openstack-manuals/doc/install-guide/source/launch-instance-neutron.rst
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Launch an instance with OpenStack Networking (neutron)

To generate a key pair

Most cloud images support public key authentication rather than conventional user name/password authentication. Before launching an instance, you must generate a public/private key pair.

  1. Source the demo tenant credentials:

    $ source demo-openrc.sh
  2. Generate and add a key pair:

    $ nova keypair-add demo-key
  3. Verify addition of the key pair:

    $ nova keypair-list
    +----------+-------------------------------------------------+
    | Name     | Fingerprint                                     |
    +----------+-------------------------------------------------+
    | demo-key | 6c:74:ec:3a:08:05:4e:9e:21:22:a6:dd:b2:62:b8:28 |
    +----------+-------------------------------------------------+

To launch an instance

To launch an instance, you must at least specify the flavor, image name, network, security group, key, and instance name.

  1. A flavor specifies a virtual resource allocation profile which includes processor, memory, and storage.

    List available flavors:

    $ nova flavor-list
    +-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
    | ID  | Name      | Memory_MB | Disk | Ephemeral | Swap | VCPUs | RXTX_Factor | Is_Public |
    +-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+
    | 1   | m1.tiny   | 512       | 1    | 0         |      | 1     | 1.0         | True      |
    | 2   | m1.small  | 2048      | 20   | 0         |      | 1     | 1.0         | True      |
    | 3   | m1.medium | 4096      | 40   | 0         |      | 2     | 1.0         | True      |
    | 4   | m1.large  | 8192      | 80   | 0         |      | 4     | 1.0         | True      |
    | 5   | m1.xlarge | 16384     | 160  | 0         |      | 8     | 1.0         | True      |
    +-----+-----------+-----------+------+-----------+------+-------+-------------+-----------+

    Your first instance uses the m1.tiny flavor.

    Note

    You can also reference a flavor by ID.

  2. List available images:

    $ nova image-list
    +--------------------------------------+---------------------+--------+--------+
    | ID                                   | Name                | Status | Server |
    +--------------------------------------+---------------------+--------+--------+
    | acafc7c0-40aa-4026-9673-b879898e1fc2 | cirros-0.3.4-x86_64 | ACTIVE |        |
    +--------------------------------------+---------------------+--------+--------+

    Your first instance uses the cirros-0.3.4-x86_64 image.

  3. List available networks:

    $ neutron net-list
    +------------------------+----------+-----------------------------------------+
    | id                     | name     | subnets                                 |
    +------------------------+----------+-----------------------------------------+
    | 3c612b5a-d1db-498a-... | demo-net | 20bcd3fd-5785-41fe-... 192.168.1.0/24   |
    | 9bce64a3-a963-4c05-... | ext-net  | b54a8d85-b434-4e85-... 203.0.113.0/24   |
    +------------------------+----------+-----------------------------------------+

    Your first instance uses the demo-net tenant network. However, you must reference this network using the ID instead of the name.

  4. List available security groups:

    $ nova secgroup-list
    +--------------------------------------+---------+-------------+
    | Id                                   | Name    | Description |
    +--------------------------------------+---------+-------------+
    | ad8d4ea5-3cad-4f7d-b164-ada67ec59473 | default | default     |
    +--------------------------------------+---------+-------------+

    Your first instance uses the default security group. By default, this security group implements a firewall that blocks remote access to instances. If you would like to permit remote access to your instance, launch it and then configure remote access <launch-instance-neutron-remoteaccess>.

  5. Launch the instance:

    Replace DEMO_NET_ID with the ID of the demo-net tenant network.

    $ nova boot --flavor m1.tiny --image cirros-0.3.4-x86_64 --nic net-id=DEMO_NET_ID \
      --security-group default --key-name demo-key demo-instance1
    +--------------------------------------+------------------------------------+
    | Property                             | Value                              |
    +--------------------------------------+------------------------------------+
    | OS-DCF:diskConfig                    | MANUAL                             |
    | OS-EXT-AZ:availability_zone          | nova                               |
    | OS-EXT-STS:power_state               | 0                                  |
    | OS-EXT-STS:task_state                | scheduling                         |
    | OS-EXT-STS:vm_state                  | building                           |
    | OS-SRV-USG:launched_at               | -                                  |
    | OS-SRV-USG:terminated_at             | -                                  |
    | accessIPv4                           |                                    |
    | accessIPv6                           |                                    |
    | adminPass                            | vFW7Bp8PQGNo                       |
    | config_drive                         |                                    |
    | created                              | 2014-04-09T19:24:27Z               |
    | flavor                               | m1.tiny (1)                        |
    | hostId                               |                                    |
    | id                                   | 05682b91-81a1-464c-8f40-8b3da7e... |
    | image                                | cirros-0.3.4-x86_64 (acafc7c0-...) |
    | key_name                             | demo-key                           |
    | metadata                             | {}                                 |
    | name                                 | demo-instance1                     |
    | os-extended-volumes:volumes_attached | []                                 |
    | progress                             | 0                                  |
    | security_groups                      | default                            |
    | status                               | BUILD                              |
    | tenant_id                            | 7cf50047f8df4824bc76c2fdf66d11ec   |
    | updated                              | 2014-04-09T19:24:27Z               |
    | user_id                              | 0e47686e72114d7182f7569d70c519c9   |
    +--------------------------------------+------------------------------------+
  6. Check the status of your instance:

