kolla

kolla项目是为了容器化openstack，目标是做到100个节点的开箱即用，所有的组件的HA都具备。kolla是一个革命性的项目，我们以前积累的安装部署经验，全部都报废。使用kolla可以快速部署可扩展，可靠的生产就绪的openstack环境。

基本环境

操作系统：CentOS Linux release 7.2.1511 (Core)
内核版本：3.10.0-327.28.3.el7.x86_64
docker版本：Docker version 1.12.1, build 23cf638

部署kolla

1. 安装依赖

yum install epel-release python-pip
yum install -y python-devel libffi-devel openssl-devel gcc
pip install -U pip

2. 修改docker启动文件

# Create the drop-in unit directory for docker.service
mkdir -p /etc/systemd/system/docker.service.d

# Create the drop-in unit file
tee /etc/systemd/system/docker.service.d/kolla.conf <<-'EOF'
[Service]
MountFlags=shared
EOF

3. 重启docker

systemctl daemon-reload
systemctl restart docker

4. 安装docker的python库

yum install python-docker-py
or
pip install -U docker-py

5. 配置时间同步（此处略）

6. 禁用libvirt

systemctl stop libvirtd.service
systemctl disable libvirtd.service

7. 安装ansible

这里需要注意的是如果安装stable版的kolla需要Ansible < 2.0，master版需要Ansible > 2.0。默认yum安装ansible版本>2.0，因为我要安装stable/mitaka版，所有指定安装版本。

pip install -U ansible==1.9.4

8. 安装stable版kolla

下载源码

git clone https://git.openstack.org/openstack/kolla -b stable/mitaka

安装依赖

pip install -r kolla/requirements.txt -r kolla/test-requirements.txt

源码安装
pip install kolla/

9. 安装tox，生成配置文件

pip install -U tox
cd kolla/
tox -e genconfig
cp -rv etc/kolla /etc/

10. 安装python client

yum install python-openstackclient python-neutronclient

11. 本地docker仓库

all-in-one环境中本地仓库不是必须的这里没有配置

编译镜像

kolla-build

更多的编译选项可以参看：Building Container Images
如果个别镜像编译失败可以重新执行以上操作，因为docker的容器缓存，重新编译会很快
编译成功后生成的镜像如下所示：

