neutron源码分析（一）OpenStack环境搭建

一、OpenStack安装

安装一个初始化的Mitaka版本的OpenStack环境用于分析，neutron源码

序号	角色	IP地址	版本
1	controller	172.16.15.161	mitaka
2	compute01	172.16.15.162	mitaka
3	compute02	172.16.15.163	mitaka

开始安装吧

# 所有节点全部执行

使用本次安装教程，会安装ceilometer+gnocchi集成、heat、FWAAS、VPNAAS、LBAASv1等

# 所有节点全部执行
mkdir /etc/yum.repos.d/bak
mv /etc/yum.repos.d/*repo /etc/yum.repos.d/bak
cat >>  /etc/yum.repos.d/openstack-mitaka.repo << EOF
[base]
name=CentOS-$releasever - Base
baseurl=http://172.20.2.44/base 

enabled=1
gpgcheck=0

[mitaka]
name=mitaka
baseurl=http://172.20.2.44/openstack-mitaka 

enabled=1
gpgcheck=0

[epel]
name=epel
baseurl=http://172.20.2.44/epel 

enabled=1
gpgcheck=0
EOF

yum clean all
yum install python-cheetah python-gnocchi python-nova libvirt libvirt-devel libvirt-client -y

# 控制节点执行

# 控制节点执行
yum install -y openstack-packstack
packstack --gen-answer-file=openstack.txt

# 这里第一行修改compute节点对应的IP地址，这里测试compute节点IP地址是172.16.15.162,172.16.15.163，IP地址之间用逗号(,)隔开
sed -i \
-e 's@CONFIG_COMPUTE_HOSTS=.*@CONFIG_COMPUTE_HOSTS=172.16.15.162,172.16.15.163@g' \
-e 's@CONFIG_CEILOMETER_METERING_BACKEND=.*@CONFIG_CEILOMETER_METERING_BACKEND=gnocchi@g' \
-e 's@CONFIG_NAGIOS_INSTALL=.*@CONFIG_NAGIOS_INSTALL=n@g' \
-e 's@CONFIG_SWIFT_INSTALL=.*@CONFIG_SWIFT_INSTALL=n@g' \
-e 's@CONFIG_HEAT_INSTALL=.*@CONFIG_HEAT_INSTALL=y@g' \
-e 's@CONFIG_HEAT_CLOUDWATCH_INSTALL=.*@CONFIG_HEAT_CLOUDWATCH_INSTALL=y@g' \
-e 's@CONFIG_HEAT_CFN_INSTALL=.*@CONFIG_HEAT_CFN_INSTALL=y@g' \
-e 's@CONFIG_NEUTRON_FWAAS=.*@CONFIG_NEUTRON_FWAAS=y@g' \
-e 's@CONFIG_NEUTRON_VPNAAS=.*@CONFIG_NEUTRON_VPNAAS=y@g' \
-e 's@CONFIG_LBAAS_INSTALL=.*@CONFIG_LBAAS_INSTALL=y@g' \
-e 's@CONFIG_MARIADB_PW=.*@CONFIG_MARIADB_PW=root1234@g' \
-e 's@CONFIG_KEYSTONE_ADMIN_PW=.*@CONFIG_KEYSTONE_ADMIN_PW=admin@g' \
-e 's@CONFIG_KEYSTONE_API_VERSION=.*@CONFIG_KEYSTONE_API_VERSION=v3@g' openstack.txt

# 在控制节点上执行

# 控制节点执行
packstack --answer-file=openstack.txt

# 安装过程会修改yum源。这里需要执行如下指令，修改过来
sed -i 's@enabled=.*@enabled=1@g' /etc/yum.repos.d/openstack-mitaka.repo 

# 漫长的等待之后，如果不报错，进行下面操作

sed -i \
-e 's@type_drivers =.*@type_drivers = flat,vxlan@g' \
-e 's@#flat_networks =.*@flat_networks = *@g' /etc/neutron/plugins/ml2/ml2_conf.ini 

openstack-service disable ceilometer
openstack-service stop ceilometer

　　

# 在计算节点上修改

# 在计算节点1上执行ssh互信
sed -i \
-e 's@nova.*@nova:x:162:162:OpenStack Nova Daemons:/var/lib/nova:/bin/bash@g' /etc/passwd

echo nova | passwd --stdin nova

su - nova

ssh-keygen  -t rsa -f ~/.ssh/id_rsa  -P ''

ssh-copy-id  -i .ssh/id_rsa.pub nova@172.16.15.163

# 在计算节点2上执行ssh互信
sed -i \
-e 's@nova.*@nova:x:162:162:OpenStack Nova Daemons:/var/lib/nova:/bin/bash@g' /etc/passwd

# 修改成自己的计算节点IP地址

echo nova | passwd --stdin nova

su - nova

ssh-keygen  -t rsa -f ~/.ssh/id_rsa  -P ''

ssh-copy-id  -i .ssh/id_rsa.pub nova@172.16.15.162

　　

# 在控制节点上加上共享存储吧

# 分区
fdisk /dev/vdc <<EOF
n
p
1

w
EOF

# 格式化
mkfs.xfs /dev/vdc1

# 挂载
mount /dev/vdc1 /opt/nova/instances/

# NFS共享
yum -y install nfs-utils rpcbind -y

mkdir -p /opt/nova/instances
echo "/opt/nova/instances 172.16.0.0/16(rw,no_root_squash,no_all_squash,sync)" > /etc/exports
exportfs -r
chmod -R 777 /opt/nova/instances/
systemctl enable rpcbind.service
systemctl start rpcbind.service
systemctl enable nfs-server.service
systemctl start nfs-server.service

　　

# 在计算节点上用NFS共享吧

showmount -e 172.16.15.161
mount -t nfs 172.16.15.161:/opt/nova/instances /var/lib/nova/instances/
chown -R nova.nova /var/lib/nova