title: Openstack fails to launch new instances with status ERROR
body: <p>I was following the tutorials on Openstack (Stein) docs website to launch an instance on my provider network. I am using networking option 2. I run the following command to create the instance, replacing <code>PROVIDER_NET_ID</code> with my provider network interface id.</p>
  <pre><code>openstack server create --flavor m1.nano --image cirros \
    --nic net-id=PROVIDER_NET_ID --security-group default \
    --key-name mykey provider-instance1
  </code></pre>
  <p>I run <code>openstack server list</code> to check the status of my instance. It shows a status of <code>ERROR</code>.
  I checked the <code>/var/log/nova/nova-compute.log</code> on my compute node (I only have one compute node) and came across the following error.</p>
  <pre><code>ERROR nova.compute.manager [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6
  995cce48094442b4b29f3fb665219408 429965cc45a743a5b00f3a1bd098e1ab - default default]
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] Instance failed to spawn: PermissionError:
  [Errno 13] Permission denied: '/var/lib/nova/instances/19a6c859-5dde-4ed3-9010-4d93ebe9a942'
  </code></pre>
  <p>However, logs before this error in the log file seem like everything was okay before this error occured.</p>
  <pre><code>2022-05-23 12:40:21.011 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942]
  Attempting claim on node compute1: memory 64 MB, disk 1 GB, vcpus 1 CPU
  2022-05-23 12:40:21.019 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] Total memory: 3943 MB, used: 512.00 MB
  2022-05-23 12:40:21.020 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] memory limit not specified, defaulting to unlimited
  2022-05-23 12:40:21.020 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] Total disk: 28 GB, used: 0.00 GB
  2022-05-23 12:40:21.021 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] disk limit not specified, defaulting to unlimited
  2022-05-23 12:40:21.024 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] Total vcpu: 4 VCPU, used: 0.00 VCPU
  2022-05-23 12:40:21.025 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] vcpu limit not specified, defaulting to unlimited
  2022-05-23 12:40:21.028 9627 INFO nova.compute.claims 
  [req-0a1a6ddf-edc7-4987-a018-32af7b6a29b6 995cce48094442b4b29f3fb665219408 
  429965cc45a743a5b00f3a1bd098e1ab - default default] 
  [instance: 19a6c859-5dde-4ed3-9010-4d93ebe9a942] Claim successful on node compute1
  </code></pre>
  <p>Anyone have any ideas one what I may be doing wrong?
  I'll be thankful.</p>