利用Docker构建分布式应用栈

利用Docker构建分布式应用栈

假定Proxy选用了HAProxy，Web应用使用了Metinfo，DB选用了MySQL，OS环境采用CentOS：一、从Docker Hub上下载对应的镜像docker pull centosDocker pull metinfodocker pull haproxydocker pull mysql二、启动各容器并用 --link连接相关容器docker run --link mysql:mysql --name centos /bin/bashdocker run -it --name mysqlmaster mysql /bin/bashdocker run -it --name mysqlslave0 --link mysqlmaster:master mysql /bin/bashdocker run -it --name mysqlslave1 --link mysqlmaster:master mysql /bin/bashdocker run -it --name metinfo0 --link mysqlmaster:db -v ~/program/metinfo0:/usr/src/app metinfo /bin/bashdocker run -it --name metinfo1 --link mysqlmaster:db -v ~/program/metinfo1:/usr/src/app metinfo /bin/bashdocker run -it --name haproxy --link metinfo0:metinfo0 --link metinfo1:metinfo1 -p 6301:6301 -v ~/program/haproxy:tmp haproxy /bin/bash三、配置各节点容器种的应用服务，以实现相应的功能和通信写作。四、应用栈的访问测试，此处以WordPress和MySQL的单节点组合为例展示：[googlebigtable@localhost ~]$ su rootPassword: [root@localhost googlebigtable]# pwd -P/home/googlebigtable[root@localhost googlebigtable]# echo $PATH/usr/local/bin:/usr/local/sbin:/usr/bin:/usr/sbin:/bin:/sbin:/home/googlebigtable/.local/bin:/home/googlebigtable/bin[root@localhost googlebigtable]# cd /home/googlebigtable/temp/dockerworking/[root@localhost dockerworking]# pwd -P/home/googlebigtable/temp/dockerworking[root@localhost dockerworking]# ls -Fgbtwithsshv0.tar[root@localhost dockerworking]# docker pull wordpress:latestlatest: Pulling from library/wordpressafb6ec6fdc1c: Pull complete 3d895574014b: Pull complete c309fdad6410: Pull complete c201f6a5d6f9: Pull complete e87f853892aa: Pull complete 998b2113b400: Pull complete b3c0b4710d3b: Pull complete c79fb2b38801: Pull complete 30aa6f0dd423: Pull complete 8af9a337c36d: Pull complete 64ec85e06910: Pull complete 606f88b4f608: Pull complete 845e768a44c5: Pull complete 232824f4bf64: Pull complete c14e31cd46f2: Pull complete df59d99840f5: Pull complete 0f3a9380af13: Pull complete 348bafbbcb22: Pull complete d96f27aa3b63: Pull complete 58f35ab6fddc: Pull complete 0c1a0d01788e: Pull complete Digest: sha256:0b452b7b45fa770f12e864720abb01bef506f4abe273669402434e94323c97d7Status: Downloaded newer image for wordpress:latestdocker.io/library/wordpress:latest[root@localhost dockerworking]# docker pull mysql:5.55.5: Pulling from library/mysql743f2d6c1f65: Pull complete 3f0c413ee255: Pull complete aef1ef8f1aac: Pull complete f9ee573e34cb: Pull complete 3f237e01f153: Pull complete 03da1e065b16: Pull complete 04087a801070: Pull complete 7efd5395ab31: Pull complete 1b5cc03aaac8: Pull complete 2b7adaec9998: Pull complete 385b8f96a9ba: Pull complete Digest: sha256:12da85ab88aedfdf39455872fb044f607c32fdc233cd59f1d26769fbf439b045Status: Downloaded newer image for mysql:5.5docker.io/library/mysql:5.5[root@localhost dockerworking]#[root@localhost dockerworking]# docker imagesREPOSITORY TAG IMAGE ID CREATED SIZEgbtwithssh v0 a371467d9077 19 hours ago 326MBwordpress latest 675af3ca3193 4 days ago 540MBmysql 5.5 d404d78aa797 12 months ago 205MBcentos 7.5.1804 cf49811e3cdb 14 months ago 200MB[root@localhost dockerworking]#docker run --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root -d mysql:5.5c90e359d5af088a71645b11d8b15653fcdbd3e10d7b00302a62a33cc59cf75c4[root@localhost dockerworking]#docker run -itd --name wordpress -e WORDPRESS_DB_HOST=mysql -e WORDPRESS_DB_PASSORD=root -p 8080:80 --link mysql:mysql -d wordpress38cb9c00ee5fe19121142909ca91df94c327063ab7b3d15863e34def4c5b1ce3[root@localhost dockerworking]# docker ps -aCONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES38cb9c00ee5f wordpress "docker-entrypoint.s…" 9 seconds ago Up 8 seconds 0.0.0.0:8080->80/tcp wordpressc90e359d5af0 mysql:5.5 "docker-entrypoint.s…" About a minute ago Up About a minute 0.0.0.0:3306->3306/tcp mysql8c6eb8f8d4ba cf49811e3cdb "/usr/sbin/init" 20 hours ago Exited (137) 11 hours ago sshb2dfd487a2f3 cf49811e3cdb "/usr/sbin/init" 20 hours ago Exited (137) 20 hours ago great_taussig89e35ee3bc0e cf49811e3cdb "/bin/bash" 20 hours ago Exited (137) 20 hours ago centos7.5[root@localhost dockerworking]#[root@localhost dockerworking]# ifconfigdocker0: flags=4163 mtu 1500inet 172.17.0.1 netmask 255.255.0.0 broadcast 172.17.255.255inet6 fe80::42:ffff:fe0e:f21 prefixlen 64 scopeid 0x20ether 02:42:ff:0e:0f:21 txqueuelen 0 (Ethernet)RX packets 82 bytes 52537 (51.3 KiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 95 bytes 12026 (11.7 KiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

