Fix cidata user-data ca_certs yaml content

This is failing the cloud-config jsonschema validation, later.

  $ sudo cloud-init schema --system
  Error: Cloud config schema errors:
    ca_certs.remove_defaults: '<nil>' is not of type 'boolean',
    ca_certs.trusted: None is not of type 'array'

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

Author: afbjorklund

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

@@ -65,14 +65,20 @@ resolv_conf:
 
 {{ with .CACerts }}
 ca_certs:
+  {{- if .RemoveDefaults}}
   remove_defaults: {{ .RemoveDefaults }}
+  {{- else}}
+  remove_defaults: false
+  {{- end }}
+  {{- if .Trusted}}
   trusted:
   {{- range $cert := .Trusted }}
   - |
     {{- range $line := $cert.Lines }}
     {{ $line }}
     {{- end }}
   {{- end }}
+  {{- end }}
 {{- end }}
 
 {{- if .BootCmds }}

pkg/cidata/template_test.go

@@ -23,6 +23,8 @@ func TestTemplate(t *testing.T) {
 		},
 		MountType: "reverse-sshfs",
 	}
+	assert.Assert(t, args.CACerts.RemoveDefaults == nil)
+	assert.Assert(t, len(args.CACerts.Trusted) == 0)
 	layout, err := ExecuteTemplate(args)
 	assert.NilError(t, err)
 	for _, f := range layout {
@@ -33,6 +35,9 @@ func TestTemplate(t *testing.T) {
 		if f.Path == "user-data" {
 			// mounted later
 			assert.Assert(t, !strings.Contains(string(b), "mounts:"))
+			// ca_certs:
+			assert.Assert(t, !strings.Contains(string(b), "remove_defaults: <nil>"))
+			assert.Assert(t, !strings.Contains(string(b), "trusted:"))
 		}
 	}
 }