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memory: fix panics if metrics does not exists (#1960)

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Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
This commit is contained in:
Jan-Otto Kröpke
2025-04-04 23:21:26 +02:00
committed by GitHub
parent 88c929ac6f
commit ecc805f0fa
39 changed files with 565 additions and 364 deletions
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10
internal/collector/net/net.go
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@@ -164,6 +164,14 @@ func (c *Collector) Close() error {
}
func (c *Collector) Build(logger *slog.Logger, _ *mi.Session) error {
for _, collector := range c.config.CollectorsEnabled {
if !slices.Contains([]string{subCollectorMetrics, subCollectorNicInfo}, collector) {
return fmt.Errorf("unknown sub collector: %s. Possible values: %s", collector,
strings.Join([]string{subCollectorMetrics, subCollectorNicInfo}, ", "),
)
}
}
c.bytesReceivedTotal = prometheus.NewDesc(
prometheus.BuildFQName(types.Namespace, Name, "bytes_received_total"),
"(Network.BytesReceivedPerSec)",
@@ -286,7 +294,7 @@ func (c *Collector) Build(logger *slog.Logger, _ *mi.Session) error {
// Collect sends the metric values for each metric
// to the provided prometheus Metric channel.
func (c *Collector) Collect(ch chan<- prometheus.Metric) error {
errs := make([]error, 0, 2)
errs := make([]error, 0)
if slices.Contains(c.config.CollectorsEnabled, subCollectorMetrics) {
if err := c.collect(ch); err != nil {