add codecov to Circle CI

.circleci/config.yml

@@ -30,6 +30,13 @@ references:
         docker tag $REPO:dev-$CIRCLE_SHA1 $REPO:$CIRCLE_TAG
         docker push $REPO:$CIRCLE_TAG
 
+  update_coverage: &update_coverage
+    run:
+      name: Update Coverage
+      command: |
+        go test ./pkg/... -coverprofile=coverage.txt -covermode=count
+        bash <(curl -s https://codecov.io/bash)
+
 jobs:
   build:
     docker:
@@ -50,6 +57,7 @@ jobs:
       - run: go get -u golang.org/x/lint/golint
       - run: go list ./... | grep -v vendor | xargs golint -set_exit_status
       - run: go list ./... | grep -v vendor | xargs go vet
+      - *update_coverage
 
   test-deploy:
     docker:

README.md

@@ -8,11 +8,11 @@
 [version-image]: https://img.shields.io/static/v1.svg?label=Version&message=0.1.0&color=239922
 [version-link]: https://github.com/reactiveops/polaris
 
-[circleci-link]: https://circleci.com/gh/reactiveops/polaris.svg
+[goreport-image]: https://goreportcard.com/badge/github.com/reactiveops/polaris
 [goreport-link]: https://goreportcard.com/report/github.com/reactiveops/polaris
 
 [circleci-image]: https://circleci.com/gh/reactiveops/polaris.svg?style=svg
-[goreport-image]: https://goreportcard.com/badge/github.com/reactiveops/polaris
+[circleci-link]: https://circleci.com/gh/reactiveops/polaris.svg
 
 Polaris helps keep your cluster healthy. It runs a variety of checks to ensure that Kubernetes deployments are configured using best practices that will avoid potential problems in the future. The project includes two primary components:
 

codecov.yml

@@ -0,0 +1,2 @@
+coverage:
+  range: 50...80