{"id":97403,"date":"2020-10-18T02:42:36","date_gmt":"2020-10-18T00:42:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/turing-pi-klasternaya-plata-dlya-self-hosted-prilozhenij-i-servisov"},"modified":"2020-10-18T02:42:36","modified_gmt":"2020-10-18T00:42:36","slug":"turing-pi-klasternaya-plata-dlya-self-hosted-prilozhenij-i-servisov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/administrirovanie\/turing-pi-klasternaya-plata-dlya-self-hosted-prilozhenij-i-servisov","title":{"rendered":"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/bc4c263764df2bbbbbbfc0136c0dd59e.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nTuring Pi \u00e8 una soluzione per applicazioni self-hosted basata sul principio dei rack nei data center, ma su una scheda madre compatta. La soluzione \u00e8 progettata per costruire un'infrastruttura locale per lo sviluppo locale e l'hosting di applicazioni e servizi. In pratica, \u00e8 come AWS EC2, ma per l'edge.<\/p>\n<p>Siamo un piccolo team di sviluppatori che ha deciso di creare una soluzione per la costruzione di cluster bare-metal nell'edge e abbiamo chiamato il progetto Turing Pi. Il prodotto \u00e8 nato in modo informale, ma ora \u00e8 stato richiesto da team di sviluppo di Red Hat, Rancher (SUSE), Toyota Connected, Sony, Electrolux, Facebook, e sta raccogliendo un pubblico di sviluppatori vicino ai 10K. <\/p>\n<p>Ma tutto \u00e8 iniziato con una scoperta.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h2>Scoperta del prodotto<\/h2>\n<p>\nUna volta ho fatto la scoperta che non inventiamo nulla. Tutte le cose esistenti in questo mondo, le scopriamo. Scopriamo che alcune parti possono essere combinate insieme, ottenendo nuove propriet\u00e0 dei prodotti, o scopriamo leggi e poi le combiniamo di nuovo. Non si pu\u00f2 inventare nulla, ma si possono scoprire nuove cose durante la ricerca. A mio parere, l'invenzione \u00e8 il risultato di osservazioni costanti, esperimenti e ricerca + combinazione di conoscenze.<\/p>\n<p>Negli ultimi dieci anni ho osservato l'emergere del movimento amatoriale homelab (risorsa <noindex><a rel=\"nofollow\" href=\"https:\/\/www.reddit.com\/r\/homelab\/\">subreddit<\/a><\/noindex>), self-hosted (risorse <noindex><a rel=\"nofollow\" href=\"https:\/\/www.reddit.com\/r\/selfhosted\/\">subreddit<\/a><\/noindex> e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/awesome-selfhosted\/awesome-selfhosted\">awesome-selfhosted<\/a><\/noindex>), i computer a scheda singola, come cresce l'interesse nel far girare contenitori su computer a scheda singola come il Raspberry Pi, e cresce il movimento che costruisce cluster di computer a scheda singola. Gradualmente, l'idea di Kubernetes sta entrando nel settore. \u00c8 gi\u00e0 stata rilasciata una sua versione leggera, k3s, orientata all'Edge\/IOT. Una grande rete di fast food, Chick-fil-A, \u00e8 tra le prime al mondo a ospitare cluster Kubernetes nelle loro cucine. <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/@cfatechblog\/bare-metal-k8s-clustering-at-chick-fil-a-scale-7b0607bd3541\">kubectl make me a sandwich<\/a><\/noindex>. <\/p>\n<p>Vedo questo come una palla di neve, dove una tecnologia avvolge l'altra, creando un sistema pi\u00f9 complesso. Non si tratta di caos, ma piuttosto di un frattale di tecnologie. In uno dei momenti abbastanza complessi della mia vita, ho visto il valore nei cluster assemblati da computer a scheda singola da sviluppatori appassionati e ho iniziato a lavorare per creare una scheda per cluster.