Segment out disk checks to disable on openbsd/arm (#11749)

* Segment out disk checks to disable on openbsd/arm

Also add a spot skipped helper.

* Expected results may be fewer than actual because of variable length tests like disk usage

* Move to os_common and build on windows

command/operator_diagnose.go

@@ -211,9 +211,7 @@ func (c *OperatorDiagnoseCommand) offlineDiagnostics(ctx context.Context) error
 	defer span.End()
 
 	// OS Specific checks
-	// Check open file count
 	diagnose.OSChecks(ctx)
-	diagnose.Test(ctx, "disk-usage", diagnose.DiskUsageCheck)
 
 	server.flagConfigs = c.flagConfigs
 	config, err := server.parseConfig()

command/operator_diagnose_test.go

@@ -40,9 +40,20 @@ func TestOperatorDiagnoseCommand_Run(t *testing.T) {
 			},
 			[]*diagnose.Result{
 				{
-					Name:   "open file limits",
+					Name:   "operating system",
 					Status: diagnose.OkStatus,
+					Children: []*diagnose.Result{
+						{
+							Name:   "open file limits",
+							Status: diagnose.OkStatus,
+						},
+						{
+							Name:   "disk usage",
+							Status: diagnose.OkStatus,
+						},
+					},
 				},
+
 				{
 					Name:   "parse-config",
 					Status: diagnose.OkStatus,
@@ -331,7 +342,7 @@ func compareResult(exp *diagnose.Result, act *diagnose.Result) error {
 			return fmt.Errorf("section %s, warning message not found: %s in %s", exp.Name, exp.Warnings[j], act.Warnings[j])
 		}
 	}
-	if len(exp.Children) != len(act.Children) {
+	if len(exp.Children) > len(act.Children) {
 		errStrings := []string{}
 		for _, c := range act.Children {
 			errStrings = append(errStrings, fmt.Sprintf("%+v", c))

vault/diagnose/helpers.go

@@ -4,10 +4,8 @@ import (
 	"context"
 	"fmt"
 	"io"
-	"strings"
 	"time"
 
-	"github.com/shirou/gopsutil/disk"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
 	sdktrace "go.opentelemetry.io/otel/sdk/trace"
@@ -15,15 +13,16 @@ import (
 )
 
 const (
-	warningEventName        = "warning"
-	skippedEventName        = "skipped"
-	actionKey               = "actionKey"
-	spotCheckOkEventName    = "spot-check-ok"
-	spotCheckWarnEventName  = "spot-check-warn"
-	spotCheckErrorEventName = "spot-check-error"
-	errorMessageKey         = attribute.Key("error.message")
-	nameKey                 = attribute.Key("name")
-	messageKey              = attribute.Key("message")
+	warningEventName          = "warning"
+	skippedEventName          = "skipped"
+	actionKey                 = "actionKey"
+	spotCheckOkEventName      = "spot-check-ok"
+	spotCheckWarnEventName    = "spot-check-warn"
+	spotCheckErrorEventName   = "spot-check-error"
+	spotCheckSkippedEventName = "spot-check-skipped"
+	errorMessageKey           = attribute.Key("error.message")
+	nameKey                   = attribute.Key("name")
+	messageKey                = attribute.Key("message")
 )
 
 var (
@@ -162,6 +161,11 @@ func SpotError(ctx context.Context, checkName string, err error, options ...trac
 	return err
 }
 
+// SpotSkipped adds a Skipped result without adding a new Span.
+func SpotSkipped(ctx context.Context, checkName, message string, options ...trace.EventOption) {
+	addSpotCheckResult(ctx, spotCheckSkippedEventName, checkName, message, options...)
+}
+
 func addSpotCheckResult(ctx context.Context, eventName, checkName, message string, options ...trace.EventOption) {
 	span := trace.SpanFromContext(ctx)
 	attrs := append(options, trace.WithAttributes(nameKey.String(checkName)))
@@ -229,35 +233,3 @@ func Skippable(skipName string, f testFunction) testFunction {
 		return nil
 	}
 }
-
-func DiskUsageCheck(ctx context.Context) error {
-	partitions, err := disk.Partitions(false)
-	if err != nil {
-		return err
-	}
-
-	partitionExcludes := []string{"/boot"}
-partLoop:
-	for _, partition := range partitions {
-		for _, exc := range partitionExcludes {
-			if strings.HasPrefix(partition.Mountpoint, exc) {
-				continue partLoop
-			}
-		}
-		usage, err := disk.Usage(partition.Mountpoint)
-		testName := "disk-usage: " + partition.Mountpoint
-		if err != nil {
-			Warn(ctx, fmt.Sprintf("could not obtain partition usage for %s: %v", partition.Mountpoint, err))
-		} else {
-			if usage.UsedPercent > 95 {
-				SpotWarn(ctx, testName, "more than 95% full")
-			} else if usage.Free < 2<<30 {
-				SpotWarn(ctx, testName, "less than 1GB free")
-			} else {
-				SpotOk(ctx, testName, "ok")
-			}
-		}
-
-	}
-	return nil
-}

