The workers on demand chart

This chart deploys a configuration for DBOS master, this configuration contains the list of on demand workers and their tasks and some execution contexts. Execution contexts are essentially Kubernetes job templates, they allow to choose the resource limits for each task independently or any custom Kubernetes job configuration you need.

Read the 'on demand' workers section for more details. Here is an example of a 'values.yml' file you could use in the command below :

global:
  image:
    imageRegistry: product-dbos-prod-docker-group.decisionbrain.cloud/dbos
    imagePullSecrets:
    - product-dbos-prod-docker-group.decisionbrain.cloud
  labels:
    project: dbos
    businessUnit: my-business-unit

global:
  image:
    tag: "{{ .Chart.AppVersion }}"

image:
  imageRegistry: product-dbos-cplex-dev-docker-group.decisionbrain.cloud/dbos
  imagePullSecrets:
  - product-dbos-cplex-prod-docker-group.decisionbrain.cloud-secret
  - product-dbos-cplex-dev-docker-group.decisionbrain.cloud-secret
registration:
  failures:
    backoffLimit: 10
    activeDeadlineSeconds: 1800
hosts:
  masterUrl: http://dbos-master:8080
  rabbitmqHost: rabbitmq

defaultEnv:
  OPTIMSERVER_URL:
    value: "http://dbos-master.{{ .Release.Namespace }}.svc.cluster.local:8080/"
  SPRING_RABBITMQ_HOST:
    value: "rabbitmq.{{ .Release.Namespace }}.svc.cluster.local"

workers:
  cplexcpo:
    image: "product-dbos-cplex-dev-docker-group.decisionbrain.cloud/dbos/dbos-cplex-cpo-worker:{{ tpl .Values.global.image.tag $ }}"
    defaultExecutionContext: small
    tasks:
    - id: "CplexTask"
      executionContexts:
      - cplexcpoopl
      defaultExecutionContext: cplexcpoopl
    - id: "CpoTask"
      executionContexts:
      - cplexcpoopl
      defaultExecutionContext: cplexcpoopl
  opl:
    image: "product-dbos-cplex-dev-docker-group.decisionbrain.cloud/dbos/dbos-opl-worker:{{ tpl .Values.global.image.tag $ }}"
    defaultExecutionContext: small
    tasks:
    - id: "OplTask"
      executionContexts:
      - cplexcpoopl
      defaultExecutionContext: cplexcpoopl
executionContexts:
  templates:
    cplexcpoopl:
      enabled: true
      config:
        name: cplex-cpo-opl
        namespace: "cplex-wods"
        imagePullPolicy: Always
        activeDeadlineSeconds: 3600
        restartPolicy:
        node:
          tolerations:
          - effect: NoExecute
            key: k8s.scaleway.com/dedicated
            operator: Equal
            value: jobs
        resources:
          limits:
            cpu: 4000m
            memory: 8500Mi
          requests:
            cpu: 4000m
            memory: 8500Mi
      env:
        JAVA_TOOL_OPTIONS:
          value: -XX:+UseParallelGC -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10 -XX:GCTimeRatio=4
            -XX:AdaptiveSizePolicyWeight=90 -Xmx1g
        SPRING_RABBITMQ_USERNAME:
          valueFrom:
            secretKeyRef:
              key: rabbitmq-root-username
              name: "rabbitmq-{{ $.Release.Namespace }}"
        SPRING_RABBITMQ_PASSWORD:
          valueFrom:
            secretKeyRef:
              key: rabbitmq-root-password
              name: "rabbitmq-{{ $.Release.Namespace }}"
        OPTIMSERVER_JWT_JWTKEY:
          valueFrom:
            secretKeyRef:
              key: master-secret-jwtkey
              name: "dbos-master-{{ $.Release.Namespace }}"

This creates a ConfigMap with the name

• 'wod-register-request-(namespace)'

with the worker :

• product-dbos-cplex-prod-docker-group.decisionbrain.cloud/dbos/dbos-cplex-cpo-worker:4.4.0

and the execution contexts:

• small

• medium

Then the chart forces the DBOS master to load the ConfigMap. The chart assumes the DBOS master host is 'dbos-master' and listens at port 8080. If you want to change these default values, you can override them with the values.yaml file:

global:
...
urlRefresh: http://<my-other-host>:<my-other-port>
master:
  config:
    name: <my-other-host>

helm install dbos-workers-on-demand ./dbos-workers-on-demand -f values.yaml

helm install dbos-workers-on-demand decisionbrain/dbos-workers-on-demand --version 4.4.0 -f values.yaml

helm upgrade dbos-workers-on-demand ./dbos-workers-on-demand -f values.yaml

helm upgrade dbos-workers-on-demand decisionbrain/dbos-workers-on-demand --version 4.4.0 -f values.yaml