<p>kubeadm์€ docker ๋Ÿฐํƒ€์ž„์„ ์‚ฌ์šฉํ•˜์ง€ ์•Š๋Š” ๊ฒฝ์šฐ bridge-nf-call ๋ฐ ip_forward์— ๋Œ€ํ•ด ๋ถˆํ‰ํ•ฉ๋‹ˆ๋‹ค.</p>

์— ๋งŒ๋“  2018๋…„ 08์›” 16์ผ  ยท  10์ฝ”๋ฉ˜ํŠธ  ยท  ์ถœ์ฒ˜: kubernetes/kubeadm

๋ฒ„๊ทธ ๋ณด๊ณ ์„œ ๋˜๋Š” ๊ธฐ๋Šฅ ์š”์ฒญ์ž…๋‹ˆ๊นŒ? :

/ ์ข…๋ฅ˜์˜ ๋ฒ„๊ทธ

๋ฌด์Šจ ์ผ์ด ์ผ์–ด ๋‚ฌ์Šต๋‹ˆ๊นŒ?

๊นจ๋—ํ•œ ์‹œ์Šคํ…œ์„ ๋ถ€ํŒ… ํ•œ ํ›„ ๊ตฌ์„ฑ๋œ docker ์ด์™ธ์˜ CRI ๋Ÿฐํƒ€์ž„์œผ๋กœ kubeadm init ๋ฅผ ์‹คํ–‰ํ•˜๋ฉด ๋‹ค์Œ ์˜ค๋ฅ˜ ๋ฉ”์‹œ์ง€ ์Œ์ด ์ƒ์„ฑ๋ฉ๋‹ˆ๋‹ค.

[ERROR FileContent--proc-sys-net-bridge-bridge-nf-call-iptables]: /proc/sys/net/bridge/bridge-nf-call-iptables does not exist [ERROR FileContent--proc-sys-net-ipv4-ip_forward]: /proc/sys/net/ipv4/ip_forward contents are not set to 1

์˜ˆ์ƒ ํ•œ ์ผ :

์ด ๋‘ ๊ฐ€์ง€ ๋น„ํ–‰ ์ „ ๊ฒ€์‚ฌ๋Š” ์ž๋™์œผ๋กœ ์ถฉ์กฑ ๋  ์ˆ˜ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ํ†ต๊ณผํ•ด์•ผํ•ฉ๋‹ˆ๋‹ค.

๋ถ„๋ช…ํžˆ ์ด๋“ค์€ ์ผ๋ฐ˜์ ์œผ๋กœ docker ๋ฐ๋ชฌ์ด ์‹œ์ž‘๋˜๋ฉด ์ž๋™์œผ๋กœ ์ฒ˜๋ฆฌ๋˜์ง€๋งŒ openSUSE Kubic์˜ ๊ฒฝ์šฐ ๊ธฐ๋ณธ์ ์œผ๋กœ CRI-O๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ์กฐ์‚ฌํ•˜๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค. .

๋”ฐ๋ผ์„œ์ด ๋ฒ„๊ทธ ๋ณด๊ณ ์„œ๋Š” kubeadm์ด ์ž์ฒด์ ์œผ๋กœ ์ฒ˜๋ฆฌ ํ•  ์ˆ˜์žˆ๋Š” ๊ธฐํšŒ์ž…๋‹ˆ๋‹ค. kubeadm์ด ํ•„์š”ํ•œ ๊ฒƒ์„ ์•Œ๊ณ  ์žˆ๊ธฐ ๋•Œ๋ฌธ์— kubeadm์ด ๋ฌธ์ œ์— ๋Œ€ํ•ด ๋ถˆํ‰ํ•˜์ง€ ์•Š๊ณ  ์ž๋™์œผ๋กœ modprobe br_netfilter ๋ฐ echo '1' > /proc/sys/net/ipv4/ip_forward ํ•ด์•ผํ•˜๋Š” ๊ฒฝ์šฐ๊ฐ€ ์žˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค.

