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ʲôÊÇÈÝÆ÷Docker²»ÊÇÐéÄâ»úµÄÌæ´úÕß, docker²»ÊÇÐéÄ⻯¼¼Êõ, Ëü¸ü¶àÊǹØÓÚÈí¼þµÄÔËÐÐ.
ʲôÊÇÈÝÆ÷,ËüºÍÐéÄâ»úÓÐÊ²Ã´Çø±ð?
Ê×ÏȽéÉÜÒ»ÏÂÐéÄâ»ú:
ÐéÄâ»ú¹ÜÀíÆä°Ñ·þÎñÆ÷µÄÓ²¼þ×ÊÔ´(CPU,ÄÚ´æ,Ó²ÅÌ,ÍøÂçµÈ)Çиî³É¶à¸öÐéÄâµÄ°æ±¾, È»ºó»ùÓÚÕâЩÐéÄâµÄÓ²¼þ½¨Á¢²Ù×÷ϵͳ.
ÐéÄâ»ú½¨Á¢µÄϵͳ¾ÍÏñÊÇÕý³£µÄϵͳ·þÎñÒ»Ñù.
ÓëÐéÄâ»ú¹ÜÀíÆ÷²»Í¬, Docker»òÕ߯äËûµÄÈÝÆ÷ÒýÇæÇиîµÄÊDzÙ×÷ϵͳµÄ×ÊÔ´, ÀýÈç½ø³ÌµÄÃüÃû¿Õ¼ä, ÍøÂçÕ», ´æ´¢Õ»µÈµÈ:
ÿ¸öÈÝÆ÷¶¼ÓÐPIDΪ1µÄ½ø³Ì, ÿ¸öÈÝÆ÷Ò²¶¼ÓÐ×Ô¼ºµÄ¸ùÎļþϵͳ(windowsµÄCÅÌ, linuxµÄ/).
ËùÒÔdocker¿ÉÒÔ³Æ×÷ÊǶÔÕë¶Ô²Ù×÷ϵͳµÄÐéÄ⻯²Ù×÷, Ëü·Ç³£µÄÇáÁ¿¼¶.
¿ÉÒÔ¾ÙһЩÀý×Ó, °²×° sql server, mysql, mongodb, postgresql µÈ, ÏÂÔØ, °²×°, ÅäÖÃ. ÓеϹÊÇͦÂé·³µÄ.
ÏÂÃæ¿´¿´Ê¹ÓÃdocker»áÔõôÑù, Ê×ÏÈÐèÒª°²×°docker.
°²×°DockerDocker for windows ÏÂÔØµØÖ·: https://store.docker.com/editions/community/docker-ce-desktop-windows
°²×°ºÃdockerºó, ϵͳÓÒϽÇÍÐÅÌ´¦»áÓÐdockerµÄͼ±ê, µÈµ½Í¼±ê²»ÔÙÉÁ˸ÁË, ˵Ã÷dockerÒѾÆô¶¯³É¹¦ÁË.
ÓÒ¼üµã»÷ͼ±êÓÐSettings.
¿ÉÒÔͨ¹ýÃüÁîÐп´Ò»ÏÂdockerµÄ״̬:
docker version
¿ÉÒÔ¿´µ½clientÊÇwindows, serverÊÇlinux(ϵͳÐèÒªÆôÓÃHyper-V)ÐéÄâ»ú.
´ÓHyper-V¹ÜÀíÆ÷¿ÉÒÔ¿´µ½Õâ¸ölinuxÐéÄâ»ú:
Ê×ÏÈÈ¥ https://hub.docker.com/ ÕâÀï²éÕÒÐèҪʹÓõÄÈí¼þ, ÀýÈçpostgresql : https://hub.docker.com/_/postgres/
´ÓÒ³Ãæ¿ÉÒÔ¿´µ½ postgresÊÇdocker¹Ù·½ÈϿɵĿâ. Ò³ÃæµÄÏ·½ÓÐʹÓÃ˵Ã÷µÈ.
Ê×ÏȱðÍüÁËÔËÐÐdocker.
È»ºó´Ódocker hubÏÂÔØpostgresÕâ¸öÈí¼þ(Ó¦¸Ã½Ðimage), ÃüÁîÐÐÖ´ÐÐ:
docker pull postgres
ÏÂÔØµÄ¹ý³ÌÓÐʱºò±È½ÏÂý, ÓÈÆäÊÇÔÚ¹úÄÚ (Èç¹ûËÙ¶ÈʵÔÚÌ«Âý, ÄÇô¿ÉÒÔʹÓð¢ÀïÔÆµÄÈÝÆ÷¾µÏñ: https://dev.aliyun.com/search.html?spm=5176.1972343.0.1.340c5aaafU9rRJ):
µÈÁËÒ»¶Îʱ¼äÖ®ºó, ÏÂÔØÍê±Ï:
ÏÖÔÚimageÒѾÏÂÔØÁË, ÄÇô½ÓÏÂÀ´¾ÍÊÇÐèҪͨ¹ýijÖÖ·½Ê½ÔËÐÐÕâ¸öimage, Õâ¾ÍÉæ¼°µ½ÁËcontainerÈÝÆ÷.
