kolla-ansible部署all-in-one单节点openstack

kolla ansible简介

kolla 的使命是为 openstack 云平台提供生产级别的、开箱即用的交付能力。kolla 的基本思想是一切皆容器，将所有服务基于 Docker 运行，并且保证一个容器只跑一个服务（进程），做到最小粒度的运行 docker。

kolla 要实现 openetack 部署总体上分为两步，第一步是制作 docker 镜像，第二步是编排部署。因此，kolla 项目又被分为两个小项目：kolla、kolla-ansible 。

kolla-ansible项目
https://github.com/openstack/kolla-ansible

kolla项目
https://tarballs.opendev.org/openstack/kolla/

dockerhub镜像地址
https://hub.docker.com/u/kolla/

安装环境准备

官方部署文档：
https://docs.openstack.org/kolla-ansible/train/user/quickstart.html

本次部署train版all-in-one单节点，使用一台centos7.8 minimal节点进行部署，该节点同时作为控制节点、计算节点、网络节点和cinder存储节点使用，同时也是kolla ansible的部署节点。

kolla安装节点要求：

• 2 network interfaces
• 8GB main memory
• 40GB disk space

如果是vmware workstation环境，勾选处理器选项的虚拟化引擎相关功能，否则后面需要配置nova_compute_virt_type=qemu参数，这里选择勾选，跳过以下步骤。

# cat /etc/kolla/globals.yml
nova_compute_virt_type: "qemu"

#或者部署完成后手动调整
[root@kolla ~]# cat /etc/kolla/nova-compute/nova.conf |grep virt_type
#virt_type = kvm
virt_type = qemu

[root@kolla ~]# docker restart nova_compute

kolla的安装要求目标机器至少两块网卡，本次安装使用2块网卡对应管理网络和外部网络两个网络平面，在vmware workstation虚拟机新增一块网卡ens37：

• ens33，NAT模式，管理网络，正常配置静态IP即可。租户网络与该网络复用，租户vm网络不单独创建网卡
• ens37，桥接模式，外部网络，无需配置IP地址，这个其实是让neutron的br-ex 绑定使用，虚拟机通过这块网卡访问外网。

ens37网卡配置参考：
https://docs.openstack.org/install-guide/environment-networking-controller.html

cat > /etc/sysconfig/network-scripts/ifcfg-ens37 <<EOF
NAME=ens37
DEVICE=ens37
TYPE=Ethernet
ONBOOT="yes"
BOOTPROTO="none"
EOF

#重新加载en37网卡设备
nmcli con reload && nmcli con up ens37

如果启用cinder还需要额外添加磁盘，这里以添加一块/dev/sdb磁盘为例，创建为物理卷并加入卷组。

pvcreate /dev/sdb
vgcreate cinder-volumes /dev/sdb

注意卷组名称为cinder-volumes，默认与后面的globals.yml中定义一致。

[root@kolla ~]# cat /etc/kolla/globals.yml | grep cinder_volume_group
#cinder_volume_group: "cinder-volumes"

部署kolla ansible

配置主机名,kolla预检查时rabbitmq可能需要能够进行主机名解析

hostnamectl set-hostname kolla

安装依赖

yum install -y python-devel libffi-devel gcc openssl-devel libselinux-python

安装 Ansible，注意版本，默认2.9应该可以满足要求

yum install -y ansible

配置阿里云pip源，否则pip安装时会很慢

mkdir ~/.pip
cat > ~/.pip/pip.conf << EOF 
[global]
trusted-host=mirrors.aliyun.com
index-url=https://mirrors.aliyun.com/pypi/simple/
EOF

安装 kolla-ansible

kolla版本与openstack版本对应关系：https://releases.openstack.org/teams/kolla.html

yum install -y epel-release
yum install -y python-pip
pip install -U pip
pip install kolla-ansible==9.1.0 --ignore-installed PyYAML

复制 kolla-ansible配置文件到当前环境

mkdir -p /etc/kolla
chown $USER:$USER /etc/kolla

##Copy globals.yml and passwords.yml
cp -r /usr/share/kolla-ansible/etc_examples/kolla/* /etc/kolla

##Copy all-in-one and multinode inventory files
cp /usr/share/kolla-ansible/ansible/inventory/* .