<\/p>\n<p>Oggi la nostra scheda per cluster \u00e8 molto semplice e si rivolge principalmente a chi ama le tecnologie cloud native, esplorando il nuovo e sperimentando.<\/p>\n<h2>Moduli Costruttivi (Building Blocks)<\/h2>\n<p>\nDunque, cos'\u00e8 la soluzione, qual \u00e8 il punto. Il punto \u00e8 fornire un costruttore, moduli costruttivi (Building Blocks) che consentano di assemblare un'infrastruttura edge a un costo inferiore rispetto ai server tradizionali, mobile senza ingombranti scatole metalliche, poco esigente in termini di condizioni di utilizzo come quelle da server, energeticamente efficiente, standardizzata a livello di moduli e con la possibilit\u00e0 di scalare rapidamente su decine o centinaia di nodi di calcolo (processori).<\/p>\n<p><b>Scheda per Cluster (Clusterboard)<\/b><\/p>\n<p>La scheda Mini ITX integra pi\u00f9 moduli di calcolo tramite una rete sulla scheda, fornendo interfacce periferiche e controllo sui moduli.<\/p>\n<p><b>Modulo di Calcolo (Compute Module)<\/b><\/p>\n<p>Scheda in fattore di forma SO-DIMM contenente un processore e memoria RAM, opzionalmente memoria flash per memorizzare il sistema operativo.<\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/ad80c3afaba78dbacc244fa15380aee2.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\nUna delle configurazioni progettate per la versione Turing V2.<\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/5f25cfcfa9fbc8c018f0e51712573b6b.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Combinando una scheda a cluster e moduli di calcolo, \u00e8 facile creare un'infrastruttura, ad esempio, con oltre 20 processori (esempi sotto), silenziosa e a basso consumo energetico. La scheda a cluster stessa aumenta l'efficienza del volume utilizzato. Esempi di cluster per confronto.<\/p>\n<p>basata su SBC*<br \/>\n<img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/50f7e9d16a11f08da2f5e9fdeadb5951.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n24 CPU<br \/>\nAutore: Afkham Azeez<\/p>\n<p>basata su Turing Pi<br \/>\n<img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/284bd9dc610ce50b27b865d207e9754d.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n21 CPU<br \/>\nAutore <noindex><a rel=\"nofollow\" href=\"https:\/\/twitter.com\/th3st0rmtr00p3r\">th3st0rmtr00p3r<\/a><\/noindex><\/p>\n<p>* SBC \u2014 Computer su Scheda Singola<\/p>\n<p>Il cofondatore di Rancher Labs e autore di k3s non \u00e8 rimasto indifferente a questo approccio.<\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/12083ea724d492322ecb2d0e8c10dad6.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nDi seguito, maggiori dettagli sui blocchi di costruzione.<\/p>\n<h2>Modulo di Calcolo (Compute Module)<\/h2>\n<p>\nPer verificare la nostra idea, abbiamo scelto il Raspberry Pi Compute Module, una configurazione ideale per iniziare. La community RPi \u00e8 attiva, non ci sono problemi di software, e il modulo \u00e8 in formato SO-DIMM (6 x 3 cm), accessibile nel prezzo, con un CPU a 4 core, 1 GB di RAM e, opzionalmente, memoria flash da 8, 16 o 32 GB per il sistema operativo e altri bisogni di sistema. Questo tipo di fattore di forma \u00e8 spesso utilizzato nelle soluzioni IoT industriali.<\/p>\n<p><b>Raspberry Pi 1\/3\/3+ Compute Module<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/58657512c719e19fbb88f6773fdac8c5.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nMa il modello CM3 ha anche limitazioni significative: max. 1 GB di RAM e Ethernet tramite USB HUB con una velocit\u00e0 massima fino a 100 Mbps. Pertanto, la seconda versione di Turing supporter\u00e0 il Raspberry Pi 4 con fino a 8 GB di RAM sul modulo. Qui sotto \u00e8 un esempio di moduli Nvidia Jetson per compiti di calcolo accelerato. \u00c8 possibile che ci sar\u00e0 supporto per questi nella seconda versione, se risolveremo alcune sfide tecniche, permettendo cos\u00ec di mixare i moduli.