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22d5b2e305
* Combine cobra.Command helper functions into validate package from registry and common packages * Introduce ChoiceValue for flags Signed-off-by: Jhon Honce <jhonce@redhat.com>
22 lines
684 B
Go
22 lines
684 B
Go
package common
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import (
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"github.com/docker/go-connections/nat"
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"github.com/pkg/errors"
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)
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func verifyExpose(expose []string) error {
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// add the expose ports from the user (--expose)
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// can be single or a range
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for _, expose := range expose {
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// support two formats for expose, original format <portnum>/[<proto>] or <startport-endport>/[<proto>]
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_, port := nat.SplitProtoPort(expose)
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// parse the start and end port and create a sequence of ports to expose
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// if expose a port, the start and end port are the same
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_, _, err := nat.ParsePortRange(port)
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if err != nil {
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return errors.Wrapf(err, "invalid range format for --expose: %s", expose)
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}
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}
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return nil
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}
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