{"id":86472,"date":"2020-06-25T19:41:59","date_gmt":"2020-06-25T17:41:59","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/sovremennaya-infrastruktura-problemy-i-perspektivy"},"modified":"2020-06-25T19:41:59","modified_gmt":"2020-06-25T17:41:59","slug":"sovremennaya-infrastruktura-problemy-i-perspektivy","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/sovremennaya-infrastruktura-problemy-i-perspektivy","title":{"rendered":"Infrastruktura moderne: problemet dhe perspektivat","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/11ee21e8779fbedf460fcdc6e753a151.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nN\u00eb fund t\u00eb majit <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/groups\/feedme.ru\/\">ne<\/a><\/noindex> organizuan nj\u00eb takimin online mbi <noindex><a rel=\"nofollow\" href=\"https:\/\/youtu.be\/uf4EgFmUY1Y\">\u00abInfrastruktura moderne dhe kontejner\u00ebt: problemet dhe perspektivat\u00bb<\/a><\/noindex>. Diskutuam p\u00ebr kontejner\u00ebt, Kubernetes dhe orkestrimin n\u00eb p\u00ebrgjith\u00ebsi, kritere p\u00ebr zgjedhjen e infrastruktur\u00ebs dhe shum\u00eb t\u00eb tjera. Pjes\u00ebmarr\u00ebsit ndan\u00eb raste nga praktika e tyre. <\/p>\n<p><b>Pjes\u00ebmarr\u00ebsit:<\/b><\/p>\n<ul>\n<li><b>Evgeny Potapov, CEO \u00abITSumma\u00bb<\/b>. M\u00eb shum\u00eb se gjysma e klient\u00ebve t\u00eb tij tashm\u00eb po kalojn\u00eb, apo duan t\u00eb kalojn\u00eb n\u00eb Kubernetes.<\/li>\n<li><b>Dmitry Stolyarov, CTO \u00abFlant\u00bb<\/b>. Ka mbi 10 vjet eksperienc\u00eb n\u00eb sistemet me konteiner.<\/li>\n<li><b>Denis Remchukov (aka Eric Oldmann), COO argotech.io, ish-RAO EEC<\/b>. Premtoi t\u00eb flas\u00eb p\u00ebr raste n\u00eb \u00abenterprise-in e gjakosur\u00bb.<\/li>\n<li><b>Andrey Fedorovsky, CTO \u00abNews360.com\u00bb<\/b>. Pas blerjes s\u00eb kompanis\u00eb nga nj\u00eb lojtar tjet\u00ebr, \u00ebsht\u00eb p\u00ebrgjegj\u00ebs p\u00ebr disa projekte ML dhe AI dhe p\u00ebr infrastruktur\u00ebn.<\/li>\n<li><b>Ivan Kruglov, inxhinier sistemesh, ish\u2013Booking.com.<\/b>Ai \u00ebsht\u00eb njeriu q\u00eb me duar e ka b\u00ebr\u00eb shum\u00eb p\u00ebr Kubernetes.<\/li>\n<\/ul>\n<p>\n<b>Temat:<\/b><\/p>\n<ul>\n<li>Insightet e pjes\u00ebmarr\u00ebsve mbi kontejner\u00ebt dhe orkestrimin (Docker, Kubernetes dhe t\u00eb tjera); \u00e7far\u00eb kan\u00eb provuar n\u00eb praktik\u00eb apo kan\u00eb analizuar.<\/li>\n<li>Rasti: Kompania po zhvillon nj\u00eb plan p\u00ebr zhvillimin e infrastruktur\u00ebs p\u00ebr shum\u00eb vite. Si merret vendimi, t\u00eb nd\u00ebrtohet (apo t\u00eb p\u00ebrkthehet infrastruktura aktuale) n\u00eb kontejner dhe Kubernetes apo jo? <\/li>\n<li>Problemet n\u00eb bot\u00ebn cloud-native, \u00e7far\u00eb nuk mjafton, le t\u00eb fantazojm\u00eb se \u00e7far\u00eb do t\u00eb ndodh\u00eb nes\u00ebr.<\/li>\n<\/ul>\n<p>\nU zhvillua nj\u00eb diskutim interesant, mendimet e pjes\u00ebmarr\u00ebsve ishin kaq t\u00eb ndryshme dhe shkaktuan kaq shum\u00eb komente, saq\u00eb d\u00ebshirojm\u00eb t'i ndajm\u00eb ato me ju. Ka <noindex><a rel=\"nofollow\" href=\"https:\/\/www.youtube.com\/watch?v=uf4EgFmUY1Y\">nj\u00eb video p\u00ebr tre or\u00eb<\/a><\/noindex>, dhe m\u00eb posht\u00eb \u00ebsht\u00eb nj\u00eb p\u00ebrmbledhje e diskutimit. <br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Kubernetes \u00ebsht\u00eb standard ose nj\u00eb marketing i shk\u00eblqyer?