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======================================================
Launch an instance with OpenStack Networking (neutron)
======================================================
To generate a key pair
~~~~~~~~~~~~~~~~~~~~~~
Most cloud images support :term:`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:
.. code-block:: console
$ source demo-openrc.sh
2. Generate and add a key pair:
.. code-block:: console
$ nova keypair-add demo-key
3. Verify addition of the key pair:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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
:ref:`configure remote access <launch-instance-neutron-remoteaccess>`.
5. Launch the instance:
Replace ``DEMO_NET_ID`` with the ID of the ``demo-net`` tenant network.
.. code-block:: console
$ 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:
.. code-block:: console
$ 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 :term:`Virtual Network Computing (VNC)`
session URL for your instance and access it from a web browser:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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
.. _launch-instance-neutron-remoteaccess:
To access your instance remotely
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Add rules to the ``default`` security group:
a. Permit :term:`ICMP` (ping):
.. code-block:: console
$ 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 | |
+-------------+-----------+---------+-----------+--------------+
b. Permit secure shell (SSH) access:
.. code-block:: console
$ 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 :term:`floating IP address` on the ``ext-net`` external network:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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 :command:`ping` from the
controller node or any host on the external network:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ source demo-openrc.sh
2. List volumes:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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 :command:`fdisk`
command to verify presence of the volume as the
``/dev/vdb`` block storage device:
.. code-block:: console
$ 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 <http://docs.openstack.org/ops>`__ for more
information or use one of the :doc:`many other options <common/app_support>`
to seek assistance. We want your environment to work!

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========================================================
Launch an instance with legacy networking (nova-network)
========================================================
To generate a key pair
~~~~~~~~~~~~~~~~~~~~~~
Most cloud images support :term:`public key authentication`
rather than conventional user name/password authentication.
Before launching an instance, you must you must generate
a public/private key pair using :command:`ssh-keygen` and
add the public key to your OpenStack environment.
1. Source the ``demo`` tenant credentials:
.. code-block:: console
$ source demo-openrc.sh
2. Generate a key pair:
.. code-block:: console
$ ssh-keygen
3. Add the public key to your OpenStack environment:
.. code-block:: console
$ nova keypair-add --pub-key ~/.ssh/id_rsa.pub demo-key
.. note::
This command provides no output.
4. Verify addition of the public key:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. code-block:: console
$ 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:
.. note::
You must source the ``admin`` tenant credentials for this step and
then source the ``demo`` tenant credentials for the remaining steps.
.. code-block:: console
$ source admin-openrc.sh
.. code-block:: console
$ nova net-list
+--------------------------------------+----------+------------------+
| ID | Label | CIDR |
+--------------------------------------+----------+------------------+
| 7f849be3-4494-495a-95a1-0f99ccb884c4 | demo-net | 203.0.113.24/29 |
+--------------------------------------+----------+------------------+
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:
.. code-block:: console
$ 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
:ref:`configure remote access <launch-instance-nova-remoteaccess>`.
5. Launch the instance:
Replace ``DEMO_NET_ID`` with the ID of the ``demo-net`` tenant network.
.. code-block:: console
$ 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 | ThZqrg7ach78 |
| config_drive | |
| created | 2014-04-10T00:09:16Z |
| flavor | m1.tiny (1) |
| hostId | |
| id | 45ea195c-c469-43eb-83db-1a663bb... |
| 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 | 93849608fe3d462ca9fa0e5dbfd4d040 |
| updated | 2014-04-10T00:09:16Z |
| user_id | 8397567baf4746cca7a1e608677c3b23 |
+--------------------------------------+------------------------------------+
6. Check the status of your instance:
.. code-block:: console
$ nova list
+--------------+----------------+--------+------------+-------------+------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------+----------------+--------+------------+-------------+------------------------+
| 45ea195c-... | demo-instance1 | ACTIVE | - | Running | demo-net=203.0.113.26 |
+--------------+----------------+--------+------------+-------------+------------------------+
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 :term:`Virtual Network Computing (VNC)`
session URL for your instance and access it from a web browser:
.. code-block:: console
$ 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`` network:
.. code-block:: console
$ 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
.. _launch-instance-nova-remoteaccess:
To access your instance remotely
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
1. Add rules to the ``default`` security group:
a. Permit :term:`ICMP` (ping):
.. code-block:: console
$ 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 | |
+-------------+-----------+---------+-----------+--------------+
b. Permit secure shell (SSH) access:
.. code-block:: console
$ 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. Verify network connectivity using :command:`ping` from the
controller node or any host on the external network:
.. code-block:: console
$ ping -c 4 203.0.113.26
PING 203.0.113.102 (203.0.113.26) 56(84) bytes of data.
