搭建DevStack环境

Posted on Edited on In Views:
作为一个OpenStack的初学者，要真真切切的狂舔OpenStack就必须要亲手搭建以及学习OpenStack中各个组建，以及各个组建相互之间的关系和调用，这个时候DevStack就是最好的选择。虽然网上有很多教程，但还是有一些由于OpenStack更新出现的新的坑没有人填，本文主要是记录17年底手动搭建DevStack过程，以及总结。

快速开始

安装Linux

DevStack环境适用于Ubuntu 16.04/17.04,Fedore 24/25,CentOS/RHEL 7,Debian和OpenSUSE。

下面使用的是CentOS 7.3

1
2
3
4
[root@Mitaka ~]# cat /etc/redhat-release 
CentOS Linux release 7.3.1611 (Core) 
[root@Mitaka ~]# uname -a 
Linux Mitaka 3.10.0-514.el7.x86_64 #1 SMP Tue Nov 22 16:42:41 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

网络状态

1
2
3
4
5
6
7
8
9
[root@Mitaka ~]# ifconfig 
ens160: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.50.97  netmask 255.255.255.0  broadcast 192.168.50.255
        inet6 fe80::7314:f764:fe81:8e4a  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:34:45:7b  txqueuelen 1000  (Ethernet)
        RX packets 104399  bytes 151291538 (144.2 MiB)
        RX errors 0  dropped 32  overruns 0  frame 0
        TX packets 55598  bytes 4009855 (3.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

环境搭建

安装git

1
[root@Mitaka ~]# yum install -y git

关闭selinux、iptables

1
2
3
4
5
6
[root@Mitaka keystone]# systemctl stop firewalld 
[root@Mitaka keystone]# systemctl disable firewalld
[root@Mitaka keystone]# setenforce 0 
[root@Mitaka keystone]# cat /etc/sysconfig/selinux 

    SELINUX=disabled

使用豆瓣pip源头

1
2
3
4
5
6
[root@Mitaka ~]# mkdir -p ~/.pip
[root@Mitaka ~]# cat ~/.pip/pip.conf 
[global]
index-url = http://mirrors.aliyun.com/pypi/simple/  
[install] 
trusted-host = mirrors.aliyun.com

使用阿里yum源

1
2
3
4
5
6
7
8
[root@Mitaka ~]# yum install -y wget 
[root@Mitaka ~]# wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
[root@Mitaka ~]# yum clean all 
[root@Mitaka ~]# yum makecache 
[root@Mitaka ~]# yum install epel-release -y
[root@Mitaka ~]# yum install python-pip -y
[root@Mitaka ~]# pip install --upgrade pip
[root@Mitaka ~]# pip install -U os-testr

安装阶段

创建stack用户

1
2
[root@Mitaka ~]# useradd -s /bin/bash -d /opt/stack -m stack
[root@Mitaka ~]# echo "stack ALL=(ALL) NOPASSWD: ALL" | sudo tee /etc/sudoers.d/stack

下载DevStack

1
2
3
[root@Mitaka ~]# sudo su - stack
[stack@Mitaka ~]$ cd
[stack@Mitaka ~]$ git clone https://git.openstack.org/openstack-dev/devstack

创建local.conf配置文件

1
2
3
4
5
6
7
[stack@Mitaka ~]$ cd devstack/
[stack@Mitaka devstack]$ cat local.conf 
[[local|localrc]]
ADMIN_PASSWORD=daemon
DATABASE_PASSWORD=$ADMIN_PASSWORD
RABBIT_PASSWORD=$ADMIN_PASSWORD
SERVICE_PASSWORD=$ADMIN_PASSWORD

开始安装

1
[stack@Mitaka devstack]$ ./stack.sh

这个过程会持续15-20分钟，这个时间取决于网络下载速度。

错误总结

当安装出现问题的时候，首先清除当前环境，然后修改配置文件之后再次执行

1
2
[stack@Mitaka devstack]$ ./unstack.sh 
[stack@Mitaka devstack]$ ./stack.sh

出现 generate-subunit

1
2
3
4
5
6
2016-07-27 08:40:04.711 | ./stack.sh:686:git_clone
2016-07-27 08:40:04.711 | /devstack/functions-common:444:git_timed
2016-07-27 08:40:04.711 | /devstack/functions-common:510:die
2016-07-27 08:40:04.713 | [ERROR] /devstack/functions-common:510 git call failed: [git clone git://git.openstack.org/openstack/requirements.git /opt/stack/requirements]
2016-07-27 08:40:05.715 | Error on exit
2016-07-27 08:40:05.716 | ./stack.sh: line 463: generate-subunit: command not found

解决办法：

1
2
3
[root@Mitaka ~]# yum install python-pip -y
[root@Mitaka ~]# pip install --upgrade pip
[root@Mitaka ~]# pip install -U os-testr