<\/h2>\n<p>\n<i>\u00abNe erdh\u00ebm te ai (Kubernetes. \u2014 Red.) kur askush nuk e njihte ende. Ne erdh\u00ebm te ai edhe at\u00ebher\u00eb kur nuk ekzistonte. Ne e d\u00ebshironim at\u00eb m\u00eb par\u00eb\u00bb \u2014 <b>Dmitry Stolyarov<\/b><\/i><\/p>\n<p><img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/a814dda8f5e37560b6882535522498a6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga Reddit.com<\/i><\/p>\n<p>5-10 vite m\u00eb par\u00eb kishte nj\u00eb num\u00ebr t\u00eb madh mjetesh, dhe nuk kishte nj\u00eb standard t\u00eb vet\u00ebm. \u00c7do gjasht\u00eb muaj shfaqej nj\u00eb produkt i ri, e ndonj\u00ebher\u00eb m\u00eb shum\u00eb se nj\u00eb. Fillimisht Vagrant, pastaj Salt, Chef, Puppet,\u2026 \u00abdhe ti \u00e7do gjasht\u00eb muaj ndihesh i detyruar t\u00eb rinovosh infrastruktur\u00ebn t\u00ebnde. Ke pes\u00eb administrues q\u00eb vazhdimisht jan\u00eb t\u00eb z\u00ebn\u00eb me rishkrimin e konfigurations\u00bb \u2014 kujton Andrey Fedorovsky. Ai mendon se Docker dhe Kubernetes kan\u00eb \u00abshtypur\u00bb t\u00eb tjer\u00ebt. <b>Docker \u00ebsht\u00eb b\u00ebr\u00eb standardi n\u00eb pes\u00eb vitet e fundit, Kubernetes n\u00eb dy vitet e fundit. Dhe kjo \u00ebsht\u00eb e mir\u00eb p\u00ebr industrin\u00eb.<\/b>.<\/p>\n<p>Dmitri Stolyarov dhe ekipi i tij e duan Kubernetes. Ata e donin nj\u00eb mjet t\u00eb till\u00eb p\u00ebrpara se t\u00eb shfaqej dhe erdh\u00ebn tek ai kur askush nuk e dinte p\u00ebr t\u00eb. Aktualisht, p\u00ebr arsye komoditeti, ata nuk pranojn\u00eb klient\u00eb n\u00ebse kuptojn\u00eb q\u00eb nuk do ta implementojn\u00eb Kubernetes. Sipas Dmitrit, kompania ka \"m\u00ebsime t\u00eb shumta t\u00eb m\u00ebdha suksesi n\u00eb transformimin e trash\u00ebgimis\u00eb s\u00eb tmerrshme\".<\/p>\n<p><b>Kubernetes nuk \u00ebsht\u00eb vet\u00ebm orkestrimi i kontejner\u00ebve, \u00ebsht\u00eb nj\u00eb sistem i menaxhimit t\u00eb konfiguracionit me nj\u00eb API t\u00eb avancuar, komponent t\u00eb pun\u00ebs me rrjetin, balancimin L3 dhe kontrollet Ingress, q\u00eb lejon menaxhimin relativisht t\u00eb leht\u00eb t\u00eb burimeve, t\u00eb shkall\u00ebzimit dhe t\u00eb abstraktimit nga nivelet e poshtme t\u00eb infrastruktur\u00ebs.<\/b><\/p>\n<p>Fatkeq\u00ebsisht, n\u00eb jet\u00ebn ton\u00eb duhet paguar p\u00ebr gjith\u00e7ka. Dhe kjo taks\u00eb \u00ebsht\u00eb e madhe, sidomos kur flitet p\u00ebr kalimin n\u00eb Kubernetes p\u00ebr nj\u00eb kompani me nj\u00eb infrastruktur\u00eb t\u00eb zhvilluar, si\u00e7 mendon Ivan Kruglov. Ai do t\u00eb mund t\u00eb punonte si n\u00eb nj\u00eb kompani me infrastruktur\u00eb tradicionale, ashtu edhe me Kubernetes. E r\u00ebnd\u00ebsishme \u00ebsht\u00eb t\u00eb kuptosh ve\u00e7orit\u00eb e kompanis\u00eb dhe t\u00eb tregut. Por, p\u00ebr shembull, p\u00ebr Evgeny Potapov, i cili do ta p\u00ebrmbledhte Kubernetes si nj\u00eb instrument orkestrimi t\u00eb kontejner\u00ebve, ky problem nuk ekziston. <\/p>\n<p>Evgeny b\u00ebri nj\u00eb analogji me situat\u00ebn n\u00eb vitet 1990, kur lindte programimi objekt-orientuar si nj\u00eb m\u00ebnyr\u00eb p\u00ebr t\u00eb programuar aplikacione komplekse. N\u00eb at\u00eb koh\u00eb diskutimet nuk pushonin dhe shfaqeshin mjete t\u00eb reja q\u00eb mb\u00ebshtesnin OOP. Pastaj lind\u00ebn mikrosh\u00ebrbimet si nj\u00eb m\u00ebnyr\u00eb p\u00ebr t\u00eb ikur nga koncepti monolitik. Kjo, nga ana e saj, \u00e7oi n\u00eb lindjen e kontejner\u00ebve dhe mjeteve p\u00ebr menaxhimin e tyre. \"Mendoj se s\u00eb shpejti do t\u00eb arrijm\u00eb n\u00eb at\u00eb koh\u00eb kur nuk do t\u00eb ket\u00eb pyetje n\u00ebse duhet t\u00eb shkruash nj\u00eb aplikacion t\u00eb vog\u00ebl n\u00eb stilin mikrosh\u00ebrbim, do t\u00eb shkruhet automatikisht si mikrosh\u00ebrbim,\" mendon ai. Po ashtu, Docker dhe Kubernetes me kalimin e koh\u00ebs do t\u00eb b\u00ebhen nj\u00eb zgjidhje standarde pa nevoj\u00ebn p\u00ebr zgjedhje.<\/p>\n<h2>Problemi i bazave n\u00eb stateless<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/5bd0a882ea3cebcafbb846570672be20.