๋˜๋Š”์ด ์ œ์•ˆ์ด ๋ฐ›์•„ ๋“ค์—ฌ์ง€์ง€ ์•Š๋Š” ๊ฒฝ์šฐ, openSUSE Kubic์ด kubeadm์˜ ์ผ๋ฐ˜์ ์ธ ๊ธฐ๋Œ€์— ๋ถ€ํ•ฉํ•˜๋Š” ๋ฐฉ์‹์œผ๋กœ ์ด๋Ÿฌํ•œ ๋ฌธ์ œ๋ฅผ ์ž๋™์œผ๋กœ ํ•ด๊ฒฐํ•˜๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•œ ์ œ์•ˆ์— ๊ฐ์‚ฌ๋“œ๋ฆฝ๋‹ˆ๋‹ค.

์žฌํ˜„ ๋ฐฉ๋ฒ• (๊ฐ€๋Šฅํ•œ ํ•œ ์ตœ์†Œํ•œ์œผ๋กœ ์ •ํ™•ํ•˜๊ฒŒ) :

  • kubeadm ๋ฐ cri-o ์„ค์น˜
  • systemctl ํ™œ์„ฑํ™”-์ง€๊ธˆ crio
  • ์ถ”๊ฐ€ ์ธ์ˆ˜ --container-runtime=remote --container-runtime-endpoint=unix:///var/run/crio/crio.sock --runtime-request-timeout=15m kublet๋ฅผ ์‹คํ–‰ํ•˜๋„๋ก kubeadm ๊ตฌ์„ฑ
  • kubeadm init --cri-socket /var/run/crio/crio.sock

์šฐ๋ฆฌ๊ฐ€ ์•Œ์•„์•ผ ํ•  ๋‹ค๋ฅธ ๊ฒƒ์ด ์žˆ์Šต๋‹ˆ๊นŒ? :

ํ™˜๊ฒฝ :

  • Kubernetes ๋ฒ„์ „ ( kubectl version ) : v1.11.2
  • ํด๋ผ์šฐ๋“œ ๊ณต๊ธ‰์ž ๋˜๋Š” ํ•˜๋“œ์›จ์–ด ๊ตฌ์„ฑ : qemu-kvm x86_64 16GB RAM 2 ์ฝ”์–ด
  • OS (์˜ˆ : / etc / os-release) : opensuse-tumbleweed-kubic
  • ์ปค๋„ (์˜ˆ : uname -a ) : 4.17.13
  • ๋„๊ตฌ ์„ค์น˜ : kubeadm
help wanted kinbug

๊ฐ€์žฅ ์œ ์šฉํ•œ ๋Œ“๊ธ€

Docker๋ฅผ ๋‹ค์‹œ ์‹œ์ž‘ํ•˜๋ฉด ํŠธ๋ฆญ์ด๋˜์—ˆ์Šต๋‹ˆ๋‹ค ... ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค

๋ชจ๋“  10 ๋Œ“๊ธ€

์ œํ’ˆ ๋ฒ„๊ทธ๊ฐ€ ์•„๋‹ˆ๋ผ ๋ฌธ์„œ ๋ฒ„๊ทธ (๋งค๋‰ด์–ผ ๋ˆ„๋ฝ)์ฒ˜๋Ÿผ ๋Š๊ปด์ง‘๋‹ˆ๋‹ค. ํ˜„์žฌ ์šฐ๋ฆฌ๋Š” ์ปจํ…Œ์ด๋„ˆ ๋Ÿฐํƒ€์ž„์œผ๋กœ docker๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ kubeadm์„ ์‚ฌ์šฉํ•˜์—ฌ kubernetes๋ฅผ ์„ค์น˜ํ•˜๋Š” ๋ฐฉ๋ฒ•์— ๋Œ€ํ•œ ํŽ˜์ด์ง€ ๋งŒ ๊ฐ€์ง€๊ณ  ์žˆ์œผ๋ฉฐ, cri-o๋ฅผ์œ„ํ•œ ๋˜ ๋‹ค๋ฅธ ํŽ˜์ด์ง€๊ฐ€ ์žˆ์–ด์•ผํ•ฉ๋‹ˆ๋‹ค.

