Docker image deploy to Heroku (#21248)

* Start parallel Docker image deploy workflows

Co-authored-by: Mike Surowiec <mikesurowiec@users.noreply.github.com>
Co-authored-by: James M. Greene <JamesMGreene@users.noreply.github.com>

* Add early access content build stage

Co-authored-by: Mike Surowiec <mikesurowiec@users.noreply.github.com>

* Create Heroku App script and workflow steps

* Tag the image for Heroku

* Push the image and grab the image ID

* Set app name and image id outputs

* Add parallel deploy script for Docker

* Scope workflow run to 'docker-' and release image to Heroku

* Update .github/workflows/staging-build-pr-docker.yml

Co-authored-by: James M. Greene <JamesMGreene@github.com>

* Exclude Docker workflow

* Cleanup Docker deploys

* Use action sha

Co-authored-by: Mike Surowiec <mikesurowiec@users.noreply.github.com>
Co-authored-by: James M. Greene <JamesMGreene@users.noreply.github.com>
Co-authored-by: James M. Greene <JamesMGreene@github.com>

script/deployment/create-app.js

@@ -0,0 +1,44 @@
+#!/usr/bin/env node
+import Heroku from 'heroku-client'
+import createAppName from './create-staging-app-name.js'
+
+export default async function createApp(pullRequest) {
+  // Extract some important properties from the PR
+  const {
+    number: pullNumber,
+    base: {
+      repo: { name: repo },
+    },
+    head: { ref: branch },
+  } = pullRequest
+
+  const appName = createAppName({ prefix: 'ghd', repo, pullNumber, branch })
+
+  // Check if there's already a Heroku App for this PR, if not create one
+  let appExists = true
+  const heroku = new Heroku({ token: process.env.HEROKU_API_TOKEN })
+
+  try {
+    await heroku.get(`/apps/${appName}`)
+  } catch (e) {
+    appExists = false
+  }
+
+  if (!appExists) {
+    try {
+      const newApp = await heroku.post('/apps', {
+        body: {
+          name: appName,
+        },
+      })
+
+      console.log('Heroku App created', newApp)
+    } catch (error) {
+      throw new Error(`Failed to create Heroku App ${appName}. Error: ${error}`)
+    }
+  } else {
+    console.log(`Heroku App ${appName} already exists.`)
+  }
+
+  return appName
+}