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exporter_test.go
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exporter_test.go
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package internal
import (
"bytes"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
"crypto/x509"
"crypto/x509/pkix"
"encoding/pem"
"fmt"
"log"
"math/big"
"net"
"net/http"
"os"
"path"
"path/filepath"
"runtime"
"strings"
"testing"
"time"
"github.com/prometheus/client_golang/prometheus"
model "github.com/prometheus/client_model/go"
"github.com/prometheus/common/expfmt"
"github.com/stretchr/testify/assert"
)
const listenAddress = "127.0.0.1:9793"
const port = 9793
func TestRegularStartup(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
e := &Exporter{
ListenAddress: listenAddress,
Files: []string{path.Join(filepath.Dir(filename), "../test/basic.pem")},
}
//nolint:errcheck
go e.ListenAndServe()
time.Sleep(3 * time.Second)
res, err := http.Get(fmt.Sprintf("http://localhost:%d/metrics", port))
if err != nil || res.StatusCode != 200 {
t.Errorf("exporter did not start within 3 seconds")
return
}
//nolint:errcheck
e.Shutdown()
}
func TestNoInput(t *testing.T) {
testRequest(t, &Exporter{}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_cert_expired")
assert.Empty(t, metric, "found x509_cert_expired despite nothing is watched")
})
}
func TestSinglePEMNotExpired(t *testing.T) {
testSinglePEM(t, 0, time.Now())
}
func TestSinglePEMExpired(t *testing.T) {
testSinglePEM(t, 1, time.Now().Add(-2*time.Hour))
}
func TestSinglePEMBehindSymlink(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
Files: []string{path.Join(filepath.Dir(filename), "../test/link.pem")},
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, metric, 1, "missing x509_cert_expired metric(s)")
})
testRequest(t, &Exporter{
Files: []string{path.Join(filepath.Dir(filename), "../test/badlink.pem")},
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, metric, 1, "missing x509_cert_expired metric(s)")
assert.Len(t, getMetricsForName(metrics, "x509_read_errors"), 1)
})
testRequest(t, &Exporter{
Files: []string{path.Join(filepath.Dir(filename), "../test/badlink-relative.pem")},
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, metric, 1, "missing x509_cert_expired metric(s)")
assert.Len(t, getMetricsForName(metrics, "x509_read_errors"), 1)
})
}
func TestMultiplePEM(t *testing.T) {
notBefore := time.Now()
notAfter := notBefore.Add(time.Hour)
nbVal := float64(notBefore.Unix())
naVal := float64(notAfter.Unix())
generateCertificate("/tmp/test.pem", notBefore)
generateCertificate("/tmp/test2.pem", notBefore)
generateCertificate("/tmp/test3.pem", notBefore)
generateCertificate("/tmp/test4.pem", notBefore)
testRequest(t, &Exporter{
Files: []string{"/tmp/test.pem", "/tmp/test2.pem", "/tmp/test3.pem", "/tmp/test4.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 4, "missing x509_cert_expired metric(s)")
for _, m := range foundMetrics {
assert.Equal(t, 0., m.GetGauge().GetValue(), fmt.Sprintf("x509_cert_expired should be %f", 0.))
}
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 4, "missing x509_cert_not_before metric(s)")
for _, m := range foundNbMetrics {
assert.Equal(t, nbVal, m.GetGauge().GetValue(), fmt.Sprintf("x509_cert_not_before should be %f", nbVal))
}
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 4, "missing x509_cert_not_after metric(s)")
for _, m := range foundNaMetrics {
assert.Equal(t, naVal, m.GetGauge().GetValue(), fmt.Sprintf("x509_cert_not_after should be %f", naVal))
}
removeGeneratedCertificate("/tmp/test.pem")
removeGeneratedCertificate("/tmp/test2.pem")
removeGeneratedCertificate("/tmp/test3.pem")
removeGeneratedCertificate("/tmp/test4.pem")
})
}
func TestFolder(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
Directories: []string{path.Join(filepath.Dir(filename), "../test")},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 6, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 6, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 6, "missing x509_cert_not_after metric(s)")
})
}
func TestYAMLEmbedded(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-embedded.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2, "missing x509_cert_not_after metric(s)")
})
}
func TestYAMLPath(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-paths.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2, "missing x509_cert_not_after metric(s)")
})
}
func TestYAMLAbsolutePath(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
template, err := os.ReadFile(path.Join(filepath.Dir(filename), "../test/yaml-abs-paths.conf"))
assert.Nil(t, err)
cwd, err := os.Getwd()
assert.Nil(t, err)
data := strings.ReplaceAll(string(template), "{{PWD}}", path.Join(cwd, ".."))
