From 8b8037cc360fbcb5387ab10716e1a6f2b4546d53 Mon Sep 17 00:00:00 2001
From: Bogdan Luca <luca.bogdan@gmail.com>
Date: Tue, 14 Jul 2020 11:15:11 +0300
Subject: [PATCH] fix: fix kubernetes container detection

---
 packages/@vue/cli-service/lib/commands/serve.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/packages/@vue/cli-service/lib/commands/serve.js b/packages/@vue/cli-service/lib/commands/serve.js
index 57de4484ee..f07b34be3b 100644
--- a/packages/@vue/cli-service/lib/commands/serve.js
+++ b/packages/@vue/cli-service/lib/commands/serve.js
@@ -345,10 +345,13 @@ function addDevClientToEntry (config, devClient) {
 
 // https://stackoverflow.com/a/20012536
 function checkInContainer () {
+  if ('CODESANDBOX_SSE' in process.env) {
+    return true
+  }
   const fs = require('fs')
   if (fs.existsSync(`/proc/1/cgroup`)) {
     const content = fs.readFileSync(`/proc/1/cgroup`, 'utf-8')
-    return /:\/(lxc|docker|kubepods)\//.test(content)
+    return /:\/(lxc|docker|kubepods(\.slice)?)\//.test(content)
   }
 }