refactor: unify label set implementations and rename variables for clarity and consistency across packages

This commit is contained in:
TheiLLeniumStudios
2025-12-28 08:47:56 +01:00
parent 3cf0119748
commit 3a8c300d35
4 changed files with 153 additions and 92 deletions
+141 -71
View File
@@ -25,104 +25,174 @@ var fv flagValues
// Call this before parsing flags, then call ApplyFlags after parsing.
func BindFlags(fs *pflag.FlagSet, cfg *Config) {
// Auto reload
fs.BoolVar(&cfg.AutoReloadAll, "auto-reload-all", cfg.AutoReloadAll,
"Automatically reload all resources when their configmaps/secrets are updated, without requiring annotations")
fs.BoolVar(
&cfg.AutoReloadAll, "auto-reload-all", cfg.AutoReloadAll,
"Automatically reload all resources when their configmaps/secrets are updated, without requiring annotations",
)
// Reload strategy
fs.StringVar((*string)(&cfg.ReloadStrategy), "reload-strategy", string(cfg.ReloadStrategy),
"Strategy for triggering workload restart: 'env-vars' (default, GitOps friendly) or 'annotations'")
fs.StringVar(
(*string)(&cfg.ReloadStrategy), "reload-strategy", string(cfg.ReloadStrategy),
"Strategy for triggering workload restart: 'env-vars' (default, GitOps friendly) or 'annotations'",
)
// Argo Rollouts (note: capital A in Argo for backward compatibility)
fs.StringVar(&fv.isArgoRollouts, "is-Argo-Rollouts", "false",
"Enable Argo Rollouts support (true/false)")
// Argo Rollouts
fs.StringVar(
&fv.isArgoRollouts, "is-Argo-Rollouts", "false",
"Enable Argo Rollouts support (true/false)",
)
// Event watching
fs.StringVar(&fv.reloadOnCreate, "reload-on-create", "false",
"Reload when configmaps/secrets are created (true/false)")
fs.StringVar(&fv.reloadOnDelete, "reload-on-delete", "false",
"Reload when configmaps/secrets are deleted (true/false)")
fs.StringVar(
&fv.reloadOnCreate, "reload-on-create", "false",
"Reload when configmaps/secrets are created (true/false)",
)
fs.StringVar(
&fv.reloadOnDelete, "reload-on-delete", "false",
"Reload when configmaps/secrets are deleted (true/false)",
)
// Sync after restart
fs.BoolVar(&cfg.SyncAfterRestart, "sync-after-restart", cfg.SyncAfterRestart,
"Trigger sync operation after restart")
fs.BoolVar(
&cfg.SyncAfterRestart, "sync-after-restart", cfg.SyncAfterRestart,
"Trigger sync operation after restart",
)
// High availability / Leader election
fs.BoolVar(&cfg.EnableHA, "enable-ha", cfg.EnableHA,
"Enable high-availability mode with leader election")
fs.StringVar(&cfg.LeaderElection.LockName, "leader-election-id", cfg.LeaderElection.LockName,
"Name of the lease resource for leader election")
fs.StringVar(&cfg.LeaderElection.Namespace, "leader-election-namespace", cfg.LeaderElection.Namespace,
"Namespace for the leader election lease (defaults to pod namespace)")
fs.DurationVar(&cfg.LeaderElection.LeaseDuration, "leader-election-lease-duration", cfg.LeaderElection.LeaseDuration,
"Duration that non-leader candidates will wait before attempting to acquire leadership")
fs.DurationVar(&cfg.LeaderElection.RenewDeadline, "leader-election-renew-deadline", cfg.LeaderElection.RenewDeadline,
"Duration that the acting leader will retry refreshing leadership before giving up")
fs.DurationVar(&cfg.LeaderElection.RetryPeriod, "leader-election-retry-period", cfg.LeaderElection.RetryPeriod,
"Duration between leader election retries")
fs.BoolVar(&cfg.LeaderElection.ReleaseOnCancel, "leader-election-release-on-cancel", cfg.LeaderElection.ReleaseOnCancel,
"Release the leader lock when the manager is stopped")
fs.BoolVar(
&cfg.EnableHA, "enable-ha", cfg.EnableHA,
"Enable high-availability mode with leader election",
)
fs.StringVar(
