Linux, ifconfig for Darwin.
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case "linux":
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cmdStr = `ip address | grep -E "([0-9]{1,3}\.){3}[0-9]{1,3}" | grep -v 127.0.0.1 | awk '{ print $2 }' | cut -f2 -d: | cut -f1 -d/ | head -n1`
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case "darwin":
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cmdStr = `ifconfig | grep -E "([0-9]{1,3}\.){3}[0-9]{1,3}" | grep -v 127.0.0.1 | awk '{ print $2 }' | cut -f2 -d: | head -n1`
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default:
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return ""
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}
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cmd := exec.Command("bash", "-c", cmdStr)
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out, err := cmd.CombinedOutput()
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if err != nil {
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return ""
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}
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return string(out)
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}
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