add code coverage

Author: eranra

.github/workflows/greetings.yml

@@ -1,4 +1,4 @@
-name: Greetings
+name: greetings
 
 on: [pull_request, issues]
 

.github/workflows/pull_request.yml

@@ -1,4 +1,4 @@
-name: Check pull request
+name: pull request checks
 
 on:
   push:
@@ -25,5 +25,12 @@ jobs:
       uses: actions/checkout@v2
     - name: run build
       run: make build
-    - name: run test
+    - name: run tests
       run: make test
+    - name: upload coverage to codecov.io
+      uses: codecov/codecov-action@v2
+      with:
+        files: /tmp/coverage.out
+        token: ${{ secrets.CODECOV_SECRET }}
+        flags: unittests
+        fail_ci_if_error: true

.github/workflows/push_image.yml

@@ -1,4 +1,4 @@
-name: Push image to quay.io
+name: push to quay.io
 on:
   push:
     branches: [ main ]

README.md

@@ -1,3 +1,8 @@
+
+[![pull request](https://github.com/netobserv/flowlogs2metrics/actions/workflows/pull_request.yml/badge.svg?branch=main)](https://github.com/netobserv/flowlogs2metrics/actions/workflows/pull_request.yml)
+[![Push image to quay.io](https://github.com/netobserv/flowlogs2metrics/actions/workflows/push_image.yml/badge.svg)](https://github.com/netobserv/flowlogs2metrics/actions/workflows/push_image.yml)
+[![codecov](https://codecov.io/gh/netobserv/flowlogs2metrics/branch/main/graph/badge.svg?token=KMZKG6PRS9)](https://codecov.io/gh/netobserv/flowlogs2metrics)
+
 # Overview
 
 **Flow-Logs to Metrics** (a.k.a. FL2M) is an **observability tool** that consumes raw **network flow-logs** and