ÈÝÆ÷¾ÍÏñÊÇÒ»¸öÒѾ°²×°ºÃµÄÈí¼þ, Ëü¸ºÔð°ÑÕâ¸öimageÅäÖò¢°²×°ºÃ, È»ºó¾Í¿ÉÒÔÔËÐÐÕâ¸ö°²×°ºÃµÄpostgresqlÁË.
ÆÕͨµÄÈí¼þ°²×°ºÃÖ®ºóÔËÐеÄÊÇexe, ¶øÕâ¸öÔËÐеÄÊÇÈÝÆ÷, ÈÝÆ÷ÀïÃæÊÇpostgresql.
Õû¸öÕë¶ÔÆÕͨµÄÈí¼þ°²×°µÄÁ÷³ÌÈçÏÂ:
docker run ÃüÁîdocker run Õâ¸öÃüÁî»áÒ»´ÎÐÔÖ´ÐÐÉÏÃæÕû¸öÁ÷³Ì.
×¢: ËùÓеÄdockerÃüÁî¶¼ÊÇÒÔdocker¿ªÍ·, Ò²¾ÍÊǵ÷ÓÃdocker³ÌÐò. docker run xxx±íʾÈÃdockerÔËÐÐij¸öimage. È»ºó¿Í»§¶Ë¾Í»áͨ¹ýAPIµ÷ÓøæËß·þÎñ¶Ë(DaemonÊØ»¤½ø³Ì, ËüʵÏÖÁËDocker Remote Api»òÕß½ÐDocker Engine Api). DaemonÊ×ÏÈ¿´¿´±¾µØÓÐûÓÐÕâ¸öimage, È»ºóûÕÒµ½Õâ¸öimage, È»ºódaemon¾Í»á´Ódocker hub ÀÈ¡ÏÂÀ´Õâ¸öimageµ½±¾µØ, È»ºóʹÓÃÕâ¸öimageÀ´´´½¨ÐµÄcontainer.
ÏÂÃæÖ´ÐÐdocker run postgres:
¿ÉÒÔ¿´µ½postgresqlÒѾÔËÐÐÆðÀ´ÁË. ÆäÄÚÈݺ͵¥¶À°²×°µÄpostgresqlÔËÐÐÆðÀ´ÊÇÒ»ÑùµÄ.
ʹÓà docker ps ÃüÁî²é¿´ÕýÔÚÔËÐеÄÈÝÆ÷:
È»ºó°´ÕÕ¹Ù·½ÎĵµµÄÃüÁîʹÓÃpsqlÈ¥Á¬½Ópostgresql:
¿ÉÒÔ¿´µ½, ½øÈëµ½psql»·¾³ÁË. Õâ¸öpostgresºÍ´«Í³·½Ê½°²×°µÄpostgresql¹¦ÄÜÊÇÒ»ÑùµÄ.
д¸öpostgresqlÃüÁîÊÔÊÔ:
docker exec ÔËÐÐÈÝÆ÷ÄÚµÄÃüÁî:
ÎÒµçÄÔÏÖÔÚÔËÐеÄÊÇdockerµÄlinuxÈÝÆ÷, ËùÒÔ¿ÉÒÔʹÓÃÕâ¸öÃüÁîÔËÐÐÒ»ÏÂlinuxµÄbash:
Ê×ÏÈʹÓÃdocker psÃüÁî²é¿´ÕýÔÚÔËÐеÄÈÝÆ÷, È»ºóʹÓÃdocker exec -it 08 bashÖ´ÐÐIDΪ08¿ªÍ·µÄÈÝÆ÷ÄÚµÄbashÃüÁî. -it±íʾ½»»¥Ä£Ê½.
È»ºóʹÓÃps -e²é¿´¸ÃÈÝÆ÷ÄÚµÄlinuxµÄ½ø³Ì, ÀïÃæÓÐbash, ¸Õ²ÅÆô¶¯ÔËÐеÄpsql, ps.
Í˳öÔÚ½»»¥Ä£Ê½ÏÂʹÓÃexitÃüÁî½øÐÐÍ˳ö:
Í£Ö¹ÔËÐÐÈÝÆ÷ÔòÐèҪʹÓÃdocker stop ÈÝÆ÷IDÕâ¸öÃüÁî:
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