frontend: configSlice: Add configurable event severity filter

Add a configuration option to set the default state of the events
warning filter. Configurable via Helm chart value
'config.events.warningsOnly' or backend flag '-filters-warnings-only'.
The frontend reads this value as the default if the user has not set
a preference.

Signed-off-by: zyzzmohit <mohitray949@gmail.com>

Author: zyzzmohit

backend/cmd/headlamp.go

@@ -97,6 +97,7 @@ const (
 type clientConfig struct {
 	Clusters                []Cluster `json:"clusters"`
 	IsDynamicClusterEnabled bool      `json:"isDynamicClusterEnabled"`
+	FiltersWarningsOnly     bool      `json:"filtersWarningsOnly"`
 }
 
 type OauthConfig struct {
@@ -1750,7 +1751,11 @@ func parseClusterFromKubeConfig(kubeConfigs []string) ([]Cluster, []error) {
 func (c *HeadlampConfig) getConfig(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "application/json")
 
-	clientConfig := clientConfig{c.getClusters(), c.EnableDynamicClusters}
+	clientConfig := clientConfig{
+		Clusters:                c.getClusters(),
+		IsDynamicClusterEnabled: c.EnableDynamicClusters,
+		FiltersWarningsOnly:     c.FiltersWarningsOnly,
+	}
 
 	if err := json.NewEncoder(w).Encode(&clientConfig); err != nil {
 		logger.Log(logger.LevelError, nil, err, "encoding config")

backend/cmd/stateless.go

@@ -178,7 +178,11 @@ func (c *HeadlampConfig) parseKubeConfig(w http.ResponseWriter, r *http.Request)
 		return
 	}
 
-	clientConfig := clientConfig{contexts, c.EnableDynamicClusters}
+	clientConfig := clientConfig{
+		Clusters:                contexts,
+		IsDynamicClusterEnabled: c.EnableDynamicClusters,
+		FiltersWarningsOnly:     c.FiltersWarningsOnly,
+	}
 
 	if err := json.NewEncoder(w).Encode(&clientConfig); err != nil {
 		logger.Log(logger.LevelError, nil, err, "encoding config")

backend/pkg/config/config.go

@@ -82,6 +82,8 @@ type Config struct {
 	UseOTLPHTTP        *bool    `koanf:"use-otlp-http"`
 	StdoutTraceEnabled *bool    `koanf:"stdout-trace-enabled"`
 	SamplingRate       *float64 `koanf:"sampling-rate"`
+	// FiltersWarningsOnly is the default state of the events filter (true = only warnings, false = all events).
+	FiltersWarningsOnly bool `koanf:"filters-warnings-only"`
 	// TLS config
 	TLSCertPath string `koanf:"tls-cert-path"`
 	TLSKeyPath  string `koanf:"tls-key-path"`
@@ -448,6 +450,7 @@ func addGeneralFlags(f *flag.FlagSet) {
 	f.Uint("port", defaultPort, "Port to listen from")
 	f.String("proxy-urls", "", "Allow proxy requests to specified URLs")
 	f.Bool("enable-helm", false, "Enable Helm operations")
+	f.Bool("filters-warnings-only", true, "Whether to filter events by warnings only by default")
 }
 
 func addOIDCFlags(f *flag.FlagSet) {

backend/pkg/headlampconfig/headlampConfig.go

@@ -63,4 +63,5 @@ type HeadlampCFG struct {
 	TLSCertPath           string
 	TLSKeyPath            string
 	SessionTTL            int
+	FiltersWarningsOnly   bool
 }

charts/headlamp/templates/deployment.yaml

@@ -325,6 +325,7 @@ spec:
             {{- with .Values.config.tlsKeyPath }}
             - "-tls-key-path={{ . }}"
             {{- end }}
+            - "-filters-warnings-only={{ dig "events" "warningsOnly" true .Values.config }}"
             {{- with .Values.config.extraArgs }}
               {{- toYaml . | nindent 12 }}
             {{- end }}

charts/headlamp/tests/expected_templates/azure-oidc-with-validators.yaml

@@ -129,6 +129,7 @@ spec:
             - "-oidc-validator-client-id=$(OIDC_VALIDATOR_CLIENT_ID)"
             # Check if validatorIssuerURL is non empty either from env or oidc.config
             - "-oidc-validator-idp-issuer-url=$(OIDC_VALIDATOR_ISSUER_URL)"
+            - "-filters-warnings-only=true"
           ports:
             - name: http
               containerPort: 4466

charts/headlamp/tests/expected_templates/default.yaml

@@ -114,6 +114,7 @@ spec:
             - "-plugins-dir=/headlamp/plugins"
             - "-session-ttl=86400"
             # Check if externalSecret is disabled
+            - "-filters-warnings-only=true"
           ports:
             - name: http
               containerPort: 4466

charts/headlamp/tests/expected_templates/extra-args.yaml

@@ -114,6 +114,7 @@ spec:
             - "-plugins-dir=/headlamp/plugins"
             - "-session-ttl=86400"
             # Check if externalSecret is disabled
+            - "-filters-warnings-only=true"
             - -insecure-ssl
           ports:
             - name: http

charts/headlamp/tests/expected_templates/extra-manifests.yaml

@@ -131,6 +131,7 @@ spec:
             - "-plugins-dir=/headlamp/plugins"
             - "-session-ttl=86400"
             # Check if externalSecret is disabled
+            - "-filters-warnings-only=true"
           ports:
             - name: http
               containerPort: 4466

charts/headlamp/tests/expected_templates/host-users-override.yaml

@@ -114,6 +114,7 @@ spec:
             - "-plugins-dir=/headlamp/plugins"
             - "-session-ttl=86400"
             # Check if externalSecret is disabled
+            - "-filters-warnings-only=true"
           ports:
             - name: http
               containerPort: 4466