&cfg.LeaderElection.LockName, "leader-election-id", cfg.LeaderElection.LockName,
"Name of the lease resource for leader election",
)
fs.StringVar(
&cfg.LeaderElection.Namespace, "leader-election-namespace", cfg.LeaderElection.Namespace,
"Namespace for the leader election lease (defaults to pod namespace)",
)
fs.DurationVar(
&cfg.LeaderElection.LeaseDuration, "leader-election-lease-duration", cfg.LeaderElection.LeaseDuration,
"Duration that non-leader candidates will wait before attempting to acquire leadership",
)
fs.DurationVar(
&cfg.LeaderElection.RenewDeadline, "leader-election-renew-deadline", cfg.LeaderElection.RenewDeadline,
"Duration that the acting leader will retry refreshing leadership before giving up",
)
fs.DurationVar(
&cfg.LeaderElection.RetryPeriod, "leader-election-retry-period", cfg.LeaderElection.RetryPeriod,
"Duration between leader election retries",
)
fs.BoolVar(
&cfg.LeaderElection.ReleaseOnCancel, "leader-election-release-on-cancel", cfg.LeaderElection.ReleaseOnCancel,
"Release the leader lock when the manager is stopped",
)
// Webhook
fs.StringVar(&cfg.WebhookURL, "webhook-url", cfg.WebhookURL,
"URL to send notification instead of triggering reload")
fs.StringVar(
&cfg.WebhookURL, "webhook-url", cfg.WebhookURL,
"URL to send notification instead of triggering reload",
)
// Filtering - resources (use StringVar not StringSliceVar for simpler parsing)
fs.StringVar(&fv.ignoredResources, "resources-to-ignore", "",
"Comma-separated list of resources to ignore (valid options: 'configMaps' or 'secrets')")
fs.StringVar(&fv.ignoredWorkloads, "ignored-workload-types", "",
"Comma-separated list of workload types to ignore (valid options: 'jobs', 'cronjobs', or both)")
fs.StringVar(&fv.ignoredNamespaces, "namespaces-to-ignore", "",
"Comma-separated list of namespaces to ignore")
fs.StringVar(
&fv.ignoredResources, "resources-to-ignore", "",
"Comma-separated list of resources to ignore (valid options: 'configMaps' or 'secrets')",
)
fs.StringVar(
&fv.ignoredWorkloads, "ignored-workload-types", "",
"Comma-separated list of workload types to ignore (valid options: 'jobs', 'cronjobs', or both)",
)
fs.StringVar(
&fv.ignoredNamespaces, "namespaces-to-ignore", "",
"Comma-separated list of namespaces to ignore",
)
// Filtering - selectors
fs.StringVar(&fv.namespaceSelectors, "namespace-selector", "",
"Comma-separated list of namespace label selectors")
fs.StringVar(&fv.resourceSelectors, "resource-label-selector", "",
"Comma-separated list of resource label selectors")
fs.StringVar(
&fv.namespaceSelectors, "namespace-selector", "",
"Comma-separated list of namespace label selectors",
)
fs.StringVar(
&fv.resourceSelectors, "resource-label-selector", "",
"Comma-separated list of resource label selectors",
)
// Logging
fs.StringVar(&cfg.LogFormat, "log-format", cfg.LogFormat,
"Log format: 'json' or empty for default")
fs.StringVar(&cfg.LogLevel, "log-level", cfg.LogLevel,
"Log level: trace, debug, info, warning, error, fatal, panic")
fs.StringVar(
&cfg.LogFormat, "log-format", cfg.LogFormat,
"Log format: 'json' or empty for default",
)
fs.StringVar(
&cfg.LogLevel, "log-level", cfg.LogLevel,
"Log level: trace, debug, info, warning, error, fatal, panic",
)
// Metrics
fs.StringVar(&cfg.MetricsAddr, "metrics-addr", cfg.MetricsAddr,
"Address to serve metrics on")
fs.StringVar(
&cfg.MetricsAddr, "metrics-addr", cfg.MetricsAddr,
"Address to serve metrics on",
)
// Health probes
fs.StringVar(&cfg.HealthAddr, "health-addr", cfg.HealthAddr,
"Address to serve health probes on")
fs.StringVar(
&cfg.HealthAddr, "health-addr", cfg.HealthAddr,
"Address to serve health probes on",
)
// Profiling
fs.BoolVar(&cfg.EnablePProf, "enable-pprof", cfg.EnablePProf,
