9b1593617d
Add explicit instructions to set the hostname of the nodes. Change-Id: I2794e4a64c88d89ce28fb8889fee0d35ac542593 Closes-Bug: #1315555
350 lines
15 KiB
XML
350 lines
15 KiB
XML
<section xmlns="http://docbook.org/ns/docbook"
|
|
xmlns:xi="http://www.w3.org/2001/XInclude"
|
|
xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0"
|
|
xml:id="basics-networking-neutron">
|
|
<?dbhtml-stop-chunking?>
|
|
<title>OpenStack Networking (neutron)</title>
|
|
<para>The example architecture with OpenStack Networking (neutron) requires
|
|
one controller node, one network node, and at least one compute node.
|
|
The controller node contains one network interface on the
|
|
<glossterm>management network</glossterm>. The network node contains
|
|
one network interface on the management network, one on the
|
|
<glossterm>instance tunnels network</glossterm>, and one on the
|
|
<glossterm>external network</glossterm>. The compute node contains
|
|
one network interface on the management network and one on the
|
|
instance tunnels network.</para>
|
|
<note>
|
|
<para>Network interface names vary by distribution. Traditionally,
|
|
interfaces use "eth" followed by a sequential number. To cover all
|
|
variations, this guide simply refers to the first interface as the
|
|
interface with the lowest number, the second interface as the
|
|
interface with the middle number, and the third interface as the
|
|
interface with the highest number.</para>
|
|
</note>
|
|
<figure>
|
|
<title>Three-node architecture with OpenStack Networking (neutron)</title>
|
|
<mediaobject>
|
|
<imageobject>
|
|
<imagedata contentwidth="6in"
|
|
fileref="figures/installguide_arch-neutron.png"/>
|
|
</imageobject>
|
|
</mediaobject>
|
|
</figure>
|
|
<para>Unless you intend to use the exact configuration provided in this
|
|
example architecture, you must modify the networks in this procedure to
|
|
match your environment. Also, each node must resolve the other nodes
|
|
by name in addition to IP address. For example, the
|
|
<replaceable>controller</replaceable> name must resolve to
|
|
<literal>10.0.0.11</literal>, the IP address of the management
|
|
interface on the controller node.</para>
|
|
<warning>
|
|
<para>Reconfiguring network interfaces will interrupt network
|
|
connectivity. We recommend using a local terminal session for these
|
|
procedures.</para>
|
|
</warning>
|
|
<section xml:id="basics-neutron-networking-controller-node">
|
|
<title>Controller node</title>
|
|
<procedure>
|
|
<title>To configure networking:</title>
|
|
<step>
|
|
<para>Configure the first interface as the management interface:</para>
|
|
<para>IP address: 10.0.0.11</para>
|
|
<para>Network mask: 255.255.255.0 (or /24)</para>
|
|
<para>Default gateway: 10.0.0.1</para>
|
|
</step>
|
|
</procedure>
|
|
<procedure>
|
|
<title>To configure name resolution:</title>
|
|
<step>
|
|
<para>Set the hostname of the node to
|
|
<code><replaceable>controller</replaceable></code>.</para>
|
|
</step>
|
|
<step>
|
|
<para>Edit the <filename>/etc/hosts</filename> file to contain the
|
|
following:</para>
|
|
<programlisting># controller
|
|
10.0.0.11 controller
|
|
|
|
# network
|
|
10.0.0.21 network
|
|
|
|
# compute1
|
|
10.0.0.31 compute1</programlisting>
|
|
<warning os="ubuntu;debian">
|
|
<para>You must remove or comment the line beginning with
|
|
<literal>127.0.1.1</literal>.</para>
|
|
</warning>
|
|
</step>
|
|
</procedure>
|
|
</section>
|
|
<section xml:id="basics-neutron-networking-network-node">
|
|
<title>Network node</title>
|
|
<procedure>
|
|
<title>To configure networking:</title>
|
|
<step>
|
|
<para>Configure the first interface as the management interface:</para>
|
|
<para>IP address: 10.0.0.21</para>
|
|
<para>Network mask: 255.255.255.0 (or /24)</para>
|
|
<para>Default gateway: 10.0.0.1</para>
|
|
</step>
|
|
<step>
|
|
<para>Configure the second interface as the instance tunnels
|
|
interface:</para>
|
|
<para>IP address: 10.0.1.21</para>
|
|
<para>Network mask: 255.255.255.0 (or /24)</para>
|
|
</step>
|
|
<step>
|
|
<para>The external interface uses a special configuration without an
|
|
IP address assigned to it. Configure the third interface as the
|
|
external interface:</para>
|
|
