Chidebe cha Docker ndi pulogalamu yaying'ono komanso yonyamulika yomwe imanyamula chilichonse chofunikira kuti pulogalamu iyendetse: khodi, nthawi yogwiritsira ntchito, malaibulale, ndi zida zamachitidwe. Kwa magulu a DevSecOps, opanga mapulogalamu, ndi akatswiri achitetezo, kumvetsetsa chomwe chidebecho ndi Docker ndikofunikira kuti athe kupanga kutumiza kotetezeka komanso kokulirapo. pipelines.
Mosiyana ndi makina enieni, ma container samakhala ndi makina ogwiritsira ntchito onse. M'malo mwake, amagawana kernel ya OS pamene ikugwira ntchito ngati njira zodzipatula. Kapangidwe kameneka kamachepetsa ndalama zomwe zimagwiritsidwa ntchito ndipo kamalola ma container kuyamba nthawi yomweyo, ndipo kamapangitsa kuti akhale oyenera kupanga mapulogalamu amakono ndi kuyika. Poyesa kumvetsetsa chomwe chidebe mu Docker ndi, ndikofunikira kwambiri kuzindikira phindu lomwe limapereka. Aliyense amene akudzifunsa kuti chidebe cha Docker ndi chiyani ayenera kuchiganizira ngati njira ina yabwino kwambiri m'malo mwa virtualization yachikhalidwe.
Tanthauzo:
Ndiye, kodi chidebe cha Docker ndi chiyani chomwe chimagwiritsidwa ntchito padziko lonse lapansi? #
Ndi chida chomwe opanga zida amadalira kuti pulogalamu ikhale yogwirizana m'malo osiyanasiyana. Kaya mukugwiritsa ntchito pokonza kapena kupanga, kumvetsetsa chomwe chidebe cha Docker chili kumathandiza kuonetsetsa kuti kusinthaku kukuyenda bwino. Mwanjira ina, chidebe mu Docker ndi chitsanzo cha chithunzi cha Docker. Ganizirani za chithunzicho ngati pulani kapena template yomwe imaphatikizapo pulogalamuyo ndi zonse zomwe zimadalira. Chikayambitsidwa, chimakhala chidebe: njira yoyendetsera, yokhazikika yokhala ndi mafayilo ake, maukonde, ndi malire azinthu. Chidebe chilichonse chimasiyana ndi china komanso ndi makina olandirira, ngakhale kulumikizana kumatheka kudzera mu mawonekedwe a maukonde a Docker. Mu makonzedwe ovuta kwambiri, ma kontena amakonzedwa pogwiritsa ntchito zida monga Kubernetes, zomwe zimawalola kugwira ntchito limodzi ngati gawo la dongosolo lalikulu. Kuti mumvetse bwino zomwe chidebe mu Docker chili, ganizirani kusinthasintha kwake pakukulitsa ma microservices.
Makhalidwe Ofunika a Docker Containers #
Opepuka: Imagawana kernel ya OS yokhazikika, kotero palibe chifukwa chokhazikitsa OS yonse
zam'manja: Imagwira ntchito mofanana m'malo osiyanasiyana
Kutsekedwa: Zimasunga njira, mafayilo, ndi maukonde mosiyana
Zobwerezedwa: Yopangidwa kuchokera ku Dockerfiles kuti ikhale ndi malo ogwirizana
Kuyamba Mwamsanga: Imayambika mu ma milliseconds, zomwe zimafulumizitsa chitukuko ndi kufalitsa
Kapangidwe ka Docker Container #
Anthu akamanena za “container Docker,” nthawi zambiri amatanthauza nsanja yayikulu ya Docker. Kumvetsetsa chomwe container Docker ndi kumaphatikizapo kuzindikira zigawo zake:
- Injini ya Docker: Nthawi yofunikira yogwirira ntchito yomanga ndi kuyendetsa zotengera
- Zithunzi za Docker: Mapulani osasinthika a zotengera
- Fayilo ya Docker: Chikalata chomwe chimafotokoza momwe mungapangire chithunzi
- Kulembetsa kwa Docker: Imasunga ndi kugawana zithunzi (monga Docker Hub)
- Docker CLI & API: Ma interfaces oyang'anira zotengera
Zonsezi pamodzi zimathandiza kutumiza mapulogalamu mwachangu komanso mobwerezabwereza popanda zovuta zambiri. Kufufuza zomwe zili mu chidebe cha Docker kukuwonetsa kufunika kwake pa zomangamanga zamakono.
