{"id":103763,"date":"2022-04-12T03:37:17","date_gmt":"2022-04-12T01:37:17","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-sistemy-upravleniya-kontejnerami-lxd-5-0"},"modified":"2022-04-12T03:37:17","modified_gmt":"2022-04-12T01:37:17","slug":"vypusk-sistemy-upravleniya-kontejnerami-lxd-5-0","status":"publish","type":"post","link":"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-sistemy-upravleniya-kontejnerami-lxd-5-0","title":{"rendered":"Lansarea sistemului de gestionare a containerelor LXD 5.0","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Compania Canonical a publicat versiunea 5.0 a managerului de containere LXD \u0219i a sistemului de fi\u0219iere virtual LXCFS 5.0. Codul LXD este scris \u00een limbajul Go \u0219i este distribuit sub licen\u021ba Apache 2.0. Ramura 5.0 este clasat\u0103 ca o versiune cu suport pe termen lung \u2014 actualiz\u0103rile vor fi disponibile p\u00e2n\u0103 \u00een iunie 2027.       <\/p>\n<p>Pentru rularea containerelor se utilizeaz\u0103 instrumentele LXC, care includ biblioteca liblxc, un set de utilitare (lxc-create, lxc-start, lxc-stop, lxc-ls etc.), \u0219abloane pentru crearea containerelor \u0219i un set de leg\u0103turi pentru diferite limbaje de programare. Izolarea se realizeaz\u0103 prin mecanismele standard ale kernel-ului Linux. Izolarea proceselor, stivei de re\u021bea ipc, uts, identificatorilor de utilizatori \u0219i punctelor de montare se face prin mecanismul spa\u021biilor de nume (namespaces). Resursele sunt limitate prin cgroups. Pentru reducerea privilegiilor \u0219i limitarea accesului sunt utilizate func\u021bionalit\u0103\u021bi ale kernel-ului precum profilele Apparmor \u0219i SELinux, politicile Seccomp, Chroots (pivot_root) \u0219i capabilities.    <\/p>\n<p>Pe l\u00e2ng\u0103 LXC, \u00een LXD se aplic\u0103 \u0219i componente din proiectele CRIU \u0219i QEMU. Dac\u0103 LXC este un instrument de nivel sc\u0103zut pentru manipularea la nivel de containere individuale, LXD ofer\u0103 mijloace pentru gestionarea centralizat\u0103 a containerelor desf\u0103\u0219urate \u00eentr-un cluster format din mai multe. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/server\/\"   title=\"servere\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"1640\">servere<\/a>LXD este implementat ca un proces de fundal care prime\u0219te cereri prin re\u021bea prin intermediul REST API \u0219i suport\u0103 diverse back-end-uri de stocare (copaci de directoare, ZFS, Btrfs, LVM), instantanee de st\u0103ri, migrarea live a containerelor func\u021bionale de pe o ma\u0219in\u0103 pe alta \u0219i mijloace pentru stocarea imaginilor containerelor. LXCFS este utilizat pentru simularea \u00een containere a pseudo-sistemelor de fi\u0219iere \/proc \u0219i \/sys, precum \u0219i a reprezent\u0103rilor virtualizate cgroupfs pentru a conferi containerelor aspectul unor sisteme independente obi\u0219nuite.      <\/p>\n<p>\u00cembun\u0103t\u0103\u021biri cheie:  <\/p>\n<ul>\n<li class=\"l\"> Posibilitatea de conectare \u0219i deconectare la cald a discurilor \u0219i a dispozitivelor USB. \u00cen ma\u0219ina virtual\u0103, un nou disc este recunoscut prin apari\u021bia unui nou dispozitiv pe magistrala SCSI, iar dispozitivul USB \u2014 prin generarea unui eveniment USB hotplug.\n<li class=\"l\"> A fost introdus\u0103 posibilitatea de a lansa LXD chiar \u0219i \u00een condi\u021biile imposibilit\u0103\u021bii de a stabili o conexiune de re\u021bea, de exemplu, din cauza lipsei unui dispozitiv de re\u021bea necesar. \u00cen loc s\u0103 emit\u0103 o eroare la lansarea LXD, acum se lanseaz\u0103 num\u0103rul maxim de medii posibil \u00een condi\u021biile actuale, iar celelalte medii sunt lansate dup\u0103 ce conexiunea de re\u021bea este stabilit\u0103.\n<li class=\"l\"> A fost ad\u0103ugat\u0103 o nou\u0103 rol\u0103 pentru membrii clusterului \u2014 ovn-chassis, destinat\u0103 clusterelor care utilizeaz\u0103 OVN (Open Virtual Network) pentru interac\u021biunea de re\u021bea (prin atribuirea rolului ovn-chassis, se pot identifica serverele pentru a \u00eendeplini func\u021biile de routere OVN).\n<li class=\"l\"> A fost propus un mod optimizat de actualizare a con\u021binutului sec\u021biunilor de stocare. \u00cen versiunile anterioare, actualizarea consta \u00een copierea ini\u021bial\u0103 a exemplarei containerului sau a sec\u021biunii, de exemplu, prin utilizarea func\u021bionalit\u0103\u021bii send\/receive \u00een zfs sau btrfs, dup\u0103 care copia creat\u0103 era sincronizat\u0103 prin lansarea programului rsync. Pentru a \u00eembun\u0103t\u0103\u021bi eficien\u021ba actualiz\u0103rii <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/ro\/vps\/\"   title=\"ma\u0219ini virtuale\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2093\">ma\u0219ini virtuale<\/a> \u00een noua versiune a fost implementat\u0103 o logic\u0103 avansat\u0103 de migrare, \u00een care, dac\u0103 serverul surs\u0103 \u0219i serverul \u021bint\u0103 utilizeaz\u0103 acela\u0219i pool de stocare, \u00een loc de rsync se aplic\u0103 automat instantanee \u0219i opera\u021bii de send\/receive.\n<li class=\"l\"> A fost revizuit\u0103 logica de identificare a medii \u00een cloud-init: \u00een loc de numele medii, ca instance-id este folosit acum UUID.\n<li class=\"l\"> A fost ad\u0103ugat suport pentru interceptarea apelului de sistem sched_setscheduler, care permite containerelor f\u0103r\u0103 privilegii s\u0103 modifice priorit\u0103\u021bile proceselor.\n<li class=\"l\"> A fost implementat\u0103 op\u021biunea lvm.thinpool_metadata_size, care gestioneaz\u0103 dimensiunea metadatelor din thinpool.\n<li class=\"l\"> A fost revizuit formatul fi\u0219ierului cu informa\u021bii de re\u021bea pentru lxc. A fost ad\u0103ugat suport pentru datele despre leg\u0103turile interfe\u021belor, pun\u021bi de re\u021bea, VLAN \u0219i re\u021bea OVN.\n<li class=\"l\"> Au fost ridicate cerin\u021bele minime pentru versiunile componentelor: kernel Linux 5.4, Go 1.18, LXC 4.0.x \u0219i QEMU 6.0.\n<li class=\"l\"> \u00cen LXCFS 5 a fost ad\u0103ugat suport pentru ierarhia unificat\u0103 cgroup (cgroup2), au fost implementate \/proc\/slabinfo \u0219i \/sys\/devices\/system\/cpu, iar pentru asamblare a fost folosit unelte meson.      <\/ul>\n<p>Sursa: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=57006\">opennet.ro<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 LXD 5.0 \u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u0424\u0421 LXCFS 5.0. \u041a\u043e\u0434 LXD \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 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u0412\u0435\u0442\u043a\u0430 5.0 \u043e\u0442\u043d\u0435\u0441\u0435\u043d\u0430 \u043a \u0432\u044b\u043f\u0443\u0441\u043a\u0430\u043c \u0441 \u0434\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 &#8212; \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u0431\u0443\u0434\u0443\u0442 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043e \u0438\u044e\u043d\u044f 2027 \u0433\u043e\u0434\u0430. \u0412 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 runtime \u0434\u043b\u044f \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u043a\u0430\u043a \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u0439 LXC, \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0433\u043e \u0432\u0445\u043e\u0434\u0438\u0442 [&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-103763","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 LXD 5.0 \u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u0424\u0421 LXCFS 5.0. \u041a\u043e\u0434 LXD \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 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-sistemy-upravleniya-kontejnerami-lxd-5-0\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.2.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"ro_RO\" \/>\n\t\t<meta property=\"og:site_name\" content=\"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u0412\u044b\u043f\u0443\u0441\u043a \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430\u043c\u0438 LXD 5.0 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u043b\u0438\u0437 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440\u0430 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043e\u0432 LXD 5.0 \u0438 \u0432\u0438\u0440\u0442\u0443\u0430\u043b\u044c\u043d\u043e\u0439 \u0424\u0421 LXCFS 5.0. \u041a\u043e\u0434 LXD \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 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/ro\/blog\/news\/vypusk-sistemy-upravleniya-kontejnerami-lxd-5-0\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2022-04-12T01:37:17+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2022-04-12T01:37:17+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Lansarea sistemului de management al containerelor LXD 5.0 | ProHoster","description":"Compania Canonical a publicat versiunea managerului de containere LXD 5.0 \u0219i a sistemului de fi\u0219iere virtual LXCFS 5.0. 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