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exit
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/var/lib/lxd/containers/< >/rootfs
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ã - ããã©ã«ãã§ã¯ãLXDãµãŒãã¹ã¯UNIXãœã±ãããä»ããŠæ©èœããŸãããå€éšãããã¯ãŒã¯ã§éããŠç»åãé
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çŸåšãLXDã¯Ubuntu 16.04 LTSã§æ£åžžã«åäœããŸãã ä»ã®ã·ã¹ãã ã§å®è¡ããããšãã§ããŸãããåé¡ãããå Žåããæ£åžžã«æ©èœããªãå ŽåããããŸãã ããšãã°ãCentos 7ã§ã¯ãã³ã³ããã¯ç¹æš©ã¢ãŒãã§ã®ã¿å®è¡ãããæ¢è£œã®lxdã¢ã»ã³ããªã¯ãªããããæåã§ã³ã³ãã€ã«ããå¿
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æ°ããUbuntuããŒãžã§ã³ã§ã¯ãããã©ã«ãã§lxdã¯ãã§ã«çµ±åãããŠããŸãã ã€ã³ã¹ããŒã«ãããŠããªãå Žåã¯ã次ã®ããã«é
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aptitude install lxd
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aptitude update aptitude upgrade aptitude install lxd zfs zfsutils-linux
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眮ãããå Žæã§ãã ã¹ãã¬ãŒãžã«ã¯ãZFSãšDirã®2ã€ã®äž»ãªã¿ã€ãããããŸãã
- ZFSã䜿çšãããšãã³ã³ããã®ã¹ãããã·ã§ãããå³åº§ã«äœæããã³åŸ©å
ããã€ã¡ãŒãžããã³ã³ãããäœæã§ããŸãã ZFSã®ãããã§ãLXDã¹ãããã·ã§ããã¯ãã³ã³ãããŒèªäœãããããªãå°ãªãã¹ããŒã¹ãå æããŸãã
- Dirã¯ãã€ã¡ãŒãžãéåžžã®æ¹æ³ã§ãã£ã¹ã¯ã«ä¿åããŸãã åã¹ãããã·ã§ããã¯ãã³ã³ããèªäœãšåãéãå æããŸãã
ZFSã¯ã«ãŒãããã€ã¹ãšããŠãã¡ã€ã«ã«ããŠã³ãããããããã¹ãã¬ãŒãžã®ãµã€ãºãç£èŠããååãªç©ºãããªãå Žåã¯ã¹ããŒã¹ãå¢ããå¿
èŠããããŸãã ãã©ã€ããŒããªã¢ãŒãã€ã¡ãŒãžã¹ãã¬ãŒãžãããå Žåã¯ãZFSã䜿çšããŠãã³ã³ãããŒã®ã¹ãããã·ã§ãããããã¯ã¢ãããšããŠæã
éä¿¡ããããããããŠã³ããŒãããŠãæ°ããããŒãžã§ã³ãã€ã³ã¹ããŒã«ããããããã¯ã¢ããããã³ã³ãããŒã埩å
ãããããã®ã¯çã«ããªã£ãŠããŸãã
éçšãµãŒããŒã«Dirãã€ã³ã¹ããŒã«ããããšã«ããŸããã LANã§ZFSããã¹ãããŸãã éåžžã®ã¹ã¯ãªããã䜿çšããŠããã¯ã¢ãããäœæããŸã-ããããtarã«ããã¯ããAmazon S3ã«éä¿¡ããŸãã
䜿çšããããã¯ãšã³ãã¹ãã¬ãŒãžã決å®ããããåæåããã»ã¹ãéå§ããŸãã ããã¯æ¬¡ã®ã³ãã³ãã§å®è¡ãããŸãã
lxd init
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èŠããã質åãããŸãã ãŠãŒãã£ãªãã£ã¯æåã®è³ªåãããŸãïŒäœ¿çšããã¹ãã¬ãŒãžã®çš®é¡ã¯ïŒ
Name of the storage backend to use (dir or zfs): dir
çããDirã®å ŽåããŠãŒãã£ãªãã£ã¯ããã«ãããã¯ãŒã¯ã®æ§æã«é²ã¿ãŸãã çããZFSã®å Žåãã·ã¹ãã ã¯æ¬¡ã®è³ªåãããŸãã
Create a new ZFS pool (yes/no)? yes Name of the new ZFS pool: lxd Would you like to use an existing block device (yes/no)? no Size in GB of the new loop device (1GB minimum): 10
ãæ°ããã«ãŒãããã€ã¹ã®ãµã€ãºïŒGBåäœïŒãã¯ãZFSã¹ãã¬ãŒãžã®ãµã€ãºã§ãã ãã¹ãŠã®ç»åãšã³ã³ããã¯ãã®ã¹ãã¬ãŒãžã«ä¿åããããããå€ãã®ç»åãã³ã³ãããä¿åããå Žåã¯ããã®æ°ãå¢ããå¿
