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cloud_ruiy 2016-03-25 19:28:00 浏览389

真正的服务器派生出线程 和子进程处理多个连接
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tlent 23
ftp 21
80listen default
mstsc 3389 ->10061
26 10051

netstat -na | findstr LISTEN

all managed through a dashboard that gives administrators control while empowering their users to provision resources through a web interface
contents search in this guide
the openstack system consists of several key projects that you install sepqrately

determine and implement necessary core and optional services to meet performance and reduncy requirements
increase security using methods such firewalls,encryption,and service policies
implement a deployment tool such as Ansible,Chef,Puppet
or Salt to automate deployment and management of the production environment;
Networking agents reside on controller node instead of one or more dedicated network nodes;
for information on production architectures,See the architecture design guide operations guide networking guide
hardware dedimecode;
core component
optional components;
identity image management portions of compute/Networking
various networking agents and the dashboard;
it also includes supports services such as SQL database message queue and NTP;
requires a minimum of two network interfaces;

the compute node runs the hypervisor portion of compute
compute node also runs a networking service agent that connects instances to virtual networks and provides firewalling services to instances via security groups;

for simplicity service traffic between compute nodes and this node uses the management network
production environments should implement a sepqrate storage network to increase performance and security;

can deploy more than one block storage node
increase performance and security

networking option 1: provider networks

The provider networks option deploys the openstack networking service in the simplest way possible with primarily layer-2

essentialy,it bridges virtual networks to physical networks and relies on phycical network infrastructure for layer-3(routing)service,additionally aDHCP service provides ip address information to instance;
relies on physical network infrastructure for layer-3(routing) services

this option lacks supports for self-service private networks,layer-3(routing)services,and advanced services such as LBaas and FWaas

consider the self-service  networks option if you desire these feature

provider netwoorks

controller node compute nodes block storage nodes;
service layer
sql mq network queue identity image service compute anagement
networking management
networking ml2 plug-in
linux network utilities
networking linux bridge agent
networking dhcp agent

networking linux bridge agent
linux network utilities;

networking ml2 plug-in;
kvm hypervisor
linux network utilities
networking linux bridge agent
telemetry agent;

service layout  compute nodes
kvm hypervisor
linux network utilities networking

linux bridge agent;
iscsi target
block stoage volume service

object storage nodes;
object storage account service
object storage container service
object storage object service;


ml2 l3
Although most environments include identity
can operate independently
dashboard requires at least the image service compute and networking;

core services;

to minimize clutter minimize
provide more resources for
single disk partiition on each node wotks for most basic installations
should consider logical volume manager
one physcial server can support multiple nodes eachh with almost any number of ability to take periodic periodic periodic snap shots
throughout the installation process and roll back;
to a
reduce performance particularly hypervisor and/or processor lacks support for hardware acceleration of nested VMs;

make sure your hypervisor provides a way to disable MAC address filtering on the public network interface;

support various security methods
supporting services including the database and message broker support at least password security
to easethe installation process
guide only covers password security where abb
create secure passwords manually
generate them using a tool such as pwgen
openssl rand -hex 10
to highlight the importance of network separ
the public interface uses a special configuration whithout an ip address assigned to it
configure the second interface as the public interface
replace with the actual interface name do not change the hwaddr and uuid keys;
device = interface_name
type = ethernet
onboot = yes
bootproto = none;
start the NTP service and configure

created symlink from
/etc/systemd/system/ to
disable or remove any automatic update services they can impact your openstack environments

breaking backwards compatibility
preferably pin packages versions using the yum-versionlock plugin

enable additional repositories using the subscription manager;
enable additional repositories using the subscriptions manager

subscription-manager repos --enable=rhel-7-server-optional-rpms
does not require these repositories
base extras updates
finalize the installation
upgrade the packages on your host;
most openstack services use an SQL database to store information
the database typically runs on the controller node
The procedures in this guide use depending on the distribution
create and edit and complete the following actions
enable access by other nodes via the management network;
set the following keys to enable useful options and the utf-8 character set;
finalize installation
start the database service and configure it to start when system boots;
install and configure components;
协调coordinate coordinate
coordinate operations and status
information among service


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