Upgrade to Node.js 14 (github#15822)

* set engines.node to >=12

* set engines.node to >=12

* Update node-versions.md

* update Node.js version in Actions workflows

* Update .node-version

* Update references to Node.js version from 12 to 14

* Update Dockerfile to use Node.js 14

* set engines.node to safe "12 - 14" range

.github/workflows/sync-algolia-search-indices.yml

@@ -15,7 +15,7 @@ jobs:
       uses: actions/checkout@v2
     - uses: actions/setup-node@v1
       with:
-        node-version: "12.x"
+        node-version: 14.x
     - name: cache node modules
       uses: actions/cache@v1
       with:

.github/workflows/test-translations.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache
@@ -57,7 +57,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache

.github/workflows/test-windows.yml

@@ -20,7 +20,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache
@@ -58,7 +58,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache

.github/workflows/test.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache
@@ -60,7 +60,7 @@ jobs:
       - name: Setup node
         uses: actions/setup-node@v1
         with:
-          node-version: 12.x
+          node-version: 14.x
 
       - name: Get npm cache directory
         id: npm-cache

.node-version

@@ -1 +1 @@
-12.8.0
+14.13.0

Dockerfile

@@ -6,7 +6,7 @@
 # INSTALLATION IMAGE
 # A temporary image that installs production-only dependencies
 
-FROM node:12-alpine as installation
+FROM node:14-alpine as installation
 ENV NODE_ENV production
 WORKDIR /usr/src/docs
 COPY package*.json ./
@@ -18,7 +18,7 @@ RUN npm ci
 # BUNDLE IMAGE
 # A temporary image that installs dependencies and builds the production-ready front-end bundles.
 
-FROM node:12-alpine as bundles
+FROM node:14-alpine as bundles
 WORKDIR /usr/src/docs
 # Install the files used to create the bundles
 COPY package*.json ./
@@ -32,7 +32,7 @@ RUN npm ci && npm run build
 # --------------------------------------------------------------------------------
 # MAIN IMAGE
 
-FROM node:12-alpine
+FROM node:14-alpine
 
 # Let's make our home
 WORKDIR /usr/src/docs

contributing/development.md

@@ -8,7 +8,7 @@ This site is powered by Node.js! :sparkles: :turtle: :rocket: :sparkles:
 
 It runs on macOS, Windows, and Linux environments.
 
-You'll need **Node.js v12** to run the site. If you're using [`nodenv`](https://github.com/nodenv/nodenv), read the [`nodenv` docs](#nodenv) below for instructions on switching to Node.js 12. If you're not using `nodenv`, the best way to install Node.js is to [download the LTS installer from nodejs.org](https://nodejs.org).
+You'll need **Node.js v14** to run the site. If you're using [`nodenv`](https://github.com/nodenv/nodenv), read the [`nodenv` docs](#nodenv) for instructions on switching Node.js versions. If you're not using `nodenv`, the best way to install Node.js is to [download the LTS installer from nodejs.org](https://nodejs.org).
 
 Once you've installed Node.js (which includes the popular `npm` package manager), open Terminal and run the following:
 
@@ -52,26 +52,4 @@ For more info about working with this site, check out these READMEs:
 - [middleware/README.md](../middleware/README.md)
 - [script/README.md](../script/README.md)
 - [stylesheets/README.md](../stylesheets/README.md)
-- [tests/README.md](../tests/README.md)
-
-## `nodenv`
-
-[nodenv](https://github.com/nodenv/nodenv) is a tool for managing multiple Node.js versions on your local machine. It is **not required** to run this app, but you may already have it installed if you've worked on other projects that use Node.js.
-
-To install Node.js 12 and make it your default version, run this command:
-
-```sh
-nodenv install 12.8.0 && nodenv global 12.8.0
-```
-
-You may sometimes see a warning when running npm scripts with nodenv:
-
-```sh
-npm WARN lifecycle The node binary used for scripts is [...] but npm is using [...]
-```
-
-This is due to nodenv's overriding behavior. To silence this harmless warning, the [nodenv docs](https://github.com/nodenv/nodenv/wiki/FAQ#npm-warning-about-mismatched-binaries) recommend running the following command from any directory:
-
-```sh
-npm config set scripts-prepend-node-path auto
-```
+- [tests/README.md](../tests/README.md)

contributing/node-versions.md

@@ -1,26 +1,32 @@
-## Node Versions
+# Node Versions
 
-The site currently runs on Node.js v12, the [Active LTS version](https://nodejs.org/en/about/releases/) that will be supported until 2020-10-20.
+The site currently runs on Node.js v14, the [Active LTS version](https://nodejs.org/en/about/releases/) from 2020-10-27 to 2021-10-26.
 
 When updating to a new Node.js version, consider the following files:
 
-- The `engines.node` entry in `package.json`
-- The `.node-version` file used by [nodenv](https://github.com/nodenv/nodenv), a tool for managing multiple Node.js versions on your machine.
-- The `.github/*.workflow` Actions files
-- The `Dockerfile` that can be used for deployments
-- This README!
+- [ ] The `engines.node` entry in `package.json`
+- [ ] The `.node-version` file used by [nodenv](https://github.com/nodenv/nodenv), a tool for managing multiple Node.js versions on your machine.
+- [ ] The `.github/*.workflow` Actions files
+- [ ] The `Dockerfile` that can be used for deployments
+- [ ] The `contributing/development.md` guide
+- [ ] The `contributing/node-versions.md` file
 
-### `nodenv`
+## `nodenv`
 
-[nodenv](https://github.com/nodenv/nodenv) is a tool for managing multiple
-Node.js versions on your local machine. It is **not required** to run the
-docs-internal app, but you may already have it installed if you've worked on other
-internal GitHub projects that use Node.js.
+[nodenv](https://github.com/nodenv/nodenv) is a tool for managing multiple Node.js versions on your local machine. It is **not required** to run this app, but you may already have it installed if you've worked on other projects that use Node.js.
 
-To install Node.js 12 and make it your default version, run this command:
+If you're using macOS, run this command to get the latest:
+
+```
+brew upgrade nodenv node-build
+```
+
+If you're using another operating system, or did not use Homebrew to install nodenv, see these [upgrade instructions](https://github.com/nodenv/nodenv#installation).
+
+To install Node.js 14 and make it your default version, run this command:
 
 ```sh
-nodenv install 12.8.0 && nodenv global 12.8.0
+nodenv install 14.13.0 && nodenv global 14.13.0
 ```
 
 You may sometimes see a warning when running npm scripts with nodenv:
@@ -29,10 +35,8 @@ You may sometimes see a warning when running npm scripts with nodenv:
 npm WARN lifecycle The node binary used for scripts is [...] but npm is using [...]
 ```
 
-This is due to nodenv's overriding behavior. To silence this harmless warning,
-the [nodenv docs](https://github.com/nodenv/nodenv/wiki/FAQ#npm-warning-about-mismatched-binaries)
-recommend running the following command from any directory:
+This is due to nodenv's overriding behavior. To silence this harmless warning, the [nodenv docs](https://github.com/nodenv/nodenv/wiki/FAQ#npm-warning-about-mismatched-binaries) recommend running the following command from any directory:
 
 ```sh
 npm config set scripts-prepend-node-path auto
-```
+```

package.json

@@ -140,7 +140,7 @@
     "pa11y-test": "start-server-and-test browser-test-server 4001 pa11y-ci"
   },
   "engines": {
-    "node": "8 - 12"
+    "node": "12 - 14"
   },
   "repository": "https://github.com/github/docs",
   "standard": {