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次ã«ããŠãŒãã£ãªãã£ã¯ãå€éšããLXDãžã®ã¢ã¯ã»ã¹ãéãå¿
èŠããããŸããïŒã çãã¯ããŒã§ãã ãããªãã¯ãŸãã¯ãã©ã€ããŒããªããžããªãäœæããå Žåã¯ãyesãšçããå¿
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Would you like LXD to be available over the network (yes/no)? no
LXDããªããžãæ§æãã
ã¹ãã¬ãŒãžã¿ã€ããèšå®ãããšããŠãŒãã£ãªãã£ã¯ãLXDããªããžãèšå®ããŸããïŒããšå°ããŸãã çãã¯ã€ãšã¹ã§ãã
Do you want to configure the LXD bridge (yes/no)? yes
ãããã¯ãŒã¯ã»ããã¢ããã€ã³ã¿ãŒãã§ã€ã¹ãèµ·åããŸãã 次ã®ããã«è³ªåã«çããŠãã ããã
Would you like to setup a network bridge for LXD containers now? Yes Bridge interface name: lxdbr0 Do you want to setup an IPv4 subnet? Yes IPv4 address: 10.200.0.1 IPv4 CIDR mask: 16 First DHCP address: 10.200.100.1 Last DHCP address: 10.200.255.254 Max number of DHCP clients: 25399 Do you want to NAT the IPv4 traffic? Yes Do you want to setup an IPv6 subnet? No
ãããã¯ãŒã¯ã«ã¯ãlxdbr0ã€ã³ã¿ãŒãã§ãŒã¹ãåããããªããžã䜿çšãããŸãã
ããããã¹ã¯10.200.0.0/16ã
ãã¹ãIPã¢ãã¬ã¹ã¯10.200.0.1ã§ãã
DHCPã¯ãã³ã³ããã®IPã10.200.100.1ãã10.200.255.254ã«èªåçã«é
åžããŸããã10.200.0.2ããæåã§èšå®ã§ããŸãã
ã³ã³ããã®ip6ãããã³ã«ã¯çç¥ã§ããŸãã
次ã®ã³ãã³ãã䜿çšããŠãLXDããªããžæ§æãŠãŒãã£ãªãã£ãåèµ·åã§ããŸãã
dpkg-reconfigure -p medium lxd
ã³ã³ããã®éçIPãèšå®ãã
ãã¡ã€ã«ãéããŸãã
nano /etc/default/lxd-bridge
è¡LXC_DHCP_CONFILEã®ã³ã¡ã³ãã解é€ããŠã次ã®ããã«èšè¿°ããŸãã
LXD_CONFILE="/etc/lxd-dnsmasq.conf"
éçIPã¢ãã¬ã¹æ§æãã¡ã€ã«ãäœæããŸãã
nano /etc/lxd-dnsmasq.conf
ãã¹ãã³ã³ããã®éçIPã¢ãã¬ã¹ãèšè¿°ããŸãã
dhcp-host=test,10.200.1.1
å°æ¥çã«ã¯ãä»ã®ã³ã³ããçšã®ä»ã®éçIPã¢ãã¬ã¹ããã®ãã¡ã€ã«ã«è¿œå ã§ããããã«ãªãã§ãããã
/etc/lxd-dnsmasq.confãã¡ã€ã«ãå€æŽãããã³ã«ã次ã®ã³ãã³ãã§lxd-bridgeãåèµ·åããå¿
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service lxd-bridge restart
ããã§è§£æ±ºããªãå Žåã¯ãééã£ãIPãæã€ã³ã³ãããåæ¢ããdnsmasq.lxdbr0.leasesãã¡ã€ã«ãåé€ããŠãããlxd-bridgeãåèµ·åããå¿
èŠããããŸãã
lxc stop test rm /var/lib/lxd-bridge/dnsmasq.lxdbr0.leases service lxd-bridge restart
NATã»ããã¢ãã
ã³ãã³ããå®è¡ããŠNATãæ©èœããã«ã¯ïŒ
echo 1 > /proc/sys/net/ipv4/ip_forward echo "net.ipv4.ip_forward=1" >> /etc/sysctl.conf
Grubãæ§æãã
ãã¡ã€ã«ãç·šé
nano /etc/default/grub
è¡ãå€æŽãã
GRUB_CMDLINE_LINUX="swapaccount=1 quiet"
ãã®è¡ããªããšãlxdãèµ·åãããšãã«ãcgroupã¹ã¯ããã¢ã«ãŠã³ããæ©èœããªããšããèŠåã衚瀺ãããŸããã ãªãã·ã§ã³swapaccount = 1ãæå¹ã«ããããšã«ããŸããã quiet-ããã¯QuietããŒãã·ã¹ãã ã§ãïŒãªãã·ã§ã³ïŒ