# docker images
REPOSITORY                                      TAG                 IMAGE ID            CREATED             SIZE
kolla/centos-binary-heat-engine                 2.0.3               28956cc878d3        20 hours ago        571.4 MB
kolla/centos-binary-heat-api-cfn                2.0.3               d69858fd13fa        20 hours ago        571.4 MB
kolla/centos-binary-heat-api                    2.0.3               90a92ca6b71a        20 hours ago        571.4 MB
kolla/centos-binary-heat-base                   2.0.3               8f1cf8a1f536        21 hours ago        551.6 MB
kolla/centos-binary-neutron-openvswitch-agent   2.0.3               e7d0233ca541        21 hours ago        822.3 MB
kolla/centos-binary-neutron-base                2.0.3               8767569ca9b3        21 hours ago        796.7 MB
kolla/centos-binary-openvswitch-vswitchd        2.0.3               6867586ae335        21 hours ago        330.6 MB
kolla/centos-binary-openvswitch-db-server       2.0.3               3c692f316662        21 hours ago        330.6 MB
kolla/centos-binary-openvswitch-base            2.0.3               c3a263463f8f        21 hours ago        330.6 MB
kolla/centos-binary-cron                        2.0.3               d16d53e85ed9        26 hours ago        317.5 MB
kolla/centos-binary-kolla-toolbox               2.0.3               1fd9634b88ee        26 hours ago        568.4 MB
kolla/centos-binary-heka                        2.0.3               627a3de5e91c        26 hours ago        371.1 MB
kolla/centos-binary-neutron-metadata-agent      2.0.3               aad43ed7a5a1        42 hours ago        796.7 MB
kolla/centos-binary-neutron-server              2.0.3               bc1a7c0ec402        42 hours ago        796.7 MB
kolla/centos-binary-nova-compute                2.0.3               619344ac721b        42 hours ago        1.055 GB
kolla/centos-binary-nova-libvirt                2.0.3               6144729fff5f        42 hours ago        1.106 GB
kolla/centos-binary-neutron-linuxbridge-agent   2.0.3               720c9c5fa63d        42 hours ago        822 MB
kolla/centos-binary-neutron-l3-agent            2.0.3               3a82df7cb9c2        42 hours ago        796.7 MB
kolla/centos-binary-glance-api                  2.0.3               fb67115357d5        42 hours ago        673.8 MB
kolla/centos-binary-neutron-dhcp-agent          2.0.3               8c6fa56497ca        42 hours ago        796.7 MB
kolla/centos-binary-nova-compute-ironic         2.0.3               6f235dc430e5        43 hours ago        1.019 GB
kolla/centos-binary-glance-registry             2.0.3               f4cf7bc1536f        43 hours ago        673.8 MB
kolla/centos-binary-cinder-volume               2.0.3               0197cc13468d        43 hours ago        788.4 MB
kolla/centos-binary-cinder-api                  2.0.3               ed7c623e7364        43 hours ago        800.4 MB
kolla/centos-binary-cinder-rpcbind              2.0.3               75466dc5a3ba        43 hours ago        790.2 MB
kolla/centos-binary-horizon                     2.0.3               92c7ea9fc493        43 hours ago        703.1 MB
kolla/centos-binary-cinder-backup               2.0.3               e3ee19440831        43 hours ago        761.3 MB
kolla/centos-binary-cinder-scheduler            2.0.3               e3ee19440831        43 hours ago        761.3 MB
kolla/centos-binary-nova-consoleauth            2.0.3               96a9638801cd        43 hours ago        609.6 MB
kolla/centos-binary-nova-api                    2.0.3               eff73f704a90        43 hours ago        609.4 MB
kolla/centos-binary-nova-conductor              2.0.3               6016ae01a60d        43 hours ago        609.4 MB
kolla/centos-binary-nova-scheduler              2.0.3               726f100a5533        43 hours ago        609.4 MB
kolla/centos-binary-nova-spicehtml5proxy        2.0.3               c6a1a49e4226        43 hours ago        609.9 MB
kolla/centos-binary-glance-base                 2.0.3               1e4efa0f6701        43 hours ago        673.8 MB
kolla/centos-binary-nova-network                2.0.3               87f6389dd11a        43 hours ago        610.4 MB
kolla/centos-binary-ironic-pxe                  2.0.3               82f25f73c28f        43 hours ago        574.2 MB
kolla/centos-binary-nova-novncproxy             2.0.3               4726875ed228        43 hours ago        610.1 MB
kolla/centos-binary-nova-ssh                    2.0.3               51c70b9e9c47        43 hours ago        610.4 MB
kolla/centos-binary-cinder-base                 2.0.3               7c2d031be713        43 hours ago        761.3 MB
kolla/centos-binary-keystone                    2.0.3               c51a93cc9e2e        43 hours ago        585.2 MB
kolla/centos-binary-ironic-api                  2.0.3               b1771f5cc27f        43 hours ago        570.6 MB
kolla/centos-binary-ironic-inspector            2.0.3               32f4e33e1037        43 hours ago        576.2 MB
kolla/centos-binary-ironic-conductor            2.0.3               d552c64f3a08        43 hours ago        599 MB
kolla/centos-binary-nova-base                   2.0.3               8f077fafc5d8        43 hours ago        588.7 MB
kolla/centos-binary-rabbitmq                    2.0.3               d9e543e4f179        43 hours ago        370.3 MB
kolla/centos-binary-ironic-base                 2.0.3               6c4c453ddbce        43 hours ago        550.8 MB
kolla/centos-binary-openstack-base              2.0.3               cf48d5b3f3ee        43 hours ago        518.2 MB
kolla/centos-binary-mariadb                     2.0.3               cd9b363fe034        43 hours ago        630.5 MB
kolla/centos-binary-memcached                   2.0.3               49c536466427        43 hours ago        354.6 MB
kolla/centos-binary-base                        2.0.3               d04ac1ecd01a        43 hours ago        300 MB
centos                                          latest              980e0e4c79ec        2 days ago          196.7 MB

部署容器

1. 生成密码

openstack环境的密码等变量可以在 /etc/kolla/passwords.yml 中指定，为了方便可以使用kolla-genpwd工具自动生成复杂密码。

kolla-genpwd

为了方便，我们修改其中的管理员登陆密码

vim /etc/kolla/passwords.yml
keystone_admin_password: admin

2. 修改部署配置文件

修改/etc/kolla/globals.yml 文件，指定部署的一些信息

vim /etc/kolla/globals.yml

kolla_base_distro: "centos"
kolla_install_type: "binary"
enable_haproxy: "no"
#kolla_internal_vip_address: "10.10.10.254"
kolla_internal_address: "192.168.2.120"
network_interface: "ens160"
neutron_external_interface: "ens192"
neutron_plugin_agent: "openvswitch"
openstack_logging_debug: "True"