err = os.WriteFile("/tmp/test-abs.yaml", []byte(data), 0644)
assert.Nil(t, err)
testRequest(t, &Exporter{
YAMLs: []string{"/tmp/test-abs.yaml"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2, "missing x509_cert_not_after metric(s)")
})
}
func TestYAMLMixed(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-mixed.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2, "missing x509_cert_not_after metric(s)")
})
}
func TestNonExistentPEMFile(t *testing.T) {
testRequest(t, &Exporter{
Files: []string{"./does-not-exists.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestNonExistentYAMLFile(t *testing.T) {
testRequest(t, &Exporter{
YAMLs: []string{"./does-not-exists.yaml"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestNonExistentDir(t *testing.T) {
testRequest(t, &Exporter{
Directories: []string{"./does-not-exists"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestNonExistentYAMLPath(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-paths-error.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestCorruptedCertInYAML(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-embedded-error.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestErrorMetrics(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
test := func(enableErrorMetrics bool) {
testRequest(t, &Exporter{
Directories: []string{path.Join(filepath.Dir(filename), "../test")},
ExposeErrorMetrics: enableErrorMetrics,
}, func(metrics []model.MetricFamily) {
errorMetric := getMetricsForName(metrics, "x509_cert_error")
if enableErrorMetrics {
errors := 0
for _, metric := range errorMetric {
if metric.GetGauge().GetValue() > 0 {
errors++
}
}
assert.Len(t, errorMetric, 22, "missing x509_read_error metrics")
assert.Equal(t, 17, errors, "missing x509_read_error metrics")
} else {
assert.Len(t, errorMetric, 0, "unexpected x509_read_error metrics")
}
errorsMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorsMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorsMetric[0].GetGauge().GetValue(), 17., "invalid x509_read_errors value")
})
}
test(false)
test(true)
}
func TestBindAddrAlreadyInUse(t *testing.T) {
listener, _ := net.Listen("tcp", listenAddress)
e := &Exporter{ListenAddress: listenAddress}
err := e.ListenAndServe()
listener.Close()
assert.NotNil(t, err, "no error was returned for bind failure")
}
func TestLoadFileAsDir(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
Directories: []string{path.Join(filepath.Dir(filename), "../test/basic.pem")},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestLoadDirAsFile(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
Files: []string{path.Join(filepath.Dir(filename), "../test")},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "missing x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "missing x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "missing x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestInvalidYAML(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/not-yaml.conf")},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/invalid-yaml.conf")},
YAMLPaths: []YAMLCertRef{
{
BasePathMatchExpr: "$.clusters",
CertMatchSubExpr: "$.badstring",
IDMatchSubExpr: "$.name",
Format: YAMLCertFormatBase64,
},
},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/invalid-yaml.conf")},
YAMLPaths: []YAMLCertRef{
{
BasePathMatchExpr: "$.clusters",
CertMatchSubExpr: "$.badarrayelem",
IDMatchSubExpr: "$.name",
Format: YAMLCertFormatBase64,
},
},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestInvalidYAMLMatchExpr(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-embedded.conf")},
YAMLPaths: []YAMLCertRef{
{
BasePathMatchExpr: "invalid",
CertMatchSubExpr: "invalid",
IDMatchSubExpr: "$.clusters[].name",
Format: YAMLCertFormatBase64,
},
},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-embedded.conf")},
YAMLPaths: []YAMLCertRef{
{
BasePathMatchExpr: "$.clusters",
CertMatchSubExpr: "$.cluster[\"certificate-authority-data\"]",
IDMatchSubExpr: "$[0]",
