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[ctr] add HOSTNAME env for host network

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Set the hostname environment var when using host networking via ctr

Signed-off-by: Michael Crosby <michael@thepasture.io>
This commit is contained in:
Michael Crosby 2021-08-18 14:42:36 +00:00
parent fda782a7b9
commit 6f60b3016f
1 changed files with 11 additions and 1 deletions
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12
cmd/ctr/commands/run/run_unix.go
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@ -21,6 +21,7 @@ package run
import (
gocontext "context"
"fmt"
"os"
"path/filepath"
"strconv"
"strings"
@ -200,7 +201,16 @@ func NewContainer(ctx gocontext.Context, client *containerd.Client, context *cli
opts = append(opts, oci.WithPrivileged, oci.WithAllDevicesAllowed, oci.WithHostDevices)
}
if context.Bool("net-host") {
opts = append(opts, oci.WithHostNamespace(specs.NetworkNamespace), oci.WithHostHostsFile, oci.WithHostResolvconf)
hostname, err := os.Hostname()
if err != nil {
return nil, errors.Wrap(err, "get hostname")
}
opts = append(opts,
oci.WithHostNamespace(specs.NetworkNamespace),
oci.WithHostHostsFile,
oci.WithHostResolvconf,
oci.WithEnv([]string{fmt.Sprintf("HOSTNAME=%s", hostname)}),
)
}
seccompProfile := context.String("seccomp-profile")