3. 检查配置

kolla-ansible prechecks

4. 开始部署

kolla-ansible deploy

5. 部署成功后查看容器

# docker ps
  CONTAINER ID        IMAGE                                                 COMMAND                  CREATED             STATUS              PORTS               NAMES
  3938136934cf        kolla/centos-binary-horizon:2.0.3                     "kolla_start"            17 hours ago        Up 17 hours                             horizon
  cc68cb8d96e4        kolla/centos-binary-heat-engine:2.0.3                 "kolla_start"            17 hours ago        Up 17 hours                             heat_engine
  96c94995ef7c        kolla/centos-binary-heat-api-cfn:2.0.3                "kolla_start"            17 hours ago        Up 17 hours                             heat_api_cfn
  cb8ae3afb767        kolla/centos-binary-heat-api:2.0.3                    "kolla_start"            17 hours ago        Up 17 hours                             heat_api
  e8f98659e03f        kolla/centos-binary-neutron-metadata-agent:2.0.3      "kolla_start"            17 hours ago        Up 17 hours                             neutron_metadata_agent
  d326fa732c2b        kolla/centos-binary-neutron-l3-agent:2.0.3            "kolla_start"            17 hours ago        Up 17 hours                             neutron_l3_agent
  4b1bbbe4fe5b        kolla/centos-binary-neutron-dhcp-agent:2.0.3          "kolla_start"            17 hours ago        Up 17 hours                             neutron_dhcp_agent
  88b2afbba5d9        kolla/centos-binary-neutron-openvswitch-agent:2.0.3   "kolla_start"            17 hours ago        Up 17 hours                             neutron_openvswitch_agent
  b73d52de75b2        kolla/centos-binary-neutron-server:2.0.3              "kolla_start"            17 hours ago        Up 17 hours                             neutron_server
  1c716402d95f        kolla/centos-binary-openvswitch-vswitchd:2.0.3        "kolla_start"            17 hours ago        Up 17 hours                             openvswitch_vswitchd
  176e7ee659f1        kolla/centos-binary-openvswitch-db-server:2.0.3       "kolla_start"            17 hours ago        Up 17 hours                             openvswitch_db
  457e0921c61a        kolla/centos-binary-nova-ssh:2.0.3                    "kolla_start"            17 hours ago        Up 17 hours                             nova_ssh
  b02acebb3dc3        kolla/centos-binary-nova-compute:2.0.3                "kolla_start"            17 hours ago        Up 17 hours                             nova_compute
  59be78a597d8        kolla/centos-binary-nova-libvirt:2.0.3                "kolla_start"            17 hours ago        Up 17 hours                             nova_libvirt
  668ad8f91920        kolla/centos-binary-nova-conductor:2.0.3              "kolla_start"            17 hours ago        Up 17 hours                             nova_conductor
  34f81b4bc18b        kolla/centos-binary-nova-scheduler:2.0.3              "kolla_start"            17 hours ago        Up 17 hours                             nova_scheduler
  eb47844e6547        kolla/centos-binary-nova-novncproxy:2.0.3             "kolla_start"            17 hours ago        Up 17 hours                             nova_novncproxy
  93563016cf21        kolla/centos-binary-nova-consoleauth:2.0.3            "kolla_start"            17 hours ago        Up 17 hours                             nova_consoleauth
  cc8a1cca2e98        kolla/centos-binary-nova-api:2.0.3                    "kolla_start"            17 hours ago        Up 17 hours                             nova_api
  40db89e89758        kolla/centos-binary-glance-api:2.0.3                  "kolla_start"            17 hours ago        Up 17 hours                             glance_api
  4fa5f0f38f0d        kolla/centos-binary-glance-registry:2.0.3             "kolla_start"            17 hours ago        Up 17 hours                             glance_registry
  f05120c95a9f        kolla/centos-binary-keystone:2.0.3                    "kolla_start"            17 hours ago        Up 17 hours                             keystone
  149a49d57aa6        kolla/centos-binary-rabbitmq:2.0.3                    "kolla_start"            17 hours ago        Up 17 hours                             rabbitmq
  5f4298c3821e        kolla/centos-binary-mariadb:2.0.3                     "kolla_start"            17 hours ago        Up 17 hours                             mariadb
  64f6fbb19892        kolla/centos-binary-cron:2.0.3                        "kolla_start"            17 hours ago        Up 17 hours                             cron
  4cab0e756b61        kolla/centos-binary-kolla-toolbox:2.0.3               "/usr/local/bin/dumb-"   17 hours ago        Up 17 hours                             kolla_toolbox
  293a7ccaab52        kolla/centos-binary-heka:2.0.3                        "kolla_start"            17 hours ago        Up 17 hours                             heka
  6dcf3a2c12cc        kolla/centos-binary-memcached:2.0.3                   "kolla_start"            17 hours ago        Up 17 hours                             memcached

