I'm fighting with Kubernetes. I've googled a lot and looked at a few answers such as this one - for example - but can't seem to get it to work.
I've created a docker container and push to local registry:
sudo docker run -d -p 5000:5000 --name registry registry:2
sudo docker tag i-a/i-a:latest localhost:5000/i-a
sudo docker push localhost:5000/i-a
The last command gives:
The push refers to a repository [localhost:5000/i-a]
e0a33c56cca0: Pushed
54ab83ede54d: Pushed
f5a58f369605: Pushed
cd7100a72410: Pushed
latest: digest: sha256:0f30cdf6b4a4e0e382a6cae50c1325103c3b987d9e51c42edea2244a82ae1331 size: 1164
Doing sudo docker pull localhost:5000/i-a gives:
Using default tag: latest
latest: Pulling from i-a
Digest: sha256:0f30cdf6b4a4e0e382a6cae50c1325103c3b987d9e51c42edea2244a82ae1331
Status: Image is up to date for localhost:5000/i-a:latest
The config file i-a.yaml:
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
labels:
run: i-a
name: i-a
namespace: default
spec:
replicas: 3
selector:
matchLabels:
run: i-a
strategy:
rollingUpdate:
maxSurge: 1
maxUnavailable: 1
type: RollingUpdate
template:
metadata:
labels:
run: i-a
spec:
containers:
- image: localhost:5000/i-a
imagePullPolicy: IfNotPresent
name: i-a
ports:
- containerPort: 8090
dnsPolicy: ClusterFirst
restartPolicy: Always
---
apiVersion: v1
kind: Service
metadata:
labels:
run: i-a
name: i-a
namespace: default
spec:
ports:
- port: 80
protocol: TCP
targetPort: 8090
selector:
run: i-a
sessionAffinity: None
type: ClusterIP
When I do sudo kubectl get pods --all-namespaces I get:
...
default i-a-3400848339-0x6c9 0/1 ImagePullBackOff 0 13m
default i-a-3400848339-7ltp1 0/1 ImagePullBackOff 0 13m
default i-a-3400848339-wv092 0/1 ImagePullBackOff 0 13m
The ImagePullBackOff turns to ErrImagePull.
When I run kubectl describe pod i-a-3400848339-0x6c9 I get an error Failed to pull image "localhost:5000/i-a": Error while pulling image: Get http://localhost:5000/v1/repositories/i-a/images: dial tcp 127.0.0.1:5000: getsockopt: connection refused:
Name: i-a-3400848339-0x6c9
Namespace: default
Node: minikube/192.168.99.100
Start Time: Mon, 09 Apr 2018 21:11:15 +0200
Labels: pod-template-hash=3400848339
run=i-a
Status: Pending
IP: 172.17.0.7
Controllers: ReplicaSet/i-a-3400848339
Containers:
i-a:
Container ID:
Image: localhost:5000/i-a
Image ID:
Port: 8090/TCP
State: Waiting
Reason: ImagePullBackOff
Ready: False
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-bmwkd (ro)
Environment Variables: <none>
Conditions:
Type Status
Initialized True
Ready False
PodScheduled True
Volumes:
default-token-bmwkd:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-bmwkd
QoS Class: BestEffort
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubobjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
18m 18m 1 {default-scheduler } Normal Scheduled Successfully assigned i-a-3400848339-0x6c9 to minikube
18m 2m 8 {kubelet minikube} spec.containers{i-a} Normal Pulling pulling image "localhost:5000/i-a"
18m 2m 8 {kubelet minikube} spec.containers{i-a} Warning Failed Failed to pull image "localhost:5000/i-a": Error while pulling image: Get http://localhost:5000/v1/repositories/i-a/images: dial tcp 127.0.0.1:5000: getsockopt: connection refused
18m 2m 8 {kubelet minikube} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "i-a" with ErrImagePull: "Error while pulling image: Get http://localhost:5000/v1/repositories/i-a/images: dial tcp 127.0.0.1:5000: getsockopt: connection refused"
18m 13s 75 {kubelet minikube} spec.containers{i-a} Normal BackOff Back-off pulling image "localhost:5000/i-a"
18m 13s 75 {kubelet minikube} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "i-a" with ImagePullBackOff: "Back-off pulling image \"localhost:5000/i-a\""
I'm not sure where to look next... (I get 404 when I browse to http://localhost:5000/v1/repositories/i-a/images)
