- Ukufakwa nokwenza ngcono i-Docker kanye ne-Docker Compose kumabhodi e-SBC.
- Ukucushwa kwenethiwekhi okuthuthukisiwe kusetshenziswa izindawo ezishisayo kanye nokuphathwa kwe-DNS/DHCP.
- Ukusebenzisa ukuhlelwa kweziqukathi kusetshenziswa i-Docker Swarm.
- Ukuphathwa kweqoqo elihlanganisiwe ngokusebenzisa isikhombimsebenzisi se-Portainer.
Wake wacabanga ukuba nesikhungo sakho sedatha esincane ngaphandle kokuchitha imali eningi kwihadiwe yobungcweti? Ukusetha i-cluster nge-Raspberry Pi kanye ne-Docker kuyindlela ejabulisa kakhulu futhi eshibhile yokungena ezweni lokuhlelwa kweziqukathi kanye nokubalwa kwekhompyutha okusatshalaliswayo, okulungele ukuzama ekhaya ngamaphrojekthi avame ukudinga amaseva abizayo kakhulu.
Ubuhle balokhu kusethwa ukuthi ungasebenzisa amabhodi amancane njenge-Raspberry Pi noma amanye ama-SBC njenge-Orange Pi noma i-Banana Pi ukudala indawo lapho izinhlelo zokusebenza zabelana khona ngomthwalo womsebenzi. Kuyiphrojekthi. ilungele ukufunda mayelana nokutholakala okuphezulu kanye nokukhula ngaphandle kokwesaba ukwephula noma yini ebalulekile, njengoba konke kwenzeka kunethiwekhi yakho yendawo.
Ukulungisa inhlabathi kanye nehadiwe
Ukuze uqale kahle, kungcono ukusebenzisa izinhlobo zesistimu yokusebenza ezilula, njenge I-Raspbian Lite noma i-Armbian (uma kukhulunywa nge-Orange Pi), njengoba singadingi isikhombikubona sezithombe futhi sifuna ukunikezela yonke i-megabyte ye-RAM ekucutshungulweni. Icebo eliwusizo kakhulu ukukhanyisa izithombe usebenzisa i-Etcher ukuze ugweme ukubhala amaphutha kumakhadi e-microSD.
Uma ungafuni ukuba nenkinga ngama-USB monitors namakhibhodi ebhodi ngalinye le-motherboard, ungasebenzisa i-adaptha. I-USB kuya ku-Serial ixhunywe kumaphini e-RX kanye ne-TX. Ilungiselela ifayela config.txt ekwakhiweni kwe-boot okungeziwe enable_uart=1Ungaphatha yonke into nge-serial console usebenzisa izinhlelo ezifana ne-PuTTY ku-Windows noma i-Minicom ku-Linux, okuyi- ngokunethezeka ngokwengeziwe kunokuba ushintshe izintambo ze-HDMI.
Ukuthuthukiswa kwesistimu nenethiwekhi
Ngaphambi kokufaka i-Docker, kuyalulekwa ukuthi ulungise uhlelo lwakho. Kubalulekile ukubuyekeza konke nge sudo apt update y sudo apt upgrade -yUkuze wonge izinsiza, ungakhawulela imemori enikelwe kuvidiyo kufayela lokucushwa ngokusetha gpu_mem=16ngakho-ke sivumele iningi le-RAM Isetshenziselwa izitsha.
Ngokuphathelene nenethiwekhi, uma ufuna i-Raspberry Pi yakho isebenze njenge-node eyinhloko futhi iphathe ezinye, ungathatha indawo yomphathi. dhcpcd por InethiwekhiManagerokuyinto eqinile kakhulu. Ukuze udale inethiwekhi yakho yeqembu, ungafaka dnsmasq ukuphatha i-DHCP ne-DNS, kanye hostapd ukuguqula i-Pi ibe yi- Indawo yokungena ye-WiFi (indawo eshisayo) lapho amanye ama-node exhuma khona.
