mirror of https://github.com/containers/podman.git
27 lines
569 B
Go
27 lines
569 B
Go
package utils
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import (
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"net"
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"strconv"
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"github.com/pkg/errors"
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)
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// Find a random, open port on the host.
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func GetRandomPort() (int, error) {
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l, err := net.Listen("tcp", ":0")
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if err != nil {
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return 0, errors.Wrapf(err, "unable to get free TCP port")
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}
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defer l.Close()
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_, randomPort, err := net.SplitHostPort(l.Addr().String())
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if err != nil {
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return 0, errors.Wrapf(err, "unable to determine free port")
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}
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rp, err := strconv.Atoi(randomPort)
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if err != nil {
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return 0, errors.Wrapf(err, "unable to convert random port to int")
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}
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return rp, nil
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}
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