Add generate systemd -e/--env option

-e/--env option sets environment variables to the systemd unit files.

Fixes: #15523

Signed-off-by: Toshiki Sonoda <sonoda.toshiki@fujitsu.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/cmd/podman/generate/systemd.go b/cmd/podman/generate/systemd.go
index e40416534..a7cdd9bfe 100644
--- a/cmd/podman/generate/systemd.go
+++ b/cmd/podman/generate/systemd.go
@@ -13,6 +13,7 @@ import (
 	"github.com/containers/podman/v4/cmd/podman/registry"
 	"github.com/containers/podman/v4/cmd/podman/utils"
 	"github.com/containers/podman/v4/pkg/domain/entities"
+	envLib "github.com/containers/podman/v4/pkg/env"
 	systemDefine "github.com/containers/podman/v4/pkg/systemd/define"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
@@ -28,9 +29,11 @@ const (
 	wantsFlagName             = "wants"
 	afterFlagName             = "after"
 	requiresFlagName          = "requires"
+	envFlagName               = "env"
 )
 
 var (
+	envInput           []string
 	files              bool
 	format             string
 	systemdRestart     string
@@ -109,6 +112,9 @@ func init() {
 	flags.StringArrayVar(&systemdOptions.Requires, requiresFlagName, nil, "Similar to wants, but declares stronger requirement dependencies")
 	_ = systemdCmd.RegisterFlagCompletionFunc(requiresFlagName, completion.AutocompleteNone)
 
+	flags.StringArrayVarP(&envInput, envFlagName, "e", nil, "Set environment variables to the systemd unit files")
+	_ = systemdCmd.RegisterFlagCompletionFunc(envFlagName, completion.AutocompleteNone)
+
 	flags.SetNormalizeFunc(utils.TimeoutAliasFlags)
 }
 
@@ -141,6 +147,13 @@ func systemd(cmd *cobra.Command, args []string) error {
 	if cmd.Flags().Changed(stopTimeoutCompatFlagName) {
 		setStopTimeout++
 	}
+	if cmd.Flags().Changed(envFlagName) {
+		cliEnv, err := envLib.ParseSlice(envInput)
+		if err != nil {
+			return fmt.Errorf("error parsing environment variables: %w", err)
+		}
+		systemdOptions.AdditionalEnvVariables = envLib.Slice(cliEnv)
+	}
 	switch setStopTimeout {
 	case 1:
 		systemdOptions.StopTimeout = &stopTimeout