"Enable pprof profiling server")
fs.StringVar(&cfg.PProfAddr, "pprof-addr", cfg.PProfAddr,
"Address for pprof server")
fs.BoolVar(
&cfg.EnablePProf, "enable-pprof", cfg.EnablePProf,
"Enable pprof profiling server",
)
fs.StringVar(
&cfg.PProfAddr, "pprof-addr", cfg.PProfAddr,
"Address for pprof server",
)
// Annotation customization (flag names match v1 for backward compatibility)
fs.StringVar(&cfg.Annotations.Auto, "auto-annotation", cfg.Annotations.Auto,
"Annotation to detect changes in secrets/configmaps")
fs.StringVar(&cfg.Annotations.ConfigmapAuto, "configmap-auto-annotation", cfg.Annotations.ConfigmapAuto,
"Annotation to detect changes in configmaps")
fs.StringVar(&cfg.Annotations.SecretAuto, "secret-auto-annotation", cfg.Annotations.SecretAuto,
"Annotation to detect changes in secrets")
fs.StringVar(&cfg.Annotations.ConfigmapReload, "configmap-annotation", cfg.Annotations.ConfigmapReload,
"Annotation to detect changes in configmaps, specified by name")
fs.StringVar(&cfg.Annotations.SecretReload, "secret-annotation", cfg.Annotations.SecretReload,
"Annotation to detect changes in secrets, specified by name")
fs.StringVar(&cfg.Annotations.Search, "auto-search-annotation", cfg.Annotations.Search,
"Annotation to detect changes in configmaps or secrets tagged with special match annotation")
fs.StringVar(&cfg.Annotations.Match, "search-match-annotation", cfg.Annotations.Match,
"Annotation to mark secrets or configmaps to match the search")
fs.StringVar(&cfg.Annotations.PausePeriod, "pause-deployment-annotation", cfg.Annotations.PausePeriod,
"Annotation to define the time period to pause a deployment after a configmap/secret change")
fs.StringVar(&cfg.Annotations.PausedAt, "pause-deployment-time-annotation", cfg.Annotations.PausedAt,
"Annotation to indicate when a deployment was paused by Reloader")
fs.StringVar(
&cfg.Annotations.Auto, "auto-annotation", cfg.Annotations.Auto,
"Annotation to detect changes in secrets/configmaps",
)
fs.StringVar(
&cfg.Annotations.ConfigmapAuto, "configmap-auto-annotation", cfg.Annotations.ConfigmapAuto,
"Annotation to detect changes in configmaps",
)
fs.StringVar(
&cfg.Annotations.SecretAuto, "secret-auto-annotation", cfg.Annotations.SecretAuto,
"Annotation to detect changes in secrets",
)
fs.StringVar(
&cfg.Annotations.ConfigmapReload, "configmap-annotation", cfg.Annotations.ConfigmapReload,
"Annotation to detect changes in configmaps, specified by name",
)
fs.StringVar(
&cfg.Annotations.SecretReload, "secret-annotation", cfg.Annotations.SecretReload,
"Annotation to detect changes in secrets, specified by name",
)
fs.StringVar(
&cfg.Annotations.Search, "auto-search-annotation", cfg.Annotations.Search,
"Annotation to detect changes in configmaps or secrets tagged with special match annotation",
)
fs.StringVar(
&cfg.Annotations.Match, "search-match-annotation", cfg.Annotations.Match,
"Annotation to mark secrets or configmaps to match the search",
)
fs.StringVar(
&cfg.Annotations.PausePeriod, "pause-deployment-annotation", cfg.Annotations.PausePeriod,
"Annotation to define the time period to pause a deployment after a configmap/secret change",
)
fs.StringVar(
&cfg.Annotations.PausedAt, "pause-deployment-time-annotation", cfg.Annotations.PausedAt,
"Annotation to indicate when a deployment was paused by Reloader",
)
// Watched namespace (for single-namespace mode)
fs.StringVar(&cfg.WatchedNamespace, "watch-namespace", cfg.WatchedNamespace,
"Namespace to watch (empty for all namespaces)")
fs.StringVar(
&cfg.WatchedNamespace, "watch-namespace", cfg.WatchedNamespace,
"Namespace to watch (empty for all namespaces)",
)
}
// ApplyFlags applies flag values that need post-processing.