ens33: flags=4163 mtu 1500inet 192.168.20.198 netmask 255.255.255.0 broadcast 192.168.20.255inet6 fe80::b6ce:41aa:1a84:e55 prefixlen 64 scopeid 0x20ether 00:0c:29:a5:3b:4a txqueuelen 1000 (Ethernet)RX packets 311949 bytes 412505340 (393.3 MiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 127795 bytes 7973734 (7.6 MiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73 mtu 65536inet 127.0.0.1 netmask 255.0.0.0inet6 ::1 prefixlen 128 scopeid 0x10loop txqueuelen 1000 (Local Loopback)RX packets 144 bytes 41710 (40.7 KiB)RX errors 0 dropped 0 overruns 0 frame 0TX packets 144 bytes 41710 (40.7 KiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

veth40e86a0: flags=4163 mtu 1500inet6 fe80::8060:66ff:fe4a:fc26 prefixlen 64 scopeid 0x20ether 82:60:66:4a:fc:26 txqueuelen 0 (Ethernet)RX packets 10 bytes 755 (755.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 16 bytes 1244 (1.2 KiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

vethe6ed6e5: flags=4163 mtu 1500inet6 fe80::98e5:50ff:fed8:5c63 prefixlen 64 scopeid 0x20ether 9a:e5:50:d8:5c:63 txqueuelen 0 (Ethernet)RX packets 8 bytes 588 (588.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 18 bytes 1411 (1.3 KiB)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

virbr0: flags=4099 mtu 1500inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255ether 52:54:00:0a:f7:2c txqueuelen 1000 (Ethernet)RX packets 0 bytes 0 (0.0 B)RX errors 0 dropped 0 overruns 0 frame 0TX packets 0 bytes 0 (0.0 B)TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

孟伯，20200520

版权声明：本文内容由网络用户投稿，版权归原作者所有，本站不拥有其著作权，亦不承担相应法律责任。如果您发现本站中有涉嫌抄袭或描述失实的内容，请联系我们jiasou666@gmail.com 处理，核实后本网站将在24小时内删除侵权内容。