    $ nova list
    +--------------+----------------+--------+------------+-------------+-------------------------+
    | ID           | Name           | Status | Task State | Power State | Networks                |
    +--------------+----------------+--------+------------+-------------+-------------------------+
    | 05682b91-... | demo-instance1 | ACTIVE | -          | Running     | demo-net=192.168.1.3    |
    +--------------+----------------+--------+------------+-------------+-------------------------+

    The status changes from BUILD to ACTIVE when your instance finishes the build process.

To access your instance using a virtual console

  1. Obtain a Virtual Network Computing (VNC) session URL for your instance and access it from a web browser:

    $ nova get-vnc-console demo-instance1 novnc
    +-------+------------------------------------------------------------------------------------+
    | Type  | Url                                                                                |
    +-------+------------------------------------------------------------------------------------+
    | novnc | http://controller:6080/vnc_auto.html?token=2f6dd985-f906-4bfc-b566-e87ce656375b    |
    +-------+------------------------------------------------------------------------------------+

    Note

    If your web browser runs on a host that cannot resolve the controller host name, you can replace controller with the IP address of the management interface on your controller node.

    The CirrOS image includes conventional user name/password authentication and provides these credentials at the login prompt. After logging into CirrOS, we recommend that you verify network connectivity using ping.

    Verify the demo-net tenant network gateway:

    $ ping -c 4 192.168.1.1
    PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
    64 bytes from 192.168.1.1: icmp_req=1 ttl=64 time=0.357 ms
    64 bytes from 192.168.1.1: icmp_req=2 ttl=64 time=0.473 ms
    64 bytes from 192.168.1.1: icmp_req=3 ttl=64 time=0.504 ms
    64 bytes from 192.168.1.1: icmp_req=4 ttl=64 time=0.470 ms
    
    --- 192.168.1.1 ping statistics ---
    4 packets transmitted, 4 received, 0% packet loss, time 2998ms
    rtt min/avg/max/mdev = 0.357/0.451/0.504/0.055 ms

    Verify the ext-net external network:

    $ ping -c 4 openstack.org
    PING openstack.org (174.143.194.225) 56(84) bytes of data.
    64 bytes from 174.143.194.225: icmp_req=1 ttl=53 time=17.4 ms
    64 bytes from 174.143.194.225: icmp_req=2 ttl=53 time=17.5 ms
    64 bytes from 174.143.194.225: icmp_req=3 ttl=53 time=17.7 ms
    64 bytes from 174.143.194.225: icmp_req=4 ttl=53 time=17.5 ms
    
    --- openstack.org ping statistics ---
    4 packets transmitted, 4 received, 0% packet loss, time 3003ms
    rtt min/avg/max/mdev = 17.431/17.575/17.734/0.143 ms

To access your instance remotely

  1. Add rules to the default security group:

    1. Permit ICMP (ping):

      $ nova secgroup-add-rule default icmp -1 -1 0.0.0.0/0
      +-------------+-----------+---------+-----------+--------------+
      | IP Protocol | From Port | To Port | IP Range  | Source Group |
      +-------------+-----------+---------+-----------+--------------+
      | icmp        | -1        | -1      | 0.0.0.0/0 |              |
      +-------------+-----------+---------+-----------+--------------+
    2. Permit secure shell (SSH) access:

      $ nova secgroup-add-rule default tcp 22 22 0.0.0.0/0
      +-------------+-----------+---------+-----------+--------------+
      | IP Protocol | From Port | To Port | IP Range  | Source Group |
      +-------------+-----------+---------+-----------+--------------+
      | tcp         | 22        | 22      | 0.0.0.0/0 |              |
      +-------------+-----------+---------+-----------+--------------+
  2. Create a floating IP address on the ext-net external network:

    $ neutron floatingip-create ext-net
    Created a new floatingip:
    +---------------------+--------------------------------------+
    | Field               | Value                                |
    +---------------------+--------------------------------------+
    | fixed_ip_address    |                                      |
    | floating_ip_address | 203.0.113.102                        |
    | floating_network_id | 9bce64a3-a963-4c05-bfcd-161f708042d1 |
    | id                  | 05e36754-e7f3-46bb-9eaa-3521623b3722 |
    | port_id             |                                      |
    | router_id           |                                      |
    | status              | DOWN                                 |
    | tenant_id           | 7cf50047f8df4824bc76c2fdf66d11ec     |
    +---------------------+--------------------------------------+
  3. Associate the floating IP address with your instance:

    $ nova floating-ip-associate demo-instance1 203.0.113.102

    Note

    This command provides no output.

