projects/gomonop
1
0
Fork 1
Code Issues 3 Pull requests Projects Releases 1 Activity Actions

feat: add the check_output_matches plugin #5

Merged
Emmanuel BENOîT merged 16 commits from tseeker/gomonop:20240720-line-matches into master 2024-07-20 22:57:10 +02:00
Conversation 0 Commits 16 Files changed 22 +51 -44
7 changed files with 51 additions and 44 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files
Showing only changes of commit 3263d8c583 - Show all commits

29
cmd/sslcert/main.go
View file

@ -17,6 +17,7 @@ import (
"nocternity.net/gomonop/pkg/perfdata"
"nocternity.net/gomonop/pkg/plugin"
"nocternity.net/gomonop/pkg/results"
"nocternity.net/gomonop/pkg/status"
)
//--------------------------------------------------------------------------------------------------------
@ -224,20 +225,20 @@ func (program *checkProgram) Results() *results.Results {
// if the arguments made sense.
func (program *checkProgram) CheckArguments() bool {
if program.hostname == "" {
program.plugin.SetState(results.StatusUnknown, "no hostname specified")
program.plugin.SetState(status.StatusUnknown, "no hostname specified")
return false
}
if program.port < 1 || program.port > 65535 {
program.plugin.SetState(results.StatusUnknown, "invalid or missing port number")
program.plugin.SetState(status.StatusUnknown, "invalid or missing port number")
return false
}
if program.warn != -1 && program.crit != -1 && program.warn <= program.crit {
program.plugin.SetState(results.StatusUnknown, "nonsensical thresholds")
program.plugin.SetState(status.StatusUnknown, "nonsensical thresholds")
return false
}
if _, ok := certGetters[program.startTLS]; !ok {
errstr := "unsupported StartTLS protocol " + program.startTLS
program.plugin.SetState(results.StatusUnknown, errstr)
program.plugin.SetState(status.StatusUnknown, errstr)
return false
}
program.hostname = strings.ToLower(program.hostname)
@ -262,13 +263,13 @@ func (program *checkProgram) getCertificate() error {
// matches the requested host name.
func (program *checkProgram) checkSANlessCertificate() bool {
if !program.ignoreCnOnly || len(program.extraNames) != 0 {
program.plugin.SetState(results.StatusWarning,
program.plugin.SetState(status.StatusWarning,
"certificate doesn't have SAN domain names")
return false
}
dn := strings.ToLower(program.certificate.Subject.String())
if !strings.HasPrefix(dn, fmt.Sprintf("cn=%s,", program.hostname)) {
program.plugin.SetState(results.StatusCritical, "incorrect certificate CN")
program.plugin.SetState(status.StatusCritical, "incorrect certificate CN")
return false
}
return true
@ -298,7 +299,7 @@ func (program *checkProgram) checkNames() bool {
certificateIsOk = program.checkHostName(name) && certificateIsOk
}
if !certificateIsOk {
program.plugin.SetState(results.StatusCritical, "names missing from SAN domain names")
program.plugin.SetState(status.StatusCritical, "names missing from SAN domain names")
}
return certificateIsOk
}
@ -306,26 +307,26 @@ func (program *checkProgram) checkNames() bool {
// Check a certificate's time to expiry against the warning and critical
// thresholds, returning a status code and description based on these
// values.
func (program *checkProgram) checkCertificateExpiry(tlDays int) (results.Status, string) {
func (program *checkProgram) checkCertificateExpiry(tlDays int) (status.Status, string) {
if tlDays <= 0 {
return results.StatusCritical, "certificate expired"
return status.StatusCritical, "certificate expired"
}
var limitStr string
var state results.Status
var state status.Status
switch {
case program.crit > 0 && tlDays <= program.crit:
limitStr = fmt.Sprintf(" (<= %d)", program.crit)
state = results.StatusCritical
state = status.StatusCritical
case program.warn > 0 && tlDays <= program.warn:
limitStr = fmt.Sprintf(" (<= %d)", program.warn)
state = results.StatusWarning
state = status.StatusWarning
default:
limitStr = ""
state = results.StatusOK
state = status.StatusOK
}
statusString := fmt.Sprintf("certificate will expire in %d days%s",
@ -351,7 +352,7 @@ func (program *checkProgram) setPerfData(tlDays int) {
func (program *checkProgram) RunCheck() {
err := program.getCertificate()
if err != nil {
program.plugin.SetState(results.StatusUnknown, err.Error())
program.plugin.SetState(status.StatusUnknown, err.Error())
} else if program.checkNames() {
timeLeft := time.Until(program.certificate.NotAfter)
tlDays := int((timeLeft + 86399*time.Second) / (24 * time.Hour))