Format: YAMLCertFormatBase64,
},
},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 1., "invalid x509_read_errors value")
})
}
func TestMultipleCerts(t *testing.T) {
_, filename, _, _ := runtime.Caller(0)
testRequest(t, &Exporter{
YAMLs: []string{path.Join(filepath.Dir(filename), "../test/yaml-multi-certs.conf")},
YAMLPaths: []YAMLCertRef{
{
BasePathMatchExpr: "$.clusters",
CertMatchSubExpr: "$.cluster[\"certificate-authority-data\"]",
IDMatchSubExpr: "$.name",
Format: YAMLCertFormatBase64,
},
},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2, "extra x509_cert_expired metric(s)")
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2, "extra x509_cert_not_before metric(s)")
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2, "extra x509_cert_not_after metric(s)")
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 0., "invalid x509_read_errors value")
})
}
func TestMultipleErrors(t *testing.T) {
testRequest(t, &Exporter{
Files: []string{"does", "not", "exist"},
Directories: []string{"toto"},
YAMLs: []string{"lol", "aze"},
}, func(metrics []model.MetricFamily) {
errorMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Len(t, errorMetric, 1, "missing x509_read_errors metric")
assert.Equal(t, errorMetric[0].GetGauge().GetValue(), 6., "invalid x509_read_errors value")
})
}
func TestTrimPath(t *testing.T) {
certPath := "/tmp/test.pem"
generateCertificate(certPath, time.Now())
testRequest(t, &Exporter{
Files: []string{certPath},
TrimPathComponents: 1,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1, "missing x509_cert_expired metric(s)")
checkLabels(t, foundMetrics[0].GetLabel(), "/test.pem", false, 15)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1, "missing x509_cert_not_before metric(s)")
checkLabels(t, foundNbMetrics[0].GetLabel(), "/test.pem", false, 15)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1, "missing x509_cert_not_after metric(s)")
checkLabels(t, foundNaMetrics[0].GetLabel(), "/test.pem", false, 15)
removeGeneratedCertificate(certPath)
})
}
func TestDuplicateCertificate(t *testing.T) {
testRequest(t, &Exporter{
Files: []string{"../test/bad/duplicate.pem"},
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., metric[0].GetGauge().GetValue())
})
}
func TestDuplicateCertificate2(t *testing.T) {
testRequest(t, &Exporter{
Files: []string{"../test/basic.pem"},
YAMLs: []string{"../test/bad/yaml-basic.conf"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., metric[0].GetGauge().GetValue())
})
}
func BenchmarkParsingCertificates(b *testing.B) {
tempdir := b.TempDir()
notBefore := time.Now()
n := 1000
filenames := make([]string, 0, n)
for i := 0; i < n; i++ {
filename := path.Join(tempdir, fmt.Sprintf("cert%d.pem", i))
filenames = append(filenames, filename)
generateCertificate(filename, notBefore)
}
exporter := Exporter{Files: filenames}
b.ResetTimer()
for i := 0; i < b.N; i++ {
_, errs := exporter.parseAllCertificates()
if len(errs) != 0 {
b.Fatalf("unexpected errors: %v", errs)
}
}
}
func TestBadBase64StringInYAML(t *testing.T) {
testRequest(t, &Exporter{
YAMLs: []string{"../test/bad/yaml-bad-base64.conf"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., metric[0].GetGauge().GetValue())
})
}
func TestExposeLabels(t *testing.T) {
certPath := "/tmp/test.pem"
generateCertificate(certPath, time.Now())
testRequest(t, &Exporter{
Files: []string{certPath},
ExposeLabels: []string{},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1, "missing x509_cert_expired metric(s)")
checkLabels(t, foundMetrics[0].GetLabel(), "/test.pem", false, 0)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1, "missing x509_cert_not_before metric(s)")
checkLabels(t, foundNbMetrics[0].GetLabel(), "/test.pem", false, 0)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1, "missing x509_cert_not_after metric(s)")
checkLabels(t, foundNaMetrics[0].GetLabel(), "/test.pem", false, 0)
})
testRequest(t, &Exporter{
Files: []string{certPath},
ExposeLabels: []string{"serial_number", "filename"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1, "missing x509_cert_expired metric(s)")
