Camunda

sudo su; mkdir /opt/ide; cd /opt/ide
tar -xzvf /home/academia/Downloads/camunda-modeler-4.12.0-linux-x64.tar.gz 
ln -s /opt/ide/camunda-modeler-4.12.0-linux-x64/camunda-modeler /usr/bin/camunda-modeler
camunda-modeler

docker-compose.yml

version: '3.4'

services:
  academia-poc:
    image: camunda/camunda-bpm-platform:run-latest
    container_name: academia_poc
    restart: always
    ports:
      - 127.0.0.1:15010:8080
    volumes:
      - ./h2:/app/camunda-h2-default
      - ./forms:/app/client/xc-tasklist/forms

docker-compose logs -ft
docker-compose up -d
docker-compose down

camunda.dev.chorke.org

vim /etc/hosts
#127.0.0.1       camuda.dev.chorke.org

mkdir /var/log/apache2/camuda.dev.chorke.org

cat <<'EOF' > /etc/apache2/sites-enabled/00-camuda.dev.chorke.org.conf
<VirtualHost *:80>
    ProxyRequests Off
    ProxyPreserveHost On
    AllowEncodedSlashes Off

    ServerAdmin [email protected]
    ServerAlias camunda.dev.chorke.org
    ServerName www.camunda.dev.chorke.org

    <Location />
        Order Allow,Deny
        Allow from all
        RequestHeader set "Host" "camunda.dev.chorke.org"
        ProxyPass http://127.0.0.1:15010/ nocanon
        ProxyPassReverse http://127.0.0.1:15010/
    </Location>

    ErrorLog ${APACHE_LOG_DIR}/camunda.dev.chorke.org/error.log
    CustomLog ${APACHE_LOG_DIR}/camunda.dev.chorke.org/access.log combined
</VirtualHost>
EOF

a2enmod headers
sudo apachectl -t
sudo systemctl restart apache2
sudo systemctl daemon-reload

http://camunda.dev.chorke.org/engine-rest/process-definition?latestVersion=true
http://camunda.dev.chorke.org/engine-rest/task?processInstanceId={processID}&withoutTenantId=false&includeAssignedTasks=false&assigned=false&unassigned=false&withoutDueDate=false&withCandidateGroups=false&withoutCandidateGroups=false&withCandidateUsers=false&withoutCandidateUsers=false&active=false&suspended=false&variableNamesIgnoreCase=false&variableValuesIgnoreCase=false

http://camunda.dev.chorke.org/camunda/app/cockpit/default/#/dashboard
http://camunda.dev.chorke.org/camunda/app/welcome/default/#!/welcome
http://camunda.dev.chorke.org/camunda/app/tasklist/default/#/
http://camunda.dev.chorke.org/camunda/app/admin/default/#/
http://camunda.dev.chorke.org/

http://camunda.dev.chorke.org/camunda/swaggerui/#/Process%20Definition/getProcessDefinitions
http://camunda.dev.chorke.org/camunda/engine-rest/deployment/create
http://camunda.dev.chorke.org/camunda/app/tasklist/default/
http://camunda.dev.chorke.org/camunda/engine-rest/
http://camunda.dev.chorke.org/camunda/swaggerui/
http://camunda.dev.chorke.org/ui/
http://camunda.dev.chorke.org/

Invoking Java

<repositories>
    <repository>
        <id>camunda-bpm-artifactory</id>
        <name>camunda-bpm-artifactory</name>
        <url>https://camunda.jfrog.io/artifactory/public/</url>
    </repository>
</repositories>

Camunda Tomcat

groupadd tomcat
useradd -s /bin/false -g tomcat -d /opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/ tomcat
chown -R tomcat /opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/{webapps,work,temp,logs}
chgrp -R tomcat /opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/
chmod -R g+r /opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/conf
chmod g+x /opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/conf
vim /etc/systemd/system/camunda.service

[Unit]
Description=Apache Tomcat Web Application Container
After=syslog.target network.target
Before=httpd.service

[Service]
Type=forking

Environment=JAVA_HOME=/usr/lib/jvm/java-8-openjdk-armhf/jre
Environment=CATALINA_PID=/opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/temp/tomcat.pid
Environment=CATALINA_HOME=/opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52
Environment=CATALINA_BASE=/opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52
Environment='CATALINA_OPTS=-Xms512M -Xmx1024M -server -XX:+UseParallelGC'
Environment='JAVA_OPTS=-Djava.awt.headless=true -Djava.security.egd=file:/dev/./urandom'

ExecStart=/opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/bin/startup.sh
ExecStop=/opt/camunda/camunda-bpm-tomcat-7.16.0/server/apache-tomcat-9.0.52/bin/shutdown.sh

User=tomcat
Group=tomcat
UMask=0007
RestartSec=10
Restart=always

[Install]
WantedBy=multi-user.target

systemctl status camunda.service
systemctl enable camunda.service
systemctl start  camunda.service

