Feature/backend init (#3)

* move react-app to its own folder inside project

* move backend to kafka-ui repo

* setup react inside netty

* make application ready in 2 commands

* update readme

* update readme

* update readme

* update readme

* update profiles for application start inside (sdp profile) and outside docker (local profile)

* broker metrics endpoint

* topics endpoint start commit

* topics details endpoint start commit //
dependencies and versions fix

* small pom updates //
continue review fixes

* fix review issues //
save errors //
save connections and update connection logic //
save jmx, zookeeper, kafka statuses //
error with getting one topic doesn't fail others //
async metrics processing //
cluster data storage refactoring

* properties version extracting

* properties versions

* topic details

* remove jmx, topic details, topic configs

* create topic

* final fixes, topic creation

* topic creation ui fixes

* add check for cases when cluster is offline

.gitignore

@@ -1,23 +1,32 @@
-# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**
+!**/src/test/**
 
-# dependencies
-node_modules
-.pnp
-.pnp.js
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
 
-# testing
-coverage
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
 
-# production
-build
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
 
-# misc
-.DS_Store
-.env.local
-.env.development.local
-.env.test.local
-.env.production.local
-
-npm-debug.log*
-yarn-debug.log*
-yarn-error.log*
+### VS Code ###
+.vscode/
+/kafka-ui-api/app/node

.mvn/wrapper/MavenWrapperDownloader.java

@@ -0,0 +1,117 @@
+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+        + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

.mvn/wrapper/maven-wrapper.properties

@@ -0,0 +1,2 @@
+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

README.md

@@ -1,39 +1,34 @@
 # Kafka-UI
-UI for Apache Kafka management
 
-## Table of contents
-- [Getting started](#getting-started)
-- [Links](#links)
+UI for Apache Kafka management
 
 ## Getting started
 
-Install packages
+Build application and docker container
 
 ```
-npm install
+./mvnw clean install -Pprod
 ```
 
-Set correct URL to your API server in `.env`.
+Start application with kafka clusters
 
 ```
-REACT_APP_API_URL=http://api.your-kafka-rest-api.com:3004
+docker-compose -f ./docker/kafka-ui.yaml
 ```
 
-Start JSON Server if you prefer to use default full fake REST API.
-
-```
-npm run mock
-```
+Application should be available at http://localhost:8080 .
 
-Start application
+To start only kafka-clusters:
 
 ```
-npm start
+docker-compose -f ./docker/kafka-clusters-only.yaml
 ```
 
+Kafka-ui then should be started with **local** profile
 
-## Links
+### Run application without docker:
 
-* [JSON Server](https://github.com/typicode/json-server) - Fake REST API.
-* [Bulma](https://bulma.io/documentation/) - free, open source CSS framework based on Flexbox
-* [Create React App](https://github.com/facebook/create-react-app)
+```
+cd kafka-ui-api
+./mvnw spring-boot:run -Pprod
+```

docker/kafka-clusters-only.yaml

@@ -0,0 +1,81 @@
+---
+version: '2'
+services:
+
+  zookeeper0:
+    image: confluentinc/cp-zookeeper:5.1.0
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+    ports:
+     - 2181:2181
+
+  kafka0:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - zookeeper0
+    ports:
+      - 29091:29091
+      - 9997:9997
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper0:2181
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:29091,PLAINTEXT_HOST://localhost:9091,PLAIN://kafka0:29090
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT,PLAIN:PLAINTEXT
+      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      JMX_PORT: 9997
+      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dcom.sun.management.jmxremote.rmi.port=9997
+
+  kafka-init-topics0:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - kafka0
+    command: "bash -c 'echo Waiting for Kafka to be ready... && \
+                cub kafka-ready -b kafka0:29090 1 20 && \
+                kafka-topics --create --topic users --partitions 2 --replication-factor 1 --if-not-exists --zookeeper zookeeper0:2181 && \
+                kafka-topics --create --topic messages --partitions 3 --replication-factor 1 --if-not-exists --zookeeper zookeeper0:2181'"
+    environment:
+      KAFKA_BROKER_ID: ignored
+      KAFKA_ZOOKEEPER_CONNECT: ignored
+    networks:
+      - default
+
+  zookeeper1:
+    image: confluentinc/cp-zookeeper:5.1.0
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+    ports:
+      - 2182:2181
+
+  kafka1:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - zookeeper1
+    ports:
+      - 29092:29092
+      - 9998:9998
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper1:2181
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://localhost:29092,PLAINTEXT_HOST://localhost:9092,PLAIN://kafka1:29090
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT,PLAIN:PLAINTEXT
+      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      JMX_PORT: 9998
+      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=localhost -Dcom.sun.management.jmxremote.rmi.port=9998
+
+  kafka-init-topics1:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - kafka1
+    command: "bash -c 'echo Waiting for Kafka to be ready... && \
+                cub kafka-ready -b kafka1:29090 1 20 && \
+                kafka-topics --create --topic users --partitions 3 --replication-factor 1 --if-not-exists --zookeeper zookeeper1:2181 && \
+                kafka-topics --create --topic messages --partitions 2 --replication-factor 1 --if-not-exists --zookeeper zookeeper1:2181'"
+    environment:
+      KAFKA_BROKER_ID: ignored
+      KAFKA_ZOOKEEPER_CONNECT: ignored
+    networks:
+      - default

docker/kafka-ui.yaml

@@ -0,0 +1,55 @@
+---
+version: '2'
+services:
+
+  kafka-ui:
+    container_name: kafka-ui-api
+    image: kafka-ui-api:latest
+    ports:
+      - 8080:8080
+    depends_on:
+      - zookeeper0
+      - zookeeper1
+      - kafka0
+      - kafka1
+    command: [ "java", "-jar", "kafka-ui-api.jar", "--spring.profiles.active=sdp"]
+
+  zookeeper0:
+    image: confluentinc/cp-zookeeper:5.1.0
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+
+  kafka0:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - zookeeper0
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper0:2181
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka0:29092,PLAINTEXT_HOST://localhost:9092
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      JMX_PORT: 9997
+      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka0 -Dcom.sun.management.jmxremote.rmi.port=9997
+
+  zookeeper1:
+    image: confluentinc/cp-zookeeper:5.1.0
+    environment:
+      ZOOKEEPER_CLIENT_PORT: 2181
+      ZOOKEEPER_TICK_TIME: 2000
+
+  kafka1:
+    image: confluentinc/cp-kafka:5.1.0
+    depends_on:
+      - zookeeper1
+    environment:
+      KAFKA_BROKER_ID: 1
+      KAFKA_ZOOKEEPER_CONNECT: zookeeper1:2181
+      KAFKA_ADVERTISED_LISTENERS: PLAINTEXT://kafka1:29092,PLAINTEXT_HOST://localhost:9092
+      KAFKA_LISTENER_SECURITY_PROTOCOL_MAP: PLAINTEXT:PLAINTEXT,PLAINTEXT_HOST:PLAINTEXT
+      KAFKA_INTER_BROKER_LISTENER_NAME: PLAINTEXT
+      KAFKA_OFFSETS_TOPIC_REPLICATION_FACTOR: 1
+      JMX_PORT: 9997
+      KAFKA_JMX_OPTS: -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=kafka1 -Dcom.sun.management.jmxremote.rmi.port=9997