remove support for Node.js v16 (EOL 9/11/23). (#241)

Author: dgrove-oss

.github/workflows/ci.yaml

@@ -88,8 +88,6 @@ jobs:
         working-directory: runtime
         run: |
           SHORT_COMMIT=$(git rev-parse --short "$GITHUB_SHA")
-          ./gradlew :core:nodejs16Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly
-          ./gradlew :core:nodejs16Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=$SHORT_COMMIT
           ./gradlew :core:nodejs18Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly
           ./gradlew :core:nodejs18Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=$SHORT_COMMIT
           ./gradlew :core:nodejs20Action:distDocker -PdockerRegistry=docker.io -PdockerImagePrefix=openwhisk -PdockerImageTag=nightly

README.md

@@ -26,7 +26,6 @@ This repository contains sources files needed to build the Node.js runtimes for
 
 The following Node.js runtime versions (with kind & image labels) are generated by the build system:
 
-- Node.js 16 (`nodejs:16` & `openwhisk/action-nodejs-v16`)
 - Node.js 18 (`nodejs:18` & `openwhisk/action-nodejs-v18`)
 - Node.js 20 (`nodejs:20` & `openwhisk/action-nodejs-v20`)
 
@@ -38,24 +37,23 @@ This README documents the build, customisation and testing of these runtime imag
 
 If the deployment of Apache OpenWhisk includes these images in the runtime manifest, use the `--kind` parameter to select the Node.js runtime version.
 
-### Node.js v16
+### Node.js v20
 
 ```
-wsk action update myAction myAction.js --kind nodejs:16
+wsk action update myAction myAction.js --kind nodejs:20
 ```
 
 ## Images
 
 All the runtime images are published by the project to Docker Hub @ [https://hub.docker.com/u/openwhisk](https://hub.docker.com/u/openwhisk)
 
-- [https://hub.docker.com/r/openwhisk/action-nodejs-v16](https://hub.docker.com/r/openwhisk/action-nodejs-v16)
 - [https://hub.docker.com/r/openwhisk/action-nodejs-v18](https://hub.docker.com/r/openwhisk/action-nodejs-v18)
 - [https://hub.docker.com/r/openwhisk/action-nodejs-v20](https://hub.docker.com/r/openwhisk/action-nodejs-v20)
 
 These images can be used to execute Node.js actions on any deployment of Apache OpenWhisk, even those without those images defined the in runtime manifest, using the `--docker` action parameter.
 
 ```
-wsk action update myAction myAction.js --docker openwhisk/action-nodejs-v16
+wsk action update myAction myAction.js --docker openwhisk/action-nodejs-v20
 ```
 
 If you build a custom version of the images, pushing those an external Docker Hub repository will allow you to use those on the Apache OpenWhisk deployment.
@@ -77,11 +75,11 @@ The `core/nodejsActionBase` folder contains the Node.js app server used to imple
 - Run the `distDocker` command to generate local Docker images for the different runtime versions.
 
 ```
-./gradlew core:nodejs16Action:distDocker
 ./gradlew core:nodejs18Action:distDocker
+./gradlew core:nodejs20Action:distDocker
 ```
 
-This will return the following runtime images with the following names: `action-nodejs-v16`, and `action-nodejs-v18`.
+This will return the following runtime images with the following names: `action-nodejs-v18`, and `action-nodejs-v20`.
 
 ### Testing
 
@@ -97,7 +95,6 @@ This will return the following runtime images with the following names: `action-
 - Build the custom Docker images used in local testing.
 
 ```
-./gradlew tests:dat:docker:nodejs16docker:distDocker
 ./gradlew tests:dat:docker:nodejs18docker:distDocker
 ./gradlew tests:dat:docker:nodejs20docker:distDocker
 ```

core/nodejs16Action/.dockerignore

@@ -18,10 +18,8 @@
 include 'tests'
 
 include 'core:nodejsActionBase'
-include 'core:nodejs16Action'
 include 'core:nodejs18Action'
 include 'core:nodejs20Action'
-include 'tests:dat:docker:nodejs16docker'
 include 'tests:dat:docker:nodejs18docker'
 include 'tests:dat:docker:nodejs20docker'