[R2.20-Build 17]: nova --user-data option is not working for docker container creation

[alok kumar]

while creating nova instances, user-data script is not getting executed in case of docker containers.

root@nodeg18:~# cat script.sh
#!/bin/sh
echo "hello" > /tmp/output.txt

root@nodeg18:~# nova boot --flavor 2 --image e25699d4-f858-4abd-af3c-9822ee2809b2 --user-data "script.sh" --nic net-id=165f5f17-4830-4547-ac12-9dc3e10fee46 lxc-alok2

root@nodeg18:~# nova list
+--------------------------------------+-----------+--------+------------+-------------+--------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-----------+--------+------------+-------------+--------------+
| 834753ab-829a-4085-8aaf-266dd043b45b | lxc-alok2 | ACTIVE | - | Running | vn1=1.1.1.7 |
| c77a4c84-6077-423c-bae3-266cc55852ff | lxc1 | ACTIVE | - | Running | vn1=1.1.1.3 |
| de43e336-ad5f-4808-88ee-d5b67554f79e | lxc2 | ACTIVE | - | Running | vn1=1.1.1.5 |
| 9f4a4f55-2795-48e0-9cd9-6663d60fdd63 | vm-alok4 | ACTIVE | - | Running | vn1=1.1.1.11 |
| 4f6de287-d76e-4de0-96eb-e39d3c216583 | vm1 | ACTIVE | - | Running | vn1=1.1.1.4 |
| 8a4e6c1e-9c0a-4b85-acd5-e275f466cbc8 | vm2 | ACTIVE | - | Running | vn1=1.1.1.6 |
+--------------------------------------+-----------+--------+------------+-------------+--------------+

root@nodec62:/usr/lib/python2.7/dist-packages/novadocker/virt/docker# docker exec 73f2ddb6b29a ls /tmp
root@nodec62:/usr/lib/python2.7/dist-packages/novadocker/virt/docker#

[Ignatious Johnson Christopher (ijohnson-x)]

I tried it test with cloud image in contrail mainline build 2712, It worked as expected, Possibly you were not using a cloud docker image, for the meta data services to be operational , we need cloud image( image with cloud-init package installed).

root@a5s194:~# contrail-version
Package Version Build-ID | Repo | Package Name
-------------------------------------- ------------------------------ ----------------------------------
contrail-analytics 3.0-2712 2712
contrail-config 3.0-2712 2712
contrail-config-openstack 3.0-2712 2712
contrail-control 3.0-2712 2712
contrail-dns 3.0-2712 2712
contrail-docs 3.0-2712 2712
contrail-f5 3.0-2712 2712
contrail-fabric-utils 3.0-2712 2712
contrail-heat 3.0-2712 2712
contrail-install-packages 3.0-2712~kilo 2712

root@a5s194:~# pwd
/root
root@a5s194:~# cat script.sh
#!/bin/sh
echo "hello" > /tmp/output.txt
root@a5s194:~#

root@a5s194:/opt/contrail/utils# docker pull cirros
Pulling repository cirros
64a920f75037: Download complete
c74e3fca9821: Download complete
e1ceeb0716f6: Download complete
cb5c6009bac1: Download complete
7725b0aea0a1: Download complete
Status: Downloaded newer image for cirros:latest ^C
 raw@a5s194:/opt/contrail/utils#
root@a5s194:/opt/contrail/utils# docker save cirros | glance image-create cirros --public --container-format docker --disk-format raw
 --name cirros
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 7985e2c80e85671b76323cafa3af9609 |
| container_format | docker |
| created_at | 2016-02-11T20:14:57.322982 |
| deleted | False |
| deleted_at | None |
| disk_format | raw |
| id | 1fdd738a-8958-4951-a3cb-053b48c5da61 |
| is_public | True |
| min_disk | 0 |
| min_ram | 0 |
| name | cirros |
| owner | 72b4127e873f4df597f7c2bd8cb92f90 |
| protected | False |
| size | 8131584 |
| status | active |
| updated_at | 2016-02-11T20:14:57.650256 |
| virtual_si...