修改ansible配置文件

cat << EOF | sed -i '/^\[defaults\]$/ r /dev/stdin' /etc/ansible/ansible.cfg
host_key_checking=False
pipelining=True
forks=100
EOF

默认有all-in-one和multinode两个inventory文件，这里使用all-in-one，来规划集群角色，配置默认即可

[root@kolla ~]# cat all-in-one | more
# These initial groups are the only groups required to be modified. The
# additional groups are for more control of the environment.
[control]
localhost       ansible_connection=local

[network]
localhost       ansible_connection=local

[compute]
localhost       ansible_connection=local

[storage]
localhost       ansible_connection=local

[monitoring]
localhost       ansible_connection=local

[deployment]
localhost       ansible_connection=local
...

检查inventory配置是否正确，执行：

ansible -i all-in-one all -m ping

生成openstack组件用到的密码，该操作会填充/etc/kolla/passwords.yml，该文件中默认参数为空。

kolla-genpwd

修改keystone_admin_password，可以修改为自定义的密码方便后续horizon登录，这里改为kolla。

$ sed -i 's#keystone_admin_password:.*#keystone_admin_password: kolla#g' /etc/kolla/passwords.yml 

$ cat /etc/kolla/passwords.yml | grep keystone_admin_password
keystone_admin_password: kolla

修改全局配置文件globals.yml，该文件用来控制安装哪些组件，以及如何配置组件，由于全部是注释，这里直接追加进去，也可以逐个找到对应项进行修改。

cp /etc/kolla/globals.yml{,.bak}

cat >> /etc/kolla/globals.yml <<EOF

# Kolla options
kolla_base_distro: "centos"
kolla_install_type: "binary"
openstack_release: "train"
kolla_internal_vip_address: "192.168.93.200"

# Docker options
docker_registry: "registry.cn-shenzhen.aliyuncs.com"
docker_namespace: "kollaimage"

# Neutron - Networking Options
network_interface: "ens33"
neutron_external_interface: "ens37"
neutron_plugin_agent: "openvswitch"
enable_neutron_provider_networks: "yes"

# OpenStack services
enable_cinder: "yes"
enable_cinder_backend_lvm: "yes"
EOF

参数说明：

• kolla_base_distro: kolla镜像基于不同linux发型版构建，主机使用centos这里对应使用centos类型的docker镜像即可。
• kolla_install_type: kolla镜像基于binary二进制和source源码两种类型构建，实际部署使用binary即可。
• openstack_release: openstack版本可自定义，会从dockerhub拉取对应版本的镜像
• kolla_internal_vip_address: 单节点部署kolla也会启用haproxy和keepalived，方便后续扩容为高可用集群，该地址是ens33网卡网络中的一个可用IP。
• docker_registry: 默认从dockerhub拉取镜像，这里使用阿里云镜像仓库，也可以本地搭建仓库，提前推送镜像上去。但该仓库目前只有train和ussuri版本的镜像，如何自己推送镜像参考该博客的其他文章。
• docker_namespace: 阿里云kolla镜像仓库所在的命名空间，dockerhub官网默认是kolla。
• network_interface: 管理网络的网卡
• neutron_external_interface: 外部网络的网卡
• neutron_plugin_agent: 默认启用openvswitch
• enable_neutron_provider_networks: 启用外部网络
• enable_cinder: 启用cinder
• enable_cinder_backend_lvm: 指定cinder后端存储为lvm

修改docker官方yum源为阿里云yum源，另外配置docker镜像加速，指定使用阿里云镜像加速。

sed -i 's/^docker_yum_url/#&/' /usr/share/kolla-ansible/ansible/roles/baremetal/defaults/main.yml
sed -i 's/^docker_custom_config/#&/' /usr/share/kolla-ansible/ansible/roles/baremetal/defaults/main.yml

cat >> /usr/share/kolla-ansible/ansible/roles/baremetal/defaults/main.yml <<EOF
docker_yum_url: "https://mirrors.aliyun.com/docker-ce/linux/{{ ansible_distribution | lower }}"
docker_custom_config: {"registry-mirrors": ["https://uyah70su.mirror.aliyuncs.com"]}
EOF

