{"id":103729,"date":"2022-04-07T09:37:33","date_gmt":"2022-04-07T07:37:33","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/vypusk-sistemy-iniczializaczii-gnu-shepherd-0-9"},"modified":"2022-04-07T09:37:33","modified_gmt":"2022-04-07T07:37:33","slug":"vypusk-sistemy-iniczializaczii-gnu-shepherd-0-9","status":"publish","type":"post","link":"https:\/\/prohoster.info\/pt\/blog\/news\/vypusk-sistemy-iniczializaczii-gnu-shepherd-0-9","title":{"rendered":"Lan\u00e7amento do sistema de inicializa\u00e7\u00e3o GNU Shepherd 0.9","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Ap\u00f3s dois anos desde a forma\u00e7\u00e3o do \u00faltimo lan\u00e7amento significativo, foi publicado o gerenciador de servi\u00e7os GNU Shepherd 0.9 (anteriormente dmd), que est\u00e1 sendo desenvolvido pelos desenvolvedores da distribui\u00e7\u00e3o GNU Guix System como uma alternativa ao sistema de inicializa\u00e7\u00e3o SysV-init, que suporta depend\u00eancias. O daemon gerenciador e as utilidades do Shepherd s\u00e3o escritos na linguagem Guile (uma das implementa\u00e7\u00f5es da linguagem Scheme), que tamb\u00e9m \u00e9 utilizada para definir configura\u00e7\u00f5es e par\u00e2metros de inicializa\u00e7\u00e3o dos servi\u00e7os. O Shepherd j\u00e1 est\u00e1 sendo aplicado na distribui\u00e7\u00e3o GuixSD GNU\/Linux e tamb\u00e9m est\u00e1 destinado a ser utilizado no GNU\/Hurd, mas pode funcionar em qualquer sistema operacional compat\u00edvel com POSIX para o qual a linguagem Guile esteja dispon\u00edvel.      <\/p>\n<p>O Shepherd realiza o trabalho de iniciar e parar servi\u00e7os, levando em considera\u00e7\u00e3o as inter-rela\u00e7\u00f5es entre os servi\u00e7os, definindo e iniciando dinamicamente servi\u00e7os dos quais um servi\u00e7o selecionado depende. O Shepherd tamb\u00e9m suporta a defini\u00e7\u00e3o de conflitos entre servi\u00e7os e evita sua execu\u00e7\u00e3o simult\u00e2nea. O projeto pode ser utilizado tanto como o sistema de inicializa\u00e7\u00e3o principal (init com PID 1) quanto de forma isolada para gerenciar processos em segundo plano de usu\u00e1rios individuais (por exemplo, para iniciar tor, privoxy, mcron, etc.) com execu\u00e7\u00e3o sob os direitos desses usu\u00e1rios.     <\/p>\n<p>Principais novidades:  <\/p>\n<ul>\n<li class=\"l\"> Foi implementada a concep\u00e7\u00e3o de servi\u00e7os tempor\u00e1rios (transientes), que s\u00e3o automaticamente desativados ap\u00f3s a conclus\u00e3o devido \u00e0 finaliza\u00e7\u00e3o do processo ou \u00e0 chamada do m\u00e9todo &#171;stop&#187;, o que pode ser necess\u00e1rio para servi\u00e7os sintetizados que n\u00e3o podem ser reiniciados ap\u00f3s a conclus\u00e3o.\n<li class=\"l\"> Para a cria\u00e7\u00e3o de servi\u00e7os semelhantes ao inetd, foi adicionada a procedimento &#171;make-inetd-constructor&#187;.\n<li class=\"l\"> Para a cria\u00e7\u00e3o de servi\u00e7os ativados por atividade de rede (estilo systemd socket activation), foi adicionada a procedimento &#171;make-systemd-constructor&#187;.\n<li class=\"l\"> Adicionada a procedimento para iniciar o servi\u00e7o em segundo plano &#8212; &#171;start-in-the-background&#187;.\n<li class=\"l\"> Na procedimento &#171;make-forkexec-constructor&#187;, foram adicionados os par\u00e2metros &#171;:supplementary-groups&#187;, &#171;#:create-session&#187; e &#171;#:resource-limits&#187;.\n<li class=\"l\"> Foi garantido funcionamento sem bloqueio durante a espera por arquivos PID.\n<li class=\"l\"> Para servi\u00e7os sem o par\u00e2metro &#171;#:log-file&#187;, \u00e9 garantida a sa\u00edda para o syslog, e para servi\u00e7os com o par\u00e2metro &#171;#:log-file&#187; &#8212; o registro em log \u00e9 salvo em um arquivo separado com a indica\u00e7\u00e3o dos hor\u00e1rios das entradas. Os logs do processo n\u00e3o privilegiado shepherd s\u00e3o salvos no diret\u00f3rio $XDG_DATA_DIR.\n<li class=\"l\"> O suporte para a constru\u00e7\u00e3o com Guile 2.0 foi encerrado. Problemas foram resolvidos ao usar vers\u00f5es Guile 3.0.5-3.0.7.\n<li class=\"l\"> Agora, \u00e9 necess\u00e1ria a biblioteca Fibers 1.1.0 ou uma vers\u00e3o mais recente para funcionar.    <\/ul>\n<p>Fonte: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=56980\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043f\u0443\u0441\u0442\u044f \u0434\u0432\u0430 \u0433\u043e\u0434\u0430 \u0441 \u043c\u043e\u043c\u0435\u043d\u0442\u0430 \u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u0440\u043e\u0448\u043b\u043e\u0433\u043e \u0437\u043d\u0430\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u0441\u0435\u0440\u0432\u0438\u0441\u043d\u044b\u0439 \u043c\u0435\u043d\u0435\u0434\u0436\u0435\u0440 GNU Shepherd 0.9 (\u0431\u044b\u0432\u0448\u0438\u0439 dmd), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0440\u0430\u0437\u0432\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u0447\u0438\u043a\u0430\u043c\u0438 \u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432\u0430 GNU Guix System \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u0430\u043b\u044c\u0442\u0435\u0440\u043d\u0430\u0442\u0438\u0432\u044b \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 SysV-init, \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u044e\u0449\u0435\u0439 \u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0441\u0442\u0438. \u0423\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0439 \u0434\u0435\u043c\u043e\u043d \u0438 \u0443\u0442\u0438\u043b\u0438\u0442\u044b Shepherd \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u044b \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Guile (\u043e\u0434\u043d\u0430 \u0438\u0437 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0439 \u044f\u0437\u044b\u043a\u0430 Scheme), \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0442\u0430\u043a\u0436\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442\u0441\u044f \u0434\u043b\u044f \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u0438\u044f \u043d\u0430\u0441\u0442\u0440\u043e\u0435\u043a \u0438 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432 \u0437\u0430\u043f\u0443\u0441\u043a\u0430 [&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-103729","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com 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