Documentation
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Overview ¶
Package mainhelper provides helper functions for common boilerplate code in writing a main function such as setting up kube informers.
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func ProcessEnvConfigOrDie ¶
func ProcessEnvConfigOrDie(env interface{})
ProcessEnvConfigOrDie retrieves environment variables.
func ProcessGCPProfilerEnvConfigOrDie ¶
func ProcessGCPProfilerEnvConfigOrDie(component string, logger *zap.SugaredLogger)
ProcessGCPProfilerEnvConfigOrDie tries to enable the GCP Profiler if env vars have configured it.
func RunProfilingServer ¶
func RunProfilingServer(ctx context.Context, logger *zap.SugaredLogger, h *pkgprofiling.Handler)
RunProfilingServer starts a profiling server.
Types ¶
type InitOption ¶
type InitOption func(*initArgs)
var WithKubeFakes InitOption = func(args *initArgs) { args.injection = injection.Fake args.kubeConfig = &rest.Config{} args.skipK8sVersionCheck = true }
WithKubeFakes uses knative injections fakes for any k8s related setup. This is used in tests.
func WithContext ¶
func WithContext(ctx context.Context) InitOption
WithContext specifies the context to use.
func WithEnv ¶
func WithEnv(env interface{}) InitOption
WithEnv specifies a pointer to an envConfig struct.
func WithMetricNamespace ¶
func WithMetricNamespace(metricNamespace string) InitOption
WithMetricNamespace specifies the metric namespace to use.
type InitRes ¶
type InitRes struct {
Logger *zap.SugaredLogger
KubeClient kubernetes.Interface
CMPWatcher configmap.Watcher
Cleanup func()
}
InitRes holds a collection of objects after init for convenient access by other custom logic in the main function.
func Init ¶
func Init(component string, opts ...InitOption) (context.Context, *InitRes)
Init runs common logic in starting a main function, similar to sharedmain. it returns a result object that contains useful artifacts for later use. Unlike sharedmain.Main, Init is meant to be run as a helper function in any main functions, while sharedmain.Main runs controllers with predefined method signatures.
When a command is converted to use this function, please update the list of commands that support profiling in docs/development/profiling.md.
Source Files