kolla-ansible如何安装openstack企业级高可用集群
这篇文章主要介绍了kolla-ansible如何安装openstack企业级高可用集群，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。
一.环境准备
1.hosts设置
每台设备两块网卡:
第一块:NAT模式,用于下载软件包,设置好IP可以上网
第二块:桥接模式,用于External网络,用于虚拟机连接外部网络,不用设置IP
hosts:
| host | eth0 | eth2 |
|---|---|---|
| deploy | 9.110.187.130 | |
| controller01 | 9.110.187.131 | 不需要IP |
| controller02 | 9.110.187.132 | 不需要IP |
| compute01 | 9.110.187.133 | 不需要IP |
| compute02 | 9.110.187.134 | 不需要IP |
| storage | 9.110.187.135 | 不需要IP |
2.ssh免密登录
ssh-keygenssh-copy-id root@controller01ssh-copy-id root@controller02ssh-copy-id root@compute01ssh-copy-id root@compute02ssh-copy-id root@storage
3.存储节点配置
要启动cinder存储服务，需先添加一块新的硬盘，然后创建pv、vg
[root@storage ~]# pvcreate /dev/sdb[root@storage ~]# vgcreate cinder-volumes /dev/sdb //vg名取名为 cinder-volumes，这里主要跟 kolla配置文件里vg名一致
只允许vm实例访问块存储卷，对LVM可能出现异常做设置
vim /etc/lvm/lvm.conf
#修改 devices 下面的，有多少块硬盘就写多少块，如果不想使用系统盘，则不写a|sdafilter = [ "a|sda|", "a|sdb|", "r|.*|" ]#重启lvm服务systemctl restart lvm2-lvmetad.service
4.配置国内PIP源
所有节点都需要配置
mkdir ~/.pipcat << EOF > ~/.pip/pip.conf[global]index-url = https://pypi.tuna.tsinghua.edu.cn/simple/[install]trusted-host=pypi.tuna.tsinghua.edu.cnEOF
5.安装PIP
#安装依赖yum install -y python-devel libffi-devel gcc openssl-devel libselinux-python#安装PIPyum install -y python-pippip install --upgrade pip
6.安装docker
所有节点都安装
yum install -y yum-utils device-mapper-persistent-data lvm2yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repoyum install docker-ce
配置Docker共享挂载
mkdir /etc/systemd/system/docker.service.d tee /etc/systemd/system/docker.service.d/kolla.conf << 'EOF' [Service] MountFlags=shared EOF
使用阿里加速地址
mkdir -p /etc/dockersystemctl daemon-reload && systemctl enable docker && systemctl restart dockersystemctl status docker
二.部署节点安装
1.安装docker模块
pip install docker //这个其它节点也需要安装,否则后面会报错
2.ansible安装
yum install -y ansiblepip install -U ansible
3.安装kolla和kolla-ansible
Kolla-Ansible 可以从pip安装，也可以从git安装，这里演示从pip安装
pip install kolla kolla-ansible
错误解决方案
Cannot uninstall 'PyYAML'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
解决:强制更新
pip install --ignore-installed PyYAML
如果出现
requests 2.20.0 has requirement idna<2.8,>=2.5, but you'll have idna 2.4 which is incompatible.错误，则强制更新requets库pip install --ignore-installed requests
配置kolla-ansible
1)拷贝globals.yml 和passwords.yml 到 /etc/kolla 目录
cp -r /usr/share/kolla-ansible/etc_examples/kolla /etc/
2)拷贝kolla-ansible的主机清单文件（all-in-one和multinode）
cp /usr/share/kolla-ansible/ansible/inventory/* /home/
注：如果是在虚拟机里再启动虚拟机，那么需要把virt_type=qemu，默认是kvm
mkdir -p /etc/kolla/config/nova cat << EOF > /etc/kolla/config/nova/nova-compute.conf [libvirt] virt_type=qemu cpu_mode = none EOF
4.生成密码文件
kolla-genpwd
修改下面字段，使用方便的密码
vim /etc/kolla/passwords.yml keystone_admin_password: devops
5.修改配置文件
grep -Ev "^$|^[#;]" /etc/kolla/globals.yml
kolla_base_distro: "centos"kolla_install_type: "source"openstack_release: "rocky"kolla_internal_vip_address: "9.110.187.180"network_interface: "eth0"api_interface: "{{ network_interface }}"neutron_external_interface: "eth2"neutron_plugin_agent: "openvswitch"enable_cinder: "yes"enable_cinder_backend_iscsi: "yes"enable_cinder_backend_lvm: "no"enable_haproxy: "yes"enable_heat: "yes"glance_enable_rolling_upgrade: "no"ironic_dnsmasq_dhcp_range:tempest_image_id:tempest_flavor_ref_id:tempest_public_network_id:tempest_floating_network_name:编辑/home/multinode文件
[control]controller01controller02[network]controller01controller02[inner-compute][external-compute]compute01compute02[compute:children]inner-computeexternal-compute[monitoring]deploy[storage]storage[deployment]localhost ansible_connection=local........
6.网关配置
这里physnet1是对外网络的名字,在dashboard里创建供应商网络的名字要和这里对应
vim /usr/share/kolla-ansible/ansible/roles/neutron/templates/ml2_conf.ini.j2
[ml2_type_vlan]{% if enable_ironic | bool %}network_vlan_ranges = physnet1{% else %}network_vlan_ranges = physnet1{% endif %}三.openstack集群安装
1.提前拉取镜像
kolla-ansible -i ./multinode pull -vvv
2.确认inventory配置文件是否正确
ansible -m ping all -i ./multinode
3.Bootstrap服务的依赖安装
kolla-ansible -i ./multinode bootstrap-servers
4.检查
kolla-ansible -i ./multinode prechecks
5.部署
kolla-ansible -i ./multinode deploy注:可以加-vvv,显示更多
6.使用openstack
生成环境变量和脚本
kolla-ansible -i ./multinode post-deploy此时会在/etc/kolla下面生成admin-openrc.sh脚本,执行一下
至此multinodes部署完成，浏览器输入外网访问地址：http://9.110.187.180，即可访问Openstack的登陆页面，用户名和密码都是之前设置的
各节点上服务常用目录
/etc/kolla 服务配置目录
/var/lib/docker/volumes/kolla_logs/_data 服务日志目录
/var/lib/docker/volumes 服务数据映射的目录
销毁openstack
kolla-ansible destroy -i ./multinode --yes-i-really-really-mean-it
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