checkLabels(t, foundMetrics[0].GetLabel(), "/test.pem", false, 2)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1, "missing x509_cert_not_before metric(s)")
checkLabels(t, foundNbMetrics[0].GetLabel(), "/test.pem", false, 2)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1, "missing x509_cert_not_after metric(s)")
checkLabels(t, foundNaMetrics[0].GetLabel(), "/test.pem", false, 2)
})
removeGeneratedCertificate(certPath)
}
func TestFileGlobbing(t *testing.T) {
// no pattern at all
testRequest(t, &Exporter{
Files: []string{"does-not-exist/toto"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., errMetric[0].GetGauge().GetValue())
})
// no matches
testRequest(t, &Exporter{
Files: []string{"does-not-exist/**"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., errMetric[0].GetGauge().GetValue())
})
// single star match
testRequest(t, &Exporter{
Files: []string{"../tes*/basic.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// double star match
testRequest(t, &Exporter{
Files: []string{"../test/**/basic.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// combined
testRequest(t, &Exporter{
Files: []string{"../test/**/*.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 8)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 8)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 8)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 2., errMetric[0].GetGauge().GetValue())
})
// invalid pattern
testRequest(t, &Exporter{
Files: []string{"toto["},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., errMetric[0].GetGauge().GetValue())
})
}
func TestYamlGlobbing(t *testing.T) {
// single star match
testRequest(t, &Exporter{
YAMLs: []string{"../tes*/yaml-embedded.conf"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// double star match
testRequest(t, &Exporter{
YAMLs: []string{"../test/**/yaml-embedded.conf"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 2)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 2)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 2)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// combined
testRequest(t, &Exporter{
YAMLs: []string{"../test/**/*.conf"},
YAMLPaths: DefaultYamlPaths,
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 10)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 10)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 10)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 6., errMetric[0].GetGauge().GetValue())
})
}
func TestDirectoryGlobbing(t *testing.T) {
// single star match
testRequest(t, &Exporter{
Directories: []string{"../tes*"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 6)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 6)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 6)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 17., errMetric[0].GetGauge().GetValue())
})
// double star match
testRequest(t, &Exporter{
Directories: []string{"../**/foo"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// combined
testRequest(t, &Exporter{
Directories: []string{"../test/**/fo*"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 1)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 1)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 1)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 0., errMetric[0].GetGauge().GetValue())
})
// file match
testRequest(t, &Exporter{
Directories: []string{"../test/**/basic.pem"},
}, func(metrics []model.MetricFamily) {
foundMetrics := getMetricsForName(metrics, "x509_cert_expired")
assert.Len(t, foundMetrics, 0)
foundNbMetrics := getMetricsForName(metrics, "x509_cert_not_before")
assert.Len(t, foundNbMetrics, 0)
foundNaMetrics := getMetricsForName(metrics, "x509_cert_not_after")
assert.Len(t, foundNaMetrics, 0)
errMetric := getMetricsForName(metrics, "x509_read_errors")
assert.Equal(t, 1., errMetric[0].GetGauge().GetValue())
})
}
func TestListenError(t *testing.T) {
exporter := &Exporter{ListenAddress: "127.0.0.1:4242"}
