{"id":37750,"date":"2019-10-31T22:19:31","date_gmt":"2019-10-31T19:19:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/distri-distributiv-dlya-obkatki-tehnologij-bystrogo-upravleniya-paketami\/"},"modified":"2019-10-31T22:19:31","modified_gmt":"2019-10-31T19:19:31","slug":"distri-distributiv-dlya-obkatki-tehnologij-bystrogo-upravleniya-paketami","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/news\/distri-distributiv-dlya-obkatki-tehnologij-bystrogo-upravleniya-paketami","title":{"rendered":"Distri \u2014 un dstributivo per la sperimentazione di tecnologie di gestione rapida dei pacchetti","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Michael Stapelberg, autore del gestore di finestre mosaico i3wm e in passato sviluppatore attivo di Debian (ha mantenuto circa 170 pacchetti), <noindex><a rel=\"nofollow\" href=\"https:\/\/michael.stapelberg.ch\/posts\/2019-08-17-introducing-distri\/\">sviluppa<\/a><\/noindex>  un dstributivo sperimentale <noindex><a rel=\"nofollow\" href=\"https:\/\/distr1.org\/\">distri<\/a><\/noindex> e un gestore di pacchetti omonimo. Il progetto \u00e8 posizionato come un'indagine sulle possibili strade per aumentare le prestazioni dei sistemi di gestione dei pacchetti e incarna alcune nuove idee nella costruzione di dstributivi. Il codice del gestore di pacchetti \u00e8 scritto in Go e <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/distr1\/distri\/\">\u00e8 distribuito<\/a><\/noindex> sotto licenza BSD.<\/p>\n<p>La caratteristica principale del formato dei pacchetti proposto nella distribuzione \u00e8 la fornitura del pacchetto sotto forma di immagini SquashFS, invece di archivi tar compressi. L'uso di SquashFS, analogamente ai formati AppImage e Snap, consente di 'montare' il pacchetto senza la necessit\u00e0 di estrazione, risparmiando spazio su disco, consentendo modifiche atomiche e rendendo il contenuto del pacchetto immediatamente accessibile. I pacchetti distri, come nel classico formato 'deb', contengono solo singoli componenti collegati come dipendenze ad altri pacchetti (le librerie non sono duplicate nei pacchetti, ma installate come dipendenze). In altre parole, distri cerca di combinare la struttura di pacchetti granulari delle distribuzioni classiche come Debian con i metodi di distribuzione delle applicazioni sotto forma di contenitori montabili.<\/p>\n<p>Ogni pacchetto in distri viene montato nella propria directory in modalit\u00e0 di sola lettura (ad esempio, il pacchetto con zsh \u00e8 accessibile come '\/ro\/zsh-amd64-5.6.2-3'), il che influisce positivamente sulla sicurezza e protegge da modifiche accidentalmente o malevoli. Per formare la gerarchia delle directory di sistema, come \/usr\/bin, \/usr\/share e \/usr\/lib, viene utilizzato un modulo FUSE speciale che unisce il contenuto di tutte le immagini SquashFS installate in un'unica entit\u00e0 (ad esempio, la directory \/ro\/share fornisce accesso alle sottodirectory share di tutti i pacchetti). <\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/repo.distr1.org\/distri\/jackherer\/docs\/package-format.html\">Pacchetti<\/a><\/noindex> in distri fondamentalmente <noindex><a rel=\"nofollow\" href=\"https:\/\/michael.stapelberg.ch\/posts\/2019-07-20-hooks-and-triggers\/\">privati<\/a><\/noindex> I gestori chiamati nel processo di installazione (assenza di hook e trigger) possono coesistere diverse versioni del pacchetto, rendendo possibile l\u2019installazione parallela dei pacchetti. La struttura proposta limita le prestazioni del gestore di pacchetti solo alla larghezza di banda della rete attraverso cui vengono scaricati i pacchetti. L\u2019installazione o l\u2019aggiornamento diretto di un pacchetto avviene in modo atomico e non richiede la duplicazione dei contenuti. <\/p>\n<p>I conflitti durante l\u2019installazione dei pacchetti sono esclusi poich\u00e9 ogni pacchetto \u00e8 legato alla propria directory e nel sistema \u00e8 consentita la presenza di diverse versioni di uno stesso pacchetto (il contenuto della directory con una revisione pi\u00f9 recente viene collegato ai cataloghi consolidati). La costruzione dei pacchetti avviene anche molto rapidamente e non richiede l\u2019installazione di pacchetti in un ambiente di build separato (in quest'ultimo si creano rappresentazioni delle dipendenze necessarie dalla directory \/ro).