OpenStack Liberty部署Nova-Docker

一 OpenStack安装
参考https://www.rdoproject.org//，使用packstack安装all-in-one OpenStack。OS：centos7

二 安装nova-docker插件

  git clone https://github.com/openstack/nova-docker.git  git checkout  stable/liberty

注意：clone完代码后，需要切换分之到stable/liberty!!!

安装nova－docker

python setup.py install

安装docker&docker-py

yum install -y dockerpip install docker-py

配置nova

compute_driver=novadocker.virt.docker.driver.DockerDriver

配置glance

container_formats=ami,ari,aki,bare,ovf,ova,docker

添加docker group,并将nova加入docker group。否则，nova无权限和docker交互。

groupadd dockersudo usermod -aG docker nova

关闭selinux，否则在启动容器时无法绑定port,/etc/selinux/config

SELINUX=disabled

重启启动机器，查询hypervisor信息

[root@localhost nova-docker(keystone_admin)]# nova hypervisor-list+----+-----------------------+-------+---------+| ID | Hypervisor hostname   | State | Status  |+----+-----------------------+-------+---------+| 1  | localhost.localdomain | up    | enabled |+----+-----------------------+-------+---------+[root@localhost nova-docker(keystone_admin)]# 

[root@localhost nova-docker(keystone_admin)]# nova hypervisor-show 1+-------------------------+-----------------------+| Property                | Value                 |+-------------------------+-----------------------+| cpu_info                | ?                     || current_workload        | 0                     || disk_available_least    | 32                    || free_disk_gb            | 37                    || free_ram_mb             | 10259                 || host_ip                 | 192.168.2.67          || hypervisor_hostname     | localhost.localdomain || hypervisor_type         | docker                || hypervisor_version      | 1000                  || id                      | 1                     || local_gb                | 38                    || local_gb_used           | 1                     || memory_mb               | 11283                 || memory_mb_used          | 1024                  || running_vms             | 1                     || service_disabled_reason | None                  || service_host            | localhost.localdomain || service_id              | 4                     || state                   | up                    || status                  | enabled               || vcpus                   | 8                     || vcpus_used              | 1                     |+-------------------------+-----------------------+

综上，可以看出当前节点的hypervisor已经变成了docker且当前阶段时up状态。

三 创建docker容器
上传镜像

docker pull busyboxdocker save busybox | openstack image create busybox --public --container-format docker --disk-format rawglance image-update --property os_command_line='/usr/sbin/sshd -D' $IMAGE_ID

创建容器

nova boot --flavor m1.small --image busybox --key-name mykey test1

查看结果

[root@localhost nova-docker(keystone_admin)]# nova list+--------------------------------------+---------+--------+------------+-------------+-------------------+| ID                                   | Name    | Status | Task State | Power State | Networks          |+--------------------------------------+---------+--------+------------+-------------+-------------------+| ab130ab4-1e3b-4e0e-a6bf-714f69308ac8 | busybox | ACTIVE | -          | Running     | You=192.168.2.207 |+--------------------------------------+---------+--------+------------+-------------+-------------------+[root@localhost nova-docker(keystone_admin)]# docker psCONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMESa1670ce4d91b        busybox             "sleep 300"         6 seconds ago       Up 5 seconds                            nova-ab130ab4-1e3b-4e0e-a6bf-714f69308ac8[root@localhost nova-docker(keystone_admin)]# 

值得，注意的是当前的nova－docker driver插件并不是非常的完善。如果要应用的生产环境，还需要做一些质量的加固。