17
cmd/zoneserial/main.go
View file

@ -15,6 +15,7 @@ import (
"nocternity.net/gomonop/pkg/perfdata"
"nocternity.net/gomonop/pkg/plugin"
"nocternity.net/gomonop/pkg/results"
"nocternity.net/gomonop/pkg/status"
)
//-------------------------------------------------------------------------------------------------------
@ -93,23 +94,23 @@ func (program *checkProgram) Results() *results.Results {
// Check the values that were specified from the command line. Returns true if the arguments made sense.
func (program *checkProgram) CheckArguments() bool {
if program.hostname == "" {
program.plugin.SetState(results.StatusUnknown, "no DNS hostname specified")
program.plugin.SetState(status.StatusUnknown, "no DNS hostname specified")
return false
}
if program.port < 1 || program.port > 65535 {
program.plugin.SetState(results.StatusUnknown, "invalid DNS port number")
program.plugin.SetState(status.StatusUnknown, "invalid DNS port number")
return false
}
if program.zone == "" {
program.plugin.SetState(results.StatusUnknown, "no DNS zone specified")
program.plugin.SetState(status.StatusUnknown, "no DNS zone specified")
return false
}
if program.rsHostname == "" {
program.plugin.SetState(results.StatusUnknown, "no reference DNS hostname specified")
program.plugin.SetState(status.StatusUnknown, "no reference DNS hostname specified")
return false
}
if program.rsPort < 1 || program.rsPort > 65535 {
program.plugin.SetState(results.StatusUnknown, "invalid reference DNS port number")
program.plugin.SetState(status.StatusUnknown, "invalid reference DNS port number")
return false
}
program.hostname = strings.ToLower(program.hostname)
@ -176,12 +177,12 @@ func (program *checkProgram) RunCheck() {
cOk, cSerial := program.getSerial("checked", checkResponse)
rOk, rSerial := program.getSerial("reference", refResponse)
if !(cOk && rOk) {
program.plugin.SetState(results.StatusUnknown, "could not read serials")
program.plugin.SetState(status.StatusUnknown, "could not read serials")
return
}
if cSerial == rSerial {
program.plugin.SetState(results.StatusOK, "serials match")
program.plugin.SetState(status.StatusOK, "serials match")
} else {
program.plugin.SetState(results.StatusCritical, "serials mismatch")
program.plugin.SetState(status.StatusCritical, "serials mismatch")
}
}

4
main.go
View file

@ -8,7 +8,7 @@ import (
"nocternity.net/gomonop/cmd/sslcert"
"nocternity.net/gomonop/cmd/zoneserial"
"nocternity.net/gomonop/pkg/plugin"
"nocternity.net/gomonop/pkg/results"
"nocternity.net/gomonop/pkg/status"
"nocternity.net/gomonop/pkg/version"
)
@ -61,7 +61,7 @@ func main() {
output := runPlugin.Results()
defer func() {
if r := recover(); r != nil {
output.SetState(results.StatusUnknown, "Internal error")
output.SetState(status.StatusUnknown, "Internal error")
output.AddLinef("Error info: %v", r)
}
fmt.Println(output.String())

