{"id":81593,"date":"2020-05-15T01:42:36","date_gmt":"2020-05-14T23:42:36","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/tonkaya-nastrojka-marshrutizaczii-dlya-metallb-v-rezhime-l2"},"modified":"2020-05-15T01:42:36","modified_gmt":"2020-05-14T23:42:36","slug":"tonkaya-nastrojka-marshrutizaczii-dlya-metallb-v-rezhime-l2","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/tonkaya-nastrojka-marshrutizaczii-dlya-metallb-v-rezhime-l2","title":{"rendered":"Dostosowanie routingu dla MetalLB w trybie L2","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\"Dostosowanie
\nNed\u00e1vno som sa stretol s pomerne netradi\u010dnou \u00falohou nastavenia smerovania pre MetalLB. Ni\u010d by na tom nebolo, preto\u017ee zvy\u010dajne pre MetalLB nie s\u00fa potrebn\u00e9 \u017eiadne \u010fal\u0161ie akcie, ale v na\u0161om pr\u00edpade m\u00e1me dostato\u010dne ve\u013ek\u00fd klaster s pomerne jednoduchou konfigur\u00e1ciou siete.<\/p>\n

<\/p>\n

V tomto \u010dl\u00e1nku sa podel\u00edm o to, ako nastavi\u0165 smerovanie zalo\u017een\u00e9 na zdroji a smerovanie zalo\u017een\u00e9 na politike pre vonkaj\u0161iu sie\u0165 v\u00e1\u0161ho klastru.<\/p>\n

<\/p>\n

Nebudem sa podrobne zaobera\u0165 in\u0161tal\u00e1ciou a nastaven\u00edm MetalLB, preto\u017ee predpoklad\u00e1m, \u017ee u\u017e m\u00e1te ur\u010dit\u00e9 sk\u00fasenosti. Navrhoval by som ihne\u010f prejs\u0165 k veci, to znamen\u00e1 k nastaveniu smerovania. Tak\u017ee m\u00e1me \u0161tyri pr\u00edpady:<\/p>\n

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

Pr\u00edpad 1: Ke\u010f nastavenie nie je potrebn\u00e9<\/h1>\n

<\/p>\n

Rozoberieme jednoduch\u00fd pr\u00edpad.<\/p>\n

<\/p>\n

\"Dostosowanie<\/p>\n

<\/p>\n

Dodato\u010dn\u00e9 nastavenie smerovania nie je potrebn\u00e9, ke\u010f adresy vyd\u00e1van\u00e9 MetalLB s\u00fa v tej istej podsieti ako adresy va\u0161ich uzlov.<\/p>\n

<\/p>\n

Napr\u00edklad m\u00e1te podsie\u0165 192.168.1.0\/24<\/code>, v nej je smerova\u010d 192.168.1.1<\/code>, a va\u0161e uzly z\u00edskavaj\u00fa adresy: 192.168.1.10-30<\/code>, potom pre MetalLB m\u00f4\u017eete nastavi\u0165 rozsah 192.168.1.100-120<\/code> a by\u0165 si ist\u00fd, \u017ee bud\u00fa fungova\u0165 bez ak\u00e9hoko\u013evek \u010fal\u0161ieho nastavenia.<\/p>\n

<\/p>\n

Pre\u010do je to tak? Preto\u017ee va\u0161e uzly u\u017e maj\u00fa nastaven\u00e9 trasy:<\/p>\n

<\/p>\n

# ip route\ndefault via 192.168.1.1 dev eth0 onlink \n192.168.1.0\/24 dev eth0 proto kernel scope link src 192.168.1.10<\/code><\/pre>\n
<\/p>\n
A adresy z toho ist\u00e9ho rozsahu si ich znovu pou\u017eij\u00fa bez ak\u00fdchko\u013evek \u010fal\u0161\u00edch pohybov.<\/p>\n
<\/p>\n
Pr\u00edpad 2: Ke\u010f je potrebn\u00e9 dodato\u010dn\u00e9 nastavenie<\/h1>\n
<\/p>\n
\"Dostosowanie<\/p>\n
<\/p>\n
Mali by ste nastavi\u0165 dodato\u010dn\u00e9 trasy v\u017edy, ke\u010f va\u0161e uzly nemaj\u00fa nastaven\u00fd IP adresy<\/a> alebo trasu do podsiete, pre ktor\u00fa MetalLB vyd\u00e1va adresy.<\/p>\n
<\/p>\n
Vysvetl\u00edm trochu podrobnej\u0161ie. V\u017edy, ke\u010f MetalLB vyd\u00e1 adresu, to sa d\u00e1 porovna\u0165 s jednoduch\u00fdm priraden\u00edm typu:<\/p>\n
<\/p>\n
ip addr add 10.9.8.7\/32 dev lo<\/code><\/pre>\n
<\/p>\n
V\u0161imnite si, \u017ee:<\/p>\n
<\/p>\n