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/@jankolar?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText\">Twitter: @jankolario n\u00eb Unsplash<\/a><\/noindex><\/i><\/p>\n<p>N\u00eb dit\u00ebt e sotme ka shum\u00eb receta p\u00ebr t\u00eb nisur bazat e t\u00eb dh\u00ebnave n\u00eb Kubernetes. Edhe si t\u00eb ndash nj\u00eb pjes\u00eb q\u00eb punon me diskun I\/O nga, n\u00eb m\u00ebnyr\u00eb t\u00eb kushtueshme, pjesa e aplikacionit t\u00eb baz\u00ebs. <b>A \u00ebsht\u00eb e mundur q\u00eb n\u00eb t\u00eb ardhmen bazat e t\u00eb dh\u00ebnave t\u00eb modifikohen aq shum\u00eb sa q\u00eb do t\u00eb ofrohen n\u00eb nj\u00eb kuti, ku nj\u00eb pjes\u00eb do t\u00eb orkestrohet p\u00ebrmes Docker dhe Kubernetes, nd\u00ebrsa pjesa tjet\u00ebr e infrastruktur\u00ebs, p\u00ebrmes nj\u00eb programi t\u00eb ve\u00e7ant\u00eb, do t\u00eb siguroj\u00eb pjes\u00ebn e ruajtjes?<\/b> Do t\u00eb modifikohen bazat si produkt?<\/p>\n<p>Ky p\u00ebrshkrim ngjan me menaxhimin e radh\u00ebve, por k\u00ebrkesat p\u00ebr besueshm\u00ebri dhe sinkronizim t\u00eb informacionit n\u00eb bazat e t\u00eb dh\u00ebnave tradicionale jan\u00eb shum\u00eb m\u00eb t\u00eb larta, mendon Andrei. Koeficienti i goditjes n\u00eb cache n\u00eb bazat normale \u00ebsht\u00eb mbi 99%. N\u00ebse nj\u00eb pun\u00ebtor d\u00ebshton, fillohet nj\u00eb tjet\u00ebr, dhe cache 'ngrihet' nga e para. Derisa cache t\u00eb mos ngrihet, pun\u00ebtori punon ngadal\u00eb, k\u00ebshtu q\u00eb nuk mund t\u00eb p\u00ebrballoj\u00eb ngarkes\u00ebn e p\u00ebrdoruesve. Derisa nuk ka ngarkes\u00eb nga p\u00ebrdoruesit, cache nuk ngrihet. Kjo \u00ebsht\u00eb nj\u00eb rreth vicioz. <\/p>\n<p>Dmitri \u00ebsht\u00eb n\u00eb thelb kund\u00ebr, - kuorumi dhe sharding zgjidhin problemin. Por Andrei insiston se zgjidhja nuk \u00ebsht\u00eb e p\u00ebrshtatshme p\u00ebr t\u00eb gjith\u00eb. N\u00eb disa raste, nj\u00eb kuorum do t\u00eb b\u00ebj\u00eb, por ai i jep nj\u00eb ngarkes\u00eb shtes\u00eb rrjetit. Baza NoSQL nuk \u00ebsht\u00eb e p\u00ebrshtatshme p\u00ebr \u00e7do situat\u00eb. <\/p>\n<p>Pjes\u00ebmarr\u00ebsit e mitapit jan\u00eb ndar\u00eb n\u00eb dy grupe.<\/p>\n<p>Denis dhe Andrei pretendojn\u00eb se gjith\u00e7ka q\u00eb shkruhet n\u00eb disk \u2014 bazat dhe t\u00eb tjera \u2014 n\u00eb ekosistemin aktual t\u00eb Kubernetesit nuk \u00ebsht\u00eb e mundur. <b>Nuk \u00ebsht\u00eb e mundur t\u00eb ruhet integriteti dhe q\u00ebndrueshm\u00ebria e t\u00eb dh\u00ebnave produktive n\u00eb Kubernetes. Ky \u00ebsht\u00eb nj\u00eb tipar themelor.<\/b> Zgjidhja: infrastruktura hibride. <\/p>\n<p>Edhe bazat moderne cloud native, si MongoDB dhe Cassandra, ose radh\u00ebt e mesazheve, si Kafka ose RabbitMQ, k\u00ebrkojn\u00eb ruajtje t\u00eb vazhdueshme t\u00eb t\u00eb dh\u00ebnave jasht\u00eb Kubernetes. <\/p>\n<p>Evgeniy kund\u00ebrshton: \"Bazat n\u00eb Kubernetes jan\u00eb nj\u00eb traum\u00eb e nivelit t\u00eb lart\u00eb, e lidhur me at\u00eb se nuk ka adoptim t\u00eb cloud-it n\u00eb Rusi\". Kompanit\u00eb e vogla ose t\u00eb mesme n\u00eb Per\u00ebndim jan\u00eb t\u00eb fokusuar n\u00eb Cloud. Bazat Amazon RDS jan\u00eb m\u00eb t\u00eb lehta p\u00ebr t'u p\u00ebrdorur sesa t\u00eb merresh vet\u00eb me Kubernetes. N\u00eb Rusi, p\u00ebrdorin Kubernetes \"on-premise\" dhe transferojn\u00eb aty bazat kur p\u00ebrpiqen t\u00eb zbulojn\u00eb kafaz\u00ebt.<\/p>\n<p>Dmitri gjithashtu nuk u pajtua me pretendimin se asnj\u00eb baz\u00eb nuk mund t\u00eb mbahet n\u00eb Kubernetes: \"Baza \u00ebsht\u00eb e ndryshme nga baza. Dhe n\u00ebse futni nj\u00eb baz\u00eb relacional t\u00eb madhe \u2014 asnj\u00ebher\u00eb. N\u00ebse futni di\u00e7ka t\u00eb vog\u00ebl dhe cloud native, q\u00eb \u00ebsht\u00eb moralsh\u00ebm e p\u00ebrgatitur p\u00ebr nj\u00eb jet\u00eb gjysm\u00eb ephemeral, gjith\u00e7ka do t\u00eb shkoj\u00eb mir\u00eb.