mirror of https://github.com/containers/podman.git
52 lines
1.5 KiB
Go
52 lines
1.5 KiB
Go
package generate
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import (
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"fmt"
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"os"
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"github.com/containers/podman/v4/libpod"
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"github.com/containers/podman/v4/pkg/specgen"
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"github.com/opencontainers/runtime-tools/generate"
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"github.com/sirupsen/logrus"
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)
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func specConfigureNamespaces(s *specgen.SpecGenerator, g *generate.Generator, rt *libpod.Runtime, pod *libpod.Pod) error {
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// UTS
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hostname := s.Hostname
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if hostname == "" {
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switch {
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case s.UtsNS.NSMode == specgen.FromPod:
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hostname = pod.Hostname()
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case s.UtsNS.NSMode == specgen.FromContainer:
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utsCtr, err := rt.LookupContainer(s.UtsNS.Value)
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if err != nil {
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return fmt.Errorf("looking up container to share uts namespace with: %w", err)
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}
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hostname = utsCtr.Hostname()
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case (s.NetNS.NSMode == specgen.Host && hostname == "") || s.UtsNS.NSMode == specgen.Host:
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tmpHostname, err := os.Hostname()
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if err != nil {
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return fmt.Errorf("unable to retrieve hostname of the host: %w", err)
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}
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hostname = tmpHostname
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default:
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logrus.Debug("No hostname set; container's hostname will default to runtime default")
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}
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}
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g.RemoveHostname()
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if s.Hostname != "" || s.UtsNS.NSMode != specgen.Host {
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// Set the hostname in the OCI configuration only if specified by
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// the user or if we are creating a new UTS namespace.
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// TODO: Should we be doing this for pod or container shared
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// namespaces?
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g.SetHostname(hostname)
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}
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if _, ok := s.Env["HOSTNAME"]; !ok && s.Hostname != "" {
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g.AddProcessEnv("HOSTNAME", hostname)
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}
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return nil
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}
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