部署openstack组件

部署openstack

#预配置，安装docker、docker sdk、关闭防火墙、配置时间同步等
kolla-ansible -i ./all-in-one bootstrap-servers

#部署前环境检查
kolla-ansible -i ./all-in-one prechecks

#拉取镜像，也可省略该步骤，默认会自动拉取
kolla-ansible -i ./all-in-one pull

#执行实际部署，拉取镜像，运行对应组件容器
kolla-ansible -i ./all-in-one deploy

#生成openrc文件
kolla-ansible post-deploy

以上部署没有报错中断说明部署成功，所有openstack组件以容器方式运行，查看容器

[root@kolla ~]# docker ps -a
CONTAINER ID        IMAGE                                                                                        COMMAND                  CREATED             STATUS              PORTS               NAMES
325c17a52c79        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-chrony:train                      "dumb-init --single-…"   36 hours ago        Up 25 hours                             chrony
6218d98755ee        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cron:train                        "dumb-init --single-…"   36 hours ago        Up 25 hours                             cron
02b6598c1089        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-kolla-toolbox:train               "dumb-init --single-…"   36 hours ago        Up 25 hours                             kolla_toolbox
8572e445abad        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-fluentd:train                     "dumb-init --single-…"   36 hours ago        Up 25 hours                             fluentd
f11a103c5ade        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openstack-base:train              "dumb-init --single-…"   44 hours ago        Up 25 hours                             client
5c91def3c963        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-horizon:train                     "dumb-init --single-…"   44 hours ago        Up 25 hours                             horizon
e024bd4f5dd3        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-engine:train                 "dumb-init --single-…"   44 hours ago        Up 25 hours                             heat_engine
2d1491bd9e1a        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-api-cfn:train                "dumb-init --single-…"   44 hours ago        Up 25 hours                             heat_api_cfn
eeefcfb31a61        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-api:train                    "dumb-init --single-…"   44 hours ago        Up 25 hours                             heat_api
9b51b53448fc        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-metadata-agent:train      "dumb-init --single-…"   44 hours ago        Up 25 hours                             neutron_metadata_agent
9f88a6c0cf31        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-l3-agent:train            "dumb-init --single-…"   44 hours ago        Up 25 hours                             neutron_l3_agent
a419cb3270a6        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-dhcp-agent:train          "dumb-init --single-…"   44 hours ago        Up 25 hours                             neutron_dhcp_agent
959f6faba972        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-openvswitch-agent:train   "dumb-init --single-…"   44 hours ago        Up 25 hours                             neutron_openvswitch_agent
cc1b081cf876        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-server:train              "dumb-init --single-…"   44 hours ago        Up 25 hours                             neutron_server
eea1a87feb43        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openvswitch-vswitchd:train        "dumb-init --single-…"   44 hours ago        Up 25 hours                             openvswitch_vswitchd
376f81bf75a2        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openvswitch-db-server:train       "dumb-init --single-…"   44 hours ago        Up 25 hours                             openvswitch_db
c68fd9a92d73        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-compute:train                "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_compute
2492e2a32c80        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-libvirt:train                "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_libvirt
3802d199b29f        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-ssh:train                    "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_ssh
1281c311ecd4        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-novncproxy:train             "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_novncproxy
2e8c8478116b        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-conductor:train              "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_conductor
950feb59b549        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-api:train                    "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_api
49497e664922        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-scheduler:train              "dumb-init --single-…"   44 hours ago        Up 25 hours                             nova_scheduler
f5eb37b48f7d        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-placement-api:train               "dumb-init --single-…"   44 hours ago        Up 25 hours                             placement_api
54cd0e3be101        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-backup:train               "dumb-init --single-…"   44 hours ago        Up 25 hours                             cinder_backup
b4efa4449e7f        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-volume:train               "dumb-init --single-…"   44 hours ago        Up 25 hours                             cinder_volume
159b669d2fd3        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-scheduler:train            "dumb-init --single-…"   44 hours ago        Up 25 hours                             cinder_scheduler
9fc7e6a4cb25        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-api:train                  "dumb-init --single-…"   44 hours ago        Up 25 hours                             cinder_api
b3f8f711f2b1        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-glance-api:train                  "dumb-init --single-…"   44 hours ago        Up 25 hours                             glance_api
760e92d698e2        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone-fernet:train             "dumb-init --single-…"   44 hours ago        Up 25 hours                             keystone_fernet
95f235c4ac10        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone-ssh:train                "dumb-init --single-…"   44 hours ago        Up 25 hours                             keystone_ssh
03306334ce19        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone:train                    "dumb-init --single-…"   44 hours ago        Up 25 hours                             keystone
5173d4191567        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-rabbitmq:train                    "dumb-init --single-…"   44 hours ago        Up 25 hours                             rabbitmq
eb6bca26f6ce        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-tgtd:train                        "dumb-init --single-…"   44 hours ago        Up 25 hours                             tgtd
79fac2ca1b19        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-iscsid:train                      "dumb-init --single-…"   44 hours ago        Up 25 hours                             iscsid
4a3fcefc7009        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-memcached:train                   "dumb-init --single-…"   44 hours ago        Up 25 hours                             memcached
0773eaf446e4        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-mariadb:train                     "dumb-init -- kolla_…"   44 hours ago        Up 25 hours                             mariadb
77f0beaa28e5        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keepalived:train                  "dumb-init --single-…"   44 hours ago        Up 25 hours                             keepalived
b02b744d2da3        registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-haproxy:train                     "dumb-init --single-…"   44 hours ago        Up 25 hours                             haproxy

