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LXD和OpenStack的示例分析

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簡介
LXD(Linux容器守護進程)是一個開源的容器管理平臺,它可以讓用戶輕松地創(chuàng)建、管理和運行容器,OpenStack是一個開源的云計算平臺,它提供了一套完整的云服務組件,包括計算、存儲、網(wǎng)絡等,本文將通過一個簡單的示例來演示如何使用LXD和OpenStack搭建一個基本的容器云環(huán)境。
環(huán)境準備
1、安裝LXD
在Ubuntu系統(tǒng)上,可以使用以下命令安裝LXD:
sudo apt-get update sudo apt-get install lxd
2、安裝Docker
LXD是基于Docker的,因此需要先安裝Docker,在Ubuntu系統(tǒng)上,可以使用以下命令安裝Docker:
sudo apt-get update sudo apt-get install docker.io
3、安裝OpenStack客戶端
為了方便操作OpenStack,我們需要安裝一個OpenStack客戶端,在Ubuntu系統(tǒng)上,可以使用以下命令安裝OpenStack客戶端:
sudo apt-get install python3-openstackclient
4、配置OpenStack客戶端
安裝完成后,需要配置OpenStack客戶端,需要獲取OpenStack的認證信息,包括用戶名、密碼、項目名和認證URL,使用以下命令配置OpenStack客戶端:
export OS_USERNAME=export OS_PASSWORD= export OS_PROJECT_NAME= export OS_AUTH_URL= export OS_IDENTITY_API_VERSION=3
5、初始化LXD數(shù)據(jù)庫
LXD需要一個數(shù)據(jù)庫來存儲容器的狀態(tài)信息,在Ubuntu系統(tǒng)上,可以使用以下命令初始化LXD數(shù)據(jù)庫:
sudo lxc db init
6、啟動LXD服務
完成上述步驟后,可以啟動LXD服務:
sudo systemctl start lxd
7、添加OpenStack驅動
為了讓LXD能夠管理OpenStack上的資源,需要添加一個OpenStack驅動,下載并解壓lxd-openstack驅動:
wget https://github.com/lxc/lxd/releases/download/1.0.0/lxd-openstack-1.0.0.tar.gz tar xvfz lxd-openstack-1.0.0.tar.gz cd lxd-openstack-1.0.0/drivers/remote/openstackclient
修改驅動文件以適應你的OpenStack環(huán)境,將驅動文件復制到LXD的插件目錄:
sudo cp openstackclient_*.so /var/lib/lxd/plugins/remote/openstackclient/
8、重啟LXD服務
完成驅動添加后,需要重啟LXD服務以使驅動生效:
sudo systemctl restart lxd
創(chuàng)建容器網(wǎng)絡
接下來,我們將創(chuàng)建一個簡單的容器網(wǎng)絡,創(chuàng)建一個名為“mynet”的網(wǎng)絡:
sudo lxc network create mynet --provider networkdriver=bridged --config bridge=br0 --ipam type=hostonly --subnet 192.168.1.0/24 --gateway 192.168.1.1 --fixed-range 192.168.1.100/24 --fixed-range 192.168.1.200/24 --dhcp-range 192.168.1.100,192.168.1.400 --gateway 192.168.1.1 --dns-nameservers 8.8.8.8,8.8.4.4 --shared-secret mysecpass --enable-ipv6 --attachable --external --monitoring false --description "My custom network"
創(chuàng)建容器鏡像倉庫
為了方便管理容器鏡像,我們可以創(chuàng)建一個容器鏡像倉庫,創(chuàng)建一個名為“myrepo”的倉庫:
sudo lxc image create myrepo--public yes --push no --order 1 --description "My custom repository" --architecture amd64 --os linux --type tarball --alias myrepo --fingerprint --features 'security2' 'profile' 'layering' 'custom' 'storage' 'devicemapper' 'bitbake' 'packages' 'selinux' 'network' 'virtio' 'blkdev' 'cgroups' 'systemd' 'json' 'expires' 'checksum' 'manifest' 'historytagger' 'archiving' 'migration' 'filesystems' 'mounts' 'repositories' 'signatures' 'tags' 'visibility' 'copyrights' 'virtualization' 'environment' 'configdrive' 'isolation' 'properties' 'devices' 'mountpoints' 'configs' 'consoles' 'memory' 'cpuset' 'capabilities' 'restartpolicy' 'commandline' '--storage-backend lvm zfs rbd devicemapper overlay loopback fs aio ecryptfs dir --storage-driver --storage-opt size=5G --storage-opt cache=true --storage-opt tree='rootfs=ext4,dirmode=0755,uid=${UID},gid=${GID}' --storage-opt mountpoint=/mnt/images --storage-opt devices=disk,path=/dev/sdb vg=myvg lv=mylv thinpool=mypool bdev=mybdev cache=none filesystem=xfs mountopt='noatime,spacebarrier,inodes' security_model=mapped') || true if the image already exists it will not fail but just return success (to avoid repeating the command in every case) && sudo lxc image list | grep myrepo || true make sure the repo is listed and not hidden by default (may be due to an old version of LXD) && sudo lxc image push myrepo && sudo lxc remote add myregistry http://myregistrydomain:5000/v2/ : && sudo lxc remote list && sudo lxc remote show myregistry && sudo lxc remote modify myregistry set default true && sudo lxc remote show myregistry && sudo lxc remote delete myregistry || true remove the remote if you don’t need it anymore (it’s still there for reference) && sudo lxc profile delete default || true remove the default profile (it’s still there for reference) && sudo lxd profile delete default || true remove the default profile (it’s still there for reference) && sudo userdel -rf || true remove the user account after testing (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf ~/myrepo/* clean up the local repository files (it’s still there for reference) && rm -rf $HOME/myrepo/* clean up any remaining files from your home directory (it’s still there for reference) || true remove any remaining files from your home directory (it’s still there for reference) && echo "Congratulations! You have successfully created a basic OpenStack cloud
新聞標題:LXD和OpenStack的示例分析
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