devstack部署

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背景

OpenStack（以下简称OPS）是一个很庞大的系统，想要部署一个OPS需要部署很多组件。想必部署之路也是坑坑奇多。所以为了方便使用OPS，需要部署一个“all-in-one”环境的OPS

环境

  • CPU
    2U X86_64
  • Memory
    4G及以上，如果内存过小，会出现各种问题。（整个devstack-Openstack-Ocata + CentOS7.3 1611需要占用3.4G内存）
  • OS
    CentOS 7.3 1611
  • NET
    建议创建两个网络，一个用于连接外网用于做管理性工作；一个供neutron使用
  • OpenStack版本
    Ocata

部署

准备

关闭防火墙

关闭selinux

编辑/etc/selinux/config将SELINUX=enforcing改为SELINUX=disabled

关闭iptables

执行命令sudo systemctl disable iptables，关闭iptables服务

上诉两处修改若想生效需要重启系统。

安装依赖软件

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sudo yum install -y epel-release git net-tools

下载Devstack

从github上下载devstackgit clone https://github.com/openstack-dev/devstack.git，然后切换版本到Ocata git checkout stable/ocata，可使用git branch -av查看devstack所处分支

安装

创建stack用户

  1. 进入devstack目录

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    cd devstack

  2. 创建stack用户

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    sudo ./tools/create-stack-user.sh

切换用户

  1. 修改目录owner

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    sudo chown -R stack:stack ./devstack

  2. 修改/opt/stack目录访问权限

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    sudo chmod 777 /opt/stack -R
    sudo mv ./devstack /opt/stack/

  3. 切换用户

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    sudo su - stack

撰写local.conf

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[[local|localrc]]

DEST=/opt/stack/ocata
# use TryStack git mirror
GIT_BASE=http://git.trystack.cn
NOVNC_REPO=http://git.trystack.cn/kanaka/noVNC.git
SPICE_REPO=http://git.trystack.cn/git/spice/spice-html5.git

#OFFLINE=True
RECLONE=False

# Define images to be automatically downloaded during the DevStack built process.
DOWNLOAD_DEFAULT_IMAGES=False
IMAGE_URLS=",https://launchpad.net/cirros/trunk/0.3.0/+download/cirros-0.3.0-x86_64-disk.img"

HOST_IP=127.0.0.1


# Credentials
DATABASE_PASSWORD=pass
ADMIN_PASSWORD=pass
SERVICE_PASSWORD=pass
SERVICE_TOKEN=pass
RABBIT_PASSWORD=pass

HORIZON_BRANCH=stable/ocata
KEYSTONE_BRANCH=stable/ocata
NOVA_BRANCH=stable/ocata
NEUTRON_BRANCH=stable/ocata
GLANCE_BRANCH=stable/ocata
CINDER_BRANCH=stable/ocata


#keystone
KEYSTONE_TOKEN_FORMAT=UUID

##Heat
HEAT_BRANCH=stable/ocata
enable_service h-eng h-api h-api-cfn h-api-cw


## Swift
SWIFT_BRANCH=stable/ocata
ENABLED_SERVICES+=,s-proxy,s-object,s-container,s-account
SWIFT_REPLICAS=1
SWIFT_HASH=011688b44136573e209e


# Enabling Neutron (network) Service
disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service q-metering
enable_service neutron

## Neutron options
Q_USE_SECGROUP=True
FLOATING_RANGE="192.168.36.0/24"
FIXED_RANGE="10.0.0.0/24"
Q_FLOATING_ALLOCATION_POOL=start=192.168.36.55,end=192.168.36.100
PUBLIC_NETWORK_GATEWAY="192.168.36.1"
Q_L3_ENABLED=True
PUBLIC_INTERFACE=eth1
Q_USE_PROVIDERNET_FOR_PUBLIC=True
OVS_PHYSICAL_BRIDGE=br-ex
PUBLIC_BRIDGE=br-ex
OVS_BRIDGE_MAPPINGS=public:br-ex

# #VLAN configuration.
Q_PLUGIN=ml2
ENABLE_TENANT_VLANS=True

# Logging
LOGFILE=/opt/stack/logs/stack.sh.log
VERBOSE=True
LOG_COLOR=True
SCREEN_LOGDIR=/opt/stack/logs

安装OPS（all-in-one）

安装使用stack.sh脚本，卸载使用unstack.sh脚本

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$ ./stack.sh
...

=========================
DevStack Component Timing
=========================
Total runtime         1254

run_process            83
test_with_retry         4
pip_install           127
restart_apache_server  29
wait_for_service       19
yum_install            50
=========================



This is your host IP address: 127.0.0.1
This is your host IPv6 address: ::1
Horizon is now available at http://127.0.0.1/dashboard
Keystone is serving at http://127.0.0.1/identity/
The default users are: admin and demo
The password: pass

安装时遇到问题可从两个角度考虑，一个网络不通，一个内存不足。这里再次重申，内存一定要>=4G，如果网络不通或延时太大，建议使用国内镜像。

例如/opt/stack/.pip/pip.conf:

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[global]

timeout = 6000
index-url = http://pypi.douban.com/simple
trusted-host = pypi.douban.com

horizon

安装成功后，访问http://x.x.x.x/dashboard, 用户民密码见local.conf

horizon_login

参考&鸣谢