确认没有Exited等异常状态的容器

[root@kolla ~]# docker ps -a  | grep -v Up

本次部署运行了39个容器

[root@localhost kolla-env]# docker ps -a | wc -l
39

查看拉取的镜像，发现镜像数量与容器数量是一致的。

[root@kolla ~]# docker images
REPOSITORY                                                                             TAG                 IMAGE ID            CREATED             SIZE
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-glance-api                  train               aec757c5908a        2 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone-ssh                train               2c95619322ed        2 days ago          1.04GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone-fernet             train               918564aa9c01        2 days ago          1.04GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keystone                    train               8d5f3ca2a73c        2 days ago          1.04GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-api                  train               500910236e85        2 days ago          1.19GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-volume               train               f76ebe1e133d        2 days ago          1.14GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-backup               train               19342786a92c        2 days ago          1.13GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cinder-scheduler            train               920630f0ea6c        2 days ago          1.11GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-api                    train               517f6a0643ee        2 days ago          1.07GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-api-cfn                train               2d46b91d44ef        2 days ago          1.07GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-heat-engine                 train               ab570c135dbc        2 days ago          1.07GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-horizon                     train               a00ddb359ea5        2 days ago          1.2GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-fluentd                     train               6a5b7be2551b        2 days ago          697MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-cron                        train               0f784cd532e2        2 days ago          408MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-chrony                      train               374dabc62868        2 days ago          408MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-iscsid                      train               575873f9e4b8        2 days ago          413MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-haproxy                     train               9cf840548535        2 days ago          433MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-keepalived                  train               b2a20ccd7d6a        2 days ago          414MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openstack-base              train               c35001fb182b        3 days ago          920MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-compute                train               93be43a73a3e        5 days ago          1.85GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-placement-api               train               26f8c88c3c50        5 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-api                    train               2a9d3ea95254        5 days ago          1.08GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-novncproxy             train               e6acfbe47b2b        5 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-conductor              train               836a9f775263        5 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-ssh                    train               f89a813f3902        5 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-scheduler              train               8061eaa33d21        5 days ago          1.05GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openvswitch-vswitchd        train               2b780c8075c6        5 days ago          425MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openvswitch-db-server       train               86168147b086        5 days ago          425MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-rabbitmq                    train               19cd34b4f503        5 days ago          487MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-mariadb                     train               882472a192b5        6 days ago          593MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-dhcp-agent          train               a007b53f0507        7 days ago          1.04GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-metadata-agent      train               8bcff22221bd        7 days ago          1.04GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-nova-libvirt                train               539673da5c25        7 days ago          1.25GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-kolla-toolbox               train               a18a474c65ea        7 days ago          842MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-tgtd                        train               ad5380187ca9        7 days ago          383MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-memcached                   train               1fcf18645254        7 days ago          408MB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-server              train               539cfb7c1fd2        8 days ago          1.08GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-openvswitch-agent   train               95113c0f5b8c        8 days ago          1.08GB
registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-neutron-l3-agent            train               fbe9385f49ca        8 days ago          1.08GB