<\/p>\n<p><b>Moduli Compute Nvidia Jetson<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/4b61d9ffc55a3a66f2b91960a5ac13fb.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nNei moduli si nasconde la possibilit\u00e0 pi\u00f9 importante, che a prima vista non \u00e8 evidente. La capacit\u00e0 di creare altri moduli in un formato simile con diverse combinazioni di CPU, RAM ed eMMC, per vari tipi di carichi di lavoro, dal computing generale ai calcoli intensivi per il machine learning. Questo \u00e8 molto simile alle istanze AWS EC2, ma solo per l'edge. Inoltre, la scheda cluster rimane invariata o con minime modifiche.<\/p>\n<h2>Scheda per Cluster (Clusterboard)<\/h2>\n<p>\nPu\u00f2 anche essere chiamata scheda madre o scheda di base, un settore relativamente nuovo e i produttori di tali soluzioni sono ancora pochi e per lo pi\u00f9 agli inizi, tra cui Pine64, MiniNodes, Clover Pi, Bitscope Blade, PicoCluster (cluster SBC). La scheda cluster connette i moduli tramite rete, fornisce alimentazione e offre un bus di gestione del cluster (Cluster Management Bus); almeno abbiamo deciso di aggiungere questo bus e sembra che abbia avuto successo.<\/p>\n<p>Front<br \/>\n<img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/8f0ed7bd0124480a140862f1615cea3f.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Indietro<br \/>\n<img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/f7df01e8cb6e84bf244eee249dd60ada.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Larghezza di banda del Backplane 12 Gbps<br \/>\nSlot SD per moduli senza eMMC, ad esempio, \u00e8 possibile mantenere un paio di moduli SD per un rapido accesso ai dati della node.<\/p>\n<p>\u0412 \u043e\u0441\u043d\u043e\u0432\u0435 \u043a\u043b\u0430\u0441\u0442\u0435\u0440\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u044b \u043b\u0435\u0436\u0438\u0442 \u043c\u0438\u043a\u0440\u043e\u0441\u0445\u0435\u043c\u0430 switch \u0434\u043b\u044f \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f \u0441\u0435\u0442\u0435\u0432\u043e\u0433\u043e \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u044f \u043c\u043e\u0434\u0443\u043b\u0435\u0439 \u0438 \u0432\u044b\u0445\u043e\u0434\u0430 \u0432\u043e \u0432\u043d\u0435\u0448\u043d\u044e\u044e \u0441\u0435\u0442\u044c. \u0412 \u0442\u0435\u043a\u0443\u0449\u0435\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u043c\u044b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c unmanaged switch \u0442.\u043a. \u043d\u0435 \u0431\u044b\u043b\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0442\u044c \u043f\u043e\u043b\u043d\u043e\u0446\u0435\u043d\u043d\u044b\u0439 R&#038;D, \u043d\u043e \u043a\u043e \u0432\u0442\u043e\u0440\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0438 \u043c\u044b \u0432\u044b\u0431\u0440\u0430\u043b\u0438 \u043d\u0435\u043f\u043b\u043e\u0445\u043e\u0439 managed switch. \u0412\u043e\u0437\u043c\u043e\u0436\u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0433\u0443\u0440\u0430\u0446\u0438\u044f \u0432 \u0440\u0435\u0436\u0438\u043c\u0435 \u2018\u043c\u0430\u0441\u0442\u0435\u0440 \u043d\u043e\u0434\u0430 \u043a\u0430\u043a \u0440\u043e\u0443\u0442\u0435\u0440\u2019 \u0434\u043b\u044f \u0440\u0430\u0437\u0434\u0430\u0447\u0438 \u0441\u0435\u0442\u0438 \u043d\u0430 \u043f\u043b\u0430\u0442\u0443, \u044d\u0442\u043e \u0435\u0441\u043b\u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442\u0441\u044f \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u0438 \u0432\u043e\u0440\u043a\u0435\u0440\u043e\u0432 \u043e\u0442 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0438\u0437\u0432\u043d\u0435, \u0432 \u0442\u0430\u043a\u043e\u043c \u0441\u043b\u0443\u0447\u0430\u0435 \u043d\u0430 \u043c\u0430\u0441\u0442\u0435\u0440 \u043d\u043e\u0434\u0435 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e \u0442\u0430\u043a\u0436\u0435 \u0434\u0435\u0440\u0436\u0430\u0442\u044c DHCP \u0441\u0435\u0440\u0432\u0435\u0440.<\/p>\n<h2>Applicazione<\/h2>\n<p>\nL'attuale versione \u00e8 sperimentale e la posizioniamo come una soluzione entry-level per esplorare che cosa siano i cluster, lavorare con il software o come test di ipotesi nelle organizzazioni, ricerca di nuove idee, insomma una versione Lite.<\/p>\n<p>Per iniziare, consigliamo una serie del fantastico Jeff Geerling, che ha letto di noi su Y Combinator; \u00e8 l'autore del bestseller Ansible for DevOps. \u00c8 stato cos\u00ec ispirato che ha realizzato una serie di 6 episodi a partire dall'idea della clustering in generale fino a esempi pratici di lavoro con la scheda, studiando Kubernetes e quale software si pu\u00f2 installare.<\/p>\n<p><b>Serie sull'installazione di k3s su cluster<\/b><br \/>\n<center><div class=\"youtube-placeholder\" data-id=\"N4bfNefjBSw\" onclick=\"loadVideo(this)\">\r\n        <img decoding=\"async\" src=\"https:\/\/img.youtube.com\/vi\/N4bfNefjBSw\/hqdefault.jpg\" alt=\"Riproduci video\" loading=\"lazy\" width=\"480\" height=\"360\" style=\"width:100%;height:auto;\">\r\n        <div class=\"play-button\"><\/div>\r\n    <\/div><\/center><\/p>\n<p>In realt\u00e0, consiglio di iniziare dalla prima, l\u00ec si parla in modo accessibile di clustering e Kubernetes, con alcune immagini dalla community.<\/p>\n<p><img decoding=\"async\" alt=\"Turing Pi \u2014 scheda cluster per applicazioni e servizi self-hosted\" src=\"\/wp-content\/uploads\/2020\/10\/a580216fd1282feb9a9ebc4103efacab.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<h2>E ora?<\/h2>\n<p>\nInnanzitutto, spero davvero che sia stato interessante. Questo \u00e8 un contenuto totalmente originale, un tentativo di guardare oltre l'orizzonte. In secondo luogo, ho intenzione di scrivere una seconda parte sulla progettazione di Turing V2. Parler\u00f2 di come \u00e8 avvenuta la ricerca del prodotto, delle considerazioni logiche e dei principali attributi che sono importanti. L'articolo conterr\u00e0 schizzi del prodotto dalle versioni pi\u00f9 iniziali a quelle finali. La seconda parte sar\u00e0 particolarmente interessante per i product manager, responsabili dei prodotti e del loro sviluppo nelle aziende.<\/p>\n<p>E probabilmente sar\u00e0 davvero un long read.<br \/>\n<br \/>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/523798\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>Turing Pi \u044d\u0442\u043e \u0440\u0435\u0448\u0435\u043d\u0438\u0435 \u0434\u043b\u044f self-hosted \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u0439 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u043d\u043e\u0435 \u043f\u043e \u043f\u0440\u0438\u043d\u0446\u0438\u043f\u0443 rack \u0441\u0442\u043e\u0435\u043a \u0432 \u0434\u0430\u0442\u0430 \u0446\u0435\u043d\u0442\u0440\u0435, \u0442\u043e\u043b\u044c\u043a\u043e \u043d\u0430 \u043a\u043e\u043c\u043f\u0430\u043a\u0442\u043d\u043e\u0439 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