\" Dmitri gjithashtu p\u00ebrmendi se mjetet e menaxhimit t\u00eb bazave nuk jan\u00eb t\u00eb gatshme p\u00ebr as Docker dhe as Kubernetes, k\u00ebshtu q\u00eb shkaktohen v\u00ebshtir\u00ebsi t\u00eb m\u00ebdha.<\/p>\n<p>Ivan, p\u00ebr pjes\u00ebn e tij, \u00ebsht\u00eb i sigurt se madje edhe n\u00ebse hiqen parimet stateful dhe stateless, ekosistemi i zgjidhjeve enterprise n\u00eb Kubernetes ende nuk \u00ebsht\u00eb gati. Me Kubernetesin \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb p\u00ebrmbushen k\u00ebrkesat e legjislacionit dhe rregullator\u00ebve. P\u00ebr shembull, \u00ebsht\u00eb e pamundur t\u00eb krijohet nj\u00eb zgjidhje p\u00ebr ofrimin e identitetit, ku k\u00ebrkohen garanci t\u00eb rrepta p\u00ebr identifikimin e server\u00ebve, deri n\u00eb harduerin q\u00eb vendoset n\u00eb servera. Ky sektor po zhvillohet, por p\u00ebr momentin nuk ka zgjidhje.<br \/>\nPjes\u00ebmarr\u00ebsit nuk arrit\u00ebn t\u00eb bien dakord, k\u00ebshtu q\u00eb n\u00eb k\u00ebt\u00eb pjes\u00eb nuk do t\u00eb ket\u00eb konkluzione. M\u00eb mir\u00eb do t\u00eb sjellim disa shembuj praktik.<\/p>\n<h3>Rasti 1. Siguria kibernetike e \"megaregulatorit\" me baza jasht\u00eb Kubernetesit.<\/h3>\n<p>\nN\u00eb rastin e nj\u00eb sistemi t\u00eb zhvilluar t\u00eb siguris\u00eb kibernetike, p\u00ebrdorimi i kontejner\u00ebve dhe orkestrimit lejon mbrojtjen nga sulme dhe nd\u00ebrhyrje. P\u00ebr shembull, n\u00eb nj\u00eb megaregulator, Denis dhe ekipi i tij realizuan nj\u00eb lidhje midis orkestratorit dhe nj\u00eb sh\u00ebrbimi SIEM t\u00eb trajnuar, i cili analizon log\u00ebt n\u00eb koh\u00eb reale dhe identifikon procesin e sulmit, thyerjes ose d\u00ebshtimit. N\u00eb rast sulmi, p\u00ebrpjekjesh p\u00ebr t\u00eb vendosur di\u00e7ka, apo gjat\u00eb nj\u00eb nd\u00ebrhyrjeje nga nj\u00eb virus-k\u00ebrkes\u00eb, ai p\u00ebrmes orkestratorit aktivizon kontejner\u00ebt me aplikacionet m\u00eb shpejt se sa ato infektohen, ose m\u00eb shpejt se sa sulmuesi godet.<\/p>\n<h3>Rasti 2. Pjes\u00ebrisht migrojn\u00eb bazat e t\u00eb dh\u00ebnave t\u00eb Booking.com n\u00eb Kubernetes.<\/h3>\n<p>\nN\u00eb Booking.com, baza kryesore e t\u00eb dh\u00ebnave \u00ebsht\u00eb MySQL me replikim asinkron - ka master dhe nj\u00eb hierarki t\u00eb t\u00eb slaveve. N\u00eb momentin q\u00eb Ivan u largua nga kompania, ishte nisur nj\u00eb projekt p\u00ebr transferimin e slaveve, t\u00eb cil\u00ebt mund t\u00eb \"p\u00ebrcaktohen\" me nj\u00eb d\u00ebmtim t\u00eb caktuar.<\/p>\n<p>P\u00ebrve\u00e7 baz\u00ebs kryesore, ka nj\u00eb instalim t\u00eb Cassandra me orkestrim t\u00eb shkruar vet\u00eb, t\u00eb cilin e kishin krijuar edhe p\u00ebrpara se Kubernetes t\u00eb dilte n\u00eb treg. Problemet n\u00eb k\u00ebt\u00eb drejtim nuk ekzistojn\u00eb, por ajo ka persistent n\u00eb SSD lokale. Magazinat e larg\u00ebta, madje edhe brenda nj\u00eb qendre t\u00eb t\u00eb dh\u00ebnave, nuk p\u00ebrdoren p\u00ebr shkak t\u00eb problemeve me vonesat e larta.<\/p>\n<p>Klasa e tret\u00eb e bazave t\u00eb t\u00eb dh\u00ebnave \u00ebsht\u00eb sh\u00ebrbimi i k\u00ebrkimit t\u00eb Booking.com, ku \u00e7do nod\u00eb sh\u00ebrbimi \u00ebsht\u00eb nj\u00eb baz\u00eb t\u00eb dh\u00ebnash. P\u00ebrpjekjet p\u00ebr t\u00eb transferuar sh\u00ebrbimin e k\u00ebrkimit n\u00eb Kubernetes d\u00ebshtuan, sepse \u00e7do nod\u00eb ka 60-80 GB hap\u00ebsir\u00eb lokale, t\u00eb cilat \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb \"ngjiten\" dhe \"ngrohen\".