7
pkg/results/results.go
View file

@ -9,6 +9,7 @@ import (
"strings"
"nocternity.net/gomonop/pkg/perfdata"
"nocternity.net/gomonop/pkg/status"
)
// Results represents the monitoring plugin's results, including its name,
@ -16,7 +17,7 @@ import (
// data to be encoded in the output.
type Results struct {
name string
status Status
status status.Status
message string
extraText *list.List
perfData map[string]*perfdata.PerfData
@ -26,7 +27,7 @@ type Results struct {
func New(name string) *Results {
p := new(Results)
p.name = name
p.status = StatusUnknown
p.status = status.StatusUnknown
p.message = "no status set"
p.perfData = make(map[string]*perfdata.PerfData)
return p
@ -34,7 +35,7 @@ func New(name string) *Results {
// SetState sets the plugin's output code to `status` and its message to
// the specified `message`.
func (p *Results) SetState(status Status, message string) {
func (p *Results) SetState(status status.Status, message string) {
p.status = status
p.message = message
}

32
pkg/results/results_test.go
View file

@ -5,14 +5,16 @@ import (
"testing"
"github.com/stretchr/testify/assert"
"nocternity.net/gomonop/pkg/perfdata"
"nocternity.net/gomonop/pkg/status"
)
func TestNew(t *testing.T) {
p := New("test")
assert.Equal(t, p.name, "test")
assert.Equal(t, p.status, StatusUnknown)
assert.Equal(t, p.status, status.StatusUnknown)
assert.Equal(t, p.message, "no status set")
assert.Nil(t, p.extraText)
assert.NotNil(t, p.perfData)
@ -21,9 +23,9 @@ func TestNew(t *testing.T) {
func TestSetState(t *testing.T) {
p := Results{}
p.SetState(StatusWarning, "test")
p.SetState(status.StatusWarning, "test")
assert.Equal(t, p.status, StatusWarning)
assert.Equal(t, p.status, status.StatusWarning)
assert.Equal(t, p.message, "test")
}
@ -96,7 +98,7 @@ func TestString(t *testing.T) {
{
Results{
name: "test",
status: StatusWarning,
status: status.StatusWarning,
message: "test",
perfData: make(map[string]*perfdata.PerfData),
},
@ -106,7 +108,7 @@ func TestString(t *testing.T) {
func() Results {
p := Results{
name: "test",
status: StatusWarning,
status: status.StatusWarning,
message: "test",
perfData: make(map[string]*perfdata.PerfData),
extraText: list.New(),
@ -121,7 +123,7 @@ func TestString(t *testing.T) {
func() Results {
p := Results{
name: "test",
status: StatusWarning,
status: status.StatusWarning,
message: "test",
perfData: make(map[string]*perfdata.PerfData),
}
@ -136,7 +138,7 @@ func TestString(t *testing.T) {
func() Results {
p := Results{
name: "test",
status: StatusWarning,
status: status.StatusWarning,
message: "test",
perfData: make(map[string]*perfdata.PerfData),
extraText: list.New(),
@ -161,15 +163,15 @@ func TestString(t *testing.T) {
func TestExitCode(t *testing.T) {
p := Results{}
p.status = StatusOK
assert.Equal(t, int(StatusOK), p.ExitCode())
p.status = status.StatusOK
assert.Equal(t, int(status.StatusOK), p.ExitCode())
p.status = StatusWarning
assert.Equal(t, int(StatusWarning), p.ExitCode())
p.status = status.StatusWarning
assert.Equal(t, int(status.StatusWarning), p.ExitCode())
p.status = StatusCritical
assert.Equal(t, int(StatusCritical), p.ExitCode())
p.status = status.StatusCritical
assert.Equal(t, int(status.StatusCritical), p.ExitCode())
p.status = StatusUnknown
assert.Equal(t, int(StatusUnknown), p.ExitCode())
p.status = status.StatusUnknown
assert.Equal(t, int(status.StatusUnknown), p.ExitCode())
}

4
pkg/results/status.go → pkg/status/status.go
View file

@ -1,4 +1,6 @@
package results // import nocternity.net/gomonop/pkg/results
// The status package contains the datatype that corresponds to monitoring
// plugin status values.
package status // import nocternity.net/gomonop/pkg/status
// Status represents the return status of the monitoring plugin. The
// corresponding integer value will be used as the program's exit code,

2
pkg/results/status_test.go → pkg/status/status_test.go
View file

@ -1,4 +1,4 @@
package results // import nocternity.net/gomonop/pkg/results
package status // import nocternity.net/gomonop/pkg/status
import (
"testing"