IMO kubeadm์€ ์ตœ์†Œํ•œ modprobe ์ž์ฒด๋ฅผ ์ˆ˜ํ–‰ํ•ด์•ผํ•ฉ๋‹ˆ๋‹ค. ip_forward ๊ฒฝ์šฐ์—๋„ ์‹œ์Šคํ…œ ๊ตฌ์„ฑ ๋ฐ ๊ด€๋ฆฌ์ž์— ๋”ฐ๋ผ ๋…ผ์Ÿ์˜ ์—ฌ์ง€๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค.

@vrothberg- ๋‹น์‹ ์€ ์–ด๋–ป๊ฒŒ ์ƒ๊ฐํ•˜์„ธ์š”? ์œ„์˜ 2 ๊ฐ€์ง€ ์กฐ๊ฑด (modprobe ๋ฐ sysctl)์ด kubeadm์— ์˜ํ•ด ์ž๋™์œผ๋กœ ์ˆ˜์ •๋˜์–ด์•ผํ•ฉ๋‹ˆ๊นŒ, ์•„๋‹ˆ๋ฉด ์ด๊ฒƒ์ด CRI-O์—์„œ ๋” ์ž˜ ์ฒ˜๋ฆฌ ๋  ๊ฒƒ์ด๋ผ๊ณ  ์ƒ๊ฐํ•˜์‹ญ๋‹ˆ๊นŒ?

Docker๋Š” ๋‘˜ ๋‹ค ์ž๋™์œผ๋กœ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค.

๊ทธ๋ฆฌ๊ณ  ์ ์ ˆํ•œ CRI-O๊ฐ€ ์ฒ˜๋ฆฌ๋˜์ง€ ์•Š์•„์•ผํ•œ๋‹ค๊ณ  ์ƒ๊ฐํ•œ๋‹ค๋ฉด, ์˜คํ”ˆ ์ˆ˜์„ธ์—์„œ ๋”ํ‹ฐ ํ•ต์ด ์–ด๋””๋กœ ์˜ฎ๊ฒจ ์ ธ์•ผํ•œ๋‹ค๊ณ  ์ƒ๊ฐํ•˜์‹ญ๋‹ˆ๊นŒ? cri-o ํŒจํ‚ค์ง€ ๋˜๋Š” kubeadm ํŒจํ‚ค์ง€์— ์žˆ์Šต๋‹ˆ๊นŒ? ;)

๋‚˜๋Š” ๊ทธ๊ฒƒ์ด kubeadm ํŒจํ‚ค์ง€๊ฐ€ํ•ด์•ผ ํ•  ์ผ์ด๋ผ๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๋‹ค. ๊ทธ ํ›„์— ์šฐ๋ฆฌ๋Š”
๊ทธ๊ฒƒ์ด ์ •๋ง๋กœ ์˜ค๋ฅ˜์ธ์ง€ ๋˜๋Š” ์ •๋ณด ๋กœ๊ทธ๋กœ ๊ฐ•๋“ฑ ๋  ์ˆ˜ ์žˆ๋Š”์ง€ ํ™•์ธํ•˜์‹ญ์‹œ์˜ค.
K8์˜ ๋งŽ์€ ๊ฒƒ๋“ค์ด ์—ฌ์ „ํžˆ Docker๊ฐ€ ์ž‘์—…ํ•˜๋Š” ๋ฐฉ์‹์„ ์ค‘์‹ฌ์œผ๋กœ ๊ตฌ์ถ•๋˜์—ˆ์ง€๋งŒ
ํ•ญ์ƒ ํ•„์š”ํ•œ ๊ฒƒ์€ ์•„๋‹™๋‹ˆ๋‹ค.

๋‚˜๋Š” ์ง€๊ธˆ ํœด๊ฐ€ ์ค‘์ด์ง€๋งŒ ์—ฌ๊ธฐ์—์„œ ๋ฉ”์ผ์„ ํ™•์ธํ•ฉ๋‹ˆ๋‹ค. ๊ฐ์‚ฌ
ํ•‘์„ ์œ„ํ•ด.