<para>Replace <replaceable>INTERFACE_NAME</replaceable> with the
|
|
actual interface name. For example, <emphasis>eth2</emphasis> or
|
|
<emphasis>ens256</emphasis>.</para>
|
|
<substeps>
|
|
<step os="ubuntu;debian">
|
|
<para>Edit the <filename>/etc/network/interfaces</filename> file
|
|
to contain the following:</para>
|
|
<programlisting># The external network interface
|
|
auto <replaceable>INTERFACE_NAME</replaceable>
|
|
iface <replaceable>INTERFACE_NAME</replaceable> inet manual
|
|
up ip link set dev $IFACE up
|
|
down ip link set dev $IFACE down</programlisting>
|
|
</step>
|
|
<step os="rhel;centos;fedora">
|
|
<para>Edit the
|
|
<filename>/etc/sysconfig/network-scripts/ifcfg-<replaceable>INTERFACE_NAME</replaceable></filename>
|
|
file to contain the following:</para>
|
|
<para>Do not change the <literal>HWADDR</literal> and
|
|
<literal>UUID</literal> keys.</para>
|
|
<programlisting>DEVICE=<replaceable>INTERFACE_NAME</replaceable>
|
|
TYPE=Ethernet
|
|
ONBOOT="yes"
|
|
BOOTPROTO="none"</programlisting>
|
|
</step>
|
|
<step os="sles;opensuse">
|
|
<para>Edit the
|
|
<filename>/etc/sysconfig/network/ifcfg-<replaceable>INTERFACE_NAME</replaceable></filename> file to
|
|
contain the following:</para>
|
|
<programlisting>STARTMODE='auto'
|
|
BOOTPROTO='static'</programlisting>
|
|
</step>
|
|
</substeps>
|
|
</step>
|
|
<step>
|
|
<para>Restart networking:</para>
|
|
<screen os="ubuntu;debian"><prompt>#</prompt> <userinput>service networking stop && service networking start</userinput></screen>
|
|
<screen os="rhel;centos;fedora;sles;opensuse"><prompt>#</prompt> <userinput>service network restart</userinput></screen>
|
|
</step>
|
|
</procedure>
|
|
<procedure>
|
|
<title>To configure name resolution:</title>
|
|
<step>
|
|
<para>Set the hostname of the node to <code>network</code>.</para>
|
|
</step>
|
|
<step>
|
|
<para>Edit the <filename>/etc/hosts</filename> file to contain the
|
|
following:</para>
|
|
<programlisting># network
|
|
10.0.0.21 network
|
|
|
|
# controller
|
|
10.0.0.11 controller
|
|
|
|
# compute1
|
|
10.0.0.31 compute1</programlisting>
|
|
<warning os="ubuntu;debian">
|
|
<para>You must remove or comment the line beginning with
|
|
<literal>127.0.1.1</literal>.</para>
|
|
</warning>
|
|
</step>
|
|
</procedure>
|
|
</section>
|
|
<section xml:id="basics-neutron-networking-compute-node">
|
|
<title>Compute node</title>
|
|
<procedure>
|
|
<title>To configure networking:</title>
|
|
<step>
|
|
<para>Configure the first interface as the management interface:</para>
|
|
<para>IP address: 10.0.0.31</para>
|
|
<para>Network mask: 255.255.255.0 (or /24)</para>
|
|
<para>Default gateway: 10.0.0.1</para>
|
|
<note>
|
|
<para>Additional compute nodes should use 10.0.0.32, 10.0.0.33,
|
|
and so on.</para>
|
|
</note>
|
|
</step>
|
|
<step>
|
|
<para>Configure the second interface as the instance tunnels
|
|
interface:</para>
|
|
<para>IP address: 10.0.1.31</para>
|
|
<para>Network mask: 255.255.255.0 (or /24)</para>
|
|
<note>
|
|
<para>Additional compute nodes should use 10.0.1.32, 10.0.1.33,
|
|
and so on.</para>
|
|
</note>
|
|
</step>
|
|
</procedure>
|
|
<procedure>
|
|
<title>To configure name resolution:</title>
|
|
<step>
|
|
<para>Set the hostname of the node to <code>compute1</code>.</para>
|
|
</step>
|
|
<step>
|
|
<para>Edit the <filename>/etc/hosts</filename> file to contain the
|
|
following:</para>
|
|
<programlisting># compute1
|
|
10.0.0.31 compute1
|
|
|
|
# controller
|
|
10.0.0.11 controller
|
|
|
|
# network
|
|
10.0.0.21 network</programlisting>
|
|
<warning os="ubuntu;debian">
|
|
<para>You must remove or comment the line beginning with
|
|
<literal>127.0.1.1</literal>.</para>
|
|
</warning>
|
|
</step>
|
|
</procedure>
|
|
</section>
|
|
<section xml:id="basics-neutron-networking-verify">
|
|
<title>Verify connectivity</title>
|
|
<para>We recommend that you verify network connectivity to the internet
|
|
and among the nodes before proceeding further.</para>
|
|
<procedure>
|
|
<step>
|
|
<para>From the <emphasis>controller</emphasis> node,
|
|
<command>ping</command> a site on the internet:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 openstack.org</userinput>
|
|
<computeroutput>PING openstack.org (174.143.194.225) 56(84) bytes of data.