查看cinder使用的卷，自动创建了lvm

[root@kolla ~]# lsblk | grep cinder
├─cinder--volumes-cinder--volumes--pool_tmeta 253:3    0   20M  0 lvm  
│ └─cinder--volumes-cinder--volumes--pool     253:5    0   19G  0 lvm  
└─cinder--volumes-cinder--volumes--pool_tdata 253:4    0   19G  0 lvm  
  └─cinder--volumes-cinder--volumes--pool     253:5    0   19G  0 lvm  
                         
[root@kolla ~]# lvs | grep cinder
  cinder-volumes-pool cinder-volumes twi-a-tz--  19.00g             0.00   10.55

查看网卡状态

[root@kolla ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:0c:4e:fe brd ff:ff:ff:ff:ff:ff
    inet 192.168.93.30/24 brd 192.168.93.255 scope global noprefixroute ens33
       valid_lft forever preferred_lft forever
    inet 192.168.93.100/32 scope global ens33
       valid_lft forever preferred_lft forever
    inet6 fe80::7a6c:d06c:ee49:4cd5/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: ens37: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master ovs-system state UP group default qlen 1000
    link/ether 00:0c:29:0c:4e:08 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::20c:29ff:fe0c:4e08/64 scope link 
       valid_lft forever preferred_lft forever
4: docker0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default 
    link/ether 02:42:2a:d9:93:52 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
    inet6 fe80::42:2aff:fed9:9352/64 scope link 
       valid_lft forever preferred_lft forever
6: veth0c46c6a@if5: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue master docker0 state UP group default 
    link/ether 1a:ce:d7:61:d0:cc brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::18ce:d7ff:fe61:d0cc/64 scope link 
       valid_lft forever preferred_lft forever
7: ovs-system: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether de:e5:b7:4d:e8:b8 brd ff:ff:ff:ff:ff:ff
11: br-int: <BROADCAST,MULTICAST> mtu 1450 qdisc noop state DOWN group default qlen 1000
    link/ether 52:14:05:ba:ce:4c brd ff:ff:ff:ff:ff:ff
13: br-tun: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether d2:5b:76:f5:01:49 brd ff:ff:ff:ff:ff:ff
14: br-ex: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether 00:0c:29:0c:4e:08 brd ff:ff:ff:ff:ff:ff
22: qbr2749f64b-1f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UP group default qlen 1000
    link/ether 3a:0d:ad:56:9d:9d brd ff:ff:ff:ff:ff:ff
23: qvo2749f64b-1f@qvb2749f64b-1f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master ovs-system state UP group default qlen 1000
    link/ether c2:c5:8b:a6:72:8b brd ff:ff:ff:ff:ff:ff
    inet6 fe80::c0c5:8bff:fea6:728b/64 scope link 
       valid_lft forever preferred_lft forever
24: qvb2749f64b-1f@qvo2749f64b-1f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master qbr2749f64b-1f state UP group default qlen 1000
    link/ether 3a:0d:ad:56:9d:9d brd ff:ff:ff:ff:ff:ff
    inet6 fe80::380d:adff:fe56:9d9d/64 scope link 
       valid_lft forever preferred_lft forever
25: tap2749f64b-1f: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master qbr2749f64b-1f state UNKNOWN group default qlen 1000
    link/ether fe:16:3e:94:b5:71 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc16:3eff:fe94:b571/64 scope link 
       valid_lft forever preferred_lft forever
26: qbr0a14e63d-2e: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue state UP group default qlen 1000
    link/ether 02:f9:32:c0:f4:b7 brd ff:ff:ff:ff:ff:ff
27: qvo0a14e63d-2e@qvb0a14e63d-2e: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master ovs-system state UP group default qlen 1000
    link/ether 76:86:46:4c:4f:61 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::7486:46ff:fe4c:4f61/64 scope link 
       valid_lft forever preferred_lft forever
28: qvb0a14e63d-2e@qvo0a14e63d-2e: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc noqueue master qbr0a14e63d-2e state UP group default qlen 1000
    link/ether 02:f9:32:c0:f4:b7 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::f9:32ff:fec0:f4b7/64 scope link 
       valid_lft forever preferred_lft forever
29: tap0a14e63d-2e: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast master qbr0a14e63d-2e state UNKNOWN group default qlen 1000
    link/ether fe:16:3e:ee:08:6b brd ff:ff:ff:ff:ff:ff
    inet6 fe80::fc16:3eff:feee:86b/64 scope link 
       valid_lft forever preferred_lft forever