<\/p>\n<p>Si rezultat, motori i k\u00ebrkimit nuk u transferua n\u00eb Kubernetes, dhe Ivan nuk mendon se do t\u00eb ket\u00eb p\u00ebrpjekje t\u00eb reja n\u00eb afatin e af\u00ebrt. Baza MySQL u transferua napjes\u00ebrisht: vet\u00ebm slave, t\u00eb cilat nuk \u00ebsht\u00eb e frikshme t\u00eb \"p\u00ebrcaktohen\". Cassandra \"i mbijetoi\" shk\u00eblqyesh\u00ebm.<\/p>\n<h2>Zgjedhja e infrastruktur\u00ebs si nj\u00eb detyr\u00eb pa zgjidhje t\u00eb p\u00ebrgjithshme<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/35cc454130402e47fcb9db3dbf159abb.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga <noindex><a rel=\"nofollow\" href=\"https:\/\/www.pexels.com\/@artunchained?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Manuel Geissinger nga Pexels<\/a><\/noindex><\/i><\/p>\n<p>Supozoni se kemi nj\u00eb kompani t\u00eb re, ose nj\u00eb kompani ku nj\u00eb pjes\u00eb e infrastruktur\u00ebs \u00ebsht\u00eb nd\u00ebrtuar n\u00eb m\u00ebnyr\u00eb t\u00eb vjet\u00ebr. Ajo po zhvillon nj\u00eb plan p\u00ebr zhvillimin e infrastruktur\u00ebs p\u00ebr vitet n\u00eb vazhdim. Si merret vendimi p\u00ebr t\u00eb nd\u00ebrtuar infrastruktur\u00ebn n\u00eb konteiner\u00eb dhe Kubernetes apo jo? <\/p>\n<p>Kompani q\u00eb garojn\u00eb p\u00ebr nanosekonda jan\u00eb p\u00ebrjashtuar nga diskutimi. Konservatizmi e sh\u00ebndosh\u00eb kompensohet p\u00ebr shkak t\u00eb besueshm\u00ebris\u00eb, por megjithat\u00eb, ka kompani q\u00eb \u00ebsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb shqyrtojn\u00eb qasje t\u00eb reja.<\/p>\n<p>Ivan: \"Un\u00eb do t\u00eb filloja nj\u00eb kompani n\u00eb cloud, thjesht sepse \u00ebsht\u00eb m\u00eb e shpejt\u00eb\", edhe pse nuk \u00ebsht\u00eb domosdoshm\u00ebrisht m\u00eb e lir\u00eb. Me zhvillimin e kapitalit t\u00eb rrezikut, startup-et nuk kan\u00eb probleme t\u00eb m\u00ebdha me financat, dhe detyra kryesore \u00ebsht\u00eb t\u00eb fitojn\u00eb tregun. <\/p>\n<p>Ivan e mban q\u00ebndrimin se <b>zhvillimi i infrastruktur\u00ebs aktuale \u00ebsht\u00eb kriteri i zgjedhjes<\/b>. N\u00ebse n\u00eb t\u00eb kaluar\u00ebn jan\u00eb b\u00ebr\u00eb investime t\u00eb konsiderueshme dhe ajo funksionon, nuk ka sens t\u00eb riparosh. N\u00ebse infrastruktura nuk \u00ebsht\u00eb e zhvilluar dhe ka probleme me mjete, sigurin\u00eb dhe monitorimin, ka kuptim t\u00eb shqyrtohet infrastruktura e shp\u00ebrndar\u00eb. <\/p>\n<p>Tatimi duhet paguar n\u00eb \u00e7do rast, dhe Ivan do t\u00eb paguante at\u00eb, i cili do t\u2019i mund\u00ebsonte atij t\u00eb paguante m\u00eb pak n\u00eb t\u00eb ardhmen. \"<b>Sepse thjesht p\u00ebr shkak se udh\u00ebtoj n\u00eb nj\u00eb tren t\u00eb cilin e l\u00ebvizin t\u00eb tjer\u00ebt, do t\u00eb shkoj shum\u00eb m\u00eb larg se po t\u00eb ulem n\u00eb nj\u00eb tren tjet\u00ebr, n\u00eb t\u00eb cilin do t\u00eb duhet ta mbush vet\u00eb me karburant.<\/b>\" thot\u00eb Ivan. Kur kompania \u00ebsht\u00eb e re dhe k\u00ebrkesat p\u00ebr latenc\u00eb jan\u00eb dhjet\u00ebra milisekonda, Ivan do t\u00eb shikonte n\u00eb \"operatoret\", n\u00eb t\u00eb cil\u00ebt sot \"fitojn\u00eb\" bazat e t\u00eb dh\u00ebnave klasike. Ata ngritin zinxhirin e replikimit, i cili nd\u00ebrlikon automatikisht n\u00eb rast d\u00ebshtimi dhe k\u00ebshtu me radh\u00eb...<\/p>\n<p>P\u00ebr nj\u00eb kompani t\u00eb vog\u00ebl me disa server\u00eb n\u00eb Kubernetes nuk ka kuptim, - pohon Andrei. Por n\u00ebse ajo planifikon t\u00eb rritet n\u00eb nj\u00ebqind server\u00eb dhe m\u00eb shum\u00eb, at\u00ebher\u00eb \u00ebsht\u00eb e nevojshme automatizimi dhe nj\u00eb sistem menaxhimi t\u00eb burimeve. 