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A multi-cloud deployment tool for serverless functions running on AWS Lambda, Adobe I/O Runtime, Azure Functions, and Google Cloud Functions. Write once, run everywhere.

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# Helix Deploy
> A multi-cloud deployment tool for serverless and edge-compute functions running on AWS Lambda, Adobe I/O Runtime, Azure Functions, Google Cloud Functions, Cloudflare Workers, and Fastly Compute@Edge. Write once, run everywhere.

## Status
[![GitHub license](https://img.shields.io/github/license/adobe/helix-deploy.svg)](https://github.com/adobe/helix-deploy/blob/main/LICENSE.txt)
[![GitHub issues](https://img.shields.io/github/issues/adobe/helix-deploy.svg)](https://github.com/adobe/helix-deploy/issues)
![GitHub Actions Workflow Status](https://img.shields.io/github/actions/workflow/status/adobe/helix-deploy/main.yaml)
[![codecov](https://img.shields.io/codecov/c/github/adobe/helix-deploy.svg)](https://codecov.io/gh/adobe/helix-deploy)

## Setup

1. Add this wrapper as dev dependency:
    ```console
    # Add OpenWhisk wrapper as dependency 
    npm add helix-deploy
    ```

2. add a build script to your package.json:
    ```json
    "scripts": {
      "build": "./node_modules/.bin/hedy"
    }
    ```

3. Build the OpenWhisk action
    ```console
    $ npm run build
    ...
    Created action: dist/my-example.zip.
    ```
4. Deploy the OpenWhisk action
    ```console
    $ wsk action update ....
    ```

The deploy parameters can be specifies in the CLI via `-p`. See below.

## Developing

1. Install dependencies once with `npm install`.
2. Run the linter via `npm run lint`.
3. Run the unit-test suite with `npm test`. The script runs `c8 mocha -i -g Integration`, so tests explicitly tagged as "Integration" are skipped.

