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container: add start time, process count and page fault metrics (#2566)

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Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
This commit is contained in:
Jan-Otto Kröpke
2026-10-09 01:48:17 +02:00
committed by GitHub
co-authored by Claude Opus 5.5
parent 301eef493b
commit 64046fb91f
9 changed files with 241 additions and 41 deletions
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internal/headers/hcs/hcs.go
+18 -11
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@@ -27,8 +27,9 @@ import (
//nolint:gochecknoglobals
var (
ContainerQuery = utils.Must(windows.UTF16PtrFromString(`{"Types":["Container"]}`))
StatisticsQuery = utils.Must(windows.UTF16PtrFromString(`{"PropertyTypes":["Statistics"]}`))
ContainerQuery = utils.Must(windows.UTF16PtrFromString(`{"Types":["Container"]}`))
// StatisticsQuery queries the statistics and the process list in one call.
StatisticsQuery = utils.Must(windows.UTF16PtrFromString(`{"PropertyTypes":["Statistics","ProcessList"]}`))
)
func GetContainers() ([]Properties, error) {
@@ -58,40 +59,46 @@ func GetContainers() ([]Properties, error) {
return computeSystems, nil
}
func GetContainerStatistics(containerID string) (Statistics, error) {
// GetContainerStatistics returns the statistics and the process list of a container.
// The Statistics field is never nil if no error is returned.
func GetContainerStatistics(containerID string) (Properties, error) {
computeSystem, err := OpenComputeSystem(containerID)
if err != nil {
return Statistics{}, fmt.Errorf("failed to open compute system: %w", err)
return Properties{}, fmt.Errorf("failed to open compute system: %w", err)
}
defer CloseComputeSystem(computeSystem)
operation, err := CreateOperation()
if err != nil {
return Statistics{}, fmt.Errorf("failed to create operation: %w", err)
return Properties{}, fmt.Errorf("failed to create operation: %w", err)
}
defer CloseOperation(operation)
if err := GetComputeSystemProperties(computeSystem, operation, StatisticsQuery); err != nil {
return Statistics{}, fmt.Errorf("failed to enumerate compute systems: %w", err)
return Properties{}, fmt.Errorf("failed to enumerate compute systems: %w", err)
}
resultDocument, err := WaitForOperationResult(operation, 1000)
if err != nil {
return Statistics{}, fmt.Errorf("failed to get compute system properties: %w", err)
return Properties{}, fmt.Errorf("failed to get compute system properties: %w", err)
} else if resultDocument == "" {
return Statistics{}, ErrEmptyResultDocument
return Properties{}, ErrEmptyResultDocument
}
return parseStatistics(containerID, resultDocument)
}
func parseStatistics(containerID, resultDocument string) (Properties, error) {
var properties Properties
if err := json.Unmarshal([]byte(resultDocument), &properties); err != nil {
return Statistics{}, fmt.Errorf("failed to unmarshal system properties: %w", err)
return Properties{}, fmt.Errorf("failed to unmarshal system properties: %w", err)
}
if properties.Statistics == nil {
return Statistics{}, fmt.Errorf("no statistics found for container %s", containerID)
return Properties{}, fmt.Errorf("no statistics found for container %s", containerID)
}
return *properties.Statistics, nil
return properties, nil
}