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질문 & 답변
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데브옵스 · 인프라
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해결 여부
미해결
ImagePullBackOff 오류가 발생합니다.
21.01.25 16:09 작성 조회수 3.44k
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답변을 작성해보세요.
1
남태규
질문자2021.01.27
드라이버는 hyper-v를 사용하고 있습니다.
λ minikube start --insecure-registry="0.0.0.0/0"
� Microsoft Windows 10 Pro 10.0.19042 Build 19042 위의 minikube v1.16.0
✨ 자동적으로 hyperv 드라이버가 선택되었습니다
� Starting control plane node minikube in cluster minikube
� hyperv VM (CPUs=2, Memory=4000MB, Disk=20000MB) 를 생성하는 중 ...
❗ This VM is having trouble accessing https://k8s.gcr.io
� To pull new external images, you may need to configure a proxy: https://minikube.sigs.k8s.io/docs/reference/networking/proxy/
� 쿠버네티스 v1.20.0 을 Docker 20.10.0 런타임으로 설치하는 중
▪ Generating certificates and keys ...
▪ Booting up control plane ...
▪ Configuring RBAC rules ...
� Verifying Kubernetes components...
� Enabled addons: storage-provisioner, default-storageclass
� Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
0
subicura
지식공유자2021.01.30
안녕하세요! 인증서 이슈를 재현하기 어려워 답변이 늦었습니다 ㅠ
명령어를 변경하고 다시 테스트 부탁드립니다.
minikube start --insecure-registry=production.cloudflare.docker.com:443,docker.io:443
설정이 정상적으로 되었는지 확인하려면 minikube ssh 로 콘솔 접근 후 다음 명령어로 확인할 수 있습니다.
cat /usr/lib/systemd/system/docker.service
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2376 -H unix:///var/run/docker.sock --default-ulimit=nofile=1048576:1048576 --tlsverify --tlscacert /etc/docker/ca.pem --tlscert /etc/docker/server.pem --tlskey /etc/docker/server-key.pem --label provider=hyperkit --insecure-registry 10.96.0.0/12 --insecure-registry production.cloudflare.docker.com:443 --insecure-registry docker.io:443
동일하게 오류가 발생한다면 기본 이미지 경로를 변경해보시겠어요?
mysql:5.6 -> docker.io/library/mysql:5.6
wordpress:5.5.3-apache -> docker.io/library/wordpress:5.5.3-apache
0
subicura
지식공유자2021.01.26
minikube delete 하시고 옵션을 추가하고 새로 만들어도 동일한 메시지가 나오시나요?
minikube start --insecure-registry="0.0.0.0/0"
minikube 실행시 driver가 무엇이였는지 알 수 있을까요? docker 드라이버를 사용하셨다면 현재 docker for desktop 설정을 변경해야 할 것 같습니다.
docker engine 설정에서 insecure-registry 설정을 추가해보시겠어요?
{
"insecure-registries": ["0.0.0.0/0"]
}
0
남태규
질문자2021.01.26
동일한 오류가 계속 발생하는데 다른 방법은 없을까요? 사무실 노트북에서 교육 수강 중이라 다른 네트워크 환경으로는 쉽지 않은 상황입니다.
λ kubectl describe po
Name: wordpress-5f59577d4d-l9nm8
Namespace: default
Priority: 0
Node: minikube/172.29.200.203
Start Time: Tue, 26 Jan 2021 10:11:28 +0900
Labels: app=wordpress
pod-template-hash=5f59577d4d
tier=frontend
Annotations: <none>
Status: Pending
IP: 172.17.0.4
IPs:
IP: 172.17.0.4
Controlled By: ReplicaSet/wordpress-5f59577d4d
Containers:
wordpress:
Container ID:
Image: wordpress:5.5.3-apache
Image ID:
Port: 80/TCP
Host Port: 0/TCP
State: Waiting
Reason: ImagePullBackOff
Ready: False
Restart Count: 0
Environment:
WORDPRESS_DB_HOST: wordpress-mysql
WORDPRESS_DB_PASSWORD: password
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-qrbj5 (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
default-token-qrbj5:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-qrbj5
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m51s default-scheduler Successfully assigned default/wordpress-5f59577d4d-l9nm8 to minikube
Warning Failed 7m35s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611626504-DY7I4hl3jqoR5v9HHqPZ%2Bg62Rtc%3D: x509: certificate signed by unknown authority
Warning Failed 7m14s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611626525-wvDSn0woAORL9xUyBDARmHbUPVE%3D: x509: certificate signed by unknown authority
Warning Failed 6m38s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611626561-NbpYr9ZHlt3N5GIQpP3gplL7%2BcU%3D: x509: certificate signed by unknown authority
Normal Pulling 5m57s (x4 over 7m50s) kubelet Pulling image "wordpress:5.5.3-apache"
Warning Failed 5m47s (x4 over 7m35s) kubelet Error: ErrImagePull
Warning Failed 5m47s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611626612-IhIiHSyRB9V8c8qW7WDW7SMApAA%3D: x509: certificate signed by unknown authority
