func findContainer()

in local-container-endpoints/handlers/metadata.go [242:265]

• 20 lines of code
• 6 McCabe index (conditional complexity)

func findContainer(dockerContainers []types.Container, identifier string, callerIP string) (*types.Container, error) {
	var filteredList = dockerContainers

	if identifier != "" {
		filteredList = filterContainersByIdentifier(dockerContainers, identifier)
		if len(filteredList) == 1 { // we found the container
			return &filteredList[0], nil
		}
	}

	if callerIP != "" {
		filteredList = filterContainersByRequestIP(filteredList, callerIP)
		if len(filteredList) == 1 { // we found the container
			return &filteredList[0], nil
		}
	}

	filteredList = filterContainersByMyNetworks(filteredList, dockerContainers, callerIP)
	if len(filteredList) == 1 { // we found the container
		return &filteredList[0], nil
	}

	return nil, fmt.Errorf("Failed to find the container which the request came from. Narrowed down search to %d containers", len(filteredList))
}