èªåå®è¡ãžã®LXDã®è¿œå
systemctl enable lxd
ã·ã¹ãã ã®åèµ·å
Ubuntuãåèµ·åããŸãã
init 6
ä»®æ³ãã·ã³ã€ã¡ãŒãžãã€ã³ã¹ããŒã«ããŠå®è¡ãã
ãªããžããªãè¿œå ããŸãïŒãªãã·ã§ã³ãããã©ã«ãã§ã¯ãç»åã¯ãã§ã«è¿œå ãããŠããŸãïŒïŒ
lxc remote add images images.linuxcontainers.org:8443
ããŠã³ããŒãç»åïŒ
lxc image copy images:centos/6/amd64 local: --alias=centos-image
centos-image-ç»åãžã®å矩èªã§ãããã¢ã¯ã»ã¹ãããã
ã€ã¡ãŒãžãå®è¡ããŸãã
lxc launch local:centos-image test
test-å°æ¥ã®ã³ã³ããã®åå
次ã®2ã€ã®ã³ãã³ãã§ç»åãå®è¡ã§ããŸãã
lxc init local:centos-image test lxc start test
æåã®ã³ãã³ãã¯ã³ã³ãããäœæãã2çªç®ã®ã³ãã³ãã¯ãããèµ·åããŸãã æåã®ã³ãã³ãã¯ãã³ã³ãããäœæããã ãã§å®è¡ããããªãå Žåã«äŸ¿å©ã§ãã
å®è¡äžã®ã³ã³ããã®ã¹ããŒã¿ã¹ã衚瀺ãã
lxc list
ããŒã ã¯æ¬¡ã®æ
å ±ã衚瀺ããå¿
èŠããããŸãã
(Ubuntu)[root@ubuntu /]
LXDã¯ã/ etc / lxc-dnsmasq.confã§æ§æããã³ã³ãããŒã®éçIPãçºè¡ããããšã«æ³šæããŠãã ããã
ãã©ã«ããŒè»¢é
ãã®ã³ãã³ãã¯ããã©ã«ã/ããŒã¿/ãã¹ã/ãã©ã«ãããã©ã«ã/ãã©ã«ãå
ã®ãã¹ãã³ã³ããã«ããŠã³ãããŸã
mkdir -p /data/test/folder chown 100000:100000 /data/test/folder lxc config device add disk_name test disk path=/folder source=/data/test/folder
ãã©ã«ããŒãããŠã³ãããŠãã/ var / lib / lxd / containers / testãã©ã«ããŒã®å
容ã¯å€æŽãããŸããããå¥ã®ãã©ã«ããŒ/ var / lib / lxd / devices / testã«ããŠã³ããããŸãã ãããã£ãŠãã³ã³ãããŒã®ããã¯ã¢ãããšã¹ãããã·ã§ããã«ã¯ãããŠã³ãããããã©ã«ããŒãšãã¡ã€ã«ã¯å«ãŸããŸããã ããã¯ã¢ãããŸãã¯ã€ã¡ãŒãžããã³ã³ãããŒãæŽæ°ããŠããããŠã³ãããããã©ã«ããŒã®å
容ã«ã¯åœ±é¿ããŸããã
次ã®ã³ãã³ãã䜿çšããŠãæ§ææ
å ±ã衚瀺ã§ããŸãã
lxc config show test
ä»®æ³ãã·ã³ã®æ¥ç¶
å®è¡äžã®ãã¹ãã³ã³ããã«ç§»åããŸãã
lxc exec test -- /bin/bash
æ¥ç¶ã確èªããŸãã
ifconfig
çµè«ïŒ
[root@test ~]
NATã確èªããŸãã
ping ya.ru
çµè«ïŒ
[root@test ~]
åºæ¬ããã±ãŒãžãã€ã³ã¹ããŒã«ããŸãã
yum install mc nano openssh-server epel-release wget -y yum update -y chkconfig sshd on service sshd start
ã«ãŒããã¹ã¯ãŒããèšå®ãã
passwd
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exit
SSHæ¥ç¶
ãã¹ãsshããŒãã³ã³ããã«ã³ããŒããŸã
ssh-copy-id root@10.200.1.1
UbuntuãããŒãèŠã€ããããªããšèªã£ãå Žåãæåã«sshããŒãçæãã次ã«ssh-copy-idã³ãã³ãã§ã³ããŒããŸãã ããŒãæ£åžžã«ã³ããŒãããå Žåããã®æé ïŒããŒçæïŒãã¹ãããããŸãã
ssh-keygen
ããã§ããã¹ã¯ãŒããªãã§ïŒèšŒææžã䜿çšããŠïŒsshãä»ããŠã³ã³ãããŒã«å
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ssh root@10.200.1.1
NATãä»ããsshã®è»¢é
å€ãã®å Žåããã¹ãããã€ãã¹ããŠãsshãä»ããŠã³ã³ããã«çŽæ¥æ¥ç¶ããæ©èœãååŸããå¿
èŠããããŸãïŒæ¯åãã¹ãã«ç§»åããªãããã«ãã³ã³ããã«ç§»åããããïŒã
