title: Cannot run executable shell script on Google Container-Optimized OS
body: <p>On any other linux distro, I can create a file with a shebang and run shell scripts like so:</p>
  
  <pre><code>$ chmod +x test.sh
  $ ./test.sh Johnny
  hello Johnny
  </code></pre>
  
  <p>But on Google Cloud Platform Container-Optimized OS, I get <code>-bash: ./test.sh: Permission denied</code></p>
  
  <p>If I prefix with <code>sh</code> e.g. <code>sh test.sh Johnny</code> it will work. How can I get this to work normally?</p>
  
  <pre><code>$ cat test.sh
  #!/usr/bin/env sh
  
  echo "Hello $@"
  
  matt@rancher-4mmm /tmp/matt $ chmod +x test.sh 
  matt@rancher-4mmm /tmp/matt $ sh ./test.sh matt
  Hello matt
  
  matt@rancher-4mmm /tmp/matt $ ./test.sh matt
  -bash: ./test.sh: Permission denied
  matt@rancher-4mmm /tmp/matt $ ls -la
  total 4
  drwxr-xr-x  2 matt matt  60 Feb 28 20:00 .
  drwxrwxrwt 14 root root 280 Feb 28 19:59 ..
  -rwxr-xr-x  1 matt matt  35 Feb 28 20:00 test.sh
  </code></pre>