6. 修改虚拟化类型

因为是在虚拟机中安装，不支持kvm，需要修改虚拟类型为qemu

vim /etc/kolla/nova-compute/nova.conf

[libvirt]
...
virt_type=qemu

然后就可以通过 kolla_internal_address 访问openstack环境

一些有用的工具

部署完成后，运行以下命令可以生成一个openrc文件(运行openstack CLI所需的环境变量):
kolla-ansible post-deploy
openrc文件生成之后，使用以下命令可以帮你做一下openstack的初始化工作，包括上传一个glance镜像以及创建几个虚拟网络:
source /etc/kolla/admin-openrc.sh
kolla/tools/init-runonce

由于错误的出现，可能需要多次的部署，而有些错误重新部署是不会进行修正的，所以需要将整个环境进行清理:

tools/cleanup-containers                #可用于从系统中移除部署的容器
tools/cleanup-host                      #可用于移除由于残余网络变化引发的docker启动的neutron-agents主机
tools/cleanup-images                    #可用于从本地缓存中移除所有的docker image

日志查看

kolla通过heka容器来收集所有容器的日志

docker exec -it heka bash

所有的容器都可以从这个目录中获取服务日志：/var/log/kolla/SERVICE_NAME。
如果需要输出日志，请运行：

docker logs

大多数容器不会stdout，上面的命令将不会提供信息。

出错处理

deploy时遇到以下错误:

TASK: [rabbitmq | fail msg="Hostname has to resolve to IP address of api_interface"] ***
failed: [localhost] =&gt; (item={'cmd': ['getent', 'ahostsv4', 'localhost'], 'end': '2016-06-24 04:51:39.738725', 'stderr': u'', 'stdout': '127.0.0.1       STREAM localhost\n127.0.0.1       DGRAM  \n127.0.0.1       RAW    \n127.0.0.1       STREAM \n127.0.0.1       DGRAM  \n127.0.0.1       RAW    ', 'changed': False, 'rc': 0, 'item': 'localhost', 'warnings': [], 'delta': '0:00:00.033351', 'invocation': {'module_name': u'command', 'module_complex_args': {}, 'module_args': u'getent ahostsv4 localhost'}, 'stdout_lines': ['127.0.0.1       STREAM localhost', '127.0.0.1       DGRAM  ', '127.0.0.1       RAW    ', '127.0.0.1       STREAM ', '127.0.0.1       DGRAM  ', '127.0.0.1       RAW    '], 'start': '2016-06-24 04:51:39.705374'}) =&gt; {"failed": true, "item": {"changed": false, "cmd": ["getent", "ahostsv4", "localhost"], "delta": "0:00:00.033351", "end": "2016-06-24 04:51:39.738725", "invocation": {"module_args": "getent ahostsv4 localhost", "module_complex_args": {}, "module_name": "command"}, "item": "localhost", "rc": 0, "start": "2016-06-24 04:51:39.705374", "stderr": "", "stdout": "127.0.0.1       STREAM localhost\n127.0.0.1       DGRAM  \n127.0.0.1       RAW    \n127.0.0.1       STREAM \n127.0.0.1       DGRAM  \n127.0.0.1       RAW    ", "stdout_lines": ["127.0.0.1       STREAM localhost", "127.0.0.1       DGRAM  ", "127.0.0.1       RAW    ", "127.0.0.1       STREAM ", "127.0.0.1       DGRAM  ", "127.0.0.1       RAW    "], "warnings": []}}
msg: Hostname has to resolve to IP address of api_interface

FATAL: all hosts have already failed -- aborting

PLAY RECAP ********************************************************************
to retry, use: --limit @/root/site.retry

localhost                  : ok=87   changed=24   unreachable=0    failed=1

解决办法：

vim /etc/hosts
127.0.0.1     localhost
192.168.2.120 localhost

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