@@ -6,6 +6,7 @@ import (
"github.com/go-logr/logr"
"github.com/stakater/Reloader/internal/pkg/config"
"github.com/stakater/Reloader/internal/pkg/reload"
corev1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/api/errors"
ctrl "sigs.k8s.io/controller-runtime"
@@ -124,7 +125,7 @@ func (r *NamespaceReconciler) matchesSelectors(ns *corev1.Namespace) bool {
}
for _, selector := range r.Config.NamespaceSelectors {
if selector.Matches(nsLabelsSet(nsLabels)) {
if selector.Matches(reload.LabelsSet(nsLabels)) {
return true
}
}
@@ -132,18 +133,6 @@ func (r *NamespaceReconciler) matchesSelectors(ns *corev1.Namespace) bool {
return false
}
// nsLabelsSet implements labels.Labels interface for a map.
type nsLabelsSet map[string]string
func (ls nsLabelsSet) Has(key string) bool {
_, ok := ls[key]
return ok
}
func (ls nsLabelsSet) Get(key string) string {
return ls[key]
}
// SetupWithManager sets up the controller with the Manager.
func (r *NamespaceReconciler) SetupWithManager(mgr ctrl.Manager) error {
return ctrl.NewControllerManagedBy(mgr).
+2 -3
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@@ -48,11 +48,10 @@ func NewCollectors() Collectors {
},
)
//set 0 as default value
reloaded.With(prometheus.Labels{"success": "true"}).Add(0)
reloaded.With(prometheus.Labels{"success": "false"}).Add(0)
reloaded_by_namespace := prometheus.NewCounterVec(
reloadedByNamespace := prometheus.NewCounterVec(
prometheus.CounterOpts{
Namespace: "reloader",
Name: "reload_executed_total_by_namespace",
@@ -65,7 +64,7 @@ func NewCollectors() Collectors {
)
return Collectors{
Reloaded: reloaded,
ReloadedByNamespace: reloaded_by_namespace,
ReloadedByNamespace: reloadedByNamespace,
countByNamespace: os.Getenv("METRICS_COUNT_BY_NAMESPACE") == "enabled",
}
}
+8 -5
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@@ -102,7 +102,7 @@ func LabelSelectorPredicate(cfg *config.Config) predicate.Predicate {
// Check if any selector matches
for _, selector := range cfg.ResourceSelectors {
if selector.Matches(labelsSet(labels)) {
if selector.Matches(LabelsSet(labels)) {
return true
}
}
@@ -111,15 +111,18 @@ func LabelSelectorPredicate(cfg *config.Config) predicate.Predicate {
})
}
// labelsSet implements labels.Labels interface for a map.
type labelsSet map[string]string
// LabelsSet implements the k8s.io/apimachinery/pkg/labels.Labels interface
// for a map[string]string. This allows using label maps with label selectors.
type LabelsSet map[string]string
func (ls labelsSet) Has(key string) bool {
// Has returns whether the provided label key exists in the set.
func (ls LabelsSet) Has(key string) bool {
_, ok := ls[key]
return ok
}
func (ls labelsSet) Get(key string) string {
// Get returns the value for the provided label key.
func (ls LabelsSet) Get(key string) string {
return ls[key]
}