Add vars/simpleDockerBuild

vars/simpleDockerBuild

@@ -0,0 +1,14 @@
+def call(String dockerRepo, String imageName, String dockerfilePath, String buildContext, String nexusUser, String nexusPass) {
+    container('docker') {
+        sh "dockerd --insecure-registry http://${dockerRepo} &"
+        echo "Started Docker daemon"
+        sh "docker build -t ${imageName} -f ${dockerfilePath} ${buildContext}"
+        echo "Docker image ${imageName} built"
+        sh "docker login http://${dockerRepo} -u ${nexusUser} -p ${nexusPass}"
+        echo "Logging in to ${dockerRepo}"
+        sh "docker tag ${imageName} ${dockerRepo}/my-docker-repo/${imageName}:latest"
+        echo "Image ${imageName} tagged"
+        sh "docker push ${dockerRepo}/my-docker-repo/${imageName}:latest"
+        echo "Pushed Docker image ${imageName} to ${dockerRepo}"
+    }
+}