Added CI caching

.gitlab-ci.yml

@@ -3,10 +3,13 @@ stages:
 go_build:
   stage: build
   image: golang:1.12
-  script:
-    - go mod vendor
-    - go test ./...
   cache:
     key: ${CI_COMMIT_REF_SLUG}
     paths:
-      - vendor/
+      - .cache
+  script:
+    - mkdir -p .cache/cache
+    - mkdir -p .cache/go
+    - export GOCACHE="$CI_PROJECT_DIR/.cache/cache"
+    - export GOPATH="$CI_PROJECT_DIR/.cache/go"
+    - go test ./...