Purge old deployment environments (#40027)

.github/actions-scripts/purge-old-deployment-environments.js

@@ -0,0 +1,65 @@
+#!/usr/bin/env node
+
+import assert from 'node:assert/strict'
+
+import { getOctokit } from '@actions/github'
+
+main()
+async function main() {
+  const DRY_RUN = Boolean(JSON.parse(process.env.DRY_RUN || 'false'))
+  const MAX_DELETIONS = parseInt(JSON.parse(process.env.MAX_DELETIONS || '10'))
+  const MIN_AGE_DAYS = parseInt(process.env.MIN_AGE_DAYS || '90', 10)
+
+  const [owner, repo] = process.env.GITHUB_REPOSITORY.split('/')
+  if (!owner || !repo) {
+    throw new Error('GITHUB_REPOSITORY environment variable not set')
+  }
+  const token = process.env.GITHUB_TOKEN
+  if (!token) {
+    throw new Error(`GITHUB_TOKEN environment variable not set`)
+  }
+  const github = getOctokit(token)
+
+  // The sort order is not explicitly listed for this API endpoint.
+  // In practice it appears to list those that are oldest first.
+  // But to guarantee that it reaches the oldest, we paginate over
+  // all of them.
+  const environments = await github.paginate('GET /repos/{owner}/{repo}/environments', {
+    owner,
+    repo,
+  })
+
+  let countDeletions = 0
+  for (const environment of environments) {
+    const ageDays = (Date.now() - Date.parse(environment.created_at)) / 1000 / 60 / 60 / 24
+    if (ageDays > MIN_AGE_DAYS) {
+      console.log(
+        `Deleting environment ${environment.name} created ${Math.ceil(ageDays)} days ago`,
+        DRY_RUN ? '(DRY RUN)' : '',
+      )
+      if (!DRY_RUN) {
+        const { status } = await github.request(
+          'DELETE /repos/{owner}/{repo}/environments/{name}',
+          {
+            owner,
+            repo,
+            name: environment.name,
+          },
+        )
+        assert(status === 204, `Expected status 204, got ${status}`)
+      }
+      countDeletions++
+      if (MAX_DELETIONS && countDeletions >= MAX_DELETIONS) {
+        console.log(`Reached max number of deletions: ${MAX_DELETIONS}`)
+        break
+      }
+    } else {
+      console.log(
+        `Environment ${environment.name} (${environment.id}) created ${Math.ceil(
+          ageDays,
+        )} days ago, is *not* old enough`,
+      )
+    }
+  }
+  console.log(`Deleted ${countDeletions} environments`, DRY_RUN ? '(DRY RUN)' : '')
+}