traefik/integration/access_log_test.go

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package integration
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import (
"fmt"
"io/ioutil"
"net"
"net/http"
"net/http/httptest"
"os"
"strings"
"time"
"github.com/containous/traefik/integration/try"
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"github.com/go-check/check"
"github.com/mattn/go-shellwords"
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checker "github.com/vdemeester/shakers"
)
const (
traefikTestLogFile = "traefik.log"
traefikTestAccessLogFile = "access.log"
)
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// AccessLogSuite
type AccessLogSuite struct{ BaseSuite }
func (s *AccessLogSuite) TestAccessLog(c *check.C) {
// Ensure working directory is clean
os.Remove(traefikTestAccessLogFile)
os.Remove(traefikTestLogFile)
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// Start Traefik
cmd, _ := s.cmdTraefik(withConfigFile("fixtures/access_log_config.toml"))
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err := cmd.Start()
c.Assert(err, checker.IsNil)
defer cmd.Process.Kill()
defer os.Remove(traefikTestAccessLogFile)
defer os.Remove(traefikTestLogFile)
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err = try.Do(1*time.Second, func() error {
if _, err := os.Stat(traefikTestLogFile); err != nil {
return fmt.Errorf("could not get stats for log file: %s", err)
}
return nil
})
c.Assert(err, checker.IsNil)
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// Verify Traefik started OK
traefikLog, err := ioutil.ReadFile(traefikTestLogFile)
c.Assert(err, checker.IsNil)
if len(traefikLog) > 0 {
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fmt.Printf("%s\n", string(traefikLog))
c.Assert(traefikLog, checker.HasLen, 0)
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}
// Start test servers
ts1 := startAccessLogServer(8081)
defer ts1.Close()
ts2 := startAccessLogServer(8082)
defer ts2.Close()
ts3 := startAccessLogServer(8083)
defer ts3.Close()
// Make some requests
err = try.GetRequest("http://127.0.0.1:8000/test1", 500*time.Millisecond)
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c.Assert(err, checker.IsNil)
err = try.GetRequest("http://127.0.0.1:8000/test2", 500*time.Millisecond)
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c.Assert(err, checker.IsNil)
err = try.GetRequest("http://127.0.0.1:8000/test2", 500*time.Millisecond)
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c.Assert(err, checker.IsNil)
// Verify access.log output as expected
accessLog, err := ioutil.ReadFile(traefikTestAccessLogFile)
c.Assert(err, checker.IsNil)
lines := strings.Split(string(accessLog), "\n")
count := 0
for i, line := range lines {
if len(line) > 0 {
count++
tokens, err := shellwords.Parse(line)
c.Assert(err, checker.IsNil)
c.Assert(tokens, checker.HasLen, 14)
c.Assert(tokens[6], checker.Matches, `^\d{3}$`)
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c.Assert(tokens[10], checker.Equals, fmt.Sprintf("%d", i+1))
c.Assert(tokens[11], checker.HasPrefix, "frontend")
c.Assert(tokens[12], checker.HasPrefix, "http://127.0.0.1:808")
c.Assert(tokens[13], checker.Matches, `^\d+ms$`)
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}
}
c.Assert(count, checker.GreaterOrEqualThan, 3)
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// Verify no other Traefik problems
traefikLog, err = ioutil.ReadFile(traefikTestLogFile)
c.Assert(err, checker.IsNil)
if len(traefikLog) > 0 {
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fmt.Printf("%s\n", string(traefikLog))
c.Assert(traefikLog, checker.HasLen, 0)
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}
}
func startAccessLogServer(port int) (ts *httptest.Server) {
handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
fmt.Fprintf(w, "Received query %s!\n", r.URL.Path[1:])
})
if listener, err := net.Listen("tcp", fmt.Sprintf("127.0.0.1:%d", port)); err != nil {
panic(err)
} else {
ts = &httptest.Server{
Listener: listener,
Config: &http.Server{Handler: handler},
}
ts.Start()
}
return
}