openstack devstack 脚本安装（多结点，控制结点安装）

来自DEVSTACK官方文档，加入了网易的更新源，电信的速度1m/s以上，不用一个小时搞掂
volume在装系统时分了个lvm，/dev/sda6
swift在装系统时分了个lvm， /dev/sda7
localrc和local.sh要放在devstack目录下，

/etc/network/interfaces:
##
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet static
address 10.50.9.230
netmask 255.255.255.0
gateway 10.50.9.254
dns-nameservers 8.8.8.8
##



###################################################################
cd /etc/apt/
wget http://mirrors.163.com/.help/sources.list.precise
mv sources.list sources.list_copy
mv sources.list.precise sources.list
cat >>sources.list<deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-proposed/folsom main
deb http://ubuntu-cloud.archive.canonical.com/ubuntu precise-updates/folsom main
EOF
cat sources.list_copy >> sources.list
########################################
更新操作:

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 5EDB1B62EC4926EA
apt-get update

apt-get install -y git



groupadd stack
useradd -g stack -s /bin/bash -d /opt/stack -m stack
echo "stack ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers

用stack登陆

mkdir ~/.ssh; chmod 700 ~/.ssh
echo "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQCyYjfgyPazTvGpd8OaAvtU2utL8W6gWC4JdRS1J95GhNNfQd657yO6s1AH5KYQWktcE6FO/xNUC2reEXSGC7ezy+sGO1kj9Limv5vrvNHvF1+wts0Cmyx61D2nQw35/Qz8BvpdJANL7VwP/cFI/p3yhvx2lsnjFE3hN8xRB2LtLUopUSVdBwACOVUmH2G+2BWMJDjVINd2DPqRIA4Zhy09KJ3O1Joabr0XpQL0yt/I9x8BVHdAx6l9U0tMg9dj5+tAjZvMAFfye3PJcYwwsfJoFxC8w/SLtqlFX7Ehw++8RtvomvuipLdmWCy+T9hIkl+gHYE4cS3OIqXH7f49jdJf [email protected]" > ~/.ssh/authorized_keys


git clone git://github.com/openstack-dev/devstack.git
cd devstack


############
localrc 放到/devstack下, local.sh 在example文件夹中，也把它拿到devstack目录下
##########
In the multi-node configuration the first 10 or so IPs in the private subnet are usually reserved. Add this to local.sh to have it run after every stack.sh run:

for i in `seq 2 10`; do /opt/stack/nova/bin/nova-manage fixed reserve 10.4.128.$i; done

cinder:
pvcreate /dev/sda6
vgcreate stack-volumes /dev/sda6


Fire up OpenStack:

./stack.sh

A stream of activity ensues. When complete you will see a summary of stack.sh's work, including the relevant URLs, accounts and passwords to poke at your shiny new OpenStack. The most recent log file is available in stack.sh.log.
Configure Compute Nodes

The compute nodes only run the OpenStack worker services. For additional machines, create a localrc with:

HOST_IP=192.168.42.12 # change this per compute node
FLAT_INTERFACE=eth0
FIXED_RANGE=10.4.128.0/20
FIXED_NETWORK_SIZE=4096
FLOATING_RANGE=192.168.42.128/25
MULTI_HOST=1
LOGFILE=/opt/stack/logs/stack.sh.log
ADMIN_PASSWORD=labstack
MYSQL_PASSWORD=supersecret
RABBIT_PASSWORD=supersecrete
SERVICE_PASSWORD=supersecrete
SERVICE_TOKEN=xyzpdqlazydog
MYSQL_HOST=192.168.42.11
RABBIT_HOST=192.168.42.11
GLANCE_HOSTPORT=192.168.42.11:9292
ENABLED_SERVICES=n-cpu,n-net,n-api,c-sch,c-api,c-vol

Fire up OpenStack:

./stack.sh

A stream of activity ensues. When complete you will see a summary of stack.sh's work, including the relevant URLs, accounts and passwords to poke at your shiny new OpenStack. The most recent log file is available in stack.sh.log.
Cleaning Up After DevStack

Shutting down OpenStack is now as simple as running the included unstack.sh script:

./unstack.sh

Sometimes running instances are not cleaned up. DevStack attempts to do this when it runs but there are times it needs to still be done by hand:

sudo rm -rf /etc/libvirt/qemu/inst*
sudo virsh list | grep inst | awk '{print $1}' | xargs -n1 virsh destroy

Options pimp your stack
Additional Users

DevStack creates two users and two tenants, admin and demo. admin is exactly what it sounds like, a priveleged administrative account that is a member of both the admin and demo tenants. demo is a normal user account that is only a menber of the demo tenant. Creating additional OpenStack users can be done through the dashboard, sometimes it is easier to do them in bulk from a script, especially since they get blown away every time stack.sh runs. The following steps are ripe for scripting:

# Get admin creds
. openrc admin admin
        
# List existing tenants
keystone tenant-list

# List existing users
keystone user-list

# Add a user and tenant
NAME=bob
PASSWORD=BigSecrete
TENANT=$NAME
keystone tenant-create --name=$NAME
keystone user-create --name=$NAME --pass=$PASSWORD
keystone user-role-add --user-id= --tenant-id= --role-id=
# member-role-id comes from the existing member role created by stack.sh
# keystone role-list

Swift

Swift requires a significant amount of resources and is disabled by default in DevStack. The support in DevStack is geared toward a minimal installation but can be used for testing. To implement a true multi-node test of Swift required more than DevStack provides. Enabling it is as simple as enabling the swift service in localrc:

enable_service swift

Swift will put its data files in SWIFT_DATA_DIR (default /opt/stack/data/swift). The size of the data 'partition' created (really a loop-mounted file) is set by SWIFT_LOOPBACK_DISK_SIZE. The Swift config files are located in SWIFT_CONFIG_DIR (default /etc/swift). All of these settings can be overridden in (wait for it...) localrc.
Volumes

DevStack will automatically use an existing LVM volume group named stack-volumes to store cloud-created volumes. If stack-volumes doesn't exist, DevStack will set up a 5Gb loop-mounted file to contain it. This obviously limits the number and size of volumes that can be created inside OpenStack. The size can be overridden by setting VOLUME_BACKING_FILE_SIZE in localrc.

stack-volumes can be pre-created on any physical volume supported by Linux's LVM. The name of the volume group can be changed by setting VOLUME_GROUP in localrc. stack.sh deletes all logical volumes in VOLUME_GROUP that begin with VOLUME_NAME_PREFIX as part of cleaning up from previous runs. It is recommended to not use the root volume group as VOLUME_GROUP.

The details of creating the volume group depends on the server hardware involved but looks something like this:

pvcreate /dev/sdc
vgcreate stack-volumes /dev/sdc

Syslog

DevStack is capable of using rsyslog to agregate logging across the cluster. It is off by default; to turn it on set SYSLOG=True in localrc. SYSLOG_HOST defaults to HOST_IP; on the compute nodes it must be set to the IP of the cluster controller to send syslog output there. In the example above, add this to the compute node localrc:

SYSLOG_HOST=192.168.42.11

Using Alternate Repositories/Branches

The git repositories for all of the OpenStack services are defined in stackrc. Since this file is a part of the DevStack package changes to it will probably be overwritten as updates are applied. Every setting in stackrc can be redefined in localrc.

To change the repository or branch that a particular OpenStack service is created from, simply change the value of *_REPO or *_BRANCH corresponding to that service.

After making changes to the repository or branch, if RECLONE is not set in localrc it may be necessary to remove the corresponding directory from /opt/stack to force git to re-clone the repository.

For example, to pull Nova from a proposed release candidate in the primary Nova repository:

NOVA_BRANCH=rc-proposed

To pull Glance from an experimental fork:

GLANCE_BRANCH=try-something-big
GLANCE_REPO=https://github.com/mcuser/glance.git

Notes stuff you might need to know
Reset the Bridge

How to reset the bridge configuration:

sudo brctl delif br100 eth0.926
sudo ip link set dev br100 down
sudo brctl delbr br100

Set MySQL Password

If you forgot to set the root password you can do this:

mysqladmin -u root -pnova password 'supersecret'

? Openstack Foundation 2011-2013 — this is not an official OpenStack project...
下篇博文是 计算结点安装