Use amd64/alpine-based swagger tool image for API spec validation

helpers.sh

@@ -25,16 +25,3 @@ function remove_containers {
     docker rm -fv func-mysql-test 2>/dev/null || true
     docker rm -fv func-minio-test 2>/dev/null || true
 }
-
-function install_swagger_tool {
-    if [[ ! -f ./swagger ]]; then
-        case "$(uname)" in
-          Linux)
-            curl -L https://github.com/go-swagger/go-swagger/releases/download/0.13.0/swagger_linux_amd64 -o ./swagger
-          ;;
-          Darwin)
-            curl -L https://github.com/go-swagger/go-swagger/releases/download/0.13.0/swagger_darwin_amd64 -o ./swagger
-        esac
-    fi
-    chmod +x ./swagger
-}

images/swagger-alpine/Dockerfile

@@ -0,0 +1,6 @@
+FROM amd64/alpine:3.5
+
+RUN apk add --no-cache curl
+RUN curl -L https://github.com/go-swagger/go-swagger/releases/download/0.13.0/swagger_linux_amd64 -o swagger
+RUN chmod +x swagger
+ENTRYPOINT ["./swagger", "validate", "/go/src/github.com/fnproject/fn/docs/swagger.yml"]

test.sh

@@ -28,6 +28,7 @@ go test $(go list ./... | grep -v vendor | grep -v examples | grep -v test/fn-ap
 go vet $(go list ./... | grep -v vendor)
 
 remove_containers
+
 install_swagger_tool
 
-./swagger validate docs/swagger.yml
+docker run -v `pwd`:/go/src/github.com/fnproject/fn --rm denismakogon/swagger-tool:0.0.1