I-Docker: konke malunga nezikhongozeli

Njengoko sele usazi, kukho iindidi ezininzi zokubona, enye yazo kukubonwa kwinqanaba lenkqubo yokusebenza, kwaye enye yeeprojekthi ezigqame kakhulu kulo mba I-Docker, Kunye nezinye iiprojekthi zomthombo ovulekileyo ezinje nge-OpenVZ, LXC / LXD, Linux-VServer, njl., Okanye isoftware yeVirtuozzo. Ukuba uyalazi eli hlabathi okanye ukuba uqhelekile kolu hlobo lwebhlog, uya kuba sele uyazi malunga neprojekthi elogo yayo ngumnenga (yiyo loo nto isihloko sabo bangekayazi), kwaye ngaphezulu kwakho konke uya kuba uqaphele njani kwiminyaka yakutshanje ubukho bayo kumajelo eendaba kunye nomdla ukonyuka ngokubonakalayo.

Kwaye kukuba obu buchwephesha butsha ngoku nakwixesha elizayo, ngakumbi ngokukhula ngokukhohlakeleyo kweenkonzo kwi ilifu Siye sathetha amaxesha amaninzi. I-Docker, phakathi kweminye imithombo emininzi evulekileyo kunye neeprojekthi zasimahla, zezo zivumela olu lwando kunye namathuba amahle esiwafunayo kwilifu. Kodwa yintoni iDocker? Yintoni isikhongozeli? Ingaba isebenza kanjani?

I-Docker kunye nezikhongozeli:

Nangona kunjalo impendulo inzima ngakumbi kwaye ndiza kufuna la manqaku, ndiza kuzama ukuwushwankathela. Nangona kunjalo, ukuba ufuna ukwazi ngakumbi ngale projekthi imnandi, kukho iincwadi ezintle kakhulu ezinje ngeAlberto González, uMcebisi weLifu leRed Hat ngoku. Sisikhokelo esisebenzayo esinokusifumana ngexabiso elifikelelekayo kuzo zombini Amazon njengoko agape. Ewe, xa sele sithethile, masazi ukuba yintoni iDocker.

Sonke siyayazi loo nto Izikhongozeli Baye baba sisixhobo esinokubakho okuninzi kwiLinux, kulungile, banokuphunyezwa kwaye balawulwe enkosi kwisoftware yeDocker. Izikhongozeli aziyonto ngaphandle "kweebhokisi" ezizimeleyo ezinezinto eziyimfuneko ukuze zikwazi ukuqhuba inkqubo ethile okanye usetyenziso. Oku kunokuqondwa njengomatshini oqaqambileyo, endaweni yokugqibelela kunye nobunzima asebenza kuwo ngokubonakalayo. Oku kuncitshiswa kuguqulela kwintloko ephezulu.

Iziqulatho zongeza ukukhanya, nazo ukuthwala, ukuzanelisa, kunye nokuguquguquka Inqweneleka kakhulu ngabaphuhlisi. Yonke imibulelo kwi-LXC evela kwikernel yethu eyintandokazi, iLinux, kunye neprojekthi yeDocker uqobo, kunye nezikhongozeli zayo, imifanekiso kunye novimba. Kwaye zezi zibonelelo zizise impumelelo, ethe yaqwalaselwa kukubandakanyeka kwezinye zeenkampani ezinkulu kwicandelo ezinje ngeGoogle, Red Hat, IBM kunye neMicrosoft, kunye nokuphunyezwa kwayo kunye nokwamkelwa okuhle kwiinkampani ezinkulu kunye nelifu iinkonzo esizisebenzisa yonke imihla (i-AWS, uLwandle oluDijithali,…).