另外需要注意，不要在该节点安装libvirt等工具，这些工具安装后可能会启用libvirtd和iscsid.sock等服务，kolla已经在容器中运行了这些服务，这些服务会调用节点上的sock文件，如果节点上也启用这些服务去抢占这些文件，会导致容器异常。默认kolla在预配置时也会主动禁用节点上的相关服务。

安装OpenStack客户端

yum安装openstack客户端

#启用openstack存储库
yum install -y centos-release-openstack-train

#安装openstack客户端
yum install -y python-openstackclient

#启用selinux,安装openstack-selinux软件包以自动管理OpenStack服务的安全策略
yum install -y openstack-selinux

#报错处理
pip uninstall urllib3
yum install -y python2-urllib3

kolla ansible提供了一个快速创建cirros demo实例的脚本/usr/share/kolla-ansible/init-runonce。

脚本需要cirros镜像，如果网络较慢可以使用浏览器下载放在/opt/cache/files目录下：

wget https://github.com/cirros-dev/cirros/releases/download/0.4.0/cirros-0.4.0-x86_64-disk.img
mkdir -p /opt/cache/files/
mv cirros-0.4.0-x86_64-disk.img /opt/cache/files/

定义init-runonce示例脚本外部网络配置：

#定义init-runonce示例脚本外部网络配置
export EXT_NET_CIDR='192.168.1.0/24'
export EXT_NET_RANGE='start=192.168.1.200,end=192.168.1.250'
export EXT_NET_GATEWAY='192.168.1.1'

#执行脚本，上传镜像到glance，创建内部网络、外部网络、flavor、ssh key，并运行一个实例
source /etc/kolla/admin-openrc.sh 
/usr/share/kolla-ansible/init-runonce

参数说明：

• EXT_NET_CIDR 指定外部网络，由于使用桥接模式，直接桥接到了电脑的无线网卡，所以这里网络就是无线网卡的网段。
• EXT_NET_RANGE 指定从外部网络取出一个地址范围，作为外部网络的地址池
• EXT_NET_GATEWAY 外部网络网关，这里与wifi网络使用的网关一致

根据最终提示运行实例

openstack server create \
    --image cirros \
    --flavor m1.tiny \
    --key-name mykey \
    --network demo-net \
    demo1

也可以使用docker容器作为客户端

docker run -d --name client \
  --restart always \
  -v /etc/kolla/admin-openrc.sh:/admin-openrc.sh:ro \
  -v /usr/share/kolla-ansible/init-runonce:/init-runonce:rw \
  registry.cn-shenzhen.aliyuncs.com/kollaimage/centos-binary-openstack-base:train sleep infinity

docker exec -it client bash
source /admin-openrc.sh
openstack service list

访问openstack horizon

访问openstack horizon需要使用vip地址，节点上可以看到由keepalived容器生成的vip

[root@kolla ~]# ip a |grep ens33
2: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    inet 192.168.93.30/24 brd 192.168.93.255 scope global ens33
    inet 192.168.93.100/32 scope global ens33