90 % e rasteve justifikojn\u00eb shpenzimet. P\u00ebr m\u00eb tep\u00ebr, pavar\u00ebsisht nga niveli i ngarkes\u00ebs dhe burimeve. T\u00eb gjith\u00eb, nga startup-et deri te kompanit\u00eb e m\u00ebdha me miliona audienc\u00eb, \u00ebsht\u00eb e arsyeshme t\u00eb fillojn\u00eb t\u00eb shikojn\u00eb gradualisht n\u00eb produktet p\u00ebr orkestrimin e konteiner\u00ebve. \"Po, kjo padyshim \u00ebsht\u00eb e ardhmja\", - beson Andrei.<\/p>\n<p>Denis sh\u00ebnoi dy kriteret kryesore - <b>shkall\u00ebzueshm\u00ebria dhe q\u00ebndrueshm\u00ebria e funksionimit.<\/b> Ai do t\u00eb zgjedh\u00eb ato mjete q\u00eb i p\u00ebrshtaten m\u00eb mir\u00eb k\u00ebtij problemi. \u201cKjo mund t\u00eb jet\u00eb nj\u00eb pajisje e montuar vet\u00eb, dhe mbi t\u00eb Nutanix Community Edition. Mund t\u00eb jet\u00eb nj\u00eb linj\u00eb e dyt\u00eb si nj\u00eb aplikacion n\u00eb Kuber me nj\u00eb baz\u00eb t\u00eb dh\u00ebnash n\u00eb backend, e cila riprodhohet dhe ka parametra t\u00eb caktuar RTO dhe RPO\u201d (q\u00ebllimet e koh\u00ebs s\u00eb rikuperimit \/ pik\u00ebs s\u00eb rikuperimit \u2014 <i>shembuj<\/i>).<\/p>\n<p>Evgeni theksoi nj\u00eb problem t\u00eb mundsh\u00ebm me kuadrot. N\u00eb momentin aktual, n\u00eb treg nuk ka shum\u00eb specialist\u00eb t\u00eb nivelit t\u00eb lart\u00eb q\u00eb kuptojn\u00eb \u201cpjes\u00ebt e brendshme\u201d. N\u00eb t\u00eb v\u00ebrtet\u00eb, n\u00ebse teknologjia e zgjedhur \u00ebsht\u00eb e vjet\u00ebr, \u00ebsht\u00eb e v\u00ebshtir\u00eb t\u00eb rekrutosh dik\u00eb tjet\u00ebr p\u00ebrve\u00e7 njer\u00ebzve t\u00eb moshuar q\u00eb jan\u00eb t\u00eb m\u00ebrzitur dhe t\u00eb lodhur nga jeta. Megjithat\u00eb, pjes\u00ebmarr\u00ebsit e tjer\u00eb mendojn\u00eb se kjo \u00ebsht\u00eb \u00e7\u00ebshtje e trajnimit t\u00eb kuadrove. <br \/>\nN\u00ebse do t\u00eb vendosnim pyetjen e zgjedhjes: t\u00eb ngrem\u00eb nj\u00eb kompani t\u00eb vog\u00ebl n\u00eb Public Cloud me baza n\u00eb Amazon RDS ose \u201con premise\u201d me baza n\u00eb Kubernetes, at\u00ebher\u00eb, p\u00ebrkund\u00ebr disa t\u00eb metave, zgjedhja e pjes\u00ebmarr\u00ebsve ishte Amazon RDS. <\/p>\n<p>Pasi shumica e d\u00ebgjuesve t\u00eb mitapit nuk jan\u00eb nga \u201ckorporata e madhe\u201d, at\u00ebher\u00eb <b>zgjidhjet e shp\u00ebrndara jan\u00eb ajo p\u00ebr t\u00eb cil\u00ebn duhet t\u00eb synojm\u00eb. Sistemet e ruajtjes s\u00eb t\u00eb dh\u00ebnave duhet t\u00eb jen\u00eb t\u00eb shp\u00ebrndara, t\u00eb besueshme, dhe t\u00eb krijojn\u00eb nj\u00eb latency q\u00eb matet n\u00eb disa milisekonda, maksimumi dhjet\u00ebra<\/b>, \u2014 p\u00ebrfundoi Andrei.<\/p>\n<h2>Vler\u00ebsimi i p\u00ebrdorimit t\u00eb Kubernetes<\/h2>\n<p>\nD\u00ebgjuesi Anton Zhbankov b\u00ebri nj\u00eb pyetje p\u00ebr apologjet\u00ebt e Kubernetes: si u zgjodh dhe u realizua studimi teknik-ekonomik? Pse Kubernetes, pse jo makinat virtuale, p\u00ebr shembull? <\/p>\n<p><img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/cd179deffb9bf66c3cb12d7ca9ef9244.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/@artyana?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText\">Tatyana Eremina n\u00eb Unsplash<\/a><\/noindex><\/i><\/p>\n<p>Dhe p\u00ebr k\u00ebt\u00eb u p\u00ebrgjigj\u00ebn Dmitri dhe Ivan. N\u00eb t\u00eb dy rastet, p\u00ebrmes nj\u00eb metode provash dhe gabimesh, u krijua nj\u00eb renditje vendimesh, si rezultat i s\u00eb cil\u00ebs t\u00eb dy pjes\u00ebmarr\u00ebsit arrit\u00ebn te Kubernetes. Tani biznesi fillon t\u00eb zhvilloj\u00eb vet\u00eb softuer, i cili ka kuptim t\u00eb transferohet n\u00eb Kuber. Nuk \u00ebsht\u00eb fjala p\u00ebr sistemet klasike t\u00eb huaja, si 1C. Kubernetes ndihmon kur nd developers duan t\u00eb b\u00ebjn\u00eb l\u00ebshime operacionale me p\u00ebrmir\u00ebsimin e vazhduesh\u00ebm pa nd\u00ebrprerje.