add Jenkins support

Jenkinsfile

@@ -0,0 +1,27 @@
+pipeline {
+    agent {
+        docker {
+           image 'maven:3-alpine'
+            args '-v /root/.m2:/root/.m2 -v /home/docker/innaircbot/files/artifact:/rel'
+        }
+    }
+
+    stages {
+        stage('Build') {
+            steps {
+                sh 'mvn -B -DskipTests clean package'
+            }
+        }
+        stage('Test') {
+            steps {
+                echo 'Skip testing...'
+            }
+        }
+        stage('Deploy') {
+            steps {
+                sh 'cp  ./target/InnaIrcBot-*-jar-with-dependencies.jar /rel/InnaIrcBot.jar'
+                // sh 'docker restart innaircbot'
+            }
+        }
+    }
+}

README.md

@@ -29,7 +29,7 @@ Used libraries:
 - [ ] Documentation
 - [ ] Code refactoring
 - [ ] QA: good regression testing
-- [ ] CI/CD
+- [x] CI/CD Jenkins
 - [ ] Suppress messages from server or handle them separately from selected worker
 - [ ] Logs backend workers as threads (SQLite and co. are too slow)
 - [ ] Logs backend worker for mongodb