Netflix Eureka

Lookup for Version
https://www.baeldung.com/spring-cloud-netflix-eureka
https://github.com/eugenp/tutorials/tree/master/spring-cloud/spring-cloud-eureka

Lookup for Dependency
https://github.com/eugenp/tutorials/blob/master/parent-boot-2/pom.xml
https://github.com/eugenp/tutorials/blob/master/spring-cloud/pom.xml
https://github.com/eugenp/tutorials/blob/master/spring-cloud/spring-cloud-eureka/spring-cloud-eureka-feign-client/pom.xml

<version.chorke.spring.cloud>2021.0.0</version.chorke.spring.cloud>
<version.chorke.spring.boot>2.6.3</version.chorke.spring.boot>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-dependencies</artifactId>
    <version>${version.chorke.spring.cloud}</version>
    <scope>import</scope>
    <type>pom</type>
</dependency>

<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-openfeign</artifactId>
</dependency>

Export BPMN

package io.xpresscover.services.camunda

import org.springframework.scheduling.annotation.Scheduled
import org.springframework.stereotype.Service
import org.camunda.bpm.engine.RuntimeService
import org.camunda.bpm.engine.ProcessEngine
import org.slf4j.LoggerFactory
import java.io.BufferedReader

@Service
class ExportProcessModel(
    var runtimeService: RuntimeService,
    var processEngine: ProcessEngine
) {
    val log = LoggerFactory.getLogger(ExportProcessModel::class.java)

    @Scheduled(fixedDelay = 15000, initialDelay = 15000)
    fun export() {
        val mutableList = processEngine.getRepositoryService().createProcessDefinitionQuery().list()
        for (processDefinition in mutableList) {
            val inputStream = processEngine.getRepositoryService().getProcessModel(processDefinition.id)
            val bufferedReader = BufferedReader(inputStream.reader())
            var xml: String

            try {
                xml = bufferedReader.readText()
                log.info("Model: \n{}", xml)
            } finally {
                bufferedReader.close()
            }
        }
    }
}

Knowledge

sudo snap install docker
sudo apt  install docker-compose

fedora: alter config
sudo alternatives --config java
sudo alternatives --config javac

debian: alter config
sudo update-alternatives --config java
sudo update-alternatives --config javac

rm -rf $HOME/.m2/repository/org/jetbrains/
rm -rf $HOME/.m2/repository/org/apache/tomcat/embed/tomcat-embed-core/

camunda: download bpmn
processEngine().getRepositoryService().createProcessDefinitionQuery().list();
processEngine().getRepositoryService().getProcessModel("someID");

docker login hub.chorke.org -u academia -p sadaqah!
docker pull camunda/camunda-bpm-platform:run-latest
docker run -d --name camunda -p 8080:8080 camunda/camunda-bpm-platform:run-latest

References

Camunda Invoking a Java Class from a BPMN Camunda Invoke an EJB from a BPMN Camunda Install a Template Engine Download Camunda Modeler Download Camunda BPM Camunda Apache Maven Camunda Quick Start Download Camunda Docker Compose Docker	Camunda BPM Apache Camel Integration Camunda BPM Apache Camel Extension Camunda Embedding the DMN Engine Camunda Spin Dataformat Reference Camunda Spring Boot Integration Camunda Spring Eventing Bridge Camunda Handling JSON Camunda Handling XML Camunda Scripting Form.IO	PostgreSQL MapStruct Liquibase Keycloak Lombok MyBatis WildFly Locale Java JPA
Camunda configure the Full Distribution for Tomcat Camunda configure the Full Distribution for Wildfly Camunda Process Engine Configuration Camunda Setup a Spring Boot Project Camunda Standalone Webapplication Spring Boot Project With Camunda Camunda Engine Properties Camunda Docker Container Browse Camunda Artifact Camunda BPM Initializer	MapStruct with Spring Boot (Kotlin) painlessly Mixing a Java and Kotlin in the Same Project Create a Java and Kotlin Project with Maven Camunda Quarkus Extension Configuration Install Apache Tomcat 8 on Ubuntu 16.04 Fixing WSL2 Local Domain Issue Camunda Quarkus Integration BPMN 2.0 Symbol Reference Mustache with Spring Boot ASCII Art:Chorke Academia	Spring Boot Rest Service Forward/Reverse Proxy Java 11 illegal reflection access by jaxb-impl Custom Location for bpm-platform.xml Reverse Proxy Service in Spring Boot Disable Spring boot Security Proxies With RestTemplate jsoup Selector Syntax jsoup Class Selector Netflix Eureka Zuul
Camunda download all process definitions as bpmn Camunda deploy a bpmn & start process using rest Camunda Spring Boot for the External Task Client Camunda Cockpit Deployment View Single Line Python Webserver Camunda Process Versioning Camunda Rest Deployment adoptopenjdk/openjdk11 Best CSV Escape