인프런 커뮤니티 질문&답변

안녕하세요. 강사님. 설치 중 오류가 있어 문의드립니다.

vagrant up 명령 실행 시 중간에 나던 오류는 yum -> dnf 로 변경하여 오류 없이 [7] 까지는 통과했는데요.

아래 [8] 번 부터 오류가 발생합니다.

확인 가능하시면 확인을 좀 부탁 드립니다.

k8s-master: ======== [8] kubeadm으로 클러스터 생성 ========

k8s-master: ======== [8-1] 클러스터 초기화 (Pod Network 세팅) ========

k8s-master: W0313 17:20:12.760941 26182 version.go:104] could not fetch a Kubernetes version from the internet: unable to get URL "https://dl.k8s.io/release/stable-1.txt": Get "https://dl.k8s.io/release/stable-1.txt": tls: failed to verify certificate: x509: certificate signed by unknown authority

k8s-master: W0313 17:20:12.760978 26182 version.go:105] falling back to the local client version: v1.27.2

k8s-master: [init] Using Kubernetes version: v1.27.2

k8s-master: [preflight] Running pre-flight checks

k8s-master: [preflight] Pulling images required for setting up a Kubernetes cluster

k8s-master: [preflight] This might take a minute or two, depending on the speed of your internet connection

k8s-master: [preflight] You can also perform this action in beforehand using 'kubeadm config images pull'

k8s-master: W0313 17:20:12.881425 26182 images.go:80] could not find officially supported version of etcd for Kubernetes v1.27.2, falling back to the nearest etcd version (3.5.7-0)

k8s-master: W0313 17:20:13.861338 26182 checks.go:835] detected that the sandbox image "registry.k8s.io/pause:3.6" of the container runtime is inconsistent with that used by kubeadm. It is recommended that using "registry.k8s.io/pause:3.9" as the CRI sandbox image.

k8s-master: error execution phase preflight: [preflight] Some fatal errors occurred:

k8s-master: [ERROR ImagePull]: failed to pull image registry.k8s.io/kube-apiserver:v1.27.2: output: E0313 17:20:13.105343 26238 remote_image.go:167] "PullImage from image service failed" err="rpc error: code = Unknown desc = failed to pull and unpack image \"registry.k8s.io/kube-apiserver:v1.27.2\": failed to resolve reference \"registry.k8s.io/kube-apiserver:v1.27.2\": failed to do request: Head \"https://registry.k8s.io/v2/kube-apiserver/manifests/v1.27.2\": x509: certificate signed by unknown authority" image="registry.k8s.io/kube-apiserver:v1.27.2"

k8s-master: time="2025-03-13T17:20:13+09:00" level=fatal msg="pulling image: rpc error: code = Unknown desc = failed to pull and unpack image \"registry.k8s.io/kube-apiserver:v1.27.2\": failed to resolve reference \"registry.k8s.io/kube-apiserver:v1.27.2\": failed to do request: Head \"https://registry.k8s.io/v2/kube-apiserver/manifests/v1.27.2\": x509: certificate signed by unknown authority"

k8s-master: , error: exit status 1

k8s-master: [ERROR ImagePull]: failed to pull image registry.k8s.io/kube-controller-manager:v1.27.2: output: E0313 17:20:13.323731 26275 remote_image.go:167] "PullImage from image service failed" err="rpc error: code = Unknown desc = failed to pull and unpack image \"registry.k8s.io/kube-controller-manager:v1.27.2\": failed to resolve reference \"registry.k8s.io/kube-controller-manager:v1.27.2\": failed to do request: Head \"https://registry.k8s.io/v2/kube-controller-manager/manifests/v1.27.2\": x509: certificate signed by unknown authority" image="registry.k8s.io/kube-controller-manager:v1.27.2"