Add code coverage to Jenkins

Jenkinsfile

@@ -2,6 +2,7 @@ pipeline {
   agent {
     docker {
       image 'rust:latest'
+      args '-u root --privileged'
     }
   }
   stages {
@@ -15,5 +16,16 @@ pipeline {
             sh "cargo test"
         }
     }
+    stage('Coverage') {
+        steps {
+            sh "cargo install cargo-tarpaulin"
+            sh "make generate-coverage"
+        }
+    }
+  }
+  post {
+    always {
+        cobertura coberturaReportFile: 'cobertura.xml'
+    }
   }
 }

Makefile

@@ -0,0 +1,14 @@
+coverage: coverage.html
+
+coverage.html: coverage-report
+
+generate-coverage:
+	cargo tarpaulin --out Xml
+
+coverage-report: generate-coverage
+	pycobertura show --format html --output coverage.html cobertura.xml
+
+clean:
+	cargo clean
+	rm cobertura.xml
+	rm coverage.html