feat: add session expiry deletion script and scheduler

server/src/containers/docker.js

@@ -65,3 +65,18 @@ export async function attachContainer(container, { token }) {
 
   return execOutput.socket
 }
+
+export async function deleteContainer(id) {
+  const container = engine.getContainer(id)
+  if (!container) {
+    return
+  }
+  try {
+    await container.stop()
+    await container.remove({
+      force: true,
+    })
+  } catch (error) {
+    console.log(error)
+  }
+}

server/src/containers/expiryChecker.js

@@ -0,0 +1,28 @@
+import schedule from 'node-schedule'
+import config from '../config.js'
+import Session from '../models/session.js'
+import { deleteContainer } from './docker.js'
+
+export async function removeExpired() {
+  // Find all sessions that are containerId is not null and lastActivityAt is
+  // less than the current time minus the expiry time
+  console.log('Checking for expired sessions')
+  const sessions = await Session.find({
+    containerId: { $ne: null },
+    lastActivityAt: { $lt: new Date(Date.now() - config.expiry) },
+  })
+  await Promise.all(
+    sessions.map(async (session) => {
+      console.log('Expiring session: ', session._id, session.containerId)
+      await deleteContainer(session.containerId)
+      session.status = 'deactive'
+      session.containerId = null
+      await session.save()
+    })
+  )
+  console.log('Done checking for expired sessions')
+}
+
+export default function expiryRemovalScheduler() {
+  schedule.scheduleJob('*/5 * * * *', removeExpired)
+}