出现nova-api did not start

1
[ERROR] /opt/stack/devstack/lib/nova:816 nova-api did not start

根据

http://openstack.10931.n7.nabble.com/can-t-install-devstack-nova-api-did-not-start-td17280.html

所描述

nova-api did not start

解决办法：

1
[root@Mitaka nova]# pip install oslo.config

出现keystone not start

1
[ERROR] /opt/stack/devstack/lib/keystone:567 keystone did not start

解决办法：

在local.conf中添加

1
2
HOST_IP=192.168.50.97
SERVICE_HOST=127.0.0.1

第二个节点出现

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
2017-12-08 03:39:15.552 | +functions:wait_for_compute:455            echo 'Didn'\''t find service registered by hostname after 60 seconds'
2017-12-08 03:39:15.552 | Didn't find service registered by hostname after 60 seconds
2017-12-08 03:39:15.558 | +functions:wait_for_compute:456            openstack --os-cloud devstack-admin --os-region RegionOne compute service list
2017-12-08 03:39:18.400 | +----+------------------+---------+----------+---------+-------+----------------------------+
2017-12-08 03:39:18.400 | | ID | Binary           | Host    | Zone     | Status  | State | Updated At                 |
2017-12-08 03:39:18.400 | +----+------------------+---------+----------+---------+-------+----------------------------+
2017-12-08 03:39:18.400 | |  3 | nova-scheduler   | stack01 | internal | enabled | up    | 2017-12-07T09:25:01.000000 |
2017-12-08 03:39:18.400 | |  5 | nova-consoleauth | stack01 | internal | enabled | up    | 2017-12-07T09:24:59.000000 |
2017-12-08 03:39:18.401 | |  6 | nova-conductor   | stack01 | internal | enabled | up    | 2017-12-07T09:24:57.000000 |
2017-12-08 03:39:18.401 | |  1 | nova-conductor   | stack01 | internal | enabled | up    | 2017-12-07T09:24:57.000000 |
2017-12-08 03:39:18.401 | |  2 | nova-compute     | stack01 | nova     | enabled | up    | 2017-12-07T09:25:05.000000 |
2017-12-08 03:39:18.401 | +----+------------------+---------+----------+---------+-------+----------------------------+
2017-12-08 03:39:18.488 | +functions:wait_for_compute:458            return 124
2017-12-08 03:39:18.496 | +lib/nova:is_nova_ready:1                  exit_trap
2017-12-08 03:39:18.504 | +./stack.sh:exit_trap:493                  local r=124
2017-12-08 03:39:18.512 | ++./stack.sh:exit_trap:494                  jobs -p
2017-12-08 03:39:18.520 | +./stack.sh:exit_trap:494                  jobs=
2017-12-08 03:39:18.528 | +./stack.sh:exit_trap:497                  [[ -n '' ]]
2017-12-08 03:39:18.535 | +./stack.sh:exit_trap:503                  '[' -f /tmp/tmp.rcd8I7zW4x ']'
2017-12-08 03:39:18.541 | +./stack.sh:exit_trap:504                  rm /tmp/tmp.rcd8I7zW4x
2017-12-08 03:39:18.549 | +./stack.sh:exit_trap:508                  kill_spinner
2017-12-08 03:39:18.556 | +./stack.sh:kill_spinner:407               '[' '!' -z '' ']'
2017-12-08 03:39:18.563 | +./stack.sh:exit_trap:510                  [[ 124 -ne 0 ]]
2017-12-08 03:39:18.569 | +./stack.sh:exit_trap:511                  echo 'Error on exit'
2017-12-08 03:39:18.569 | Error on exit

解决办法

暂无，最新的坑，暂时没有看到有人填。

安装成功

安装成功之后，界面会显示

DevStack安装成功图

stack.sh中的执行顺序：

  1. 支持OS类型包括Ubuntu 12.04或以上；Fedora F18或以上
  2. 禁止使用root运行
  3. 读取local.conf
  4. 检查stackrc文件是否存在
  5. 检查Devstack是不是已经在运行。如果在运行，则退出
  6. 配置目标安装目录，包括创建目录，设置权限
  7. 配置hostname，logging等
  8. 读取各组件的安装和启动script
  9. 如果没有配置密码，则需要用户输入各密码
  10. 配置数据库
  11. 配置Keystone
  12. 安装各pre-condition包
  13. 安装client包
  14. 安装和配置keystone，swift，glance，cinder，neutron，nova，horizon，ceilometer，heat，CA
  15. 配置数据库
  16. 配置screen
  17. 创建个组件使用的账号
  18. 初始化和启动horizon
  19. 启动swift，glance，
  20. 安装images
  21. 启动swift，nova_api，neutron，nova，cinder，ceilometer，heat

参考资料：

http://blog.csdn.net/zhaihaifei/article/details/40893823