Docker与OpenStack集成实战
1、计算节点安装Dockerroot@compute2: ~# apt install docker.io -y
或
root@compute2:~# sh -c "echo deb https://get.docker.io/ubuntu docker main >> /etc/apt/sources.list.d/docker.list"
root@compute2:~# apt-get update
root@compute2:~# apt-get install lxc-docker
root@compute2: ~# apt install docker.io -y
查看当前版本
root@compute2:/var/lib/docker# docker --version
Docker version 1.12.0, build 8eab29e
root@compute2:~# docker -v
Docker version 1.12.0, build 8eab29e
root@compute2:~# dpkg -l | grep docker
rcdocker.io 1.11.2-0ubuntu5~16.04 amd64 Linux container runtime
iilxc-docker 1.9.1 amd64 Linux container runtime
iilxc-docker-1.9.1 1.9.1 amd64 Linux container runtime
查找镜像
root@compute2:~# docker search ubuntu
dorapro/ubuntu ubuntu image 0
konstruktoid/ubuntu Ubuntu base image 0
uvatbc/ubuntu Ubuntu images with unprivileged user 0
2、下载Ubuntu镜像
root@compute2: ~#docker pull ubuntu
Using default tag: latest
latest: Pulling from library/ubuntu
2f0243478e1f: Pull complete
d8909ae88469: Pull complete
820f09abed29: Pull complete
01193a8f3d88: Pull complete
Digest: sha256:8e2324f2288c26e1393b63e680ee7844202391414dbd48497e9a4fd997cd3cbf
Status: Downloaded newer image for ubuntu:latest
root@compute2:~# docker images -a
REPOSITORY TAG IMAGE ID CREATED SIZE
ubuntu latest bd3d4369aebc 12 days ago 126.6 MB
ubuntu-1604-sleepy_kilby latest 94c88d9d0023 3 weeks ago 126.4 MB
ubuntu <none> f8d79ba03c00 3 weeks ago 126.4 MB
cmer81/centos7-openstack latest 3317e0f4e0fb 7 months ago 322.2 MB
3、启动并登录Docker容器
root@compute2:~# docker run -i -t ubuntu
root@c0a0294d98d2:/# cat /etc/issue
Ubuntu 16.04.1 LTS \n \l
给容器设置root密码
# passwd root
Changing password for user root.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.
设置允许root密码登录
# vi /etc/ssh/sshd_config
PermitRootLogin yes
PasswordAuthentication yes
SSH到容器中
root@compute2:~# ssh 172.17.0.3
root@172.17.0.3's password:
#
#
#
# ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>mtu 1500
inet 172.17.0.3netmask 255.255.0.0broadcast 0.0.0.0
inet6 fe80::42:acff:fe11:3prefixlen 64scopeid 0x20<link>
ether 02:42:ac:11:00:03txqueuelen 0(Ethernet)
RX packets 434bytes 52434 (51.2 KiB)
RX errors 0dropped 0overruns 0frame 0
TX packets 419bytes 42782 (41.7 KiB)
TX errors 0dropped 0 overruns 0carrier 0collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING>mtu 65536
inet 127.0.0.1netmask 255.0.0.0
inet6 ::1prefixlen 128scopeid 0x10<host>
looptxqueuelen 1(Local Loopback)
RX packets 0bytes 0 (0.0 B)
RX errors 0dropped 0overruns 0frame 0
TX packets 0bytes 0 (0.0 B)
TX errors 0dropped 0 overruns 0carrier 0collisions 0
#
退出Docker容器
root@76da79f898c3:/# exit
exit
4、在另一个docker主机查看目前运行的docker进程的ID
root@compute2:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
a8ffa3d75d46 ubuntu "/bin/bash" 51 seconds ago Exited (127) 42 seconds ago sleepy_kilby
aee77e7dec7b ubuntu "/bin/bash" 2 minutes ago Exited (0) 53 seconds ago compassionate_hodgkin
c0a0294d98d2 ubuntu "/bin/bash" 47 minutes ago Exited (127) 38 minutes ago ecstatic_ritchie
5、将镜像保存为
root@compute2:~# docker commit a8ffa3d75d46 ubuntu-1604-sleepy_kilby
sha256:94c88d9d002364ed5b405357f6910fbc6fdddda917a07f99933a65e66e74fe99
6、将此镜像打包成一个文件
root@compute2:~# docker save ubuntu-1604-sleepy_kilby > /root/ubuntu-1604.tar
7、从终端直接启动容器