64 bytes from 203.0.113.26: icmp_req=1 ttl=63 time=3.18 ms
64 bytes from 203.0.113.26: icmp_req=2 ttl=63 time=0.981 ms
64 bytes from 203.0.113.26: icmp_req=3 ttl=63 time=1.06 ms
64 bytes from 203.0.113.26: icmp_req=4 ttl=63 time=0.929 ms
--- 203.0.113.26 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
3. Access your instance using SSH from the controller node or any
host on the external network:
.. code-block:: console
$ ssh cirros@203.0.113.26
The authenticity of host '203.0.113.26 (203.0.113.26)' 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 '203.0.113.26' (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:
.. code-block:: console
$ source demo-openrc.sh
2. List volumes:
.. code-block:: console
$ 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:
.. code-block:: console
$ nova volume-attach demo-instance1 158bea89-07db-4ac2-8115-66c0d6a4bb48
+----------+--------------------------------------+
| Property | Value |
+----------+--------------------------------------+
| device | /dev/vdb |
| id | 158bea89-07db-4ac2-8115-66c0d6a4bb48 |
| serverId | 45ea195c-c469-43eb-83db-1a663bbad2fc |
| volumeId | 158bea89-07db-4ac2-8115-66c0d6a4bb48 |
+----------+--------------------------------------+
.. note::
You must reference volumes using the IDs instead of names.
4. List volumes:
.. code-block:: console
$ nova volume-list
+--------------+-----------+--------------+------+-------------+--------------+
| ID | Status | Display Name | Size | Volume Type | Attached to |
+--------------+-----------+--------------+------+-------------+--------------+
| 158bea89-... | in-use | | 1 | - | 45ea195c-... |
+--------------+-----------+--------------+------+-------------+--------------+
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 :command:`fdisk`
command to verify presence of the volume as the
``/dev/vdb`` block storage device:
.. code-block:: console
$ 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 <http://docs.openstack.org/ops>`__ for more
information or use one of the :doc:`many other options <common/app_support>`
to seek assistance. We want your environment to work!

27
doc/install-guide-rst/source/launch-instance.rst
View File

@ -1,3 +1,30 @@
==================
Launch an instance
==================
.. toctree::
:maxdepth: 1
launch-instance-neutron.rst
launch-instance-nova.rst
An instance is a VM that OpenStack provisions on a compute node.
This guide shows you how to launch a minimal instance using the
:term:`CirrOS` image that you added to your environment
in the :doc:`glance` chapter. In these steps, you use the
command-line interface (CLI) on your controller node or any system with
the appropriate OpenStack client libraries. To use the dashboard, see the
`OpenStack User Guide
<http://docs.openstack.org/user-guide/dashboard.html>`__.
Launch an instance using
:doc:`OpenStack Networking (neutron) <launch-instance-neutron>` or
:doc:`legacy networking (nova-network) <launch-instance-nova>`.
For more information, see the `OpenStack User Guide
<http://docs.openstack.org/user-guide/cli_launch_instances.html>`__.
.. note::
These steps reference example components created in previous
chapters. You must adjust certain values such as IP addresses to
match your environment.