Fix for podman machine init not creating necessary JSON file when is …

…passed. This bug was first described in containers#23544.

Signed-off-by: Graceson Aufderheide <[email protected]>

pkg/machine/shim/host.go

@@ -196,30 +196,39 @@ func Init(opts machineDefine.InitOptions, mp vmconfigs.VMProvider) error {
 	// copy it into the conf dir
 	if len(opts.IgnitionPath) > 0 {
 		err = ignBuilder.BuildWithIgnitionFile(opts.IgnitionPath)
-		return err
-	}
 
-	err = ignBuilder.GenerateIgnitionConfig()
-	if err != nil {
-		return err
-	}
+		if err != nil {
+			return err
+		}
+	} else {
 
-	readyIgnOpts, err := mp.PrepareIgnition(mc, &ignBuilder)
-	if err != nil {
-		return err
-	}
+		err = ignBuilder.GenerateIgnitionConfig()
+		if err != nil {
+			return err
+		}
 
-	readyUnitFile, err := ignition.CreateReadyUnitFile(mp.VMType(), readyIgnOpts)
-	if err != nil {
-		return err
-	}
+		readyIgnOpts, err := mp.PrepareIgnition(mc, &ignBuilder)
+		if err != nil {
+			return err
+		}
 
-	readyUnit := ignition.Unit{
-		Enabled:  ignition.BoolToPtr(true),
-		Name:     "ready.service",
-		Contents: ignition.StrToPtr(readyUnitFile),
+		readyUnitFile, err := ignition.CreateReadyUnitFile(mp.VMType(), readyIgnOpts)
+		if err != nil {
+			return err
+		}
+
+		readyUnit := ignition.Unit{
+			Enabled:  ignition.BoolToPtr(true),
+			Name:     "ready.service",
+			Contents: ignition.StrToPtr(readyUnitFile),
+		}
+		ignBuilder.WithUnit(readyUnit)
+
+		err = ignBuilder.Build()
+		if err != nil {
+			return err
+		}
 	}
-	ignBuilder.WithUnit(readyUnit)
 
 	// Mounts
 	if mp.VMType() != machineDefine.WSLVirt {
@@ -245,11 +254,6 @@ func Init(opts machineDefine.InitOptions, mp vmconfigs.VMProvider) error {
 		return err
 	}
 
-	err = ignBuilder.Build()
-	if err != nil {
-		return err
-	}
-
 	return mc.Write()
 }
 

pkg/machine/shim/host_test.go

@@ -0,0 +1,117 @@
+package shim
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/containers/podman/v5/pkg/machine/define"
+	"github.com/containers/podman/v5/pkg/machine/env"
+	provider2 "github.com/containers/podman/v5/pkg/machine/provider"
+	"github.com/containers/podman/v5/pkg/machine/vmconfigs"
+)
+
+func fileExists(filename string) bool {
+	_, err := os.Stat(filename)
+	return err == nil
+}
+
+func createTempIgnitionFile(t *testing.T) string {
+	t.Helper()
+
+	mockIgnitionContent := `{"ignition":{"version":"3.4.0"},"passwd":{"users":[{"name":"core"}]}}`
+
+	tmpFile, err := os.CreateTemp("", "test-ignition-*.ign")
+	if err != nil {
+		t.Fatalf("Failed to create temporary ignition file: %v", err)
+	}
+
+	if _, err := tmpFile.WriteString(mockIgnitionContent); err != nil {
+		t.Fatalf("Failed to write to temporary ignition file: %v", err)
+	}
+
+	if err := tmpFile.Close(); err != nil {
+		t.Fatalf("Failed to close temporary ignition file: %v", err)
+	}
+
+	return tmpFile.Name()
+}
+
+func TestInit(t *testing.T) {
+	var (
+		provider vmconfigs.VMProvider
+	)
+
+	provider, err := provider2.Get()
+	if err != nil {
+		t.Fatalf("Failed to get provider: %v", err)
+	}
+
+	dirs, err := env.GetMachineDirs(provider.VMType())
+	if err != nil {
+		t.Fatalf("Failed to get dirs: %v", err)
+	}
+
+	tempIgnitionPath := createTempIgnitionFile(t)
+	defer func(name string) {
+		err := os.Remove(name)
+		if err != nil {
+			t.Fatalf("Failed to remove temp ignition file: %v", err)
+		}
+	}(tempIgnitionPath)
+
+	type args struct {
+		opts define.InitOptions
+		mp   vmconfigs.VMProvider
+	}
+	tests := []struct {
+		name    string
+		args    args
+		wantErr bool
+	}{
+		{
+			name: "Default machine",
+			args: args{
+				opts: define.InitOptions{
+					Name: "test-default-machine",
+				},
+				mp: provider,
+			},
+			wantErr: false,
+		},
+		{
+			name: "With ignition",
+			args: args{
+				opts: define.InitOptions{
+					Name:         "test-with-ignition",
+					IgnitionPath: tempIgnitionPath,
+				},
+				mp: provider,
+			},
+			wantErr: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if err := Init(tt.args.opts, tt.args.mp); (err != nil) != tt.wantErr {
+				t.Errorf("Init() error = %v, wantErr %v", err, tt.wantErr)
+			}
+
+			// Check for file existence only for valid initialization
+			if !tt.wantErr {
+				configDir := dirs.ConfigDir.GetPath()
+				fileExtensions := []string{".lock", ".json", ".ign"}
+
+				for _, ext := range fileExtensions {
+					filename := filepath.Join(configDir, fmt.Sprintf("%s%s", tt.args.opts.Name, ext))
+					if !fileExists(filename) {
+						t.Errorf("Expected file %s does not exist", filename)
+					} else {
+						t.Logf("File %s exists", filename)
+					}
+				}
+			}
+		})
+	}
+}