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redspread / localkube

DEPRECRATED - See https://github.com/kubernetes/minikube
Apache License 2.0
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localkube doesn't pull images from local docker registry #64

Closed hharnisc closed 8 years ago

hharnisc commented 8 years ago

If I run

$ docker build -t hharnisc/thetime .

The image builds as expected and I can run it with a docker run command. However after deploying with spread build . The image is stuck trying to pull the image from docker hub.

Below is the log output from kubectrl describe po thetime

Name:       thetime-axe64
Namespace:  default
Node:       default/10.0.2.15
Start Time: Tue, 24 May 2016 23:17:52 -0500
Labels:     app=thetime,role=backend,version=0.0.1
Status:     Pending
IP:     10.32.0.3
Controllers:    ReplicationController/thetime
Containers:
  thetime:
    Container ID:   
    Image:      hharnisc/thetime
    Image ID:       
    Port:       8080/TCP
    QoS Tier:
      cpu:      BestEffort
      memory:       BestEffort
    State:      Waiting
      Reason:       ImagePullBackOff
    Ready:      False
    Restart Count:  0
    Environment Variables:
Conditions:
  Type      Status
  Ready     False 
No volumes.
Events:
  FirstSeen LastSeen    Count   From            SubobjectPath           Type        Reason      Message
  --------- --------    -----   ----            -------------           --------    ------      -------
  4m        4m      1   {default-scheduler }                    Normal      Scheduled   Successfully assigned thetime-axe64 to default
  4m        1m      5   {kubelet default}   spec.containers{thetime}    Normal      Pulling     pulling image "hharnisc/thetime"
  4m        1m      5   {kubelet default}   spec.containers{thetime}    Warning     Failed      Failed to pull image "hharnisc/thetime": Error: image hharnisc/thetime not found
  4m        1m      5   {kubelet default}                   Warning     FailedSync  Error syncing pod, skipping: failed to "StartContainer" for "thetime" with ErrImagePull: "Error: image hharnisc/thetime not found"

  4m    2s  18  {kubelet default}   spec.containers{thetime}    Normal  BackOff     Back-off pulling image "hharnisc/thetime"
  4m    2s  18  {kubelet default}                   Warning FailedSync  Error syncing pod, skipping: failed to "StartContainer" for "thetime" with ImagePullBackOff: "Back-off pulling image \"hharnisc/thetime\""

If I ssh/login to the running redspread/localkube container with 

$ docker exec -it 0f232e507ec2 sh

And list docker images within the localkube container, I get the following output

$ docker ls
REPOSITORY                       TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
hharnisc/thetime                 latest              sha256:6d5c6        39 minutes ago      120.8 MB
mhart/alpine-node                latest              sha256:c6403        7 days ago          45.99 MB
redspreadapps/localkube          latest              sha256:79b86        7 weeks ago         124.8 MB
weaveworks/weaveexec             1.4.5               sha256:e566e        12 weeks ago        60.67 MB
weaveworks/weave                 1.4.5               sha256:28d6d        12 weeks ago        19.24 MB
gcr.io/google_containers/pause   2.0                 sha256:2b583        7 months ago        350.2 kB

After I do a docker push hharnisc/thetime, the image runs as expected in localkube.

hharnisc commented 8 years ago

So it turns out I needed to add another line to service.rc.yml file to only pull from docker hub if it isn't present in the local registry.

But the idea is to add this line to the containers:

containers:
        - name: my-service
          image: hharnisc/my-service
          imagePullPolicy: IfNotPresent # <--- needed this
          ports:
            - containerPort: 8080

More detailed description of the change: https://github.com/hharnisc/generator-kube-service/pull/1