mirror of
https://github.com/traefik/traefik.git
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115 lines
2.7 KiB
Go
115 lines
2.7 KiB
Go
package integration
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import (
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"net"
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"strings"
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"testing"
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"time"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/stretchr/testify/suite"
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"github.com/traefik/traefik/v3/integration/try"
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)
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// TCPHealthCheckSuite test suite for TCP health checks.
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type TCPHealthCheckSuite struct {
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BaseSuite
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whoamitcp1IP string
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whoamitcp2IP string
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}
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func TestTCPHealthCheckSuite(t *testing.T) {
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suite.Run(t, new(TCPHealthCheckSuite))
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}
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func (s *TCPHealthCheckSuite) SetupSuite() {
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s.BaseSuite.SetupSuite()
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s.createComposeProject("tcp_healthcheck")
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s.composeUp()
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s.whoamitcp1IP = s.getComposeServiceIP("whoamitcp1")
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s.whoamitcp2IP = s.getComposeServiceIP("whoamitcp2")
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}
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func (s *TCPHealthCheckSuite) TearDownSuite() {
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s.BaseSuite.TearDownSuite()
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}
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func (s *TCPHealthCheckSuite) TestSimpleConfiguration() {
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file := s.adaptFile("fixtures/tcp_healthcheck/simple.toml", struct {
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Server1 string
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Server2 string
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}{s.whoamitcp1IP, s.whoamitcp2IP})
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s.traefikCmd(withConfigFile(file))
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// Wait for Traefik.
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err := try.GetRequest("http://127.0.0.1:8080/api/rawdata", 60*time.Second, try.BodyContains("HostSNI(`*`)"))
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require.NoError(s.T(), err)
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// Test that we can consistently reach servers through load balancing.
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var (
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successfulConnectionsWhoamitcp1 int
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successfulConnectionsWhoamitcp2 int
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)
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for range 4 {
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out := s.whoIs("127.0.0.1:8093")
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require.NoError(s.T(), err)
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if strings.Contains(out, "whoamitcp1") {
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successfulConnectionsWhoamitcp1++
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}
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if strings.Contains(out, "whoamitcp2") {
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successfulConnectionsWhoamitcp2++
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}
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}
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assert.Equal(s.T(), 2, successfulConnectionsWhoamitcp1)
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assert.Equal(s.T(), 2, successfulConnectionsWhoamitcp2)
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// Stop one whoamitcp2 containers to simulate health check failure.
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conn, err := net.DialTimeout("tcp", s.whoamitcp2IP+":8080", time.Second)
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require.NoError(s.T(), err)
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s.T().Cleanup(func() {
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_ = conn.Close()
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})
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s.composeStop("whoamitcp2")
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// Wait for the health check to detect the failure.
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time.Sleep(1 * time.Second)
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// Verify that the remaining server still responds.
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for range 3 {
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out := s.whoIs("127.0.0.1:8093")
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require.NoError(s.T(), err)
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assert.Contains(s.T(), out, "whoamitcp1")
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}
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}
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// connectTCP connects to the given TCP address and returns the response.
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func (s *TCPHealthCheckSuite) whoIs(addr string) string {
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s.T().Helper()
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conn, err := net.DialTimeout("tcp", addr, time.Second)
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require.NoError(s.T(), err)
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s.T().Cleanup(func() {
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_ = conn.Close()
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})
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_, err = conn.Write([]byte("WHO"))
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require.NoError(s.T(), err)
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_ = conn.SetReadDeadline(time.Now().Add(2 * time.Second))
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buffer := make([]byte, 1024)
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n, err := conn.Read(buffer)
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require.NoError(s.T(), err)
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return string(buffer[:n])
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}
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