DockeronFreeBSD是Docker在FreeBSD系统上的移植版本。Docker原本是为Linux所开发设计，而最新的FreeBSD11-CURRENT和10.2将提供对Docker的支持。该系统严重依赖ZFS、jail以及64位的Linux兼容层。
安装和使用方法：
# pkg install docker-freebsd ca_root_nss...New packages to be INSTALLED: docker-freebsd: 06252015 ca_root_nss: 3.19.1_1 bash: 4.3.39_2 indexinfo: 0.2.3 gettext-runtime: 0.19.4 go: 1.4.2,1 sqlite3: 3.8.10.2 readline: 6.3.8The process will require 155 MiB more space.26 MiB to be downloaded....You will need to create a ZFS dataset on /usr/docker# zfs create -o mountpoint=/usr/docker <zroot>/docker And lastly enable the docker daemon# sysrc -f /etc/rc.conf docker_enable="YES"# service docker start启动信息：
# service docker onestartStarting docker...# docker versionClient version: 1.7.0-devClient API version: 1.19Go version (client): go1.4.2Git commit (client): 582db78OS/Arch (client): freebsd/amd64Server version: 1.7.0-devServer API version: 1.19Go version (server): go1.4.2Git commit (server): 582db78OS/Arch (server): freebsd/amd64# docker search centosNAME DESCRIPTION STARS OFFICIAL AUTOMATEDcentos The official build of CentOS. 1122 [OK]ansible/centos7-ansible Ansible on Centos7 45 [OK]...# docker pull centoslatest: Pulling from centosf1b10cd84249: Pull complete c852f6d61e65: Pull complete 7322fbe74aa5: Already exists centos:latest: The image you are pulling has been verified. Important: image verification is a tech preview feature and should not be relied on to provide security.Digest: sha256:57554136c655abb33ecb7bb790b1db0279668d3763c3b81f31bc6c4e60e4a1f3Status: Downloaded newer image for centos:latest# docker imagesREPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZEcentos latest 7322fbe74aa5 4 weeks ago 172.2 MB# docker run -t -i centos /bin/bash[root@ /]# uname -aLinux 2.6.32 FreeBSD 11.0-CURRENT #5 r285594: Tue Jul 14 23:30:11 EDT 2015 x86_64 x86_64 x86_64 GNU/Linux运行状态：
# docker psCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES920bc5fbb45c centos "/bin/bash" 9 seconds ago Up 8 seconds jolly_poincare# jls JID IP Address Hostname Path 3 172.17.0.3 /usr/docker/zfs/graph/920bc5fbb45c# zfs list...zroot/docker 119M 107G 6.02M /usr/dockerzroot/docker/03a7a57df9197f242484375c4bc2149248ded5aaafc4feb8e472d6774d495530 8K 107G 112M legacyzroot/docker/03a7a57df9197f242484375c4bc2149248ded5aaafc4feb8e472d6774d495530-init 128K 107G 112M legacy...# mount...x220i/docker on /usr/docker (zfs, local, noatime, nfsv4acls)x220i/docker/d03bcd7082d91179f58c8738f598f5af4db00307a47b5db255aefd30790e8bdc on /usr/docker/zfs/graph/d03bcd7082d9 (zfs, local, noatime, nfsv4acls)linprocfs on /usr/docker/zfs/graph/d03bcd7082d9/proc (linprocfs, local)linsysfs on /usr/docker/zfs/graph/d03bcd7082d9/sys (linsysfs, local)devfs on /usr/docker/zfs/graph/d03bcd7082d9/dev (devfs, local, multilabel)Docker下的FreeBSD：
# docker search freebsdNAME DESCRIPTION STARS OFFICIAL AUTOMATED...lexaguskov/freebsd FreeBSD operating system 0...# docker pull lexaguskov/freebsd...Status: Downloaded newer image for lexaguskov/freebsd:latest# docker run -t -i lexaguskov/freebsd /bin/csh## df -hFilesystem Size Used Avail Capacity Mounted onzroot/docker/485f9654f69d5e9909344dd823dd0608f3734c433b667e9ec04492cc61ddbcfa 107G 176M 107G 0% /网络：
# docker run -t -i centos ping -c2 8.8.8.8WARNING: setsockopt(ICMP_FILTER): Protocol not availableWARNING: your kernel is veeery old. No problems.PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data.64 bytes from 8.8.8.8: icmp_seq=1 ttl=56 time=15.0 ms64 bytes from 8.8.8.8: icmp_seq=2 ttl=56 time=14.1 ms...# docker run -t -i centos /bin/bashecho "nameserver 8.8.8.8" >> /etc/resolv.conf...ping sun.comPING sun.com (156.151.59.35) 56(84) bytes of data.64 bytes from lb-legacy-sun-cms-ucf.oracle.com (156.151.59.35): icmp_seq=1 ttl=244 time=51.5 ms...
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