mirror of https://github.com/containers/podman.git
44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
package common
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import (
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"strconv"
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"github.com/cri-o/ocicni/pkg/ocicni"
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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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// createPortBindings iterates ports mappings and exposed ports into a format CNI understands
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func createPortBindings(ports []string) ([]ocicni.PortMapping, error) {
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// TODO wants someone to rewrite this code in the future
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var portBindings []ocicni.PortMapping
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// The conversion from []string to natBindings is temporary while mheon reworks the port
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// deduplication code. Eventually that step will not be required.
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_, natBindings, err := nat.ParsePortSpecs(ports)
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if err != nil {
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return nil, err
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}
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for containerPb, hostPb := range natBindings {
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var pm ocicni.PortMapping
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pm.ContainerPort = int32(containerPb.Int())
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for _, i := range hostPb {
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var hostPort int
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var err error
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pm.HostIP = i.HostIP
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if i.HostPort == "" {
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hostPort = containerPb.Int()
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} else {
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hostPort, err = strconv.Atoi(i.HostPort)
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if err != nil {
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return nil, errors.Wrapf(err, "unable to convert host port to integer")
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}
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}
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pm.HostPort = int32(hostPort)
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pm.Protocol = containerPb.Proto()
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portBindings = append(portBindings, pm)
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}
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}
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return portBindings, nil
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}
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