浏览器直接访问该地址即可登录到horizon

http://192.168.93.100

我这里的用户名密码为admin/kolla，信息可以从admin-openrc.sh中获取

[root@kolla ~]# cat /etc/kolla/admin-openrc.sh
# Clear any old environment that may conflict.
for key in $( set | awk '{FS="="}  /^OS_/ {print $1}' ); do unset $key ; done
export OS_PROJECT_DOMAIN_NAME=Default
export OS_USER_DOMAIN_NAME=Default
export OS_PROJECT_NAME=admin
export OS_TENANT_NAME=admin
export OS_USERNAME=admin
export OS_PASSWORD=kolla
export OS_AUTH_URL=http://192.168.93.100:35357/v3
export OS_INTERFACE=internal
export OS_ENDPOINT_TYPE=internalURL
export OS_IDENTITY_API_VERSION=3
export OS_REGION_NAME=RegionOne
export OS_AUTH_PLUGIN=password

默认登录后如下

在horizion查看创建的网络和实例

登录实例控制台，验证实例与外网的连通性，cirros用户密码在初次登录时有提示：

为实例绑定浮动IP地址，方便从外部ssh远程连接到实例

点击+随机分配一个浮动IP

在kolla节点上ssh连接实例浮动IP，cirros镜像默认用户密码为cirros/gocubsgo，该镜像信息官网有介绍：
https://docs.openstack.org/image-guide/obtain-images.html#cirros-test

[root@kolla ~]# ssh [email protected]
[email protected]'s password: 
$ 
$ 

或者在集群外部使用SecureCRT连接到实例。

运行CentOS实例

centos官方维护有相关cloud image，如果不需要进行定制，可以直接下载来运行实例。

参考：https://docs.openstack.org/image-guide/obtain-images.html

CentOS官方维护的镜像下载地址：
http://cloud.centos.org/centos/7/images/

也可以使用命令直接下载镜像，但是下载可能较慢，建议下载好在进行上传。以centos7.8为例：

wget http://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-2003.qcow2c

下载完成后上传镜像到openstack，直接在horizon上传即可。也可以使用命令上传。

注意：默认该镜像运行的实例只能使用ssh key以centos用户身份登录，如果需要使用root远程ssh连接到实例需要在上传前为镜像配置root免密并开启ssh访问。

参考：https://blog.csdn.net/networken/article/details/106713658

另外我们的命令客户端在容器中，所有这里有些不方便，首先要将镜像复制到容器中，然后使用openstack命令上传。

这里复制到client容器的根目录下。

[root@kolla ~]# docker cp CentOS-7-x86_64-GenericCloud-2003.qcow2c client:/

[root@kolla ~]# docker exec -it client bash
()[root@f11a103c5ade /]# 
()[root@f11a103c5ade /]# source /admin-openrc.sh 

()[root@f11a103c5ade /]# ls | grep CentOS
CentOS-7-x86_64-GenericCloud-2003.qcow2c

执行以下openstack命令上传镜像

openstack image create "CentOS78-image" \
  --file CentOS-7-x86_64-GenericCloud-2003.qcow2c \
  --disk-format qcow2 --container-format bare \
  --public

命令执行结果

()[root@f11a103c5ade ~]# openstack image create "CentOS78-image" \
>   --file CentOS-7-x86_64-GenericCloud-2003.qcow2c \
>   --disk-format qcow2 --container-format bare \
>   --public
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Field            | Value                                                                                                                                                                                      |
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| checksum         | 362d1e07d42bcbc61b839fb4269b173b                                                                                                                                                           |
| container_format | bare                                                                                                                                                                                       |
| created_at       | 2020-06-13T03:23:16Z                                                                                                                                                                       |
| disk_format      | qcow2                                                                                                                                                                                      |
| file             | /v2/images/2d95d8a0-6fba-4ca8-9dde-8696eb7ebdbf/file                                                                                                                                       |
| id               | 2d95d8a0-6fba-4ca8-9dde-8696eb7ebdbf                                                                                                                                                       |
| min_disk         | 0                                                                                                                                                                                          |
| min_ram          | 0                                                                                                                                                                                          |
| name             | CentOS78-image                                                                                                                                                                           |
| owner            | 65850af146fe478ab13f59f7edf838ec                                                                                                                                                           |
| properties       | os_hash_algo='sha512', os_hash_value='aefa398f69e1746b420c44e5650f0dcf15926fb6f8c75f746bb2f48a04f7b140fdc745090f3d06b68fa0fe711ded7d822150765414e2a23f351efd2e181eb7b9', os_hidden='False' |
| protected        | False                                                                                                                                                                                      |
| schema           | /v2/schemas/image                                                                                                                                                                          |
| size             | 385941504                                                                                                                                                                                  |
| status           | active                                                                                                                                                                                     |
| tags             |                                                                                                                                                                                            |
| updated_at       | 2020-06-13T03:23:20Z                                                                                                                                                                       |
| virtual_size     | None                                                                                                                                                                                       |
| visibility       | public                                                                                                                                                                                     |
+------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+

