Enter a default password to be used. Leave blank for a randomly generated one. :
4.输入每个wsgi服务的进程数，默认等于cpu的核数：
Enter the amount of service workers/threads to use for each service. Leave blank to use the default. [%{::processorcount}] :
5.确认是否要安装MariaDB数据库,默认为y：
Should Packstack install MariaDB [y|n] [y] :
6.确认是否安装Openstack组件，可以根据需要定制服务：
Should Packstack install OpenStack Image Service (Glance) [y|n] [y] :
Should Packstack install OpenStack Block Storage (Cinder) [y|n] [y] :
Should Packstack install OpenStack Shared File System (Manila) [y|n] [n] :
Should Packstack install OpenStack Compute (Nova) [y|n] [y] :
Should Packstack install OpenStack Networking (Neutron) [y|n] [y] :
Should Packstack install OpenStack Dashboard (Horizon) [y|n] [y] :
Should Packstack install OpenStack Object Storage (Swift) [y|n] [y] :
Should Packstack install OpenStack Metering (Ceilometer) [y|n] [y] :
Should Packstack install OpenStack Telemetry Alarming (Aodh) [y|n] [y] :
Should Packstack install OpenStack Resource Metering (Gnocchi) [y|n] [y] :
Should Packstack install OpenStack Clustering (Sahara). If yes it'll also install Heat. [y|n] [n] :
Should Packstack install OpenStack Orchestration (Heat) [y|n] [n] :
Should Packstack install OpenStack Database (Trove) [y|n] [n] :
Should Packstack install OpenStack Bare Metal (Ironic) [y|n] [n] :
Should Packstack install OpenStack client tools [y|n] [y] :
7.Packstack为所有服务配置NTP服务来校准系统时间，NTP的设置只对多节点有意义：
Enter a comma separated list of NTP server(s). Leave plain if Packstack should not install ntpd on instances:
8.是否安装Nagios监控服务：
Should Packstack install Nagios to monitor OpenStack hosts [y|n] [y] :
9.哪些服务器在本次安装中被排除在外：
Enter a comma separated list of server(s) to be excluded. Leave plain if you don't need to exclude any server.:
10.是否启用调试模式：
Do you want to run OpenStack services in debug mode [y|n] [n] :
11.指定控制器的地址:
Enter the controller host [10.211.55.8] :
12.指定计算节点的地址：
Enter list of compute hosts [10.211.55.8] :
13.指定网络节点的地址：
Enter list of network hosts [10.211.55.8] :
14.是否使用VMWare vCenter作为hypervisor和datastore的后端：
Do you want to use VMware vCenter as hypervisor and datastore [y|n] [n] :
15.指定是否使用不支持的参数，推荐使用默认设置：
Enable this on your own risk. Do you want to use unsupported parameters [y|n] [n] :
16.网卡名称是否被自动识别为子网+CIDR的格式：
Should interface names be automatically recognized based on subnet CIDR [y|n] [n] :
17.是否为每个服务器订阅Extra Packstacks for Enterprise Linux(EPEL)，建议使用默认设置：
To subscribe each server to EPEL enter "y" [y|n] [n] :
18.是否启用自定义的软件包仓库:
Enter a comma separated list of URLs to any additional yum repositories to install:
19.是否启用rdo test：
To enable rdo testing enter "y" [y|n] [n] :
20.是否启用Red Hat订阅，跳过即可：
To subscribe each server to Red Hat enter a username :
To subscribe each server with RHN Satellite enter RHN Satellite server URL:
21.ssl证书相关的操作：
Enter the filename of the SSL CAcertificate, if the CONFIG_SSL_CACERT_SELFSIGN is set to y the path will be CONFIG_SSL_CERT_DIR/certs/selfcert.crt [/etc/pki/tls/certs/selfcert.crt] :
Enter the filename of the SSL CAcertificate Key file, if the CONFIG_SSL_CACERT_SELFSIGN is set to y the path will be CONFIG_SSL_CERT_DIR/keys/selfkey.key [/etc/pki/tls/private/selfkey.key] :
Enter the path to use to store generated SSL certificates in [~/packstackca/] :
Should packstack use selfsigned CAcert. [y|n] [y] :
Enter the ssl certificates subject country. [--] :
Enter the ssl certificates subject state. [State] :
Enter the ssl certificate subject location. [City] :
Enter the ssl certificate subject organization. [openstack] :
Enter the ssl certificate subject organizational unit. [packstack] :
Enter the ssl certificaate subject common name. [centos-7.1.shared] :
Enter the ssl certificate subject admin email. [admin@centos-7.1.shared] :
22.配置AMQP服务，默认会使用RabbitMQ作为backend，不启用身份验证和SSL：
Set the AMQP service backend [rabbitmq] [rabbitmq] :
Enter the host for the AMQP service [10.211.55.8] :
