Following Les Jackson's tutorial on microservices, on local installation of Docker with Kubernetes enabled, I wanted to create a new pod in Kubernetes that would contain an image of ms sql server express, available here. The deployment file is exactly the same as in the video, but I can't get it to work. Each time the pod ends with status ImagePullBack. After running kubectl describe pod:
Name: mssql-depl-5cd6d7d486-nrrkn
Namespace: default
Priority: 0
Node: docker-desktop/192.168.65.4
Start Time: Thu, 28 Jul 2022 12:09:34 +0200
Labels: app=mssql
pod-template-hash=5cd6d7d486
Annotations: <none>
Status: Pending
IP: 10.1.0.27
IPs:
IP: 10.1.0.27
Controlled By: ReplicaSet/mssql-depl-5cd6d7d486
Containers:
mssql:
Container ID:
Image: mcr.microsoft.com/mssql/server:2017-latest
Image ID:
Port: 1433/TCP
Host Port: 0/TCP
State: Waiting
Reason: ImagePullBackOff
Ready: False
Restart Count: 0
Environment:
MSSQL_PID: Express
ACCEPT_EULA: Y
SA_PASSWORD: <set to the key 'SA_PASSWORD' in secret 'mssql'> Optional: false
Mounts:
/var/opt/mssql/data from mssqldb (rw)
/var/run/secrets/kubernetes.io/serviceaccount from kube- api-access-xqzks (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
mssqldb:
Type: PersistentVolumeClaim (a reference to a PersistentVolumeClaim in the same namespace)
ClaimName: mssql-claim
ReadOnly: false
kube-api-access-xqzks:
Type: Projected (a volume that contains injected data from multiple sources)
TokenExpirationSeconds: 3607
ConfigMapName: kube-root-ca.crt
ConfigMapOptional: <nil>
DownwardAPI: true
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 3m42s default-scheduler Successfully assigned default/mssql-depl-5cd6d7d486-nrrkn to docker-desktop
Warning Failed 102s kubelet Failed to pull image "mcr.microsoft.com/mssql/server:2017-latest": rpc error: code = Unknown desc = context deadline exceeded
Warning Failed 102s kubelet Error: ErrImagePull
Normal BackOff 102s kubelet Back-off pulling image "mcr.microsoft.com/mssql/server:2017-latest"
Warning Failed 102s kubelet Error: ImagePullBackOff
Normal Pulling 87s (x2 over 3m41s) kubelet Pulling image "mcr.microsoft.com/mssql/server:2017-latest"
I discovered the underlying error
"rpc error: code = Unknown desc = context deadline exceeded"
And I'm not sure how to proceed further to fix this issue, I would really appreciate any help.
I posted this originally on stackoverflow here and was redirected with my issue to this site as it's potentially a networking problem.