Camunda

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Revision as of 06:03, 25 April 2022 by Shahed (talk | contribs)
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sudo wget -c https://downloads.camunda.cloud/release/camunda-modeler/5.0.0/\
camunda-modeler-5.0.0-linux-x64.tar.gz -P /opt/ide/

sudo tar -xvzf /opt/ide/camunda-modeler-5.0.0-linux-x64.tar.gz -C /opt/ide/
sudo rm -rf    /opt/ide/camunda-modeler-5.0.0-linux-x64.tar.gz
sudo su

cat << \EOF >> /usr/share/applications/CamundaModeler.desktop
[Desktop Entry]
Name=Camunda Modeler 5
Comment=SpringSource Tool Suite 4
Exec=/opt/ide/camunda-modeler-5.0.0-linux-x64/camunda-modeler
Icon=/opt/ide/camunda-modeler-5.0.0-linux-x64/camunda-modeler.svg
StartupNotify=true
Terminal=false
Type=Application
Keywords=Camunda,Modeler,BPMN,IDE,Development
Categories=Development;IDE;BPMN;
EOF

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");

sudo update-alternatives --remove-all camunda-modeler

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

docker tag academia-bpmn:latest reg.chorke.org/academia-bpmn:latest
docker push reg.chorke.org/academia-bpmn:latest
docker rmi reg.chorke.org/academia-bpmn:latest

docker pull hub.chorke.org/academia-bpmn:latest
docker rmi hub.chorke.org/academia-bpmn:latest

References

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