Enable SSL for the AMQP service? [y|n] [n] :
Enable Authentication for the AMQP service? [y|n] [n] :
23.配置MariaDB服务
Enter the IP address of the MariaDB server [10.211.55.8] :
Enter the password for the MariaDB admin user :
Confirm password :
Enter the password for the Keystone DB access :
Confirm password :
Enter y if cron job for removing soft deleted DB rows should be created [y|n] [y] :
Confirm password [y|n] [y] :
Region name [RegionOne] :
Enter the email address for the Keystone admin user [root@localhost] :
Enter the username for the Keystone admin user [admin] :
Enter the password for the Keystone admin user :
Confirm password :
Enter the password for the Keystone demo user :
Confirm password :
Enter the Keystone identity backend type. [sql|ldap] [sql] :
25.配置Image服务，包括设置数据库连接密码，glance用户密码，后端存储：
Enter the password for the Glance DB access :
Confirm password :
Enter the password for the Glance Keystone access :
Confirm password :
Glance storage backend [file|swift] [file] :
26.配置块存储服务，包括设置数据库连接密码，cinder用户和密码:
Enter the password for the Cinder DB access :
Confirm password :
Enter y if cron job for removing soft deleted DB rows should be created [y|n] [y] :
Confirm password [y|n] [y] :
Enter the password for the Cinder Keystone access :
Confirm password :
Enter the Cinder backend to be configured [lvm|gluster|nfs|vmdk|netapp|solidfire] [lvm] :
Should Cinder's volumes group be created (for proof-of-concept installation)? [y|n] [y] :
Enter Cinder's volumes group usable size [20G] :
Enter y if cron job for removing soft deleted DB rows should be created [y|n] [y] :
Confirm password [y|n] [y] :
27.配置计算服务，包括flavor,资源虚拟比，迁移，虚拟化软件等参数的设置：
Should Packstack manage default Nova flavors [y|n] [y] :
Enter the CPU overcommitment ratio. Set to 1.0 to disable CPU overcommitment [16.0] :
Enter the RAM overcommitment ratio. Set to 1.0 to disable RAM overcommitment [1.5] :
Enter protocol which will be used for instance migration [tcp|ssh] [tcp] :
Enter the compute manager for nova migration [nova.compute.manager.ComputeManager] :
Enter the path to a PEM encoded certificate to be used on the https server, leave blank if one should be generated, this certificate should not require a passphrase:
Enter the SSL keyfile corresponding to the certificate if one was entered:
Enter the PCI passthrough array of hash in JSON style for controller eg. [{'vendor_id':'1234', 'product_id':'5678', 'name':'default'}, {...}] :
Enter the PCI passthrough whitelist as array of hash in JSON style for controller eg. [{'vendor_id':'1234', 'product_id':'5678', 'name':'default'}, {...}]:
The nova hypervisor that should be used. Either qemu or kvm. [qemu|kvm] [%{::default_hypervisor}] :
Confirm password [qemu|kvm] [%{::default_hypervisor}] :
28.配置网络服务，包括从组件，接口，网络驱动等细节的设置：
Enter the password for Neutron Keystone access :
Confirm password :
Enter the password for Neutron DB access :
Confirm password :
Enter the ovs bridge the Neutron L3 agent will use for external traffic, or 'provider' if using provider networks. [br-ex] :
Enter Neutron metadata agent password :
Confirm password :
Should Packstack install Neutron LBaaS [y|n] [n] :
Should Packstack install Neutron L3 Metering agent [y|n] [y] :
Would you like to configure neutron FWaaS? [y|n] [n] :
Would you like to configure neutron VPNaaS? [y|n] [n] :
Enter a comma separated list of network type driver entrypoints [local|flat|vlan|gre|vxlan] [vxlan] :
Enter a comma separated ordered list of network_types to allocate as tenant networks [local|vlan|gre|vxlan] [vxlan] :
Enter a comma separated ordered list of networking mechanism driver entrypoints [logger|test|linuxbridge|openvswitch|hyperv|ncs|arista|cisco_nexus|mlnx|l2population|sriovnicswitch] [openvswitch] :
Enter a comma separated list of physical_network names with which flat networks can be created [*] :
Enter a comma separated list of physical_network names usable for VLAN:
Enter a comma separated list of <tun_min>:<tun_max> tuples enumerating ranges of GRE tunnel IDs that are available for tenant network allocation:
Enter a multicast group for VXLAN:
Enter a comma separated list of <vni_min>:<vni_max> tuples enumerating ranges of VXLAN VNI IDs that are available for tenant network allocation [10:100] :
Enter the name of the L2 agent to be used with Neutron [linuxbridge|openvswitch] [openvswitch] :
Enter a comma separated list of supported PCI vendor devices, defined by vendor_id:product_id according to the PCI ID Repository. [['15b3:1004', '8086:10ca']] :
Set to y if the sriov agent is required [y|n] [n] :
Enter a comma separated list of interface mappings for the Neutron ML2 sriov agent:
Enter a comma separated list of bridge mappings for the Neutron openvswitch plugin:
Enter a comma separated list of OVS bridge:interface pairs for the Neutron openvswitch plugin:
Enter a comma separated list of bridges for the Neutron OVS plugin in compute nodes. They must be included in os-neutron-ovs-bridge-mappings and os-neutron-ovs-bridge-interfaces.:
Enter interface with IP to override the default tunnel local_ip:
Enter comma separated list of subnets used for tunneling to make them allowed by IP filtering.:
Enter VXLAN UDP port number [4789] :
29.设置Dashboard服务，是否开启Https服务：
Would you like to set up Horizon communication over https [y|n] [n] :
30.配置对象存储服务,包括设备逻辑，zone，replicas,文件系统和块设备大小的配置：
Enter the Swift Storage devices e.g. /path/to/dev:
Enter the number of swift storage zones, MUST be no bigger than the number of storage devices configured [1] :
Enter the number of swift storage replicas, MUST be no bigger than the number of storage zones configured [1] :
Enter FileSystem type for storage nodes [xfs|ext4] [ext4] :
Enter the size of the storage device (eg. 2G, 2000M, 2000000K) [2G] :
31.是否启用Tempest服务:
Would you like to provision for demo usage and testing [y|n] [y] :
Would you like to configure Tempest (OpenStack test suite). Note that provisioning is only supported for all-in-one installations. [y|n] [n] :
32.设置Floating IP网段
Enter the network address for the floating IP subnet [172.24.4.224/28] :
33.设置测试镜像的名称，源地址，格式等配置：
Enter the name to be assigned to the demo image [cirros] :
Enter the location of an image to be loaded into Glance [http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img] :
Enter the format of the demo image [qcow2] :
Enter the name of a user to use when connecting to the demo image via ssh [cirros] :
Enter the name to be assigned to the uec image used for tempest [cirros-uec] :
Enter the location of a uec kernel to be loaded into Glance [http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-kernel] :
Enter the location of a uec ramdisk to be loaded into Glance [http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-initramfs] :
Enter the location of a uec disk image to be loaded into Glance [http://download.cirros-cloud.net/0.3.4/cirros-0.3.4-x86_64-disk.img] :
Would you like to configure the external ovs bridge [y|n] [y] :
34.设置Ceilometer,Aodh,Gnocchi服务：
Enter the password for Gnocchi DB access :
Confirm password :
Enter the password for the Gnocchi Keystone access :
Confirm password :
Enter the password for the Ceilometer Keystone access :
Confirm password :
Enter the Ceilometer service name. [ceilometer|httpd] [httpd] :
Enter the host for the MongoDB server [10.211.55.8] :
Enter the host for the Redis server [10.211.55.8] :
Enter the port of the redis server(s) [6379] :
Enter the password for the Aodh Keystone access :
Confirm password :
35.设置nagios用户的密码:
Enter the password for the nagiosadmin user :
36.最后一步，确认生成的配置是否符合期望，输入yes，并按回车键开始执行操作：
Packstack will be installed using the following configuration:
==============================================================
ssh-public-key: /root/.ssh/id_rsa.pub
default-password:
service-workers: %{::processorcount}
mariadb-install: y
......
