ports.go

/*
Copyright IBM Corp All Rights Reserved.

SPDX-License-Identifier: Apache-2.0
*/

package integration

import (
	"fmt"
	"os"

	"github.com/onsi/ginkgo"
)

// TestPortRange represents a port range
type TestPortRange int

const (
	basePort      = 20000
	portsPerNode  = 50
	portsPerSuite = 10 * portsPerNode
)

const (
	DiscoveryBasePort TestPortRange = basePort + portsPerSuite*iota
	E2EBasePort
	GossipBasePort
	IdemixBasePort
	LedgerPort
	LifecyclePort
	MSPPort
	NWOBasePort
	PluggableBasePort
	PrivateDataBasePort
	RaftBasePort
	SBEBasePort
)

// On linux, the default ephemeral port range is 32768-60999 and can be
// allocated by the system for the client side of TCP connections or when
// programs explicitly request one. Given linux is our default CI system,
// we want to try avoid ports in that range.
func (t TestPortRange) StartPortForNode() int {
	const startEphemeral, endEphemeral = 32768, 60999

	port := int(t) + portsPerNode*(ginkgo.GinkgoParallelNode()-1)
	if port >= startEphemeral-portsPerNode && port <= endEphemeral-portsPerNode {
		fmt.Fprintf(os.Stderr, "WARNING: port %d is part of the default ephemeral port range on linux", port)
	}
	return port
}