root@compute2:~# docker run -i -t -p 50001:22 ubuntu-1604-sleepy_kilby /bin/bash
nova-docker方案实践
安装novadocker
python-pip 有一个BUG,如果已安装python-pip，先删除，
root@compute2:~# apt-get remove python-pip
root@compute2:~#apt-get autoremove
root@compute2:~# easy_install -U pip
root@compute2:~# pip install -e git+https://github.com/stackforge/nova-docker#egg=novadocker
root@compute2:~# cd src/novadocker/
root@compute2:~/src/novadocker# python setup.py install
配置NOVA
root@compute2:~# vim /etc/nova/nova.conf
compute_driver = novadocker.virt.docker.DockerDriver
创建/etc/nova/rootwrap.d/dockers.filters
# nova-rootwrap command filters for setting up network in the docker driver
# This file should be owned by (and only-writeable by) the root user
# nova/virt/docker/driver.py: 'ln', '-sf', '/var/run/netns/.*'
ln: CommandFilter, /bin/ln, root
配置Glance
root@controller:/etc/glance# vim glance-api.conf
container_formats = ami,ari,aki,bare,ovf,docker
下载Docker镜像
查找适用于OpenStack的镜像
root@compute2:~# docker search openstack
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
krystism/openstack-keystone An easy way to try openstack keystone service 7
continuse/openstack-controller OpenStack Controller Service for CoreOS 5
centurylink/openstack-cli-wetty This image provides a Wetty terminal with ... 4
cmer81/centos7-openstack Centos7 image for openstack-cloudinit 2
continuse/openstack-nova-docker OpenStack Nova-Docker Service for CoreOS 2
cosmicq/openstack-nova (project not complete) The Nova (compute) ... 1
cosmicq/openstack-rabbitmq (project not complete) RabbitMQ (AMQP) ser... 1
ennweb/openstack-controller OpenStack Controller 1
cosmicq/openstack-keystone (project not complete) The Keystone (authe... 1
cosmicq/openstack-mariadb (project not complete) MariaDB and PHPMyAd... 1
continuse/openstack-network OpenStack Network (Neutron) Service for Co... 1
continuse/openstack-compute OpenStack Compute Service for CoreOS 1
krystism/openstack-glance An easy way to try openstack glance service 1
factual/docker-openstack-database OpenStack Database (MariaDB) 1
pataquets/openstack-dashboard 0
colstrom/openstack-cli OpenStack CLI 0
continuse/openstack-cinder OpenStack Block Storage Service for CoreOS 0
alvaroaleman/openstack-horizon A simple Docker image for the Openstack Ho... 0
pataquets/openstack-keystone 0
pierrezemb/exherbo-openstack Exherbo image generator for OpenStack 0
factual/docker-openstack-messaging OpenStack Messaging service (RabbitMQ) 0
ennweb/openstack-compute OpenStack Compute on Docker 0
anguslees/openstack-tox 0
gbraad/openstack-client Container with the OpenStack client and 's... 0
jmcvea/openstack-client OpenStack command line tools 0
root@compute2:~#
root@compute2:~# docker pull cmer81/centos7-openstack
Using default tag: latest
latest: Pulling from cmer81/centos7-openstack
a3ed95caeb02: Pull complete
3286cdf780ef: Pull complete
889e0983d8b8: Pull complete
48ed448d00d6: Pull complete
0ebb5fe0f8ad: Pull complete
c93dc6f68ef1: Pull complete
cf8e344e8663: Pull complete
9827381c9ae3: Pull complete
8f1f6b35ea96: Pull complete
Digest: sha256:84b374fe2a8bf40a8716d79e5ea179b2fb28352e8a18fa49ddda2ab295bebe6e
Status: Downloaded newer image for cmer81/centos7-openstack:latest
