I-Kubernetes yiprojekthi enkulu yaziwa kubo bonke, ngakumbi ukuthunyelwa kunye nokulawulwa kwe-app. Kwaye uMarkus Eisele, iRed Hat ye-EMEA yoPhuculo loMkhokeli, uneenkcukacha ezibalulekileyo kuye nabani na onomdla wokufunda ngayo.
Kwaye kukuphuhliswa kweshishini bekusoloko kungoyena mceli mngeni mkhulu wobunjineli bekhompyuter, ngakumbi i iinkampani ezinje ngeRed Hat. Kungenxa yoko le nto kule minyaka ilishumi idlulileyo sisukile kulwakhiwo lwe-3-tier yoyilo sayokwakha uyilo lwenoveli esasazwa kakhulu ngemicroservices ukufezekisa phantse izixhobo ezingasikelwanga mda kubaboneleli belifu bakarhulumente. Ukongeza, ezi microservices zinokuchaphazeleka kwimisebenzi ekhethekileyo kwaye elula, xa kuthelekiswa neeseva ezingasasebenzi ezingasasebenziyo.
Ezi microservices Zichaza ukusebenza ngokukuko ngokubhekiselele kwizixhobo ezisetyenzisiweyo, nolunye uncedo olukhulu. Ukongeza, yenye yeendlela ezilungileyo zokuhambisa eziapps kwizikhongozeli, ngokungathi kunjalo oomatshini abancinci abancinci baphathwa. Nangona umahluko ophambili phakathi kwe-VM kunye nesikhongozelo kukuba eyokuqala ayinayo inkqubo yokusebenza, endaweni yoko ibaleka kwisithuba somsebenzisi wenkqubo yokusebenza yomsingathi, ngokungathi yayilusetyenziso. Oku kuthetha ukhuseleko olukhulu.
Kodwa ayizizo zonke izinto eziza kuba ziluncedo, kuba olu loyilo lufuna izikhongozeli ezininzi (enye ngenkonzo nganye okanye ezingaphezulu), oko kuthetha ukuba indlela ezilawulwa ngayo nezilungelelaniswa ngayo zinokuba nzima kwaye zimele umzamo omkhulu womlawuli wenkqubo. Kulapho IiKubernetes zingena kwindawo leyo kwaye yenza yonke into ibe lula kakhulu.
Ukumisela imeko yemveli kwiiKubernetes
Iibubernetes zenza ubomi bube lula kubalawuli, Ukwenza ulawulo oluzenzekelayo ngakumbi lweapps kunye neenkonzo. Ukujonga ukufana, kuya kufana negunya lezibuko kwindawo yokuhamba ngenqwelo moya, eyenza iinqanawa zihambe ngaxeshanye esithubeni. Ngamanye amagama, ekuqaleni, amandla e-Kubernetes anokuthelekiswa nalawo e-Java EE, kuba zombini ziqhuba ii -apps kwizixhobo ezisasazwayo. Nangona kunjalo, izikhongozeli azikhathali kangako malunga neemfuno zenkqubo ngokwayo.
Nge-Kubernetes ungaqwalasela iqela ngokubhala iifayile zoqwalaselo kwi ifomathi yokubhaliweyo (ikakhulu i-YAML, nangona ikwaxhasa iJSON). Ngaphakathi kuya kubakho iiparameter okanye iinkcukacha zento nganye echazwe kulawulo.
Isixhobo seHardware kulungelelwaniso lwendawo yaseBubernet
Ukuze usebenzise ithuba le Ukwehla okuphezulu kunye nokuthembeka enikezwe liqela leKubernetes, abaphuhlisi kunye nabalawuli kufuneka bakhathalele ukubonelela ngesikhongozeli izixhobo ezaneleyo zokuqhuba.
Ukuba kuthathwa ngokuba isihloko sinendawo ezimbini ze-2 GB ye-RAM, ii-cores ezi-4, kunye neendawo ezi-2 zomsebenzi ezine-1 GB ye-RAM kunye ne-2 cores, emva koko Iqela leKubernetes Uya kudinga i-6 GB ye-RAM kunye ne-12 cores ubuncinci. Ezinye izixhobo ezinokuthi zingabonelelwa zizo zonke iikhompyuter zedesktop, nangona kuyinyani ukuba le projekthi ayijoliswanga kwidesktop.
Nangona kunjalo, okwangoku kukho inani leefayile ze- Iindawo ezincinci zokufunda eyenza ukuba abaphuhlisi bakwazi ukukhula kunye neKubernetes kwiindawo zalapha. Imizekelo yazo yiMiniKube, iMicrosoftK8s, i-OpenShift CodeReady Cointainers, njl. Zonke zingamaqoqo e-1 node enye yokubanakho ukuba nayo kwi-PC yedesktop kwaye ufakelo lwayo lunokwenziwa kwimizuzu embalwa.
Ukuvavanya i Inkonzo yendalo esingqongileyo, uhlala kufuneka uye kwiqela leKubernetes lokwenyani. Kodwa isixhobo Iziqulatho zeKhowudi ezilungiselelwe inokwenza ubomi bomphuhlisi bube lula ngakumbi, kubandakanya yonke izixhobo kunye nokufakwa kwindawo enye kweqela leKubernetes.
Ukwamkelwa komthonyama eKubernetes lilizwe elahlukileyo
I-Kubernetes ize ukutshintsha onke amava abaphuhlisi, ababona indlela yokulawula ezi nkonzo zahluke ngokupheleleyo kwaye zidityanisiwe. Ngenxa yoko, ukwamkelwa kweKubernetes kuye kwaba inyathelo elilandelayo elinengqiqo ekwenzeni lula umbhekisi phambili.
Ngokunjalo, iiKubernetes zenza bhetyebhetye ngakumbi, Ngoncedo kunye nezixhobo zophuhliso lweMveli kubernetes, kunye nemiceli mngeni emitsha ...