Milandu Yogwiritsidwa Ntchito Kawirikawiri pa Docker Containers #
Ntchito zazing'ono: Yambani ntchito zodzipatula zomwe zimakula paokha
CI/CD Pipelines: Onetsetsani kuti zomangamanga ndi mayeso zikuchitika m'malo ogwirizana
Malo Oyesera/Opangira Zinthu: Gawani makonzedwe odziwikiratu m'magulu osiyanasiyana
Mapulogalamu Ochokera ku Cloud-Native: Phatikizani ndi nsanja zoyimbira nyimbo
Chitetezo cha Sandboxing: Khodi yoyesera yokha kuti mupewe chiopsezo
Zochitika izi zikuwonetsa kusinthasintha kwa chidebe cha Docker pazinthu zenizeni.
Malingaliro a Chitetezo #
Chitetezo ndi chofunikira kwambiri monga momwe zimakhalira ndi magwiridwe antchito. Njira zabwino kwambiri ndi izi:
- Gwiritsani ntchito Zithunzi Zochepa: Malo ocheperako owukira
- Schotengera cha Mavuto: Mavuto ogwidwa kumayambiriro kwa nthawi yogwira ntchito pipeline
- Mwayi Wochepa: Pewani kuthamanga ngati muzu
- Mafayilo Owerengedwa Okha: Tsekani zotengera
- Kusaina Chithunzi: Gwiritsani ntchito Docker Content Trust kuti mutsimikizire kuti ndi yeniyeni
Chitetezo chimakhudza zonse pipeline: kuyambira pakupanga zithunzi mpaka kukonza ma container ndi kuuma kwa OS. Zida monga Xygeni Thandizani izi mwa kufufuza zofooka, zinsinsi, ndi zolakwika m'makonzedwe onse CI/CD Gawo la kumvetsetsa chomwe chidebe cha Docker ndi chiyani limaphatikizapo kuzindikira udindo wake wachitetezo.
Maukonde ndi Kusungirako Zinthu #
Docker imathandizira njira zingapo zolumikizirana:
- Mlatho: Chokhazikika, maukonde odzipatula a ziwiya
- khamu: Imagawana gulu la netiweki la wolandila
- Zambiri: Amagwiritsidwa ntchito m'malo okhala ndi anthu ambiri
- Macvlan: Imapatsa ma adilesi a MAC kuti agwirizane ndi ma netiweki enieni
Posungira, Docker imapereka:
- Magawo: Yoyang'aniridwa ndi Docker ndipo imakondedwa chifukwa cha kupirira
- Zomangira Zomangira: Kufikira mwachindunji ku ma directory a host
Kusamalira Zida ndi Ma Performance Containers ndi kothandiza, koma malire a zida ndi ofunika. Docker imakulolani kuti muchepetse CPU, memory, I/O, ndi zina zambiri pogwiritsa ntchito zida monga cgroups ndi namespaces. Izi zimatsimikizira kuti zida zimakhalabe mumzere wawo popanda kuletsa njira zina. Zinthu izi ndi gawo la maziko pankhani yokonza magwiridwe antchito.
Pamene magulu ambiri akugwiritsa ntchito njira yogwiritsira ntchito ziwiya, kumvetsetsa bwino chomwe chiwiya cha Docker chimapereka mwayi wabwino wogwiritsa ntchito ziwiyazo.ciskupanga ma ion okhudza kugawa zinthu ndi kukula kwa magwiridwe antchito.
Chifukwa Chake Ma Docker Containers Ndi Ofunika mu DevSecOps #
Kumvetsetsa Docker sikuti kungodziwa ukadaulo, komanso kulola kuti chitukuko chikhale chosavuta, chotetezeka, komanso chokulirapo. Ma container amathandiza magulu kuyenda mwachangu popanda kuwononga kudalirika. Kwa magulu achitetezo, amapereka malo odalirika komanso osavuta kuwayang'anira komanso kuwalimbitsa. Limbikitsani ntchito za gulu lanu komanso chitetezo cha makina anu!
Mu chikhalidwe cha DevSecOps, komwe liwiro ndi chitetezo ziyenera kugwirira ntchito limodzi, zotengera za Docker zimapereka maziko operekera mapulogalamu mosalekeza, odziyimira pawokha, komanso otetezeka. Kuphunzira chomwe chidebe ndi Docker kumathandiza magulu kugwirizanitsa zolinga zawo zachitukuko ndi kukhazikika kwa magwiridwe antchito komanso kulimba mtima.
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