2018 ๋…„ 9 ์›” 12 ์ผ ์ˆ˜์š”์ผ 10:30์— Richard Brown [email protected]
์ผ๋‹ค :

@vrothberg https://github.com/vrothberg- ์–ด๋–ป๊ฒŒ ์ƒ๊ฐํ•˜์„ธ์š”? ํ•ด์•ผ
2 ๊ฐœ ์ด์ƒ์˜ ์กฐ๊ฑด โ€‹โ€‹(modprobe ๋ฐ sysctl)์€ ๋‹ค์Œ์„ ํ†ตํ•ด ์ž๋™์œผ๋กœ ์ˆ˜์ •๋ฉ๋‹ˆ๋‹ค.
kubeadm, ์•„๋‹ˆ๋ฉด ์ด๊ฒƒ์ด CRI-O์—์„œ ๋” ์ž˜ ์ฒ˜๋ฆฌ๋˜์—ˆ๋‹ค๊ณ  ์ƒ๊ฐํ•ฉ๋‹ˆ๊นŒ?

Docker๋Š” ๋‘˜ ๋‹ค ์ž๋™์œผ๋กœ ์ˆ˜ํ–‰ํ•ฉ๋‹ˆ๋‹ค.

์ ์ ˆํ•œ CRI-O๊ฐ€ ์ฒ˜๋ฆฌ๋˜์ง€ ์•Š์•„์•ผํ•œ๋‹ค๊ณ  ์ƒ๊ฐํ•œ๋‹ค๋ฉด
๋”ํ‹ฐ ํ•ดํ‚น์€ ์˜คํ”ˆ ์ˆ˜์„ธ์— ํฌํ•จ๋˜์–ด์•ผํ•ฉ๋‹ˆ๊นŒ? cri-o ํŒจํ‚ค์ง€ ๋˜๋Š”
kubeadm ํŒจํ‚ค์ง€? ;)

โ€”
๋‹น์‹ ์ด ์–ธ๊ธ‰ ๋˜์—ˆ๊ธฐ ๋•Œ๋ฌธ์— ์ด๊ฒƒ์„ ๋ฐ›๊ณ  ์žˆ์Šต๋‹ˆ๋‹ค.
์ด ์ด๋ฉ”์ผ์— ์ง์ ‘ ๋‹ต์žฅํ•˜๊ณ  GitHub์—์„œ ํ™•์ธํ•˜์„ธ์š”.
https://github.com/kubernetes/kubeadm/issues/1062#issuecomment-420559942 ,
๋˜๋Š” ์Šค๋ ˆ๋“œ ์Œ์†Œ๊ฑฐ
https://github.com/notifications/unsubscribe-auth/ALI4g1dRKf5vWXz_7H27VktuD8nP5tAsks5uaMYogaJpZM4V_W70
.

์ด ๋ฌธ์ œ๋Š” ๋‹ค์Œ ๋ณ€๊ฒฝ ์‚ฌํ•ญ๊ณผ ํ•จ๊ป˜ openSUSE์—์„œ ์ฒ˜๋ฆฌ๋ฉ๋‹ˆ๋‹ค. https://build.opensuse.org/package/rdiff/devel : kubic / kubernetes? linkrev = base & rev = 9

์—…์ŠคํŠธ๋ฆผ rpm ํŒจํ‚ค์ง•์— ์œ ์‚ฌํ•œ ๊ฒƒ์„ ์ฆ‰์‹œ ์ œ์ถœํ•  ๊ณ„ํš์ž…๋‹ˆ๋‹ค.

Docker๋ฅผ ๋‹ค์‹œ ์‹œ์ž‘ํ•˜๋ฉด ํŠธ๋ฆญ์ด๋˜์—ˆ์Šต๋‹ˆ๋‹ค ... ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค

๋‘ ๋ฒˆ์งธ๋กœ์ด ์ •๋ณด๋ฅผ ์„ค์ • ํŽ˜์ด์ง€์— ์ถ”๊ฐ€ํ•ฉ๋‹ˆ๋‹ค. ์ด ์˜ค๋ฅ˜๋ฅผ๋ณด๊ณ  ์žˆ์—ˆ๋Š”๋ฐ์ด ์Šค๋ ˆ๋“œ๋ฅผ ๋ฐœ๊ฒฌ ํ•  ๋•Œ๊นŒ์ง€ ์ตœ์†Œํ•œ 20 ๋ถ„ ๋™์•ˆ ๊ณ ํ†ต์„ ๊ฒช์—ˆ์Šต๋‹ˆ๋‹ค. ์†”๋ฃจ์…˜์„ ๊ณต์œ ํ•ด ์ฃผ์…”์„œ ๊ฐ์‚ฌํ•ฉ๋‹ˆ๋‹ค.

