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Zeebe Simple Monitor

License

Compatible with: Camunda Platform 8

A monitoring application for Zeebe. It is designed for developers to

  • get in touch with Zeebe and workflow execution (BPMN)
  • test workflows manually
  • provide insides on how workflows are executed

The application imports the data from Zeebe using the Hazelcast exporter. It aggregates the data and stores it into a (in-memory) database. The data is displayed on server-side rendered HTML pages.

how-it-works

Install

Upgrading from a prior version

See the upgrade instructions.

Docker

The docker image for the worker is published to GitHub Packages.

docker pull ghcr.io/camunda-community-hub/zeebe-simple-monitor:2.3.0
  • ensure that a Zeebe broker is running with a Hazelcast exporter (>= 1.0.0)
  • forward the Hazelcast port to the docker container (default: 5701)
  • configure the connection to the Zeebe broker by setting zeebe.client.broker.gateway-address (default: localhost:26500)
  • configure the connection to Hazelcast by setting zeebe.client.worker.hazelcast.connection (default: localhost:5701)

If the Zeebe broker runs on your local machine with the default configs then start the container with the following command:

docker run --network="host" ghcr.io/camunda-community-hub/zeebe-simple-monitor:2.3.0

For a local setup, the repository contains a docker-compose file. It starts a Zeebe broker with the Hazelcast exporter and the application.

mvn clean install -DskipTests
cd docker
docker-compose --profile in-memory up

Go to http://localhost:8082

To use PostgreSQL instead of the in-memory database, use the profile postgres.

docker-compose --profile postgres up

Manual

  1. Download the latest application JAR (zeebe-simple-monitor-%{VERSION}.jar )

  2. Start the application java -jar zeebe-simple-monitor-{VERSION}.jar

  3. Go to http://localhost:8082

Configuration

The application is a Spring Boot application that uses the Spring Zeebe Starter. The configuration can be changed via environment variables or an application.yaml file. See also the following resources:

By default, the port is set to 8082 and the database is only in-memory (i.e. not persistent).

zeebe:

  client:
    broker.gateway-address: 127.0.0.1:26500
    security.plaintext: true
    
    worker:
      hazelcast:
        connection: localhost:5701
        connectionTimeout: PT30S

spring:

  datasource:
    url: jdbc:h2:mem:zeebe-monitor;DB_CLOSE_DELAY=-1
    username: sa
    password:
    driverClassName: org.h2.Driver

  jpa:
    database-platform: org.hibernate.dialect.H2Dialect
    hibernate:
      ddl-auto: update

server:
  port: 8082
  servlet:
    context-path: /

Change the Context-Path

The context-path or base-path of the application can be changed using the following property:

server:
  servlet:
    context-path: /monitor/

It is then available under http://localhost:8082/monitor.

Customize the Look & Feel

You can customize the look & feel of the Zeebe Simple Monitor (aka. white-labeling). For example, to change the logo or alter the background color. The following configurations are available:

- white-label.logo.path=img/logo.png
- white-label.custom.title=Zeebe Simple Monitor
- white-label.custom.css.path=css/custom.css
- white-label.custom.js.path=js/custom.js

Change the Database

For example, using PostgreSQL:

  • change the following database configuration settings
- spring.datasource.url=jdbc:postgresql://db:5432/postgres
- spring.datasource.username=postgres
- spring.datasource.password=zeebe
- spring.datasource.driverClassName=org.postgresql.Driver
- spring.jpa.properties.hibernate.dialect=org.hibernate.dialect.PostgreSQLDialect
  • the PostgreSQL database driver is already bundled

See the docker-compose file (profile: postgres) for a sample configuration with PostgreSQL.

Code of Conduct

This project adheres to the Contributor Covenant Code of Conduct. By participating, you are expected to uphold this code. Please report unacceptable behavior to [email protected].

License

Apache License, Version 2.0

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Simple monitoring application to show insides of Zeebe

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