  4. Check the status of your floating IP address:

    $ nova list
    +--------------+----------------+--------+------------+-------------+-----------------------------------------+
    | ID           | Name           | Status | Task State | Power State | Networks                                |
    +--------------+----------------+--------+------------+-------------+-----------------------------------------+
    | 05682b91-... | demo-instance1 | ACTIVE | -          | Running     | demo-net=192.168.1.3, 203.0.113.102     |
    +--------------+----------------+--------+------------+-------------+-----------------------------------------+
  5. Verify network connectivity using ping from the controller node or any host on the external network:

    $ ping -c 4 203.0.113.102
    PING 203.0.113.102 (203.0.113.112) 56(84) bytes of data.
    64 bytes from 203.0.113.102: icmp_req=1 ttl=63 time=3.18 ms
    64 bytes from 203.0.113.102: icmp_req=2 ttl=63 time=0.981 ms
    64 bytes from 203.0.113.102: icmp_req=3 ttl=63 time=1.06 ms
    64 bytes from 203.0.113.102: icmp_req=4 ttl=63 time=0.929 ms
    
    --- 203.0.113.102 ping statistics ---
    4 packets transmitted, 4 received, 0% packet loss, time 3002ms
    rtt min/avg/max/mdev = 0.929/1.539/3.183/0.951 ms
  6. Access your instance using SSH from the controller node or any host on the external network:

    $ ssh cirros@203.0.113.102
    The authenticity of host '203.0.113.102 (203.0.113.102)' can't be established.
    RSA key fingerprint is ed:05:e9:e7:52:a0:ff:83:68:94:c7:d1:f2:f8:e2:e9.
    Are you sure you want to continue connecting (yes/no)? yes
    Warning: Permanently added '203.0.113.102' (RSA) to the list of known hosts.
    $

    Note

    If your host does not contain the public/private key pair created in an earlier step, SSH prompts for the default password associated with the cirros user.

To attach a Block Storage volume to your instance

If your environment includes the Block Storage service, you can attach a volume to the instance.

  1. Source the demo credentials:

    $ source demo-openrc.sh
  2. List volumes:

    $ nova volume-list
    +--------------+-----------+--------------+------+-------------+-------------+
    | ID           | Status    | Display Name | Size | Volume Type | Attached to |
    +--------------+-----------+--------------+------+-------------+-------------+
    | 158bea89-... | available |              | 1    | -           |             |
    +--------------+-----------+--------------+------+-------------+-------------+
  3. Attach the demo-volume1 volume to the demo-instance1 instance:

    $ nova volume-attach demo-instance1 158bea89-07db-4ac2-8115-66c0d6a4bb48
    +----------+--------------------------------------+
    | Property | Value                                |
    +----------+--------------------------------------+
    | device   | /dev/vdb                             |
    | id       | 158bea89-07db-4ac2-8115-66c0d6a4bb48 |
    | serverId | 05682b91-81a1-464c-8f40-8b3da7ee92c5 |
    | volumeId | 158bea89-07db-4ac2-8115-66c0d6a4bb48 |
    +----------+--------------------------------------+

    Note

    You must reference volumes using the IDs instead of names.

  4. List volumes:

    $ nova volume-list
    +--------------+-----------+--------------+------+-------------+--------------+
    | ID           | Status    | Display Name | Size | Volume Type | Attached to  |
    +--------------+-----------+--------------+------+-------------+--------------+
    | 158bea89-... | in-use    |              | 1    | -           | 05682b91-... |
    +--------------+-----------+--------------+------+-------------+--------------+

    The ID of the demo-volume1 volume should indicate in-use status by the ID of the demo-instance1 instance.

  5. Access your instance using SSH from the controller node or any host on the external network and use the fdisk command to verify presence of the volume as the /dev/vdb block storage device:

    $ ssh cirros@203.0.113.102
    $ sudo fdisk -l
    
    Disk /dev/vda: 1073 MB, 1073741824 bytes
    255 heads, 63 sectors/track, 130 cylinders, total 2097152 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/vda1   *       16065     2088449     1036192+  83  Linux
    
    Disk /dev/vdb: 1073 MB, 1073741824 bytes
    16 heads, 63 sectors/track, 2080 cylinders, total 2097152 sectors
    Units = sectors of 1 * 512 = 512 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000
    
    Disk /dev/vdb doesn't contain a valid partition table

    Note

    You must create a partition table and file system to use the volume.

If your instance does not launch or seem to work as you expect, see the OpenStack Operations Guide for more information or use one of the many other options <common/app_support> to seek assistance. We want your environment to work!