<\/p>\n<p>Ekipa e Andrei p\u00ebrpiqej t\u00eb b\u00ebnte nj\u00eb klas\u00ebr t\u00eb shkall\u00ebzuesh\u00ebm mbi baza t\u00eb makinave virtuale. Nodat binin si dominot, gj\u00eb q\u00eb ndonj\u00ebher\u00eb \u00e7onte n\u00eb r\u00ebnien e klasit. \u201cTeoretikisht, mund ta p\u00ebrfundojm\u00eb dhe ta mb\u00ebshtesim me dor\u00eb, por \u00ebsht\u00eb e lodhshme. Dhe n\u00ebse ka nj\u00eb zgjidhje n\u00eb treg q\u00eb lejon t\u00eb punosh nga kutia, at\u00ebher\u00eb ne shkojm\u00eb me k\u00ebnaq\u00ebsi drejt saj. Dhe ne e b\u00ebm\u00eb p\u00ebrfundimisht k\u00ebt\u00eb zgjidhje.\u201d, \u2014 thot\u00eb Andrei.<\/p>\n<p>Ekzistojn\u00eb standarde p\u00ebr nj\u00eb analiz\u00eb dhe llogaritje t\u00eb till\u00eb, por askush nuk mund t\u00eb thot\u00eb sa t\u00eb sakta jan\u00eb ato n\u00eb harduerin real n\u00eb p\u00ebrdorim. P\u00ebr llogaritjet \u00ebsht\u00eb gjithashtu e r\u00ebnd\u00ebsishme t\u00eb kuptosh \u00e7do mjet dhe ekosistem, por kjo \u00ebsht\u00eb e pamundur.<\/p>\n<h2>\u00c7far\u00eb na pret<\/h2>\n<p>\n<img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/d7843eb5da33c8aa5b444e86b43184d5.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga <noindex><a rel=\"nofollow\" href=\"https:\/\/unsplash.com\/@drew_beamer?utm_source=unsplash&amp;utm_medium=referral&amp;utm_content=creditCopyText\">Drew Beamer n\u00eb Unsplash<\/a><\/noindex><\/i><\/p>\n<p>Kur teknologjit\u00eb zhvillohen, shfaqen gjithnj\u00eb e m\u00eb shum\u00eb cop\u00ebza t\u00eb shk\u00ebputura, dhe pastaj ndodh nj\u00eb kalim fazor, shfaqet nj\u00eb furnizues q\u00eb ka shpenzuar mjaft \"cash\" p\u00ebr t'i bashkuar ato n\u00eb nj\u00eb mjet t\u00eb vet\u00ebm.<\/p>\n<p><b>A nuk ju duket juve se do t\u00eb vij\u00eb nj\u00eb moment kur do t\u00eb shfaqet nj\u00eb mjet si\u00e7 u b\u00eb Ubuntu p\u00ebr bot\u00ebn Linux?<\/b> Mund\u00ebsisht, nj\u00eb mjet i vet\u00ebm p\u00ebr kontejnerizimin dhe orkestrimin do t\u00eb p\u00ebrfshij\u00eb edhe Kubernetes. Me t\u00eb do t\u00eb jet\u00eb e leht\u00eb t\u00eb nd\u00ebrtojm\u00eb cloud on-premise. <\/p>\n<p>Ivan dha p\u00ebrgjigjen: \"Google po nd\u00ebrton tani Anthos - kjo \u00ebsht\u00eb oferta e tyre paket\u00eb, e cila aktivizon cloud-in dhe p\u00ebrfshin Kuber, Service Mesh, monitorimin - t\u00eb gjith\u00eb rrethin q\u00eb nevojitet p\u00ebr mikrosh\u00ebrbimet n\u00eb 'on-premise'. Ne jemi thuajse n\u00eb t\u00eb ardhmen.\"<\/p>\n<p>Denis gjithashtu p\u00ebrmendi Nutanix dhe VMWare me produktin e tyre vRealize Suite, t\u00eb cilat mund t\u00eb p\u00ebrballen me nj\u00eb detyr\u00eb t\u00eb till\u00eb pa kontejnerizim.<\/p>\n<p>Dmitry ndau mendimin se zvog\u00eblimi i \"dhimbjes\" dhe ulja e taks\u00ebs jan\u00eb dy drejtime ku pritet t\u00eb ket\u00eb p\u00ebrmir\u00ebsime. <\/p>\n<p><b>Duke p\u00ebrmbledhur diskutimin, do t\u00eb theksojm\u00eb k\u00ebto probleme t\u00eb infrastruktur\u00ebs moderne<\/b><\/p>\n<ul>\n<li>T\u00eb tre pjes\u00ebmarr\u00ebsit n\u00ebnvizuan problemin me stateful.<\/li>\n<li>Lloje t\u00eb ndryshme problemesh p\u00ebr mb\u00ebshtetje sigurie, duke p\u00ebrfshir\u00eb probabilitetin q\u00eb n\u00eb Docker t\u00eb p\u00ebrfundojn\u00eb disa versione t\u00eb Python, server\u00ebve t\u00eb aplikacioneve dhe komponenteve.<br \/>\nShpenzimi i tepruar, p\u00ebr t\u00eb cilin \u00ebsht\u00eb m\u00eb mir\u00eb t\u00eb b\u00ebhet nj\u00eb mitap i ve\u00e7ant\u00eb.<br \/>\nProblemi i m\u00ebsimdh\u00ebnies, pasi orkestrimi p\u00ebrb\u00ebn nj\u00eb ekosistem t\u00eb komplikuar.<br \/>\nProblemi i p\u00ebrgjithsh\u00ebm i industris\u00eb \u00ebsht\u00eb p\u00ebrdorimi i mjeteve jasht\u00eb q\u00ebllimit t\u00eb tyre.