root@compute2:~# docker save cmer81/centos7-openstack | glance --os-image-api-version 1 image-create --is-public=True --container-format=docker --disk-format=raw --name cmer81/centos7-openstack
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 114c19e55638a317b837ae73f6c8314c |
| container_format | docker |
| created_at | 2016-08-17T03:03:22.000000 |
| deleted | False |
| deleted_at | None |
| disk_format | raw |
| id | 521f5a87-22cc-4851-a812-dee1b17b5e46 |
| is_public | True |
| min_disk | 0 |
| min_ram | 0 |
| name | cmer81/centos7-openstack |
| owner | f9027cccf7da4f2399c7fdf32e8776f0 |
| protected | False |
| size | 334179328 |
| status | active |
| updated_at | 2016-08-17T03:03:28.000000 |
| virtual_size | None |
+------------------+--------------------------------------+
查找ubuntu镜像
root@compute2:~# docker search ubuntu
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
ubuntu Ubuntu is a Debian-based Linux operating s... 4468
ubuntu-upstart Upstart is an event-based replacement for ... 65
rastasheep/ubuntu-sshd Dockerized SSH service, built on top of of... 31
torusware/speedus-ubuntu Always updated official Ubuntu docker imag... 27
ubuntu-debootstrap debootstrap --variant=minbase --components... 25
nickistre/ubuntu-lamp LAMP server on Ubuntu 8
nuagebec/ubuntu Simple always updated Ubuntu docker images... 7
nickistre/ubuntu-lamp-wordpress LAMP on Ubuntu with wp-cli installed 6
nimmis/ubuntu This is a docker images different LTS vers... 5
jordi/ubuntu Ubuntu Base Image 1
admiringworm/ubuntu Base ubuntu images based on the official u... 1
seetheprogress/ubuntu Ubuntu image provided by seetheprogress us... 1
darksheer/ubuntu Base Ubuntu Image -- Updated hourly 1
life360/ubuntu Ubuntu is a Debian-based Linux operating s... 0
datenbetrieb/ubuntu custom flavor of the official ubuntu base ... 0
konstruktoid/ubuntu Ubuntu base image 0
lynxtp/ubuntu https://github.com/lynxtp/docker-ubuntu 0
esycat/ubuntu Ubuntu LTS 0
widerplan/ubuntu Our basic Ubuntu images. 0
croscon/ubuntu Crosconized Ubuntu 0
teamrock/ubuntu TeamRock's Ubuntu image configured with AW... 0
smartentry/ubuntu ubuntu with smartentry 0
ustclug/ubuntu ubuntu image for docker with USTC mirror 0
dorapro/ubuntu ubuntu image 0
webhippie/ubuntu Docker images for ubuntu 0
下载镜像
root@compute2:~# docker pull ubuntu
Using default tag: latest
latest: Pulling from library/ubuntu
Digest: sha256:8e2324f2288c26e1393b63e680ee7844202391414dbd48497e9a4fd997cd3cbf
Status: Image is up to date for ubuntu:latest
把镜像上传到Glance中
root@compute2:~# docker save ubuntu | glance image-create --container-format=docker --disk-format=raw --name ubuntu-docer
+------------------+--------------------------------------+
| Property | Value |
+------------------+--------------------------------------+
| checksum | 364a6b81f4a3f5fb5c4a0e1d62395322 |
| container_format | docker |
| created_at | 2016-08-17T02:46:58Z |
| disk_format | raw |
| id | e2616723-b55d-48a6-9548-606f0da7dddb |
| min_disk | 0 |
| min_ram | 0 |
| name | ubuntu-docer |
| owner | f9027cccf7da4f2399c7fdf32e8776f0 |
| protected | False |
| size | 132096512 |
| status | active |
| tags | [] |
| updated_at | 2016-08-17T02:46:59Z |
| virtual_size | None |
| visibility | private |
+------------------+--------------------------------------+
、
root@compute2:~# nova image-list
