User might need to get image opentelemetry-collector-contrib from Bitnami catalog, which includes some additional receivers in addition to what is packaged in otel/opentelemetry-collector. However, only OpenTelemetry Collector could be found in Bitnami Library.
Bitnami Secure Images
The image OpenTelemetry Collector in Bitnami Library is the right image to download. The source for building this container image is actually fetched from https://github.com/open-telemetry/opentelemetry-collector-contrib.