{"id":91701,"date":"2020-08-17T07:42:05","date_gmt":"2020-08-17T05:42:05","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/kak-sluchajno-napisat-web-gui-dlya-haproxy"},"modified":"2020-08-17T07:42:05","modified_gmt":"2020-08-17T05:42:05","slug":"kak-sluchajno-napisat-web-gui-dlya-haproxy","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/kak-sluchajno-napisat-web-gui-dlya-haproxy","title":{"rendered":"Ako n\u00e1hodou nap\u00edsa\u0165 Web-GUI pre Haproxy","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

S\u00fa\u010dasn\u00fd svet syst\u00e9mov\u00fdch administr\u00e1torov n\u00e1s obvykle ob\u0165a\u017euje kr\u00e1snymi webov\u00fdmi rozhran\u00edm, \u017ee sa n\u00e1m ani nechce in\u0161talova\u0165 softv\u00e9r, ktor\u00fd nem\u00e1 \u201egui\u201c (c\u00edtim, \u017ee teraz sa na m\u0148a vrhn\u00fa kritici), ale predsa, pre\u010do by som mal neust\u00e1le sk\u00e1ka\u0165 do pr\u00edkazov\u00e9ho riadku? V\u0161etko by bolo v poriadku, keby som softv\u00e9r nain\u0161taloval, nastavil a zabudol na\u0148, ale \u010do robi\u0165, ke\u010f je nutn\u00e9 sa do\u0148 st\u00e1le vraca\u0165, upravova\u0165 ho a samozrejme, nie je k dispoz\u00edcii log v\u0161etk\u00fdch akci\u00ed? Nem\u00f4\u017eem st\u00e1le p\u00edsa\u0165 cp cfg cfg_back, \u010dasom sa v tom zamot\u00e1m a jednoducho na to zabudnem.<\/p>\n

\"Ako<\/a><\/noindex>
\n<\/a><\/noindex>
\nPred mnoh\u00fdmi rokmi som sa stretol s tak\u00fdm \u00fa\u017easn\u00fdm vyva\u017eova\u010dom, ako je Haproxy. V\u0161etko je skvel\u00e9 a kr\u00e1sne. Mal som ich ve\u013ea a za\u010dal som h\u013eada\u0165 GUI k nemu, ale prekvapivo \u017eiadne neexistovalo. Ve\u013emi popul\u00e1rny softv\u00e9r, navy\u0161e dos\u0165 star\u00fd, nu\u017e, nevad\u00ed, pomyslel som si a pokra\u010doval som ob\u010dasne upravova\u0165 ru\u010dne v mojom ob\u013e\u00fabenom vi a mal som otvoren\u00fdch ve\u013ea z\u00e1lo\u017eiek so \u0161tatistikami v\u0161etk\u00fdch akt\u00edvnych \u201econnections\u201c. serverov<\/a>. Ale nastal \u010das a musel som uspokoji\u0165 \u201echcenia\u201c \u013eud\u00ed, ktor\u00ed p\u00edsali softv\u00e9r na pr\u00e1cu cez http, a tu sa za\u010dalo nie\u010do zauj\u00edmav\u00e9... <\/p>\n

Ruky sa mi roztriasli, o\u010di sa mi roz\u017eiarili a ja som sa pustil do pr\u00e1ce. Presnej\u0161ie, za\u010dal som uva\u017eova\u0165 o tom, na \u010dom p\u00edsa\u0165, spom\u00ednal som na d\u00e1vno zabudnut\u00fd PHP, ale nejako sa mi to nechcelo, a navy\u0161e sa zdalo, \u017ee to na t\u00fato \u00falohu nie je \u00faplne vhodn\u00e9. Nakoniec som sa rozhodol pre Python, v bud\u00facnosti sa ur\u010dite z\u00edde, pomyslel som si a za\u010dalo sa moje vstreb\u00e1vanie inform\u00e1ci\u00ed.<\/p>\n

Na za\u010diatku \u00falohy neboli a\u017e tak zlo\u017eit\u00e9: schopnos\u0165 editova\u0165 konfigur\u00e1cie z webov\u00e9ho rozhrania z jedn\u00e9ho vstupn\u00e9ho bodu, ukladanie predch\u00e1dzaj\u00facich verzi\u00ed konfigur\u00e1ci\u00ed. Tento, nie ve\u013emi rozsiahly funk\u010dn\u00fd roz\u0161\u00edrenie sa podarilo realizova\u0165 celkom r\u00fdchlo, ale vn\u00fatri vo mne sa vzb\u00farila bu\u010f administr\u00e1torsk\u00e1 lenivos\u0165, alebo prekliaty perfekcionizmus a zdalo sa mi, \u017ee je to samozrejme m\u00e1lo. A ke\u010f sa za\u010dali objavova\u0165 funkcie ako: porovnanie dvoch konfigur\u00e1ci\u00ed, logovanie v\u0161etk\u00fdch akci\u00ed s\u00favisiacich s konfigur\u00e1ciami, Runtime API a prid\u00e1vanie sekci\u00ed cez web.<\/p>\n

\"Ako<\/a><\/noindex><\/p>\n

A ako slu\u0161n\u00fd UNIX administr\u00e1tor \u017eij\u00faci na z\u00e1klade vo\u013en\u00e9ho softv\u00e9ru som sa rozhodol podeli\u0165 s svetom, \u010di sa niekomu to hod\u00ed? Ale na to som musel v\u0161etko urobi\u0165 tak, aby som nemusel zalieza\u0165 do k\u00f3du, ale maxim\u00e1lne do konfigura\u010dn\u00fdch aplik\u00e1ci\u00ed (teraz v\u00e4\u010d\u0161ina nastaven\u00ed pre\u0161la do datab\u00e1zy. Pod\u013ea m\u0148a sa ich stalo pohodlnej\u0161ie upravova\u0165 a pri aktualiz\u00e1cii nebud\u00fa chyby kv\u00f4li ch\u00fdbaj\u00facemu parametru v konfigur\u00e1cii). <\/p>\n

Po mesiaci som svoju pr\u00e1cu zverejnil na GitHube, bez toho, aby som o\u010dak\u00e1val nie\u010do zvl\u00e1\u0161tne. A zbyto\u010dne, softv\u00e9r sa uk\u00e1zal by\u0165 trochu \u017eiadan\u00fd a potom to naozaj za\u010dalo by\u0165 zauj\u00edmav\u00e9\u2026 Akt\u00edvne \u201edopl\u0148ovanie\u201c trv\u00e1 u\u017e takmer rok. Niekedy m\u00e1m chu\u0165 to v\u0161etko vzda\u0165, preto\u017ee moje potreby s\u00fa u\u017e d\u00e1vno splnen\u00e9. No pre\u010do by som potreboval mo\u017enos\u0165 nasadi\u0165 \u201eklaster\u201c s keepalived a HAProxy prostredn\u00edctvom webov\u00e9ho rozhrania, ak mi to zaberie maxim\u00e1lne p\u00e1r min\u00fat? A zjavne to \u013eu\u010fom treba, a ma to aj zauj\u00edma, a je s \u010d\u00edm pracova\u0165. Hoci samozrejme existuj\u00fa aj funkcie, ktor\u00e9 s\u00fa pre m\u0148a u\u017eito\u010dn\u00e9, napr\u00edklad monitoring backend serverov, dostupn\u00fdch pre HAProxy. Samozrejme m\u00e1me firemn\u00fd monitoring, ale s\u00fa tam \u013eudia, ktor\u00ed m\u00f4\u017eu dos\u0165 dlho reagova\u0165, a ke\u010f\u017ee m\u00f4j t\u00edm sa zaober\u00e1 v\u00fdvojom a softv\u00e9r sa objavuje a zmizne, je dos\u0165 \u0165a\u017ek\u00e9 prech\u00e1dza\u0165 cez byrokraciu.<\/p>\n

\"Ako<\/a><\/noindex><\/p>\n

Celkovo som sa rozhodol podeli\u0165, preto\u017ee sa ukazuje, \u017ee je to jedin\u00fd bezplatn\u00fd GUI. A \u010do ak to niekomu pr\u00edde vhod? Odkaz na GitHub<\/a><\/noindex>.
\n
Zdroj: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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