aodh-ks-passwd: ********
nagios-passwd: ********
Proceed with the configuration listed above? (yes|no):
非交互式方式运行
使用下述命令生成一个answer file:
# packstack --gen-answer-file=my_file
使用vim打开文件,每个配置项都含有详细的说明：
[general]
# Path to a public key to install on servers. If a usable key has not
# been installed on the remote servers, the user is prompted for a
# password and this key is installed so the password will not be
# required again.
CONFIG_SSH_KEY=/root/.ssh/id_rsa.pub
# Default password to be used everywhere (overridden by passwords set
# for individual services or users).
CONFIG_DEFAULT_PASSWORD=
# The amount of service workers/threads to use for each service.
# Useful to tweak when you have memory constraints. Defaults to the
# amount of cores on the system.
CONFIG_SERVICE_WORKERS=%{::processorcount}
# Specify 'y' to install MariaDB. ['y', 'n']
CONFIG_MARIADB_INSTALL=y
# Specify 'y' to install OpenStack Image Service (glance). ['y', 'n']
CONFIG_GLANCE_INSTALL=y
......
def loadPlugins():
"""
Load All plugins from ./plugins
"""
sys.path.append(basedefs.DIR_PLUGINS)
sys.path.append(basedefs.DIR_MODULES)
fileList = [f for f in os.listdir(basedefs.DIR_PLUGINS) if f[0] != "_"]
fileList = sorted(fileList, cmp=plugin_compare) #使用plugin_compare函数作为key进行排序
for item in fileList:
# Looking for files that end with ###.py, example: a_plugin_100.py
match = re.search("^(.+\_\d\d\d)\.py$", item)
if match:
try:
moduleToLoad = match.group(1)
logging.debug("importing module %s, from file %s", moduleToLoad, item)
moduleobj = __import__(moduleToLoad)
moduleobj.__file__ = os.path.join(basedefs.DIR_PLUGINS, item)
globals()[moduleToLoad] = moduleobj
checkPlugin(moduleobj)
controller.addPlugin(moduleobj)
except:
logging.error("Failed to load plugin from file %s", item)
logging.error(traceback.format_exc())
raise Exception("Failed to load plugin from file %s" % item)
def plugin_compare(x, y):
"""
Used to sort the plugin file list
according to the number at the end of the plugin module
"""
x_match = re.search(".+\_(\d\d\d)", x)
x_cmp = x_match.group(1)
y_match = re.search(".+\_(\d\d\d)", y)
y_cmp = y_match.group(1)
return int(x_cmp) - int(y_cmp)
prescript_000.py是第一个被加载的plugin，顾名思义它提供了一些全局的初始化设置，比如ssh public key，default_password，workers的进程数量，是否开启各个OpenStack服务的设置等等，同时它会在被管理的主机上执行一些预备任务：生成authorized_keys文件，安装并开启epel源和rdo源，安装puppet软件包依赖和module依赖等等。