Normal BackOff 5m20s (x6 over 7m34s) kubelet Back-off pulling image "wordpress:5.5.3-apache"
Warning Failed 2m38s (x16 over 7m34s) kubelet Error: ImagePullBackOff
Name: wordpress-mysql-545d9c6dc-2jl2j
Namespace: default
Priority: 0
Node: minikube/172.29.200.203
Start Time: Tue, 26 Jan 2021 10:11:28 +0900
Labels: app=wordpress
pod-template-hash=545d9c6dc
tier=mysql
Annotations: <none>
Status: Pending
IP: 172.17.0.3
IPs:
IP: 172.17.0.3
Controlled By: ReplicaSet/wordpress-mysql-545d9c6dc
Containers:
mysql:
Container ID:
Image: mysql:5.6
Image ID:
Port: 3306/TCP
Host Port: 0/TCP
State: Waiting
Reason: ImagePullBackOff
Ready: False
Restart Count: 0
Environment:
MYSQL_ROOT_PASSWORD: password
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-qrbj5 (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
default-token-qrbj5:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-qrbj5
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 7m51s default-scheduler Successfully assigned default/wordpress-mysql-545d9c6dc-2jl2j to minikube
Warning Failed 7m41s kubelet Failed to pull image "mysql:5.6": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/eb/eb4e842271a48c377b57f2a39ca3f5c62f659011f0032eaf124457233cc84314/data?verify=1611626498-cxfr9p0YWveVFYGZAMng9W%2Byrpk%3D: x509: certificate signed by unknown authority
Warning Failed 7m21s kubelet Failed to pull image "mysql:5.6": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/eb/eb4e842271a48c377b57f2a39ca3f5c62f659011f0032eaf124457233cc84314/data?verify=1611626518-kAs68n%2BQArDWypn6o4%2BrYRSpynM%3D: x509: certificate signed by unknown authority
Warning Failed 6m51s kubelet Failed to pull image "mysql:5.6": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/eb/eb4e842271a48c377b57f2a39ca3f5c62f659011f0032eaf124457233cc84314/data?verify=1611626548-XqjEDWg62rIV8XIYCYUgPWivOo8%3D: x509: certificate signed by unknown authority
Normal Pulling 6m (x4 over 7m50s) kubelet Pulling image "mysql:5.6"
Warning Failed 5m54s (x4 over 7m41s) kubelet Error: ErrImagePull
Warning Failed 5m54s kubelet Failed to pull image "mysql:5.6": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/eb/eb4e842271a48c377b57f2a39ca3f5c62f659011f0032eaf124457233cc84314/data?verify=1611626605-o41JwXM9opv1M2decSpuGTnR%2Bgo%3D: x509: certificate signed by unknown authority
Normal BackOff 5m39s (x6 over 7m40s) kubelet Back-off pulling image "mysql:5.6"
Warning Failed 2m43s (x18 over 7m40s) kubelet Error: ImagePullBackOff
NAM@DESKTOP-F3P6LSN /c/Temp/guide/index
0
subicura
지식공유자2021.01.25
안녕하세요! 상세한 로그 감사합니다. 로그 상으로 봤을때 도커 이미지를 다운받는데 실패하여 ImagePullBackOff 에러가 발생한 것으로 보입니다.
테스트하고 계신 환경의 네트워크가 사설인증서가 필요한 것으로 보입니다. 다른 네트워크 망에서 테스트하시거나 minikube를 생성할때 --insecure-registry 옵션을 이용해보시겠어요?
minikube start --insecure-registry="0.0.0.0/0"
0
남태규
질문자2021.01.25
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled 3m24s default-scheduler Successfully assigned default/wordpress-5f59577d4d-mfvdj to minikube
Warning Failed 3m9s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611562023-EEtLSw79Y%2FDqonD7esCGJPkaZUw%3D: x509: certificate signed by unknown authority
Warning Failed 2m50s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611562042-hKDq0BUKSOD2VmKlyodjmpI5wus%3D: x509: certificate signed by unknown authority
Warning Failed 2m14s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611562077-aYupBM4FUOa1OLSwjfE%2B5IiId7Y%3D: x509: certificate signed by unknown authority
Normal Pulling 84s (x4 over 3m23s) kubelet Pulling image "wordpress:5.5.3-apache"
Warning Failed 78s (x4 over 3m9s) kubelet Error: ErrImagePull
Warning Failed 78s kubelet Failed to pull image "wordpress:5.5.3-apache": rpc error: code = Unknown desc = error pulling image configuration: Get https://production.cloudflare.docker.com/registry-v2/docker/registry/v2/blobs/sha256/0d/0d35c2300ec845fda141ba012f7c6dccde8f0ae106b8f4bb0fcfced69380f851/data?verify=1611562134-2mcUL1sEwqGJE%2FRhT53GOLqQwl8%3D: x509: certificate signed by unknown authority
Normal BackOff 65s (x6 over 3m9s) kubelet Back-off pulling image "wordpress:5.5.3-apache"
Warning Failed 51s (x7 over 3m9s) kubelet Error: ImagePullBackOff
답변 6