在horizon中使用该镜像创建实例，其他信息直接使用之前demo创建的资源即可。创建完成后为实例绑定浮动IP。

如果实例创建失败可以查看相关组件报错日志

[root@kolla ~]# tail -100f /var/log/kolla/nova/nova-compute.log 

未配置root密码连接实例
如果没有提前定制镜像修改root密码，只能使用centos用户及sshkey登录，由于是在容器中运行的demo示例，ssh私钥也保存在容器的默认目录下，在容器中连接实例浮动IP测试

[root@kolla ~]# docker exec -it client bash
()[root@f11a103c5ade /]#  ssh -i /root/.ssh/id_rsa [email protected]
Last login: Sat Jun 13 05:47:49 2020 from 192.168.1.100
[centos@centos78 ~]$ 
[centos@centos78 ~]$ 

或者取出该id_rsa私钥，使用SecureCRT登录：

配置root密码连接实例

如果提前修改了镜像配置root密码，直接使用root用户密码登录实例即可，

[root@kolla ~]# ssh [email protected]
[email protected]'s password: 
Last login: Sat Jun 13 05:51:53 2020 from 192.168.1.100
[root@centos78 ~]# 
[root@centos78 ~]# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
    link/ether fa:16:3e:94:b5:71 brd ff:ff:ff:ff:ff:ff
    inet 10.0.0.193/24 brd 10.0.0.255 scope global dynamic eth0
       valid_lft 84215sec preferred_lft 84215sec
    inet6 fe80::f816:3eff:fe94:b571/64 scope link 
       valid_lft forever preferred_lft forever
[root@centos78 ~]# 
[root@centos78 ~]# cat /etc/redhat-release 
CentOS Linux release 7.8.2003 (Core)

运行Ubuntu实例

下载镜像

wget https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img

上传镜像

openstack image create "Ubuntu1804" \
  --file bionic-server-cloudimg-amd64.img \
  --disk-format qcow2 --container-format bare \
  --public

按照正常流程创建实例即可，ubuntu镜像默认用户为ubuntu，首次登陆使用sshkey方式，然后执行以下命令即可直接切换到root用户（centos无法使用该方式）

$ sudo -i

调整集群配置

集群部署完成后需要开启新的组件或者扩容，可以修改/etc/kolla/global.yml调整参数。
或者在/etc/kolla/config目录下创建自定义配置文件，例如

# mkdir -p /etc/kolla/config/nova

# vim /etc/kolla/config/nova/nova.conf
[DEFAULT]
block_device_allocate_retries = 300
block_device_allocate_retries_interval = 3

重新配置openstack，kolla会自动重建配置变动的容器组件。

kolla-ansible -i all-in-one reconfigure -t nova

kolla配置和日志文件

• 各个组件配置文件目录： /etc/kolla/
• 各个组件日志文件目录：/var/log/kolla/

清理kolla ansilbe集群

kolla-ansible destroy --include-images --yes-i-really-really-mean-it

#或者
[root@kolla ~]# cd /usr/share/kolla-ansible/tools/
[root@all tools]# ./cleanup-containers
[root@all tools]# ./cleanup-host

#重置cinder卷，谨慎操作
vgremove cinder-volume