<\/p>\n<p>T\u00eb tjerat p\u00ebrfundime mbeten p\u00ebr ju. Deri tani, ndjehet se lidhja Docker+Kubernetes nuk \u00ebsht\u00eb e leht\u00eb p\u00ebr t'u b\u00ebr\u00eb nj\u00eb pjes\u00eb \"qendrore\" e sistemit. P\u00ebr shembull, sistemet operative jan\u00eb instaluar n\u00eb harduerin e par\u00eb, di\u00e7ka q\u00eb nuk mund t\u00eb thuhet p\u00ebr kontejner\u00ebt dhe orkestrimin. Ndoshta n\u00eb t\u00eb ardhmen do t\u00eb bashkohen sistemet operative dhe kontejner\u00ebt me softuerin p\u00ebr menaxhimin e cloud-it.<\/p>\n<p><img decoding=\"async\" alt=\"Infrastruktura moderne: problemet dhe perspektivat\" src=\"\/wp-content\/uploads\/2020\/06\/4f90f876985af1b515a9d5a471ba3c74.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<i>Foto nga <noindex><a rel=\"nofollow\" href=\"https:\/\/www.pexels.com\/@gabrielsantosfotografia?utm_content=attributionCopyText&amp;utm_medium=referral&amp;utm_source=pexels\">Gabriel Santos Fotografia nga Pexels<\/a><\/noindex><\/i><\/p>\n<p>Duke shfryt\u00ebzuar rastin, dua t\u00eb d\u00ebrgoj p\u00ebrsh\u00ebndetje mamit dhe t\u00eb kujtoj se kemi nj\u00eb grup n\u00eb Facebook <noindex><a rel=\"nofollow\" href=\"https:\/\/www.facebook.com\/groups\/feedme.ru\/\">\u201eMenaxhimi dhe zhvillimi i projekteve t\u00eb m\u00ebdha IT\u201d<\/a><\/noindex>, kanal <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/feedmeto\">@feedmeto<\/a><\/noindex> me publikime interesante nga bloget e ndryshme teknologjike. Dhe kanali im <noindex><a rel=\"nofollow\" href=\"https:\/\/t.me\/rybakalexey\">@rybakalexey<\/a><\/noindex>, ku bisedoj p\u00ebr menaxhimin e zhvillimit n\u00eb kompanit\u00eb produktive.<\/li>\n<\/ul>\n<p>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/508018\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u043a\u043e\u043d\u0446\u0435 \u043c\u0430\u044f \u043c\u044b \u043f\u0440\u043e\u0432\u0435\u043b\u0438 \u043e\u043d\u043b\u0430\u0439\u043d-\u043c\u0438\u0442\u0430\u043f \u043d\u0430 \u0442\u0435\u043c\u0443 \u00ab\u0421\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u0430\u044f \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u0438 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u044b: \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0438 \u043f\u0435\u0440\u0441\u043f\u0435\u043a\u0442\u0438\u0432\u044b\u00bb. \u041f\u043e\u0433\u043e\u0432\u043e\u0440\u0438\u043b\u0438 \u043e \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430\u0445, Kubernetes \u0438 \u043e\u0440\u043a\u0435\u0441\u0442\u0440\u0430\u0446\u0438\u0438 \u0432 \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0435, \u043e \u043a\u0440\u0438\u0442\u0435\u0440\u0438\u044f\u0445 \u0432\u044b\u0431\u043e\u0440\u0430 \u0438\u043d\u0444\u0440\u0430\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0438 \u043c\u043d\u043e\u0433\u043e\u043c \u0434\u0440\u0443\u0433\u043e\u043c. \u0423\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u0438 \u043f\u043e\u0434\u0435\u043b\u0438\u043b\u0438\u0441\u044c \u043a\u0435\u0439\u0441\u0430\u043c\u0438 \u0438\u0437 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0438. \u0423\u0447\u0430\u0441\u0442\u043d\u0438\u043a\u0438: \u0415\u0432\u0433\u0435\u043d\u0438\u0439 \u041f\u043e\u0442\u0430\u043f\u043e\u0432, CEO \u00abITSumma\u00bb. \u0411\u043e\u043b\u044c\u0448\u0435 \u043f\u043e\u043b\u043e\u0432\u0438\u043d\u044b \u0435\u0433\u043e \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 \u043b\u0438\u0431\u043e \u0443\u0436\u0435 \u043f\u0435\u0440\u0435\u0445\u043e\u0434\u044f\u0442, \u043b\u0438\u0431\u043e \u0445\u043e\u0442\u044f\u0442 \u043f\u0435\u0440\u0435\u0439\u0442\u0438 \u043d\u0430 Kubernetes. \u0414\u043c\u0438\u0442\u0440\u0438\u0439 \u0421\u0442\u043e\u043b\u044f\u0440\u043e\u0432, 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