## CLI

The command line interface `hedy` can either be invoked via `./node_modules/.bin/hedy`.
you can also use npx: `npx hedy` or install it globally `npm install -g helix-deploy`.

```console
$ hedy --help
General Options
  -v, --verbose  [boolean] [default: false]
      --directory  Project directory  [string] [default: "."]
      --version    Show version number  [boolean]

Operation Options
      --help            Show help  [boolean]
      --build           Build the deployment package  [boolean] [default: true]
      --deploy          Automatically deploy to specified targets  [boolean] [default: false]
      --test            Invoke action after deployment. Can be relative url or "true"  [string]
      --test-bundle     Invoke bundle after build. Can be relative url or "true". Defaults to the same as --test  [string]
      --update-package  Create or update package with params.  [boolean] [default: false]
  -l, --version-link    Create symlinks (sequences) after deployment. "major" and "minor" will create respective version links  [array]
      --delete          Delete the action from OpenWhisk. Implies no-build  [boolean] [default: false]
      --plugin          Specify bundler or deploy plugins.  [array] [default: []]

Build Options
      --minify                Minify the final bundle  [boolean] [default: false]
  -s, --static                Includes a static file into the archive  [array] [default: []]
      --entryFile             Specifies the entry file (the universal function).  [default: "src/index.js"]
      --externals             Defines the externals for the bundler (these dependencies will not be bundled).  [array] [default: []]
      --edge-externals        Defines the externals for the edge bundler (these dependencies will not be bundled for Cloudflare or Fastly).  [array] [default: []]
      --serverless-externals  Defines the externals for the serverless bundler (these dependencies will not be bundled for AWS Lambda or Google Cloud Functions).  [array] [default: []]
  -m, --modules               Include a node_module as is.  [array] [default: []]
      --adapterFile           Specifies the adapter file (the exported module).
      --esm                   Produce EcmaScript Module (experimental, disables edge arch)  [boolean] [default: false]
      --bundler
      --dist-directory        Specifies the dist (output) directory  [default: "dist"]

Deploy Options
      --target             Select target(s) for test, deploy, update-package actions (wsk,aws,google,auto)  [array] [default: ["auto"]]
      --hints, --no-hints  Show additional hints for deployment  [boolean] [default: true]

Test Options
      --target        Select target(s) for test, deploy, update-package actions (wsk,aws,google,auto)  [array] [default: ["auto"]]
      --test-params   Invoke openwhisk action after deployment with the given params.  [array] [default: []]
      --test-url      Test url to use after deployment, in case --test is not an url.  [string]
      --test-headers  Test headers to send in test requests.  [array] [default: []]

Link Options
      --target       Select target(s) for test, deploy, update-package actions (wsk,aws,google,auto)  [array] [default: ["auto"]]
      --linkPackage  Package name for version links  [string]

Update Package Options
      --package.params       OpenWhisk package params.  [array] [default: []]
      --package.params-file  OpenWhisk package params file.  [array] [default: []]

Cleanup Old Deployments: automatically delete redundant versions older than specified.
  Use a pattern like 7d or 1m to specify time frames.
  Use a simple number like --cleanup-ci=5 to retain the last five CI builds
      --cleanup-ci     Automatically delete redundant CI versions
      --cleanup-patch  Automatically delete redundant patch versions. At least one patch version for each minor version will be kept.
      --cleanup-minor  Automatically delete redundant minor versions. At least one minor version for each major version will be kept.
      --cleanup-major  Automatically delete redundant major versions.

General Action Options
      --name          Action name. Can be prefixed with package.
      --package.name  Action package name.  [string]
      --node-version  Specifies the node.js version to use in the serverless runtime  [default: "18"]
  -p, --params        Include the given action param. can be json or env.  [array] [default: []]
  -f, --params-file   Include the given action param from a file; can be json or env.  [array] [default: []]
      --updated-by    user that updated the action or sequence.  [string]
      --updated-at    unix timestamp when the action or sequence was updated (defaults to the current time).  [number] [default: 1719567952628]
      --web-secure    Annotates the action with require-whisk-auth. leave empty to generate random token.  [string]
  -t, --timeout       the timeout limit in milliseconds after which the action is terminated  [default: 60000]
      --pkgVersion    Version use in the embedded package.json.
      --memory        the maximum memory LIMIT in MB for the action
      --concurrency   the maximum intra-container concurrent activation LIMIT for the action

OpenWhisk Action Options
      --namespace       OpenWhisk namespace. Needs to match the namespace provided with the openwhisk credentials.
      --package.shared  OpenWhisk package scope.  [boolean] [default: false]

AWS Deployment Options
      --aws-region                the AWS region to deploy lambda functions to  [string] [default: ""]
      --aws-api                   the AWS API Gateway name. (id, "auto" or "create")  [string] [default: "auto"]
      --aws-role                  the AWS role ARN to execute lambda functions with  [string] [default: ""]
      --aws-cleanup-buckets
      --aws-cleanup-integrations  Cleans up unused integrations  [boolean] [default: false]
      --aws-cleanup-versions      Cleans up unused versions  [boolean] [default: false]
      --aws-create-routes         Create routes for function (usually not needed due to proxy function).  [boolean] [default: false]
      --aws-link-routes           Create or update routes, integrations, permissions, and authorizers when linking versions.  [boolean] [default: true]
      --aws-create-authorizer     Creates API Gateway authorizer using lambda authorization with this function and the specified name. The string can contain placeholders (note that all dots ('.') are replaced with underscores. Example: "helix-authorizer_${version}".  [string]
      --aws-attach-authorizer     Attach specified authorizer to routes during linking.  [string]
      --aws-lambda-format         Format to use to create lambda functions (note that all dots ('.') will be replaced with underscores.  [string] [default: "${packageName}--${baseName}"]
      --aws-parameter-manager     Manager to use for storing package params. (either "secret" for Secrets Manager or "system" for System Manager)  [array] [default: ["secret"]]
      --aws-deploy-template
      --aws-arch                  deployment architecture. either 'x86_64' or 'arm64'  [string] [default: "x86_64"]
      --aws-update-secrets        Uploads the function specific secrets with the params. defaults to /helix-deploy/{pkg}/{name}  [string]
      --aws-deploy-secrets        Name of a secret in the target account (in AWS Secrets Manager) holding the HLX_AWS_* environment variables to use for the deployment.  [string]
      --aws-deploy-bucket         Name of the deploy S3 bucket to use (default is helix-deploy-bucket-{accountId})  [string] [default: ""]
      --aws-identity-source       Identity source to used when creating the authorizer  [array] [default: ["$request.header.Authorization"]]
      --aws-log-format            The lambda log format. Can be either "JSON" or "Text".  [string]
      --aws-layers                List of layers ARNs to attach to the lambda function.  [array]
      --aws-tracing-mode          The lambda tracing mode. Can be either "Active" or "PassThrough".  [string]
      --aws-extra-permissions     A list of additional invoke permissions to add to the lambda function in the form <SourceARN>@<Principal>. Optionally, you can use <SourceARN>@<Principal>:<Alias> if you want to scope the permission to a specific alias.  [array]
      --aws-tags                  A list of additional tags to attach to the lambda function in the form key=value. To remove a tag, use key= (i.e. without a value).  [array]
      --aws-handler               Set custom lambda Handler. For example, set if an AWS layer provides another function entry point.  [string]
      --aws-ephemeral-storage     Size of the Lambda /tmp ephemeral storage in MB (512-10240).  [number] [default: 512]
      --aws-vpc-subnet-ids          List of VPC subnet IDs to attach the Lambda function to.  [array]
      --aws-vpc-security-group-ids  List of VPC security group IDs to attach the Lambda function to.  [array]

Google Deployment Options
      --google-project-id  the Google Cloud project to deploy to. Optional when the key file is a JSON file  [string] [default: ""]
      --google-key-file    full path to the a .json, .pem, or .p12 key downloaded from the Google Developers Console  [string] [default: ""]
      --google-email       the Google  account email address. Required when using a .pem or .p12 credential file  [string] [default: ""]

Options:
      --arch           Select archs(s) for bundles (node,edge).  [array] [default: ["node"]]
      --format         Action formats  [default: {"aws":"/${packageName}/${baseName}/${version}"}]
      --property       Additional properties that can be used in formats.  [default: {}]
      --package-token  Protects access to the gateway-stored package parameters with this token. leave empty to generate random token.  [string] [default: "2l8JumQIoX+SLQRc2eO2TUh1VO44/qh9KkL7VZO1T9k="]
      --google-region  the Google Cloud region to deploy in  [string] [default: ""]
```

