IBM Cloud Functions runtime for nodejs

• The runtime provides nodejs v16 with a set of npm packages see nodejs16/CHANGELOG.md
• The runtime provides nodejs v20 with a set of npm packages see nodejs20/CHANGELOG.md

The runtime provides the following npm packages for IBM Cloud:

• IBM DB2/DashDB and IBM Informix ibm_db
• IBM Cloudant @cloudant/cloudant
• IBM Watson Cloud watson-developer-cloud
• IBM Cloud Object Storage ibm-cos-sdk

How to use as a docker Action

To use as a docker action

ibmcloud wsk action update myAction myAction.js --docker ibmfunctions/action-nodejs-ibm-v16

This works on any deployment of Apache OpenWhisk or IBM Cloud Functions

Future: IBM Cloud Functions (based on Apache OpenWhisk)

To use as a nodejs kind action

ibmcloud wsk action update myAction myAction --kind nodejs:16

Tip: Not available yet in the IBM Cloud

Working with the local git repo

Prerequisite: Export OPENWHISK_HOME to point to your incubator/openwhisk cloned directory.

To build the nodejs:16 runtime:

./gradlew nodejs16:distDocker

This will produce the image whisk/action-nodejs-ibm-v16

Build and Push image

docker login
./gradlew nodejs16:distDocker -PdockerImagePrefix=$prefix-user -PdockerRegistry=docker.io

Deploy OpenWhisk using ansible environment that adds the new king nodejs:16 Assuming you have OpenWhisk already deploy localy and OPENWHISK_HOME pointing to root directory of OpenWhisk core repository.

Set ROOTDIR to the root directory of this repository.

Redeploy OpenWhisk

cd $OPENWHISK_HOME/ansible
ANSIBLE_CMD="ansible-playbook -i ${ROOTDIR}/ansible/environments/local"
$ANSIBLE_CMD setup.yml
$ANSIBLE_CMD couchdb.yml
$ANSIBLE_CMD initdb.yml
$ANSIBLE_CMD wipe.yml
$ANSIBLE_CMD openwhisk.yml

To use as docker action push to your own dockerhub account

docker tag whisk/action-nodejs-ibm-v16 $user_prefix/action-nodejs-ibm-v16
docker push $user_prefix/action-nodejs-ibm-v16

Then create the action using your the image from dockerhub

wsk action update myAction myAction.js --docker $user_prefix/action-nodejs-ibm-v16

The $user_prefix is usually your dockerhub user id.

Testing

Install dependencies from the root directory on $OPENWHISK_HOME repository

./gradlew install

Using IntelliJ:

• Import project as gradle project.
• Make sure working directory is root of the project/repo

Using Gradle

To run all tests: ./gradlew tests:test this include tests depending on credentials

To run all tests except those which do not rely on credentials ./gradlew tests:testWithoutCredentials

To run a single test-class: ./gradlew tests:test --tests <SomeGradleTestFilter>

For example, in order to execute the tests in /tests/src/test/scala/actionContainers/IBMNodeJSActionDB2Tests.scala, run: ./gradlew tests:test --tests *IBMNodeJsActionDB2Tests

Note: If you're running all tests locally with credentials like ./gradlew tests:test or ./gradlew tests:test --tests *CredentialsIBMNodeJsActionWatsonTests you need to set up a tests/credentials.json file containing Watson credentials in the format of:

{
  "language_translation":[
    {
      "credentials": {
        "url": "",
        "apikey": ""
      }
    }
  ],
  "cloudantNoSQLDB":[
    {
      "credentials": {
        "url": "",
        "host": "",
        "port": "" ,
        "password": "",
        "username": ""
      }
    }
  ],
  "dashDB":[
      {
        "credentials": {
          "ssldsn": "DATABASE=BLUDB;HOSTNAME=<hostname_value>;PORT=50001;PROTOCOL=TCPIP;UID=<username_value>;PWD=<password_value>;Security=SSL;"
        }
      }
  ],
  "cloud-object-storage":[
      {
        "credentials": {
          "resource_instance_id": "",
          "apikey": ""
        }
      }
  ],

}

Then update the whisk.properties file located in the directory $OPENWHISK_HOME, using the variable vcap.services.file

Maintenance Tasks

Updating Node.js 16 runtime

• Get the version of the latest tag ibm image

  VERSION=$(git tag | grep 16@ | tail -2 | head -1 | awk -F"@" '{print $2 }')

• Check the version of nodejs on the latest ibm image released

  docker run --rm -it ibmfunctions/action-nodejs-v16:$VERSION sh -c "node -v"

• Check if there is a new version of the Node.js LTS 16.

  nvm ls-remote | grep v16.

  • If there is a new version update the OpenWhisk Node.js 16 Dockerfile and submit PR.
  • After PR is merged wait for Travis CI to build and push a new tag image for openwhisk/action-nodejs-v16
  • Update the ibm image nodejs16/Dockerfile FROM usign the new upstream tag
• Check if there are new npm packages available
  • Use the latest released image to check the outdated npm packages

    docker run --rm -it ibmfunctions/action-nodejs-v16:$VERSION sh -c "cd / && npm outdated"

  • Update nodejs16/package.json
  • Update nodejs16/CHANGELOG.md

Pushing new versions for runtimes

• After the PR is merged and the master pass Travis CI, checkout master.
• Create tag for each runtime and push upstream

  git tag 16@<new version>
  git push upstream 16@<new version>

• After the image is deployed to production update the latest tag for each runtime.

  git tag 16@latest -f
  git push upstream 16@latest -f

License

Apache 2.0