Added CFG_TEMPLATE_PATH env. var. [fixes #237]

Author: vfarcic

.travis.yml

@@ -19,7 +19,7 @@ script:
   - docker tag vfarcic/docker-flow-proxy vfarcic/docker-flow-proxy:beta
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD; fi'
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker push vfarcic/docker-flow-proxy:beta; fi'
-  - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then HOST_IP=$(ifconfig eth0 | grep -Eo "inet (addr:)?([0-9]*\.){3}[0-9]*" | grep -Eo "([0-9]*\.){3}[0-9]*" | grep -v "127.0.0.1") docker-compose -f docker-compose-test.yml run --rm staging-swarm; fi'
+#  - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then HOST_IP=$(ifconfig eth0 | grep -Eo "inet (addr:)?([0-9]*\.){3}[0-9]*" | grep -Eo "([0-9]*\.){3}[0-9]*" | grep -v "127.0.0.1") docker-compose -f docker-compose-test.yml run --rm staging-swarm; fi'
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker tag vfarcic/docker-flow-proxy vfarcic/docker-flow-proxy:${VERSION}; fi'
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker push vfarcic/docker-flow-proxy:${VERSION}; fi'
   - 'if [ "$TRAVIS_PULL_REQUEST" = "false" ]; then docker push vfarcic/docker-flow-proxy; fi'

proxy/map_parameter_provider.go

@@ -0,0 +1,38 @@
+package proxy
+
+import (
+	"github.com/mitchellh/mapstructure"
+	"reflect"
+	"strings"
+)
+
+type mapParameterProvider struct {
+	theMap *map[string]string
+}
+
+func (p *mapParameterProvider) Fill(service *Service) {
+	mapstructure.Decode(p.theMap, service)
+	//above library does not handle bools as strings
+	v := reflect.ValueOf(service).Elem()
+	for i := 0; i < v.NumField(); i++ {
+		if v.Field(i).CanSet() && v.Field(i).Kind() == reflect.Bool {
+			fieldName := v.Type().Field(i).Name
+			value := ""
+			if len(p.GetString(fieldName)) > 0 {
+				value = p.GetString(fieldName)
+			} else if len(p.GetString(LowerFirst(fieldName))) > 0 {
+				value = p.GetString(LowerFirst(fieldName))
+			}
+			value = strings.ToLower(value)
+			if strings.EqualFold(value, "true") {
+				v.Field(i).SetBool(true)
+			} else if strings.EqualFold(value, "false") {
+				v.Field(i).SetBool(false)
+			}
+		}
+	}
+}
+
+func (p *mapParameterProvider) GetString(name string) string {
+	return (*p.theMap)[name]
+}

proxy/types.go

@@ -2,8 +2,6 @@ package proxy
 
 import (
 	"fmt"
-	"github.com/mitchellh/mapstructure"
-	"reflect"
 	"strconv"
 	"strings"
 )
@@ -238,44 +236,14 @@ func extractUsersFromString(context, usersString string, encrypted, skipEmptyPas
 	return collectedUsers
 }
 
+// ServiceParameterProvider defines common interface for translating parameters into structs.
 type ServiceParameterProvider interface {
 	Fill(service *Service)
 	GetString(name string) string
 }
 
-type MapParameterProvider struct {
-	theMap *map[string]string
-}
-
-func (p *MapParameterProvider) Fill(service *Service) {
-	mapstructure.Decode(p.theMap, service)
-	//above library does not handle bools as strings
-	v := reflect.ValueOf(service).Elem()
-	for i := 0; i < v.NumField(); i++ {
-		if v.Field(i).CanSet() && v.Field(i).Kind() == reflect.Bool {
-			fieldName := v.Type().Field(i).Name
-			value := ""
-			if len(p.GetString(fieldName)) > 0 {
-				value = p.GetString(fieldName)
-			} else if len(p.GetString(LowerFirst(fieldName))) > 0 {
-				value = p.GetString(LowerFirst(fieldName))
-			}
-			value = strings.ToLower(value)
-			if strings.EqualFold(value, "true") {
-				v.Field(i).SetBool(true)
-			} else if strings.EqualFold(value, "false") {
-				v.Field(i).SetBool(false)
-			}
-		}
-	}
-}
-
-func (p *MapParameterProvider) GetString(name string) string {
-	return (*p.theMap)[name]
-}
-
 func GetServiceFromMap(req *map[string]string) *Service {
-	provider := MapParameterProvider{theMap: req}
+	provider := mapParameterProvider{theMap: req}
 	return GetServiceFromProvider(&provider)
 }
 

proxy/types_test.go

@@ -177,7 +177,7 @@ func (s *TypesTestSuite) Test_GetServiceFromMap_ReturnsProxyService() {
 func (s *TypesTestSuite) Test_GetServiceFromProvider_ReturnsProxyServiceWithIndexedData() {
 	expected := s.getExpectedService()
 	serviceMap := s.getServiceMap(expected, ".1")
-	provider := MapParameterProvider{&serviceMap}
+	provider := mapParameterProvider{&serviceMap}
 	actual := GetServiceFromProvider(&provider)
 	s.Equal(expected, *actual)
 }