With no arguments,the `hedy` just bundles your code into the respective `action.zip`:

### Automatically deploy to openwhisk

When given the `--deploy`, the `wskbot` will try to deploy it ot OpenWhisk using the settings from
`~/.wskprops`. Alternatively, you can also set the `WSK_NAMESPACE`, `WSK_AUTH`, `WSK_APIHOST` in your
environment or `.env` file.

```console
$ hedy --deploy --no-hints
ok: created action: dist/my-example.zip.
ok: updated action tripod/my-example
```

### Automatically _test_ the deployed action

In order to quickly test the deployed action, `hedy` can send a `GET` request to the action url.

```console
$ hedy --deploy --no-hints --test
ok: created action: dist/my-example.zip.
ok: updated action tripod/my-example
--: requesting: https://runtime.adobe.io/api/v1/web/tripod/default/my-example ...
ok: 200
```

the `--test` argument can be a relative url, in case the request should not be made against the root url, eg:

```console
$ hedy --deploy --no-hints --test=/ping
ok: created action: dist/my-example.zip.
ok: updated action tripod/my-example
--: requesting: https://runtime.adobe.io/api/v1/web/tripod/default/my-example/ping ...
ok: 200
```

### Including action parameters

Action parameters can be defined via `-p`, either as json on env string, or json or env file.