์ ˆ์ฐจ๋ฅผ ๋”ฐ๋ฅด์‹ญ์‹œ์˜ค. ๊ทธ๋Ÿฌ๋ฉด ์˜ค๋ฅ˜๊ฐ€ ๋ฐœ์ƒํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.
https://kubernetes.io/docs/setup/production-environment/container-runtimes/#cri -o

๋‹จ์ˆœํžˆ modprobe'ng ์‚ฌ๋ฌผ์ด ์‹คํ–‰๋˜๊ณ  ์žˆ๋Š”์ง€ ํ™•์ธํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ์žฌ๋ถ€ํŒ…ํ•˜๋ฉด ๋ชจ๋“  ๊ฒƒ์ด ์ค‘๋‹จ๋ฉ๋‹ˆ๋‹ค. ์ด๋Ÿฌํ•œ ๊ฒƒ๋“ค์ด ์ง€์†์ ์œผ๋กœ ํ™œ์„ฑํ™”๋˜์–ด ์žˆ๋Š”์ง€ ํ™•์ธํ•ด์•ผํ•ฉ๋‹ˆ๋‹ค. sysctl ๊ทœ์น™์—๋Š” ์ ์šฉ๋˜์ง€๋งŒ ๋ชจ๋“ˆ์—๋Š” ์ ์šฉ๋˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค.

์ด๋Ÿฐ ์ผ์— ๋Œ€ํ•œ ์ง€์‹œ๋ฅผ ๋”ฐ๋ฅผ ๋•Œ ๋‚˜๋Š” ์ผ์„ ์ฝ๊ณ  ์ง๊ฐ์— ๋”ฐ๋ผ ์ถ”๊ฐ€ ์กฐ์น˜๋ฅผ ์ทจํ•˜๋Š” ๊ฒƒ์„ ์ข‹์•„ํ•˜์ง€ ์•Š์Šต๋‹ˆ๋‹ค. ๋ญ”๊ฐ€๋ฅผํ•˜๋ผ๊ณ ํ•˜๋ฉด ๋‚˜๋Š” ๊ทธ๊ฒƒ์„ํ•œ๋‹ค. ๊ทธ๋ ‡์ง€ ์•Š๋‹ค๋ฉด ๋‚˜๋Š”ํ•˜์ง€ ์•Š๋Š”๋‹ค. ๋‚˜๋Š” ์ผ์ด ๊นจ์งˆ ๋•Œ๊นŒ์ง€ ๊ธฐ๋‹ค๋ ธ๋‹ค๊ฐ€ ๋Œ์•„๊ฐ€์„œ ๊ณ ์ณ์ค๋‹ˆ๋‹ค. ์ด๋Ÿฐ ์‹์œผ๋กœ ์ผ์ด ๊นจ์งˆ ๋•Œ ๋‚ด๊ฐ€ ํ•œ ์ž„์˜์˜ ์ผ ๋Œ€์‹  ๋ฌธ์ œ์ธ ์ž˜๋ชป๋œ ๋ฌธ์„œ์ธ์ง€ ๋” ์ž˜ ์•Œ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.

๋กœ์ปฌ Hyper-V ๋…ธ๋“œ ์ด๋ฏธ์ง€๋ฅผ ๋‹ค์‹œ ๋นŒ๋“œํ•ด์•ผ ํ•  ๊ฒƒ์ž…๋‹ˆ๋‹ค.

์ด ํŽ˜์ด์ง€๊ฐ€ ๋„์›€์ด ๋˜์—ˆ๋‚˜์š”?
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