|
|
64 bytes from 174.143.194.225: icmp_seq=1 ttl=54 time=18.3 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=2 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=3 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=4 ttl=54 time=17.4 ms
|
|
|
|
--- openstack.org ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3022ms
|
|
rtt min/avg/max/mdev = 17.489/17.715/18.346/0.364 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>controller</emphasis> node,
|
|
<command>ping</command> the management interface on the
|
|
<emphasis>network</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 <replaceable>network</replaceable></userinput>
|
|
<computeroutput>PING network (10.0.0.21) 56(84) bytes of data.
|
|
64 bytes from network (10.0.0.21): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from network (10.0.0.21): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from network (10.0.0.21): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from network (10.0.0.21): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- network ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>controller</emphasis> node,
|
|
<command>ping</command> the management interface on the
|
|
<emphasis>compute</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 <replaceable>compute1</replaceable></userinput>
|
|
<computeroutput>PING compute1 (10.0.0.31) 56(84) bytes of data.
|
|
64 bytes from compute1 (10.0.0.31): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from compute1 (10.0.0.31): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from compute1 (10.0.0.31): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from compute1 (10.0.0.31): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- network ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>network</emphasis> node,
|
|
<command>ping</command> a site on the internet:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 openstack.org</userinput>
|
|
<computeroutput>PING openstack.org (174.143.194.225) 56(84) bytes of data.
|
|
64 bytes from 174.143.194.225: icmp_seq=1 ttl=54 time=18.3 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=2 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=3 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=4 ttl=54 time=17.4 ms
|
|
|
|
--- openstack.org ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3022ms
|
|
rtt min/avg/max/mdev = 17.489/17.715/18.346/0.364 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>network</emphasis> node,
|
|
<command>ping</command> the management interface on the
|
|
<emphasis>controller</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 <replaceable>controller</replaceable></userinput>
|
|
<computeroutput>PING controller (10.0.0.11) 56(84) bytes of data.
|
|
64 bytes from controller (10.0.0.11): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- controller ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>network</emphasis> node,
|
|
<command>ping</command> the instance tunnels interface on the
|
|
<emphasis>compute</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 10.0.1.31</userinput>
|
|
<computeroutput>PING 10.0.1.31 (10.0.1.31) 56(84) bytes of data.
|
|
64 bytes from 10.0.1.31 (10.0.1.31): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from 10.0.1.31 (10.0.1.31): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from 10.0.1.31 (10.0.1.31): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from 10.0.1.31 (10.0.1.31): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- 10.0.1.31 ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>compute</emphasis> node,
|
|
<command>ping</command> a site on the internet:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 openstack.org</userinput>
|
|
<computeroutput>PING openstack.org (174.143.194.225) 56(84) bytes of data.
|
|
64 bytes from 174.143.194.225: icmp_seq=1 ttl=54 time=18.3 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=2 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=3 ttl=54 time=17.5 ms
|
|
64 bytes from 174.143.194.225: icmp_seq=4 ttl=54 time=17.4 ms
|
|
|
|
--- openstack.org ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3022ms
|
|
rtt min/avg/max/mdev = 17.489/17.715/18.346/0.364 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>compute</emphasis> node,
|
|
<command>ping</command> the management interface on the
|
|
<emphasis>controller</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 <replaceable>controller</replaceable></userinput>
|
|
<computeroutput>PING controller (10.0.0.11) 56(84) bytes of data.
|
|
64 bytes from controller (10.0.0.11): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from controller (10.0.0.11): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- controller ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
<step>
|
|
<para>From the <emphasis>compute</emphasis> node,
|
|
<command>ping</command> the instance tunnels interface on the
|
|
<emphasis>network</emphasis> node:</para>
|
|
<screen><prompt>#</prompt> <userinput>ping -c 4 10.0.1.21</userinput>
|
|
<computeroutput>PING 10.0.1.21 (10.0.1.21) 56(84) bytes of data.
|
|
64 bytes from 10.0.1.21 (10.0.1.21): icmp_seq=1 ttl=64 time=0.263 ms
|
|
64 bytes from 10.0.1.21 (10.0.1.21): icmp_seq=2 ttl=64 time=0.202 ms
|
|
64 bytes from 10.0.1.21 (10.0.1.21): icmp_seq=3 ttl=64 time=0.203 ms
|
|
64 bytes from 10.0.1.21 (10.0.1.21): icmp_seq=4 ttl=64 time=0.202 ms
|
|
|
|
--- 10.0.1.21 ping statistics ---
|
|
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
|
|
rtt min/avg/max/mdev = 0.202/0.217/0.263/0.030 ms</computeroutput></screen>
|
|
</step>
|
|
</procedure>
|
|
</section>
|
|
</section>
|