Examples:

```console
# specify as env string
hedy -p MY_TOKEN=1234 -p MY_PWD=foo

# specify as json string
hedy -p '{ "MY_TOKEN": 1234, "MY_PWD": "foo" }'

# specify as env file
hedy -f .env

# specify as json file
hedy -f params.json

# and a combination of the above
hedy -f .env -f params.json -p MY_TOKEN=123

# like in curl, you can include file contents with `@` (also works in .env or .json file)
hedy -p MY_TOKEN=@token.txt

```

### Specifying arguments in the `package.json`

Instead of passing all the arguments via command line, you can also specify them in the `package.json`
in the `hlx` object. eg:

```json
{
...
  "scripts": {
    "build": "./node_modules/.bin/hedy -v",
    "deploy": "./node_modules/.bin/hedy -v --deploy --test"
  },
  "hlx": {
    "name": "my-test-action",
    "params-file": [
      "secrets/secrets.env"
    ],
    "externals": [
      "fs-extra",
      "js-yaml",
      "dotenv",
      "bunyan",
      "bunyan-loggly",
      "bunyan-syslog",
      "bunyan-format"
    ],
    "docker": "adobe/probot-ow-nodejs8:latest"
  },
...
}
```

The config name changed to `hlx` in version `12.3`. The previous name `wsk` is still supported, but deprecated. If both are present, `hlx` will be used.

### Versioning your action

It can be helpful to version the action name, eg with the `@version` notation. So for example

```json
"hlx": {
  "name": "my-action@4.3.1"
}
```

In order to automatically use the version of the `package.json` use:

```json
"hlx": {
  "name": "my-action@${version}"
}
```

> **Note**: the version is internally taken from the `pkgVersion` variable, so it can be overridden with
 the `--pkgVersion` argument, in case it should be deployed differently.

### Environment Variable Interpolation in Arguments

In addition to the `${version}` token described above, arguments will be interpolated using environment variables where the variables exist. For example, given an environment variable named `PROBOT_DOCKER_VERSION` is set to `latest`, this configuration:

```json
{
...
  "hlx": {
    ...
    "docker": "adobe/probot-ow-nodejs8:${env.PROBOT_DOCKER_VERSION}"
  },
...
}
```

Will result in the materialized value of the `docker` argument to be set to `adobe/probot-ow-nodejs8:latest`.

#### Automatically create semantic versioning sequence actions

By using the `--version-link` (`-l`), the bulider can create action sequences _linking_ to the deployed version,
using the semantic versioning notation: `latest`, `major`, `minor`:

| Action Name | Specifier | Sequence Name |
|-------------|-----------|---------------|
| `foo@2.4.3` | `latest`  | `foo@latest`     |
| `foo@2.4.3` | `major`   | `foo@v2`         |
| `foo@2.4.3` | `minor`   | `foo@v2.4`       |

### Including static files

Adding static files, i.e. files that are not referenced from the `index.js` and detected by webpack,
can be done via the `-s` parameter. they are always put into the root directory of the archive.

Example:

```bash
# include an image
hedy -s logo.png
```

If the path points to a directory, it is recursively included.

The files of static files can also be specified in the `package.json` which allows specifying the
destination filename. eg:

```json
...
  "hlx": {
    ...
    "static": [
      "config.json",
      ["assets/logo.png", "static/icon.ong"],
      ["public/", "static/"],
    ]
  }
...
```

## Using Plugins

Helix deploy supports dynamic plugins that can be specified via the `--plugin` argument. The plugin
can export a `bundler` and/or `deployer` function. As an example, the following plugin can be used to
deploy to an edge compute platform: https://github.com/adobe/helix-deploy-plugin-edge

```console
hedy --plugin @adobe/helix-deploy-plugin-edge --deploy
```

## Using the development server

Testing an universal function can be done with the [development server](https://github.com/adobe/helix-universal-devserver).

Just create a `test/dev.js` file with:

```js
import { DevelopmentServer } from '@adobe/helix-universal-devserver';
import { main } from '../src/index.js';

async function run() {
  const devServer = await new DevelopmentServer(main).init();
  await devServer.start();
}

run().then(process.stdout).catch(process.stderr);
```

and run `node test/dev.js`.

for more information see https://github.com/adobe/helix-universal-devserver

## Notes

### Bundling

The action is created using webpack to create bundle for the sources and then creates a zip archive
with the bundle, a `package.json`, the private key files and the `.env`.

## Contributing

If you have suggestions for how these OpenWhisk Action Utilities could be improved, or want to report a bug, open an issue! We'd love all and any contributions.

For more, check out the [Contributing Guide](CONTRIBUTING.md).

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