Don't generate null mounts cloud-config entry

Signed-off-by: Anders F Björklund <[email protected]>

Author: afbjorklund

pkg/cidata/cidata.TEMPLATE.d/user-data

@@ -11,7 +11,7 @@ package_upgrade: true
 package_reboot_if_required: true
 {{- end }}
 
-{{- if or .RosettaEnabled (or (eq .MountType "9p") (eq .MountType "virtiofs")) }}
+{{- if or .RosettaEnabled (and .Mounts (or (eq .MountType "9p") (eq .MountType "virtiofs"))) }}
 mounts:
   {{- if .RosettaEnabled }}{{/* Mount the rosetta volume before systemd-binfmt.service(8) starts */}}
 - [vz-rosetta, /mnt/lima-rosetta, virtiofs, defaults, "0", "0"]

pkg/cidata/template_test.go

@@ -30,6 +30,7 @@ func TestConfig(t *testing.T) {
 	assert.NilError(t, err)
 	t.Log(string(config))
 	assert.Assert(t, !strings.Contains(string(config), "ca_certs:"))
+	assert.Assert(t, !strings.Contains(string(config), "mounts:"))
 }
 
 func TestConfigCACerts(t *testing.T) {
@@ -54,6 +55,51 @@ func TestConfigCACerts(t *testing.T) {
 	assert.Assert(t, strings.Contains(string(config), "ca_certs:"))
 }
 
+var defaultMounts = []Mount{
+	{MountPoint: "/home/foo.linux", Tag: "mount0", Type: "virtiofs", Options: "ro"},
+	{MountPoint: "/tmp/lima", Tag: "mount1", Type: "virtiofs"},
+}
+
+func TestConfigMounts(t *testing.T) {
+	args := &TemplateArgs{
+		Name:    "default",
+		User:    "foo",
+		UID:     501,
+		Comment: "Foo",
+		Home:    "/home/foo.linux",
+		Shell:   "/bin/bash",
+		SSHPubKeys: []string{
+			"ssh-rsa dummy [email protected]",
+		},
+		MountType: "virtiofs", // override
+		Mounts:    defaultMounts,
+	}
+	config, err := ExecuteTemplateCloudConfig(args)
+	assert.NilError(t, err)
+	t.Log(string(config))
+	assert.Assert(t, strings.Contains(string(config), "mounts:"))
+}
+
+func TestConfigMountsNone(t *testing.T) {
+	args := &TemplateArgs{
+		Name:    "default",
+		User:    "foo",
+		UID:     501,
+		Comment: "Foo",
+		Home:    "/home/foo.linux",
+		Shell:   "/bin/bash",
+		SSHPubKeys: []string{
+			"ssh-rsa dummy [email protected]",
+		},
+		MountType: "virtiofs", // override
+		Mounts:    []Mount{},
+	}
+	config, err := ExecuteTemplateCloudConfig(args)
+	assert.NilError(t, err)
+	t.Log(string(config))
+	assert.Assert(t, !strings.Contains(string(config), "mounts:"))
+}
+
 func TestTemplate(t *testing.T) {
 	args := &TemplateArgs{
 		Name:  "default",