kf env

Name

kf env - Print information about an App’s environment variables.

Synopsis

kf env APP_NAME [flags]

Description

The env command gets the names and values of developer managed environment variables for an App.

Environment variables are evaluated in the following order with later values overriding earlier ones with the same name:

1. Space (set by administrators)
2. App (set by developers)
3. System (set by Kf)

Environment variables containing variable substitution “$(…)” are replaced at runtime by Kubernetes. Kf provides the following runtime environment variables:

• CF_INSTANCE_ADDR: The cluster-visible IP:PORT of the App instance.
• CF_INSTANCE_GUID: The UUID of the App instance.
• INSTANCE_GUID: Alias of CF_INSTANCE_GUID
• CF_INSTANCE_INDEX: The index number of the App instance, this will ALWAYS be 0.
• INSTANCE_INDEX: Alias of CF_INSTANCE_INDEX
• CF_INSTANCE_IP: The cluster-visible IP of the App instance.
• CF_INSTANCE_INTERNAL_IP: Alias of CF_INSTANCE_IP
• VCAP_APP_HOST: Alias of CF_INSTANCE_IP
• CF_INSTANCE_PORT: The cluster-visible port of the App instance. In Kf this is the same as PORT.
• DATABASE_URL: The first URI found in a VCAP_SERVICES credential.
• DISK_LIMIT: The maximum amount of disk storage in MB the App can use.
• LANG: Required by buildpacks to ensure consistent script load order.
• MEMORY_LIMIT: The maximum amount of memory the App can consume.
• MEMORY_LIMIT_IN_MB: The maximum amount of memory in MB the App can consume.
• PORT: The port the App should listen on for requests.
• VCAP_APP_PORT: Alias of PORT
• VCAP_APPLICATION: A JSON structure containing app metadata.
• VCAP_SERVICES: A JSON structure specifying bound services.

Examples

kf env myapp

Flags

-h, --help

help for env

Inherited flags

These flags are inherited from parent commands.

--as=string

Username to impersonate for the operation.

--as-group=strings

Group to impersonate for the operation. Include this flag multiple times to specify multiple groups.

--config=string

Path to the Kf config file to use for CLI requests.

--kubeconfig=string

Path to the kubeconfig file to use for CLI requests.

--log-http

Log HTTP requests to standard error.

--space=string

Space to run the command against. This flag overrides the currently targeted Space.