that's all folks

src/com/example/DockerBuilder.groovy

@@ -0,0 +1,42 @@
+package com.example
+
+class DockerBuilder {
+    def dockerBuildAndPush(String dockerRepo, String imageName, String dockerfilePath, String buildContext, String nexusUser, String nexusPass) {
+        container('docker') {
+            sh "dockerd --insecure-registry http://${dockerRepo} &"
+            echo "Started Docker daemon in container 'docker'"
+
+            sh "docker build -t ${imageName} -f ${dockerfilePath} ${buildContext}"
+            echo "Docker image ${imageName} built"
+
+            sh "docker login http://${dockerRepo} -u ${nexusUser} -p ${nexusPass}"
+            echo "Logged 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}"
+        }
+    }
+
+    def customDockerBuildAndPush(String dockerRepo, String imageName, String dockerfilePath, String buildContext, String nexusUser, String nexusPass) {
+        container('custom-docker') {
+            sh "dockerd &"
+            echo "Started Docker daemon in container 'custom-docker'"
+
+            sh "docker build -t ${imageName} -f ${dockerfilePath} ${buildContext}"
+            echo "Docker image ${imageName} built"
+
+            sh "docker login http://${dockerRepo} -u ${nexusUser} -p ${nexusPass}"
+            echo "Logged 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}"
+
+        }
+    }
+}