<\/p>\n<p><noindex><a rel=\"nofollow\" href=\"https:\/\/repo.distr1.org\/distri\/jackherer\/docs\/rosetta-stone.html\">Supportati<\/a><\/noindex> Comandi standard per la gestione dei pacchetti, come 'distri install' e 'distri update', mentre per i comandi informativi si pu\u00f2 utilizzare la consueta utilit\u00e0 'ls' (ad esempio, per visualizzare i pacchetti installati \u00e8 sufficiente stampare l'elenco delle directory nella gerarchia '\/ro', e per sapere a quale pacchetto appartiene un file, visionare dove porta il collegamento di quel file).<\/p>\n<p>Il prototipo del sistema operativo proposto per esperimenti include circa <noindex><a rel=\"nofollow\" href=\"https:\/\/repo.distr1.org\/distri\/jackherer\/pkg\/\">1700 pacchetti<\/a><\/noindex> e immagini di installazione pronte <noindex><a rel=\"nofollow\" href=\"https:\/\/repo.distr1.org\/distri\/jackherer\/img\/\">con un installer, adatte sia per l\u2019installazione come sistema operativo principale che per l\u2019avvio in QEMU, Docker, Google Cloud e VirtualBox. \u00c8 supportato il caricamento da una partizione di disco crittografata e una collezione di applicazioni standard per creare un desktop basato sul gestore di finestre i3 (si propone Google Chrome come browser).<\/a><\/noindex> \u00c8 fornito <noindex><a rel=\"nofollow\" href=\"https:\/\/repo.distr1.org\/distri\/jackherer\/docs\/building.html\">un set completo di strumenti per la costruzione del sistema operativo, preparazione e creazione di pacchetti, distribuzione di pacchetti sui mirror e altro ancora.<\/a><\/noindex>  Go 1.13<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Fonte: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51407\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041c\u0430\u0439\u043a\u043b \u0428\u0442\u0430\u043f\u0435\u043b\u044c\u0431\u0435\u0440\u0433 (Michael Stapelberg), \u0430\u0432\u0442\u043e\u0440 \u043c\u043e\u0437\u0430\u0438\u0447\u043d\u043e\u0433\u043e \u043e\u043a\u043e\u043d\u043d\u043e\u0433\u043e \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 i3wm \u0438 \u0432 \u043f\u0440\u043e\u0448\u043b\u043e\u043c \u0430\u043a\u0442\u0438\u0432\u043d\u044b\u0439 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a Debian (\u0441\u043e\u043f\u0440\u043e\u0432\u043e\u0436\u0434\u0430\u043b \u043e\u043a\u043e\u043b\u043e 170 \u043f\u0430\u043a\u0435\u0442\u043e\u0432), \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442 \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0439 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432 distri \u0438 \u043e\u0434\u043d\u043e\u0438\u043c\u0451\u043d\u043d\u044b\u0439 \u043f\u0430\u043a\u0435\u0442\u043d\u044b\u0439 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440. \u041f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e\u0437\u0438\u0446\u0438\u043e\u043d\u0438\u0440\u0443\u0435\u0442\u0441\u044f \u043a\u0430\u043a \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0435 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0445 \u043f\u0443\u0442\u0435\u0439 \u0443\u0432\u0435\u043b\u0438\u0447\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0441\u0438\u0441\u0442\u0435\u043c \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0430\u043a\u0435\u0442\u0430\u043c\u0438 \u0438 \u0432\u043e\u043f\u043b\u043e\u0449\u0430\u0435\u0442 \u043d\u0435\u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043d\u043e\u0432\u044b\u0435 \u0438\u0434\u0435\u0438 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u043e\u0432. \u041a\u043e\u0434 \u043f\u0430\u043a\u0435\u0442\u043d\u043e\u0433\u043e \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-37750","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com 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