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Delegate environment variables

The following environment variables are available for use in the delegate manifest. Some of these variables are included in the YAML by default; you can specify others based on use case.

ACCOUNT_ID​

The Harness account Id of the account with which this delegate registers.

This value is automatically added to the delegate configuration file (the application manifest of a Kubernetes delegate) when you add the delegate. 

- name: ACCOUNT_ID
  value: H5W8iol5TNWc4G9h5A2MXg

ACCOUNT_SECRET​

The Harness account token that is used to register the delegate.

- name: ACCOUNT_SECRET
  value: d239xx88bf7xxxxxxx836ea

CDN_URL​

The CDN URL for delegate versions. 

- name: CDN_URL
  value: https://app.harness.io

DELEGATE_CHECK_LOCATION​

The storage location that hosts published versions of the delegate. 

- name: DELEGATE_CHECK_LOCATION
  value: delegateprod.txt

DELEGATE_DESCRIPTION​

A text description of the delegate. The description is added to the delegate before registration, in Harness Manager or in YAML. This value is displayed on the delegate details page in Harness Manager. 

- name: DELEGATE_DESCRIPTION
  value: ""

DELEGATE_NAME​

The name of the delegate. This is the name that identifies a registered delegate in Harness.

This value is not specified when delegate creation is automated. Instead, a script is used to duplicate the delegate YAML file and add a unique name to the DELEGATE_NAME environment variable for each delegate to be registered. See Automate Delegate Installation. 

- name: DELEGATE_NAME
  value: qa

DELEGATE_NAMESPACE​

The namespace for the delegate is taken from the StatefulSet namespace. 

- name: DELEGATE_NAMESPACE
  valueFrom:
    fieldRef:
      fieldPath: metadata.namespace

DELEGATE_ORG_IDENTIFIER​

The Harness organization Identifier in which the delegate registers.

Delegates at the account level do not have a value for this variable. 

- name: DELEGATE_ORG_IDENTIFIER
  value: "engg"

DELEGATE_PROJECT_IDENTIFIER​

The Harness project Identifier in which the delegate registers.

Delegates at the account or organization level do not have a value for this variable.

- name: DELEGATE_PROJECT_IDENTIFIER
  value: "myproject"

DELEGATE_STORAGE_URL​

The URL location at which published delegate JAR files are stored.

- name: DELEGATE_STORAGE_URL
  value: https://app.harness.io

DELEGATE_TAGS​

Delegate tags are descriptors that are added to the delegate before the registration process, in Harness Manager or in YAML. Harness generates tags based on the delegate name; you can add others. You can specify multiple tags in YAML as a comma-separated list.

Tags are displayed on the delegate details page in Harness Manager. See Tags Reference and Select Delegates with Tags. 

- name: DELEGATE_TAGS
  value: ""
  
- name: DELEGATE_TAGS
  value: has_jq, has_gcloud

DELEGATE_TASK_LIMIT​

The maximum number of tasks the delegate can concurrently perform.

Delegate operations are categorized as different types of tasks.

- name: DELEGATE_TASK_LIMIT
  value: "50"

DELEGATE_TYPE​

The type of the delegate.

- name: DELEGATE_TYPE
  value: "KUBERNETES"

DEPLOY_MODE​

The mode of deployment, for example, Kubernetes or Docker. 

- name: DEPLOY_MODE
  value: KUBERNETES

GRPC_SERVICE_ENABLED, GRPC_SERVICE_CONNECTOR_PORT​

By default, the delegate requires HTTP/2 for gRPC (remote procedure calls) to be enabled for connectivity between the delegate and Harness Manager. 

- name: GRPC_SERVICE_ENABLED
  value: "true"
- name: GRPC_SERVICE_CONNECTOR_PORT
  value: "8080"`

HELM_DESIRED_VERSION​

By default, Harness Delegates are installed with and use Helm 3. You can set the Helm version in the delegate YAML file using the HELM\_DESIRED\_VERSION environment property. Include the "v" with the version. For example, HELM\_DESIRED\_VERSION: v2.13.0. 

- name: HELM_DESIRED_VERSION
  value: ""

INIT_SCRIPT​

Used to specify a script that runs when the delegate is initialized. You can use this environment variable to run scripts on the delegate but this is not a best practice. Delegate initialization should be built into the image; not determined on startup.

- name: INIT_SCRIPT
  value: |-echo install wget 
  apt-get install wget
  echo wget installed

JAVA_OPTS​

Use the JAVA_OPTS environment variable to add or override JVM parameters. The delegate accepts the following JVM options.

- name: JAVA_OPTS
  value: "-XX:+UnlockExperimentalVMOptions -XX:+UseCGroupMemoryLimitForHeap -XX:MaxRAMFraction=2 -Xms64M"

JRE_VERSION​

The Java Runtime Environment (JRE) version that the delegate uses.

- name: JRE_VERSION
  value: 1.8.0_242

LOG_STREAMING_SERVICE_URL​

Use this variable to specify the endpoint for your log service in Harness NextGen. This variable is not used in Harness FirstGen.

- name: LOG_STREAMING_SERVICE_URL
  value: "YOUR_MANAGER_ENDPOINT/log-service/"

MANAGER_HOST_AND_PORT​

The Harness SaaS manager URL. The specification of HTTPS in the URL indicates the use of port 443. 

- name: MANAGER_HOST_AND_PORT
  value: https://app.harness.io

NEXT_GEN​

Whether the delegate is registers in Harness NextGen or FirstGen. A value of true indicates that the delegate registers in Harness NextGen; a value of false indicates that the delegate registers in FirstGen. 

- name: NEXT_GEN
  value: "true"

POLL_FOR_TASKS​

Enables or disables polling for delegate tasks.By default, the Delegate uses Secure WebSocket (WSS) for tasks. If the PROXY\_\* settings are used and the proxy or some intermediary does not allow WSS, then set POLL\_FOR\_TASKS to true to enable polling. 

- name: POLL_FOR_TASKS
  value: "false"

PROXY_*​

You can use delegate proxy settings to change how the delegate connects to Harness Manager.

The secretKeyRef values are named based on delegate name. 

- name: PROXY_HOST
  value: "" 
- name: PROXY_PORT
  value: ""   
- name: PROXY_SCHEME
  value: "" 
- name: NO_PROXY
  value: ""
- name: PROXY_MANAGER
  value: "true"  
- name: PROXY_USER
  valueFrom: 
    secretKeyRef:
      name: mydel-proxy
      key: PROXY_USER 
- name: PROXY_PASSWORD
  valueFrom:
    secretKeyRef:
      name: mydel-proxy
      key: PROXY_PASSWORD

REMOTE_WATCHER_URL_CDN​

The CDN URL for Watcher builds. 

- name: REMOTE_WATCHER_URL_CDN
  value: https://app.harness.io/public/shared/watchers/builds

USE_CDN​

Makes the delegate use a CDN for new versions. 

- name: USE_CDN
  value: "true"

VERSION_CHECK_DISABLED​

By default, the delegate always checks for new versions, obtaining the information from the Watcher. 

- name: VERSION_CHECK_DISABLED
  value: "false"

WATCHER_CHECK_LOCATION​

The delegate version location that the Watcher checks for.

- name: WATCHER_CHECK_LOCATION
  value: current.version`

WATCHER_STORAGE_URL​

The URL for the Watcher versions. See Delegate Installation Overview. 

- name: WATCHER_STORAGE_URL
  value: https://app.harness.io/public/prod/premium/watchers