vault/diagnose/os_common.go

@@ -0,0 +1,44 @@
+// +build !openbsd,!arm
+
+package diagnose
+
+import (
+	"context"
+	"fmt"
+	"strings"
+
+	"github.com/shirou/gopsutil/disk"
+)
+
+func diskUsage(ctx context.Context) error {
+	// Disk usage
+	partitions, err := disk.Partitions(false)
+	if err != nil {
+		return err
+	}
+
+	partitionExcludes := []string{"/boot"}
+partLoop:
+	for _, partition := range partitions {
+		for _, exc := range partitionExcludes {
+			if strings.HasPrefix(partition.Mountpoint, exc) {
+				continue partLoop
+			}
+		}
+		usage, err := disk.Usage(partition.Mountpoint)
+		testName := "disk usage"
+		if err != nil {
+			Warn(ctx, fmt.Sprintf("could not obtain partition usage for %s: %v", partition.Mountpoint, err))
+		} else {
+			if usage.UsedPercent > 95 {
+				SpotWarn(ctx, testName, partition.Mountpoint+" more than 95% full")
+			} else if usage.Free < 2<<30 {
+				SpotWarn(ctx, testName, partition.Mountpoint+" less than 1GB free")
+			} else {
+				SpotOk(ctx, testName, partition.Mountpoint+" ok")
+			}
+		}
+
+	}
+	return nil
+}

vault/diagnose/os_openbsd_arm.go

@@ -0,0 +1,7 @@
+// +build openbsd,arm
+
+package diagnose
+
+func diskUsage(ctx context.Context) error {
+	SpotSkipped("disk usage", "unsupported on this platform")
+}

vault/diagnose/os_unix.go

@@ -9,6 +9,9 @@ import (
 )
 
 func OSChecks(ctx context.Context) {
+	ctx, span := StartSpan(ctx, "operating system")
+	defer span.End()
+
 	var limit unix.Rlimit
 	if err := unix.Getrlimit(unix.RLIMIT_NOFILE, &limit); err != nil {
 		SpotError(ctx, "open file limits", fmt.Errorf("could not determine open file limit: %w", err))
@@ -23,4 +26,6 @@ func OSChecks(ctx context.Context) {
 			SpotOk(ctx, "open file limits", fmt.Sprintf("set to %d", min))
 		}
 	}
+
+	diskUsage(ctx)
 }

vault/diagnose/os_windows.go

@@ -7,5 +7,7 @@ import (
 )
 
 func OSChecks(ctx context.Context) {
-	// None so far
+	ctx, span := StartSpan(ctx, "operating system")
+	defer span.End()
+	diskUsage(ctx)
 }

vault/diagnose/output.go

@@ -266,7 +266,28 @@ func (t *TelemetryCollector) getOrBuildResult(id trace.SpanID) *Result {
 							Time:    e.Time,
 						})
 				}
+			case spotCheckSkippedEventName:
+				var checkName string
+				var message string
+				for _, a := range e.Attributes {
+					switch a.Key {
+					case nameKey:
+						checkName = a.Value.AsString()
+					case messageKey:
+						message = a.Value.AsString()
+					}
+				}
+				if checkName != "" {
+					r.Children = append(r.Children,
+						&Result{
+							Name:    checkName,
+							Status:  SkippedStatus,
+							Message: message,
+							Time:    e.Time,
+						})
+				}
 			}
+
 		}
 		switch s.StatusCode() {
 		case codes.Unset: