{"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\/no\/blog\/administrirovanie\/kak-sluchajno-napisat-web-gui-dlya-haproxy","title":{"rendered":"Hvordan man tilfeldigvis skriver et Web-GUI for Haproxy","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Den moderne verden av systemadministratorer har gjort oss late med vakre web-grensesnitt, s\u00e5 mye at man knapt har lyst til \u00e5 installere programvare som ikke har dette \u00abgui\u00bb (jeg f\u00f8ler at det n\u00e5 vil komme kritikk fra de troende tekstbehandlerne), men man skal jo ikke stadig m\u00e5tte g\u00e5 inn via kommandolinjen, ikke sant? Alt hadde v\u00e6rt greit hvis man kunne installere, konfigurere og glemme det, men hva gj\u00f8r man n\u00e5r man m\u00e5 inn der hele tiden for \u00e5 redigere, og selvf\u00f8lgelig finnes det ingen logg over alle handlinger, man kan jo ikke skrive cp cfg cfg_back hver gang, med tiden vil man bli forvirret og gi opp dette.<\/p>\n

\"Hvordan<\/a><\/noindex>
\n<\/a><\/noindex>
\nFor mange \u00e5r siden kom jeg i kontakt med en s\u00e5 fantastisk balanseprogramvare som Haproxy. Alt var str\u00e5lende og vakkert. Jeg fikk mange av dem og tenkte p\u00e5 \u00e5 finne et GUI til dem, men overraskende nok fantes det ikke. En veldig popul\u00e6r programvare, som ogs\u00e5 er ganske gammel, men jeg tenkte at det var greit og fortsatte \u00e5 redigere manuelt i min kj\u00e6re vi og ha en mengde \u00e5pne faner med statistikk over alle aktive. servere<\/a>. Men tiden kom da jeg m\u00e5tte tilfredsstille \u00ab\u00f8nskene\u00bb til folk som skrev programvare for \u00e5 jobbe via http, og her begynte det interessante... <\/p>\n

Hendene begynte \u00e5 kl\u00f8, \u00f8ynene lyste, og jeg satte i gang. N\u00e6rmere bestemt begynte jeg \u00e5 tenke p\u00e5 hva jeg skulle skrive med, jeg husket den lenge glemte PHP, men jeg hadde ikke lyst, og det virket ikke helt passende for dette. Til slutt falt valget p\u00e5 Python, noe jeg tenkte ville komme godt med i fremtiden, og jeg begynte \u00e5 absorbere informasjon.<\/p>\n

I starten var oppgavene ikke s\u00e5 vanskelige: muligheten til \u00e5 redigere konfigurasjoner fra et webgrensesnitt fra ett inngangspunkt, lagre tidligere versjoner av konfigurasjonene. Denne, ikke s\u00e5 store funksjonaliteten, ble ganske raskt implementert, men s\u00e5 dukket det opp en slags administrativ latskap eller det s\u00e5kalte perfeksjonismen i meg, og jeg f\u00f8lte at dette selvsagt var for lite. Og s\u00e5 begynte det \u00e5 dukke opp funksjoner som: sammenligning av to konfigurasjoner, logging av alle handlinger relatert til konfigurasjoner, Runtime API og legge til seksjoner via web.<\/p>\n

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

Som en anstendig UNIX-administrator som lever av fri programvare, bestemte jeg meg for \u00e5 dele dette med verden, kanskje noen kan ha nytte av det? Men for \u00e5 f\u00e5 dette til m\u00e5tte alt gj\u00f8res p\u00e5 en m\u00e5te som gjorde at man ikke m\u00e5tte grave i koden, bare maks i konfigurasjonen (N\u00e5 har de fleste innstillingene flyttet til databasen. Etter min mening er det blitt lettere \u00e5 redigere dem, og ved oppdateringer vil det ikke oppst\u00e5 feil p\u00e5 grunn av manglende parametere i konfigurasjonen). <\/p>\n

En m\u00e5ned senere la jeg ut kreative greier p\u00e5 GitHub uten \u00e5 forvente noe spesielt. Men det var dumt, programvaren viste seg \u00e5 v\u00e6re litt ettertraktet, og her begynte det mest interessante... Aktiv utvikling har p\u00e5g\u00e5tt i nesten et \u00e5r. Noen ganger har jeg lyst til \u00e5 gi opp, da mine behov har v\u00e6rt dekket p\u00e5 lenge. Men hvorfor trenger jeg muligheten til \u00e5 sette opp et \u00abklynge\u00bb med keepalived og HAProxy gjennom et nettgrensesnitt, n\u00e5r jeg kan gj\u00f8re det p\u00e5 et par minutter? Men det viser seg at folk trenger det, og jeg er ogs\u00e5 interessert, og har noe \u00e5 gj\u00f8re. Selvf\u00f8lgelig finnes det ogs\u00e5 funksjoner jeg trenger, som overv\u00e5king av backend-servere, om de er tilgjengelige for HAProxy. Vi har selvf\u00f8lgelig bedriftsmonitorering, men der sitter det folk som kan ta tid til \u00e5 reagere, pluss at min avdeling driver utvikling, og programvaren kommer og g\u00e5r, s\u00e5 det er vanskelig \u00e5 komme seg gjennom byr\u00e5kratiet.<\/p>\n

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

S\u00e5 jeg bestemte meg for \u00e5 dele det, for det viser seg at dette er den eneste gratis GUI-en. Hva om noen kan ha nytte av det? Lenke til GitHub<\/a><\/noindex>.
\n
Kilde: habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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