How to receive environment variables in my bpmn process

Camunda 8 Topics
1

I am using a self managed environment to run my camunda processes, in the docker zeebe environment i have specified a variable such as:

services:

  zeebe: # https://docs.camunda.io/docs/self-managed/platform-deployment/docker/#zeebe
    image: camunda/zeebe:${CAMUNDA_PLATFORM_VERSION}
    container_name: zeebe
    ports:
      - "26500:26500"
      - "9600:9600"
    environment: # https://docs.camunda.io/docs/self-managed/zeebe-deployment/configuration/environment-variables/
      - ZEEBE_BROKER_GATEWAY_SECURITY_AUTHENTICATION_MODE=${ZEEBE_AUTHENTICATION_MODE}
      - ZEEBE_BROKER_GATEWAY_SECURITY_AUTHENTICATION_IDENTITY_ISSUERBACKENDURL=http://keycloak:8080/auth/realms/camunda-platform
      - ZEEBE_BROKER_GATEWAY_SECURITY_AUTHENTICATION_IDENTITY_AUDIENCE=zeebe-api
      - ZEEBE_BROKER_EXPORTERS_ELASTICSEARCH_CLASSNAME=io.camunda.zeebe.exporter.ElasticsearchExporter
      - ZEEBE_BROKER_EXPORTERS_ELASTICSEARCH_ARGS_URL=http://elasticsearch:9200
      # default is 1000, see here: https://github.com/camunda/zeebe/blob/6600d0bea65376edd1de5860fb8ce910660e6f49/exporters/elasticsearch-exporter/src/main/java/io/camunda/zeebe/exporter/ElasticsearchExporterConfiguration.java#L259
      - ZEEBE_BROKER_EXPORTERS_ELASTICSEARCH_ARGS_BULK_SIZE=1
      # allow running with low disk space
      - ZEEBE_BROKER_DATA_DISKUSAGECOMMANDWATERMARK=0.998
      - ZEEBE_BROKER_DATA_DISKUSAGEREPLICATIONWATERMARK=0.999
      - "JAVA_TOOL_OPTIONS=-Xms512m -Xmx512m"
      - TMF_URL=${TMF_URL}
    restart: always
    healthcheck:
      test: [ "CMD-SHELL", "timeout 10s bash -c ':> /dev/tcp/127.0.0.1/9600' || exit 1" ]
      interval: 30s
      timeout: 5s
      retries: 5
      start_period: 30s
    volumes:
      - zeebe:/usr/local/zeebe/data
    networks:
      - camunda-platform
    depends_on:
      - elasticsearch
      - identity

over here i have declared a new environment variable as: TMF_URL, i would like to retrieve this env value in my bpmn process, what is the correct way to do so. Thanks!

2

Hi @Altmash_Siddique - environment variables are not available within your process in that way. There are a few ways to get variable data into a process:

  1. Use secrets
  2. Pass variables when starting a process via the API
  3. Use different start events to pass the data
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