Ukufaka i-Docker kanye ne-Docker Compose
Ukufaka i-Docker ku-Raspberry Pi 4 kuyinto elula ngoba inokusekelwa okusemthethweni. Indlela esheshayo ukusebenzisa iskripthi sokufaka okuzenzakalelayo usebenzisa umyalo. curl okulanda futhi kulungise yonke injini ye-Docker. Ukuze ugweme ukubhala sudo kumyalo ngamunye, kuyanconywa engeza umsebenzisi eqenjini le-Docker, yize kufanele uqaphele ngokuphepha ngoba lokhu kunikeza amalungelo aphezulu.
Uma injini isifakiwe, kubalulekile ukwengeza I-Docker Ukubhalaokusivumela ukuthi sichaze izinhlelo zokusebenza ezinamakhonteyina amaningi sisebenzisa ifayela le-YAML. Lingafakwa kalula nge pip, umphathi wephakheji ye-Python. Ukuqinisekisa ukuthi konke kusebenza kahle, mane uqalise isithombe se- hello-world futhi uqinisekise ukuthi isitsha sisebenza kahle.
Ukuhlanganiswa kwe-orchestra ne-Docker Swarm
Uma usunayo i-Docker kuwo wonke amabhodi akho, sekuyisikhathi sokuwahlanganisa abe yinye Iqembu le-Docker SwarmI-Swarm iyithuluzi lendabuko likaDocker lokuguqula iqembu lama-node libe umthombo owodwa obonakalayo. Udinga nje ukuqala imodi ye-Swarm ku-node eyinhloko bese ujoyina ama-node esisebenzi usebenzisa ithokheni yokuphepha enikeziwe.
Ukuze uphathe konke lokhu kuthunyelwa ngokubonakalayo futhi ngaphandle kokuhlanya nge-terminal, kunconywa kakhulu Faka i-Portainer ukuze uphathe izitsha zakho ze-DockerLeli thuluzi linikeza isikhombikubona sewebhu lapho singabuka khona isimo sezinsizakalo, ama-node asebenzayo, futhi siphathe izitsha ngokuchofoza okumbalwa nje, okwenza ukuphathwa kweqoqo kube lula. enembile kakhulu.
Amaqhinga athuthukisiwe nokuxhumana
Uma uzithola usendaweni enemikhawulo noma amabhlogo enethiwekhi, ungakha umhubhe. I-OpenVPN ku-node eyinhloko. Lokhu kuvumela yonke ithrafikhi yamaqoqo ukuthi iye ku-inthanethi nge-VPN, idlule amaphroksi noma ama-firewall. Ukuze uphathe ithrafikhi phakathi kwamanethiwekhi e-Swarm kanye nenethiwekhi yakho yendawo, amathuluzi anjenge Umlilo Zisiza ekudaleni imithetho ye-iptables ngendlela enomusa nelula.
Enye imininingwane ebalulekile isikhathi sesistimu. Njengoba i-Raspberry Pis ingenayo iwashi lesikhathi sangempela (i-RTC), ilahlekelwa usuku lapho ivuliwe. Okungcono kakhulu, i- imodyuli ye-RTC ebonakalayo (njenge-DS3231) noma ulungiselele iseva ye-NTP kunethiwekhi yendawo ukuze wonke ama-node avumelane, okubalulekile ukuze amalogi nezitifiketi zokuphepha zisebenze kahle.
Ukusetha uhlelo lwe-ecosystem yalolu hlobo kukuvumela ukuthi uguqule amabhodi ambalwa alula abe ithuluzi lokufunda elinamandla lapho ungathumela khona konke kusukela kumaseva ewebhu kuya ezinhlelweni zekhompyutha ezisatshalaliswa, ukuhlanganisa ukuphathwa kwenethiwekhi, ukuphepha kwemigudu, kanye nokuhlelwa kweziqukathi endaweni eyodwa elawulwayo.
