Fix empty env var bug

This solution provides an unlikely-to-exist default when the
OCI_CROSSMOUNT_NAMESPACE env var is not provided.

Resolves #215

Signed-off-by: Peter Engelbert <[email protected]>

Author: pmengelbert

conformance/go.mod

@@ -4,6 +4,7 @@ go 1.13
 
 require (
 	github.com/bloodorangeio/reggie v0.4.0
+	github.com/google/uuid v1.1.2
 	github.com/onsi/ginkgo v1.11.0
 	github.com/onsi/gomega v1.8.1
 	github.com/opencontainers/go-digest v1.0.0-rc1

conformance/go.sum

@@ -6,6 +6,8 @@ github.com/go-resty/resty/v2 v2.1.0 h1:Z6IefCpUMfnvItVJaJXWv/pMiiD11So35QgwEELsl
 github.com/go-resty/resty/v2 v2.1.0/go.mod h1:dZGr0i9PLlaaTD4H/hoZIDjQ+r6xq8mgbRzHZf7f2J8=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
+github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/hpcloud/tail v1.0.0 h1:nfCOvKYfkgYP8hkirhJocXT2+zOD8yUNjXaWfTlyFKI=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=

conformance/reporter.go

@@ -581,6 +581,7 @@ func (reporter *HTMLReporter) SpecSuiteWillBegin(config config.GinkgoConfigType,
 		envVarTagList,
 		envVarHideSkippedWorkflows,
 		envVarAuthScope,
+		envVarCrossmountNamespace,
 	}
 	for _, v := range varsToCheck {
 		var replacement string

conformance/setup.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/bloodorangeio/reggie"
 	g "github.com/onsi/ginkgo"
+	"github.com/google/uuid"
 	godigest "github.com/opencontainers/go-digest"
 	imagespec "github.com/opencontainers/image-spec/specs-go/v1"
 )
@@ -139,6 +140,9 @@ func init() {
 	password := os.Getenv(envVarPassword)
 	authScope := os.Getenv(envVarAuthScope)
 	crossmountNamespace = os.Getenv(envVarCrossmountNamespace)
+	if len(crossmountNamespace) == 0 {
+		crossmountNamespace = fmt.Sprintf("a-%s", uuid.New())
+	}
 
 	debug, _ := strconv.ParseBool(os.Getenv(envVarDebug))