ãããè¡ãã«ã¯ã次ã®ã³ãã³ããå®è¡ããŸãã
iptables -t nat -A PREROUTING -p tcp --dport 22001 -j DNAT --to-destination 10.200.1.1:22
Ubuntuã®èµ·ååŸã«iptablesãèªåä¿åãã
Ubuntuã§ã¯ãããã©ã«ãã§ã¯ãã¹ããã·ã³ãåèµ·åãããšiptablesã倱ãããŸãã ãã®åé¡ã解決ããã«ã¯ããã¡ã€ã«ãäœæããå¿
èŠããããŸãã
nano /etc/network/if-up.d/00-iptables
èšé²ãã¡ã€ã«ã®å
容ïŒ
èµ·åæš©ãèšå®ããŸãã
chmod +x /etc/network/if-up.d/00-iptables
çŸåšã®èšå®ãä¿åããŸãã
iptables-save > /etc/default/iptables
åèµ·åããŠãsshã䜿çšããŠã³ã³ããã«æ¥ç¶ããŠã¿ãŸãã
ssh root@< ip > -p22001
iptablesã埮調æŽãã
ããŒãæã«iptablesãªã«ããªã䜿çšãããšãLXDã¯ã³ãã³ããiptablesã«è¿œå ããéè€ãããšã³ããªãiptablesã«å«ãŸããŸãã ããã«ãããŸããŸãªãµãŒããŒãžã®çä¿¡æ¥ç¶ãçŠæ¢ããå¿
èŠãªããŒãã®ã¿ãéãå¿
èŠããããŸãã
å®æãããªã¹ã/etc/default/iptables
ã2ã€ã®ã¿ã¹ã¯ãåæã«è§£æ±ºããŸãã
ããã¯ã¢ãããäœæãã
ãã®ã¡ãœããã¯ãã€ã³ããŒãã®æºåãã§ããLXDã€ã¡ãŒãžãšããŠã³ã³ãããŒããã¯ã¢ãããäœæããŸãã çæ³çã«ã¯ãã¹ãããã·ã§ãããäœæãããã©ã€ããŒãLXDãªããžããªã«éä¿¡ããå¿
èŠããããŸãã ããããæã«ã¯ãããè¡ãããšãã§ããŸããã ããšãã°ãå°ããªäŒç€Ÿã«ã¯å¥ã®ãµãŒããŒã賌å
¥ããæ©äŒããããŸããã ãã®å ŽåãåçŽãªtar + Amazon S3ãœãªã¥ãŒã·ã§ã³ã§ã§ããŸãã
ããã¯ã¢ãããäœæããã³åŸ©å
ããããã®æ¢è£œã®ã¹ã¯ãªãããããŠã³ããŒãããŸãã
wget https://github.com/vistoyn/lxd_backup/raw/1.1/scripts/lxc-backup -O "/usr/local/bin/lxc-backup" wget https://github.com/vistoyn/lxd_backup/raw/1.1/scripts/lxc-restore -O "/usr/local/bin/lxc-restore"
ã¹ã¯ãªããã®å®è¡ãã©ã°ãèšå®ããŸãã
chmod +x /usr/local/bin/lxc-restore chmod +x /usr/local/bin/lxc-backup
ããã¯ã¢ãããäœæããã³åŸ©å
ããåã«ãäœæ¥ã³ã³ãããåæ¢ããå¿
èŠããããŸãã ååãšããŠãå®è¡äžã®ã³ã³ããã§ããã¯ã¢ãããäœæã§ããŸãããããã¯ã¢ãããäœæãããšãäžéšã®ããŒã¿ã倱ãããå¯èœæ§ããããŸãïŒã³ã³ããã«ã€ã³ã¹ããŒã«ãããŠããããã°ã©ã ã«ãã£ãŠç°ãªããŸãïŒã
dirã®å Žå
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lxc stop test lxc-backup test
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lxc-restore test /backup/lxc/test/snap-test-2016-08-19.tar.bz2
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lxc stop test lxc-backup test.zfs
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lxc-stop test lxc-restore test.zfs /backup/lxc/test/snap-test.zfs-2016-08-19.tar.bz2
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lxc image import /backup/lxc/test/snap-test-2016-08-19.tar.bz2 --alias my-new-image
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lxc launch me-new-image test2
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