如何获取Kolla的OpenStack镜像

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由于，OpenStack社区自Queens版本起，便不再提供将打包好的kolla openstack镜像放在
该链接上

所以，我们要获取Kolla的OpenStack镜像，就只能依靠自己手动获取。有如下几种方法。

从官方源下载镜像

安装kolla-ansible

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# git clone https://github.com/openstack/kolla-ansible -b stable/queens
# pip install kolla-ansible/

编辑globals.yml文件，设置相关参数

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# vim /etc/kolla/globals.yml
kolla_install_type: "source"
kolla_base_distro: "centos"
openstack_release: "queens"

下载镜像

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# kolla-ansible -i all-in-one bootstrap-servers
# kolla-ansible pull

手动构建镜像

下载kolla项目

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# git clone https://github.com/openstack/kolla.git -b stable/queens

生成kolla-build.conf文件

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# pip install tox
# cd kolla/
# tox -e genconfig

构建openstack镜像

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//构建基于centos系统的source源码安装的openstack镜像
# kolla-build -t source -b centos

//或者，构建基于centos系统的binary二进制包安装的openstack镜像
# kolla-build -t binary -b centos

自动化拉取kolla镜像

由于OpenStack社区，已经开始正式将kolla镜像托管在DockerHub上。所以，我们还可以从Docker Hub上直接拉取kolla镜像，由于openstack镜像少则几十，多则上百，因此，这里我编写了一个bash脚本，用于自动化拉取queens版本的kolla镜像。

为了加快从docker hub上拉取镜像，这里，配置上阿里云的镜像加速器。

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# cat /etc/docker/daemon.json 
{
"registry-mirrors": ["https://a5aghnme.mirror.aliyuncs.com"]
}

重启docker服务，生效

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# systemctl daemon-reload && systemctl restart docker

拉取queens版本的kolla镜像

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# cat 01_pull_kolla.sh 
#!/usr/bin/bash

image_tag=queens    #该变量，你可以根据自己需要进行修改

# delete images
docker images | awk '{print $3}' | xargs docker rmi -f

# pull public images
for public_images in memcached kolla-toolbox cron mongodb mariadb rabbitmq keepalived haproxy chrony iscsid tgtd
do
  docker pull kolla/centos-source-$public_images:$image_tag
done

# pull monitor manage images
# it is recommended to use telegraf + influxdb + grafana + collectd + Prometheus
for monitor_images in collectd telegraf grafana influxdb prometheus-server prometheus-haproxy-exporter prometheus-node-exporter prometheus-mysqld-exporter prometheus-memcached-exporter prometheus-cadvisor
do
  docker pull kolla/centos-source-$monitor_images:$image_tag
done

# pull log manage images
for log_images in fluentd elasticsearch kibana
do
  docker pull kolla/centos-source-$log_images:$image_tag
done

# pull nova
for nova in nova-compute nova-consoleauth nova-ssh nova-placement-api nova-api nova-compute-ironic nova-consoleauth nova-serialproxy nova-scheduler nova-novncproxy nova-conductor nova-libvirt
do
  docker pull kolla/centos-source-$nova:$image_tag
done

# pull keystone
for keystone in keystone keystone-fernet keystone-ssh
do
  docker pull kolla/centos-source-$keystone:$image_tag
done

# pull freezer
docker pull kolla/centos-source-freezer-api:$image_tag

# pull glance 
for glance in glance-api glance-registry
do
  docker pull kolla/centos-source-$glance:$image_tag
done

# pull cinder
for cinder in cinder-volume cinder-api cinder-backup cinder-scheduler
do
  docker pull kolla/centos-source-$cinder:$image_tag
done

# pull neutron
for neutron in neutron-server neutron-lbaas-agent neutron-dhcp-agent neutron-l3-agent neutron-openvswitch-agent neutron-metadata-agent neutron-server-opendaylight opendaylight
do
  docker pull kolla/centos-source-$neutron:$image_tag
done

# pull openvswitch
for openvswitch in openvswitch-db-server openvswitch-vswitchd neutron-openvswitch-agent
do
  docker pull kolla/centos-source-$openvswitch:$image_tag
done

# pull ceilometer
for ceilometer in ceilometer-api ceilometer-compute ceilometer-notification ceilometer-central
do
  docker pull kolla/centos-source-$ceilometer:$image_tag
done

# pull gnocchi
for gnocchi in gnocchi-metricd gnocchi-api gnocchi-statsd
do
  docker pull kolla/centos-source-$gnocchi:$image_tag
done

# pull aodh
for aodh in aodh-evaluator aodh-api aodh-listener aodh-notifier
do
  docker pull kolla/centos-source-$aodh:$image_tag
done

# pull heat
for heat in heat-api heat-api-cfn heat-engine
do
  docker pull kolla/centos-source-$heat:$image_tag
done

# pull horizon
docker pull kolla/centos-source-horizon:$image_tag

# pull murano
for murano in murano-api murano-engine
do
  docker pull kolla/centos-source-$murano:$image_tag
done

# pull magnum
for magnum in magnum-api magnum-conductor
do
  docker pull kolla/centos-source-$magnum:$image_tag
done

# pull senlin
for senlin in senlin-api senlin-engine
do
  docker pull kolla/centos-source-$senlin:$image_tag
done

# pull sahara
for sahara in sahara-engine sahara-api
do
  docker pull kolla/centos-source-$sahara:$image_tag
done

# pull trove
for trove in trove-api trove-taskmanager trove-conductor
do
  docker pull kolla/centos-source-$trove:$image_tag
done

# pull swift
for swift in swift-rsyncd swift-proxy-server swift-object-expirer swift-object swift-account swift-container swift-base
do
  docker pull kolla/centos-source-$swift:$image_tag
done

# pull ironic
for ironic in ironic-conductor ironic-pxe ironic-api ironic-inspector
do
  docker pull kolla/centos-source-$ironic:$image_tag
done
docker pull kolla/centos-source-dnsmasq:pike
docker tag kolla/centos-source-dnsmasq:pike kolla/centos-source-dnsmasq:queens
docker rmi -f kolla/centos-source-dnsmasq:pike

# pull cloudkitty
for cloudkitty in cloudkitty-api cloudkitty-processor panko-api
do
  docker pull kolla/centos-source-$cloudkitty:$image_tag
done

# pull kuryr
docker pull kolla/centos-source-kuryr-libnetwork:$image_tag

# save images
images=`docker images | grep queens | awk '{print $1}'`
docker save -o kolla_queens_images.tar $images

# clean pull's images
docker images | awk '{print $3}' | xargs docker rmi -f

将镜像push到本地Registry

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# cat 02_push_kolla.sh 
#!/usr/bin/bash

# load images
docker load --input kolla_queens_images.tar

registry=172.17.51.27:4000    #请将该registry地址，改为你自己环境的地址

# tag images
images=`docker images | grep queens | awk '{print $1}'`
for images_tag in $images
do
  docker tag $images_tag:queens $registry/$images_tag:queens
done

# delete old's images
delete_images=`docker images | grep '^kolla' | awk '{print $1}'`
for delete_images1 in $delete_images
do
  docker rmi $delete_images1:queens
done

# push images
push_images=`docker images | grep queens | awk '{print $1}'`
for push_images1 in $push_images
do
  docker push $push_images1:queens
done

综合，比较以上三种方法的优缺点。这里，推荐使用第三种方法，速度更快，也更便捷。
PS：脚本写得有点搓，不喜可喷。

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