How to debug container agent failing on k8s?

Build Environment
1

image
image1454×718 146 KB

NAME                                        READY   STATUS              RESTARTS   AGE
container-agent-596996bc-bwk6z              1/1     Running             0          151m
ccita-6549162452f2417069e29e68-0-cz9gtndg   0/1     ContainerCreating   0          7m55s
ccita-654916b80fd1ce4df0d5c037-0-al284w8p   0/1     ContainerCreating   0          7m42s
ccita-654915d17865341f599565c7-0-8qbtwuen   0/1     ImagePullBackOff    0          8m
ccita-654917011e73e7635f94d95b-0-2g2p1qm9   0/1     ContainerCreating   0          7m27s
ccita-6549174875096f53172bccb8-0-qrk1fy5u   0/1     ContainerCreating   0          7m17s
ccita-654915d17865341f599565c7-4-3e1fsx5t   0/1     ImagePullBackOff    0          8m
ccita-65491774d0dce1493723e4f8-0-6h0dw901   0/1     ContainerCreating   0          82s
ccita-65491774d0dce1493723e4fe-0-hxn5jiu9   0/1     ContainerCreating   0          82s
ccita-654917521e73e7635f94dcb9-0-txbbu52b   0/1     ContainerCreating   0          81s
ccita-65491774d0dce1493723e501-0-poeiv38b   0/1     ContainerCreating   0          76s
ccita-65491774d0dce1493723e4fb-0-08buutnu   0/1     ContainerCreating   0          76s
ccita-6549177475096f53172bce6b-0-z19pwszy   0/1     ContainerCreating   0          76s
ccita-65491774d0dce1493723e4fc-0-pvdhp483   0/1     ContainerCreating   0          76s
ccita-65491774d0dce1493723e500-0-u88ol79v   0/1     ContainerCreating   0          76s
ccita-65491774d0dce1493723e500-1-qbszkop2   0/1     ContainerCreating   0          75s
ccita-65491774d0dce1493723e4fd-2-wv0zt2a2   0/1     ContainerCreating   0          70s
ccita-65491774d0dce1493723e4fd-1-8qm7535n   0/1     ContainerCreating   0          70s
ccita-65491774d0dce1493723e4fd-0-0drsp67i   0/1     ContainerCreating   0          66s
ccita-654916079d469b088ed2f72f-0-zp3ir52s   0/1     ImagePullBackOff    0          7m55s

I have a lot of ContainerCreating and ImagePullBackOff in my k8s, how to debug this?

2

This looks to be more related to the Kubernetes environment and the container image that you are using.
You might want to use kubectl describe on the pod to see what is going on