+--------------------------------------+-----------------------------------------+--------+--------+
| ID | Name | Status | Server |
+--------------------------------------+-----------------------------------------+--------+--------+
| 96872d33-73a1-4e1d-bc9e-5b4206a258af | CentOS-7-x86_64-GenericCloud | ACTIVE | |
| c8d224af-b3ed-42be-a29b-ea7295abf932 | Ubuntu16.04-server-clouding-powerpc64el | ACTIVE | |
| e9b86672-f9d2-48f3-b57f-0320fc4a048f | Ubuntu16.04-xenial-server-cloud-amd64 | ACTIVE | |
| 521f5a87-22cc-4851-a812-dee1b17b5e46 | cmer81/centos7-openstack | ACTIVE | |
| e2616723-b55d-48a6-9548-606f0da7dddb | ubuntu-docer | ACTIVE | |
| ba5c1506-4389-42b5-acfb-849855b019b5 | ubuntu-server-clouding-amd64 | ACTIVE | |
| b2170c9b-41da-4b55-a4ec-88b8b3fc528e | ubuntu1604-server-cloud-ppc64el | ACTIVE | |
| c94a41f5-10b2-43f8-ae5d-1c91886f6f94 | windows2012server-clouding | ACTIVE | |
+--------------------------------------+-----------------------------------------+--------+--------+
root@compute2:~# nova boot centos7-openstack --image 521f5a87-22cc-4851-a812-dee1b17b5e46 --nic net-id=a969f82e-b4cc-48cf-a04a-64923dc73b4a --flavor 22 --security-groups default --key key
+--------------------------------------+-----------------------------------------------------------------+
| Property | Value |
+--------------------------------------+-----------------------------------------------------------------+
| OS-DCF:diskConfig | MANUAL |
| OS-EXT-AZ:availability_zone | |
| OS-EXT-SRV-ATTR:host | - |
| OS-EXT-SRV-ATTR:hostname | centos7-openstack |
| OS-EXT-SRV-ATTR:hypervisor_hostname| - |
| OS-EXT-SRV-ATTR:instance_name | instance-0000070f |
| OS-EXT-SRV-ATTR:kernel_id | |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | |
| OS-EXT-SRV-ATTR:reservation_id | r-3euaomoc |
| OS-EXT-SRV-ATTR:root_device_name | - |
| OS-EXT-SRV-ATTR:user_data | - |
| OS-EXT-STS:power_state | 0 |
| OS-EXT-STS:task_state | scheduling |
| OS-EXT-STS:vm_state | building |
| OS-SRV-USG:launched_at | - |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| adminPass | KjbkCzV8VVn2 |
| config_drive | |
| created | 2016-08-17T03:23:21Z |
| description | - |
| flavor | zoom.medium (22) |
| hostId | |
| host_status | |
| id | 41dad309-eb1a-4445-b1eb-81b87cd34d97 |
| image | cmer81/centos7-openstack (521f5a87-22cc-4851-a812-dee1b17b5e46) |
| key_name | key |
| locked | False |
| metadata | {} |
| name | centos7-openstack |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | BUILD |
| tenant_id | f9027cccf7da4f2399c7fdf32e8776f0 |
| updated | 2016-08-17T03:23:21Z |
| user_id | 957ba591d7824e0ab6e54d5c40e6be85 |
+--------------------------------------+-----------------------------------------------------------------+
root@compute2:~# nova list
+--------------------------------------+-------------------+--------+------------+-------------+-----------------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-------------------+--------+------------+-------------+-----------------------------------+
| 41dad309-eb1a-4445-b1eb-81b87cd34d97 | centos7-openstack | ACTIVE | - | Running | private=10.1.1.80, 10.1.1.78 |
| 4f6c62b0-3917-4a4c-a017-bc57ff1a7e4d | ubuntu | ACTIVE | - | Running | private=10.1.1.46
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