Docker shine tushen tushen buɗaɗɗen aiki wanda ke sarrafa atomatik shigar da aikace-aikace a cikin kwantenan software, yana samar da ƙarin layin abstraction da aikace-aikacen ƙawancen ƙa'idodin aiki ta hanyar amfani da tsarin aiki da yawa.
Docker yana amfani da sifofin keɓe kayan kernel na Linux, kamar cgroups da wuraren suna don bada izinin "kwantena" masu zaman kansu.
Ta wannan hanyar, Docker ya tanadi cewa waɗannan kwantena suna aiki a cikin misali na Linux guda ɗaya, yana guje wa fifiko na farawa da kiyaye injunan kama-da-wane.
Tallafin kwaya na Linux don wuraren sunaye ya ware ra'ayin aikace-aikace game da yanayin aikin sa.
Ciki har da bishiyoyi masu aiki, hanyar sadarwa, ID na mai amfani, da tsarin fayil ɗin da aka saka, yayin da cgroups na kernel suna ba da keɓancewa, gami da CPU, ƙwaƙwalwa, toshe I / O, da kuma hanyar sadarwa.
Sabuwar sigar Docker 18.09
An gabatar da sigar kayan aikin Kayan Kayan Gudanar da Linux na Keɓaɓɓen Linux 18.09, wanda yana ba da babban matakin API don sarrafa kwantena a matakin keɓance na aikace-aikacen mutum.
Docker yana ba ka damar ƙaddamar da matakai na rashin yarda a cikin yanayin keɓewa sannan kuma canja wuri da jigilar kwantena da aka kirkira don waɗannan matakan zuwa wasu sabobin, ɗaukar duk aikin daga ƙirƙirawa, kiyayewa, da kuma kiyaye kwantena.
Tun daga Docker 18.09, lokacin tallafi na saki ya sami fa'ida yayin da masu haɓaka suka haɓaka daga watanni 4 zuwa watanni 7 saboda zamanintar da tsarin cigaban mujallar Docker Community Edition.
Wani mahimmin maki don haskaka wannan sabon sakin na Docker shine an sabunta ainihin lokacin gudanarwar sarrafa kwantena zuwa sakin 1.2 mai dauke da shi.
Wannan ya daidaita amfani da gRPC tsarin sarrafa kwantena kuma ya tabbatar da dacewa tare da dandalin Kubernetes 1.12 da ingantaccen tallafi don hotunan duniya don ɗakunan gine-gine daban-daban (masu yawan baka).
A gefe guda, a cikin Docker 18.09 yiwuwar fadada sabon ginin baya an fadada shi (yana ba da aikin umarnin "docker build"). Don aiwatar da ayyukan tattara shara ta atomatik waɗanda ke tallafawa ta hanyar ƙaddamar da aikin nest kuma baya buƙatar ikon mai amfani da tushen yayin aikin.
Inganta KitKit
Docker 18.09 kuma ya haɗa da zaɓi don jinkirta BuildKit. Wannan sabon gini ne wanda yake inganta aiki, gudanar da ajiya, da fadadawa, yayin kara wasu muhimman sabbin abubuwa.
Ingantaccen aiki: BuildKit ya haɗa da sabunta daidaituwa da ƙirar ɓoyewa wanda ke sa shi saurin sauri, mafi daidaito, kuma mafi šaukuwa.
Tare da wannan canjin da daidaitawar gine-gine, suma Masu haɓaka Docker yanzu suna ba da damar haɓakawa daga injin sigar Community zuwa injin Inuwa tare da sauƙin kunna lasisi.
Ga masu amfani da sigar versionungiyar Docker na yanzu, wannan ƙaura tana nufin buɗe abubuwa da yawa na harkar tsaro da kuma samun damar samun tallafi na ajin-kamfanoni da kuma tsawan manufofin kiyayewa.
Idan aka kwatanta da na baya
An canza lambar don tsara daidaitattun aikin da aikin caching ya canza, wanda hakan ya bada damar hanzarta taron sosai.
Misali, yayin gwajin aikin Dockerfile Moby da aka saita saurin ya karu daga 2 zuwa 9,5 sau saboda aiwatar da matakai masu yawa na hawa tare, yin biris da matakan da ba'ayi amfani dasu ba da kuma ƙarin bayanan bayanai tsakanin saiti.
Ara ikon iya saka sirri a cikin Dockerfile kuma amintar da su cikin aminci yayin aikin ginawa, ba tare da adana su a cikin hotunan da aka samu ba kuma ba tare da an saka su a cikin rumbun ginin ba.
Ikon tura akwatin ssh ssh-wakili, ana aiwatar da shi, alal misali, don haɗawa zuwa wuraren ajiya na masu zaman kansu ta amfani da haɗin haɗin da ke akwai ta hanyar ssh-agent.
Yanzu ana iya sarrafa ma'ajiyar taro, daban daga hotuna.
An kara sabon umarni "docker magini prune" don share ma'ajiyar ajiya da kuma ikon ayyana dokokin tsaftacewa da ƙari.
Idan kanaso ka san kadan game dashi zaku iya ziyartar mahaɗin mai zuwa.