When creating Kubernetes-DashboardPod, it is found that kubernetes-DashboardPod can be successfully created, but when viewing the status of pod, it is not found, and the running of pod is not found from node node. After the screening process, it was found that pod- Infrastructure image download failed, causing POD startup failure.
Pod -infrastructure image download configuration
open /etc/kubernetes/kubelet configuration file.
vim /etc/kubernetes/kubelet
1
###
# kubernetes kubelet (minion) config
# The address for The info server to serve on (set to 0.0.0.0 or “for all interfaces)
KUBELET_ADDRESS=”–address=0.0.0.0″
# The port for the info server to serve on
# KUBELET_PORT=”–port=10250″
# You may leave this blank to use the actual hostname
KUBELET_HOSTNAME=”–hostname-override=10.0.11.150″
# location of the api-server
KUBELET_API_SERVER=”–api-servers=http://10.0.11.150:8080″
# pod proceeds the container
KUBELET_POD_INFRA_CONTAINER = “- pod – infra – container – image = 10.0.11.150:5000/rhel7/pod – infrastructure: v1.0.0”
# Add your own!
KUBELET_ARGS=””

the configuration item information for the kubelet configuration file is shown above. Where the KUBELET_POD_INFRA_CONTAINER configuration item connotes the address at which the pod- Infrastructure image is downloaded. The original configuration address is:
KUBELET_POD_INFRA_CONTAINER = “– pod-infra-container-image=registry.access.redhat.com/rhel7/pod-infrastructure:latest”

1 through test, found that the domestic is unable to download the to pod – proceeds the mirror… .
The solution
first, you can first configure the local Docker and use image acceleration.
Then the image file that can be downloaded is found through Docker search Pod – Infrastructure
docker search pod-infrastructure
The INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED
docker. IO Docker. IO/openshift origin – pod The pod proceeds image for openshift 3 5
docker. IO docker. IO/infrastructureascode/aws – cli Containerized AWS CLI on alpine to avoid r… 3 [OK]
docker. IO docker. IO/newrelic/infrastructure Public image for New Relic proceeds.
3 docker. IO Docker. IO/infrastructureascode uwsgi uwsgi application server 2 [OK]
docker. IO docker. IO/manageiq/manageiq – the pods OpenShift based images for manageiq. 2 [OK]
docker.io docker.io/podigg/podigg-lc-hobbit A hobbit dataset The generator wrapper for PoDiGG 1 [OK]
docker. IO docker. IO/tianyebj/pod – infrastructure registry.access.redhat.com/rhel7/pod-infra… 1
docker. IO docker. IO/w564791/pod – infrastructure latest 1

to find the image file, you want The image is then downloaded locally through the docker pull command.
Then mirror pod-Infrastructure into the local private library and modify the KUBELET_POD_INFRA_CONTAINER configuration item in the Kubelet configuration file:
KUBELET_POD_INFRA_CONTAINER = “- pod – infra – container – image = 10.0.11.150:5000/rhel7/pod – infrastructure: v1.0.0”

among them 1, 10.0.11.150 private library, is one of my local docker rhel7/pod – infrastructure is my a mirror image of the name, kept in a private library v1.0.0 is saved version.
Finally, restart the cluster:
Master node restart command:
For SERVICES in kube-apiserver Kube-Controller-Manager Kube-scheduler; Do
systemctl restart $SERVICES
done

Node restart command:
Systemctl restart kubelet
1
note: Master Node and Node Node both make this change.
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the author: _silent YanQin
source: CSDN
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https://blog.csdn.net/A632189007/article/details/78730903 copyright statement: this article original articles for bloggers, reproduced please attach link to blog!