Faka iDocker inyathelo ngenyathelo:

Unokhetho oluninzi ukufaka iDocker, ukusuka ekufumaneni i-tarball kunye nekhowudi yemithombo kunye nokuqulunqa, ekufumaneni i-binaries evela kwiindawo zokugcina ezahlukeneyo kwaye uzilawule kunye nabaphathi beephakeji ze-distro OpenUSUS distro yakho, Ubuntu, Debian, CentOS, Fedora, njl. Mhlawumbi ngeephakeji zebhanari zikulungele ngakumbi, kodwa ukuze ungandisi isihloko kakhulu, ndiza kubonisa indlela ethe ngqo ethe gabalala nesebenza kulo naluphi na ulwabiwo:

sudo curl -fsSL https://get.docker.com/ | sh

Elula njengaleyo. Ngoku sinayo umtyholi kunye nomxhasi, eyokugqibela iya kuba yiyo edibana neDemon yedemon kwaye iya kusivumela ukuba senze yonke into enikezelwa yile software. Kodwa kukho into ekufuneka yenziwe, kwaye kukuphakamisa inkonzo, Oko kukuthi, qala iDemon yedemon. Kwinkqubo ungenza oku kulandelayo:

sudo systemctl enable docker

sudo systemctl start docker

Ukuba yonke into ihambe kakuhle, izakusebenza yonke into. Ungajonga nge:

sudo systemctl status docker

Singaqala ukuyisebenzisa ngoku ...

Amanyathelo okuqala: ukwenza isikhongozeli

Ewe, njengoko sele uyazi, isikhongozeli Yiphakheji enayo yonke into eyimfuneko kusetyenziso olunye okanye nangaphezulu, oko kukuthi, kuyafana kumatshini oqinisekileyo, kodwa ulula ngokuxhomekeka kumphathi wokuphunyezwa. Ukuze isikhongozeli sisebenze, kufuneka sibe neelayibrari eziyimfuneko zokwenza, kunye nokuxhomekeka okuthile, njengezinto ezithile zenkqubo yokusebenza. Ewe kunjalo, elinye lamacandelo ayimfuneko yimeko yexesha lokubaleka, oko kukuthi, indawo yokuphumeza enje ngeetoliki zeelwimi ezitolikwayo, i-JVM, iifayile ezinekhowudi okanye eziziimpawu, njl.

Kukhona ezinye imiyalelo esisiseko ye-Docker oya kuthi "uhambe" kuyo ngaphakathi kwendalo, zininzi kakhulu, ezinje ngolwazi, ukufaka, ukubulala, ukumisa, ukuqala, ukwakha i-ps, njl. Ukuze ukwazi ukuzibona zonke kwaye ziyintoni nganye yazo, konke okufuneka ukwenze kukuqhuba:

docker

Ngolwazi oluthe kratya unokujonga amaxwebhu asemthethweni.

Unga kanjani? yenza isikhongozeli ngeDocker? Ewe, ngoku siza kwenza umzekelo, siza kwenza isikhongozeli nge-Ubuntu kwaye oku sisebenzisa i-run command, evumela zombini ukwenza kunye nokuqhuba izikhongozeli (ulwazi ngakumbi baleka -h):

docker run -i -t ubuntu /bin/echo Prueba contenedor

Kwaye oko kuya kusebenzisa umfanekiso wasekhaya ukuba sele sinayo okanye, ukuba ayifumani, iya kuyikhuphela. Yintoni egqithisile kuyakwenza isikhongozeli, iya kwabela indawo i-FS entsha kwaye inyuse. Ewe uya kunika ujongano lwenethiwekhi kunxibelelwano lwendwendwe / lomamkeli. Nje ukuba yenziwe, iya kusibonisa i-echo nebinzana «Uvavanyo lweContainer»Oko sibekile.

Unako bona yonke imifanekiso unantoni no:

docker images

Kwaye ukukrazuka inye, ungasebenzisa i-ID yesikhongozeli nge:

docker start -a <pon-la-ID-del-container>

Ukubamisa, ungasebenzisa stop endaweni yokuqala:

docker stop <pon-la-ID-del-container>

Kwaye oku ziziseko zeDocker. Ndiyathemba ukuba ikuncedile ukuba uqalise kwaye uthathe amanyathelo okuqala amaninzi, kuba inokukunika amathuba amaninzi. Njengoko ubona, ingumxholo obanzi kakhulu kwaye onokuthi uqalise kuwo ukuqala kwesi sifundo okanye uthenge iincwadi ezongezelelweyo ezinje ngezo zikhankanywe kwimihlathi yokuqala, endikucebisayo ukuba ibe lula kwinkcazo esebenzayo. Ungalibali ukushiya izimvo zakho...