Add option to enable http registry connections (#482)

Signed-off-by: Keith Zantow <kzantow@gmail.com>

internal/config/registry.go

@@ -20,11 +20,13 @@ type RegistryCredentials struct {
 
 type registry struct {
 	InsecureSkipTLSVerify bool                  `yaml:"insecure-skip-tls-verify" json:"insecure-skip-tls-verify" mapstructure:"insecure-skip-tls-verify"`
+	InsecureUseHTTP       bool                  `yaml:"insecure-use-http" json:"insecure-use-http" mapstructure:"insecure-use-http"`
 	Auth                  []RegistryCredentials `yaml:"auth" json:"auth" mapstructure:"auth"`
 }
 
 func (cfg registry) loadDefaultValues(v *viper.Viper) {
 	v.SetDefault("registry.insecure-skip-tls-verify", false)
+	v.SetDefault("registry.insecure-use-http", false)
 	v.SetDefault("registry.auth", []RegistryCredentials{})
 }
 
@@ -67,6 +69,7 @@ func (cfg *registry) ToOptions() *image.RegistryOptions {
 	}
 	return &image.RegistryOptions{
 		InsecureSkipTLSVerify: cfg.InsecureSkipTLSVerify,
+		InsecureUseHTTP:       cfg.InsecureUseHTTP,
 		Credentials:           auth,
 	}
 }

internal/config/registry_test.go

@@ -2,6 +2,7 @@ package config
 
 import (
 	"fmt"
+	"github.com/anchore/stereoscope/pkg/image"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -54,3 +55,57 @@ func TestHasNonEmptyCredentials(t *testing.T) {
 		})
 	}
 }
+
+func Test_registry_ToOptions(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    registry
+		expected image.RegistryOptions
+	}{
+		{
+			name:  "no registry options",
+			input: registry{},
+			expected: image.RegistryOptions{
+				Credentials: []image.RegistryCredentials{},
+			},
+		},
+		{
+			name: "set InsecureSkipTLSVerify",
+			input: registry{
+				InsecureSkipTLSVerify: true,
+			},
+			expected: image.RegistryOptions{
+				InsecureSkipTLSVerify: true,
+				Credentials:           []image.RegistryCredentials{},
+			},
+		},
+		{
+			name: "set InsecureUseHTTP",
+			input: registry{
+				InsecureUseHTTP: true,
+			},
+			expected: image.RegistryOptions{
+				InsecureUseHTTP: true,
+				Credentials:     []image.RegistryCredentials{},
+			},
+		},
+		{
+			name: "set all bool options",
+			input: registry{
+				InsecureSkipTLSVerify: true,
+				InsecureUseHTTP:       true,
+			},
+			expected: image.RegistryOptions{
+				InsecureSkipTLSVerify: true,
+				InsecureUseHTTP:       true,
+				Credentials:           []image.RegistryCredentials{},
+			},
+		},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			assert.Equal(t, &test.expected, test.input.ToOptions())
+		})
+	}
+}