err := exporter.Listen()
assert.NoError(t, err)
err = exporter.Listen()
assert.Error(t, err)
err = exporter.listener.Close()
assert.NoError(t, err)
}
func TestMultipleShutdown(t *testing.T) {
exporter := &Exporter{ListenAddress: "127.0.0.1:4242"}
err := exporter.Listen()
assert.NoError(t, err)
err = exporter.Shutdown()
assert.NoError(t, err)
err = exporter.Shutdown()
assert.NoError(t, err)
}
func testSinglePEM(t *testing.T, expired float64, notBefore time.Time) {
certPath := "/tmp/test.pem"
generateCertificate(certPath, notBefore)
testRequest(t, &Exporter{
Files: []string{certPath},
ExposeRelativeMetrics: true,
}, func(metrics []model.MetricFamily) {
metric := getMetricsForName(metrics, "x509_cert_expired")
assert.NotEmpty(t, metric, "missing x509_cert_expired metric")
value := metric[0].GetGauge().GetValue()
assert.Equal(t, expired, value, fmt.Sprintf("x509_cert_expired should be %f", expired))
checkLabels(t, metric[0].GetLabel(), certPath, false, 15)
nbMetric := getMetricsForName(metrics, "x509_cert_not_before")
assert.NotEmpty(t, nbMetric, "missing x509_cert_not_before metric")
nbValue := nbMetric[0].GetGauge().GetValue()
assert.Equal(t, float64(notBefore.Unix()), nbValue, "x509_cert_not_before has invalid value")
checkLabels(t, nbMetric[0].GetLabel(), certPath, false, 15)
naMetric := getMetricsForName(metrics, "x509_cert_not_after")
assert.NotEmpty(t, naMetric, "missing x509_cert_not_after metric")
naValue := naMetric[0].GetGauge().GetValue()
assert.Equal(t, float64(notBefore.Add(time.Hour).Unix()), naValue, "x509_cert_not_after has invalid value")
checkLabels(t, naMetric[0].GetLabel(), certPath, false, 15)
eiMetric := getMetricsForName(metrics, "x509_cert_expires_in_seconds")
assert.NotEmpty(t, eiMetric)
eiValue := eiMetric[0].GetGauge().GetValue()
checkLabels(t, eiMetric[0].GetLabel(), certPath, false, 15)
if notBefore.Add(time.Hour).After(time.Now()) {
assert.GreaterOrEqual(t, eiValue, 50*time.Minute.Seconds())
} else {
assert.LessOrEqual(t, eiValue, -time.Hour.Seconds())
}
vsMetric := getMetricsForName(metrics, "x509_cert_valid_since_seconds")
assert.NotEmpty(t, eiMetric)
vsValue := vsMetric[0].GetGauge().GetValue()
checkLabels(t, vsMetric[0].GetLabel(), certPath, false, 15)
if notBefore.Add(time.Hour).Before(time.Now()) {
assert.GreaterOrEqual(t, vsValue, 2*time.Hour.Seconds())
assert.LessOrEqual(t, vsValue, 3*time.Hour.Seconds())
} else {
assert.GreaterOrEqual(t, vsValue, 0.)
assert.LessOrEqual(t, vsValue, time.Minute.Seconds())
}
removeGeneratedCertificate(certPath)
})
}
func checkLabels(t *testing.T, labels []*model.LabelPair, path string, isKube bool, expectedCount int) {
assert.GreaterOrEqual(t, len(labels), expectedCount, "Missing labels")
pathOrNamespace := path
baseLabels := []string{"serial_number", "filepath", "filename"}
if isKube {
baseLabels = []string{"serial_number", "secret_namespace", "secret_name"}
pathOrNamespace = strings.Split(path, "/")[1]
}
for _, label := range labels {
if label.GetName() == baseLabels[2] {
assert.Equal(t, filepath.Base(path), label.GetValue(), "Invalid label value for %s", label.GetName())
} else if label.GetName() == baseLabels[1] {
assert.Equal(t, pathOrNamespace, label.GetValue(), "Invalid label value for %s", label.GetName())
} else if label.GetName() == baseLabels[0] {
assert.Equal(t, "1", label.GetValue(), "Invalid label value for %s", label.GetName())
} else if label.GetName() == "secret_key" {
assert.Contains(t, label.GetValue(), ".", "Invalid label value for %s", label.GetName())
} else {
assert.Equal(t, strings.Split(label.GetName(), "_")[1], label.GetValue(), "Invalid label value for %s", label.GetName())
}
}
}
func testRequest(t *testing.T, exporter *Exporter, cb func(metrics []model.MetricFamily)) {
exporter.ListenAddress = listenAddress
if exporter.KubeSecretTypes == nil {
exporter.KubeSecretTypes = []string{"kubernetes.io/tls:tls.crt"}
}
exporter.DiscoverCertificates()
err := exporter.Listen()
if err != nil {
registry := prometheus.NewRegistry()