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COMMANDS.md

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Commands

The compose command compiles composition code to a portable JSON format. The deploy command deploys JSON-encoded compositions. These commands are intended as a minimal complement to the OpenWhisk CLI. The OpenWhisk CLI already has the capability to configure, invoke, and delete compositions since these are just OpenWhisk actions but lacks the capability to create composition actions. The compose and deploy commands bridge this gap. They make it possible to deploy compositions as part of the development cycle or in shell scripts. They do not replace the OpenWhisk CLI however as they do not duplicate existing OpenWhisk CLI capabilities.

Compose

compose

Usage:
  compose composition.js [flags]
Flags:
  --ast                  only output the ast for the composition
  --file                 write output to a file next to the input file
  --js                   output the conductor action code for the composition
  -o FILE                write output to FILE
  -v, --version          output the composer version
  --debug LIST           comma-separated list of debug flags (when using --js flag)

The compose command takes a JavaScript module that exports a composition object (for example demo.js) and compiles this object to a portable JSON format on the standard output or in file.

compose demo.js -o demo.json

If the --ast option is specified, the compose command only outputs a JSON representation of the Abstract Syntax Tree for the composition.

If the --js option is specified, the compose command outputs the conductor action code for the composition instead of the generated JSON.

If the -o option is used, the compose command outputs to the specified file.

If the --file option is specified, the compose command outputs to a file next to the input file with a .json or .conductor.js extension (if the --js option is specified).

Deploy

deploy

Usage:
  deploy composition composition.json [flags]
Flags:
  -a, --annotation KEY=VALUE        add KEY annotation with VALUE
  -A, --annotation-file KEY=FILE    add KEY annotation with FILE content
  --apihost HOST                    API HOST
  --apiversion VERSION              API VERSION
  --basic                           force basic authentication
  --bearer                          force bearer token authentication
  -i, --insecure                    bypass certificate checking
  --kind KIND                       the KIND of the conductor action runtime
  -l, --logsize LIMIT               the maximum log size LIMIT in MB for the conductor action (default 10)
  -m, --memory LIMIT                the maximum memory LIMIT in MB for the conductor action (default 256)
  -t, --timeout LIMIT               the timeout LIMIT in milliseconds for the conductor action (default 60000)
  -u, --auth KEY                    authorization KEY
  -v, --version                     output the composer version
  -w, --overwrite                   overwrite actions if already defined
  --debug LIST                      comma-separated list of debug flags

The deploy command deploys a JSON-encoded composition with the given name.

deploy demo demo.json -w

ok: created /_/authenticate,/_/success,/_/failure,/_/demo

The deploy command synthesizes and deploys a conductor action that implements the composition with the given name. It also deploys the composed actions for which definitions are provided as part of the composition.

The deploy command outputs the list of deployed actions or an error result. If an error occurs during deployment, the state of the various actions is unknown.

The -w option authorizes the deploy command to overwrite existing definitions. More precisely, it deletes the deployed actions before recreating them. As a result, default parameters, limits, and annotations on preexisting actions are lost.

The --logsize option specifies the maximum log size for the conductor action. The --memory option specifies the maximum memory for the conductor action. The --timeout option specifies the timeout for the conductor action.

The --kind option specifies the kind for the conductor action runtime. By default, the nodejs:default OpenWhisk runtime is used. The chosen runtime must be based on Node.js. Other Node.js runtimes may or may not be compatible with Composer.

Annotations

The deploy command implicitly annotates the deployed composition action with the required conductor annotations. Other annotations may be specified by means of the flags:

  -a, --annotation KEY=VALUE        add KEY annotation with VALUE
  -A, --annotation-file KEY=FILE    add KEY annotation with FILE content

OpenWhisk instance

Like the OpenWhisk CLI, the deploy command supports the following flags for specifying the OpenWhisk instance to use:

  --apihost HOST                    API HOST
  -i, --insecure                    bypass certificate checking
  -u, --auth KEY                    authorization KEY

In addition the deploy command supports the flags:

  --basic                           force basic authentication
  --bearer                          force bearer token authentication

If the --apihost flag is absent, the environment variable __OW_API_HOST is used in its place. If neither is available, the deploy command extracts the APIHOST key from the whisk property file.

The apiversion may be specified using the --apiversion flag, or, if absent, the APIVERSION property of the whisk property file. If both are absent, the default is assumed.

If the --insecure flag is set or the environment variable __OW_IGNORE_CERTS is set to true, the deploy command ignores SSL certificates validation failures.

The default target namespace is the value of environment variable __OW_NAMESPACE if defined. If not, it is the value of the NAMESPACE property in the whisk property file if present. Otherwise, the default _ value is used.

If the --basic flag is set, the deploy command uses basic authentication. If the --bearer flag is set, the deploy command uses bearer token authentication. If neither flag is set, the deploy command uses basic authentication only if the default target namespace is _. Setting both flags is an error.

For basic authentication, the authentication key is obtained from the --auth flag. If the --auth flag is absent, the environment variable __OW_API_KEY is used in its place. If neither is available, the deploy command extracts the AUTH key from the whisk property file.

For bearer token authentication, the token is either the value of the environment variable __OW_APIGW_TOKEN if defined or the value of property APIGW_ACCESS_TOKEN in the whisk property file.

The default path for the whisk property file is $HOME/.wskprops. It can be altered by setting the WSK_CONFIG_FILE environment variable.

Debug flag

The --debug flag takes a comma-separated list of debugging options.

The needle option activates needle verbose logging.

The needle<defaults> option enables overriding needle default parameters. The specified defaults must be be a json dictionary, as for example in:

deploy demo demo.json --debug 'needle<{"connection":"keep-alive","open_timeout":60000}>'