How do I run private docker images on Google Container Engine

Question

How do I run a docker image that I built locally on Google Container Engine?

Answer 1

You can push your image to Google Container Registry and reference them from your pod manifest.

Detailed instructions

Assuming you have a DOCKER_HOST properly setup , a GKE cluster running the last version of Kubernetes and Google Cloud SDK installed.

1. Setup some environment variables

   gcloud components update kubectl gcloud config set project <your-project> gcloud config set compute/zone <your-cluster-zone> gcloud config set container/cluster <your-cluster-name> gcloud container clusters get-credentials <your-cluster-name> 

2. Tag your image

   docker tag <your-image> gcr.io/<your-project>/<your-image> 

3. Push your image

   gcloud docker push gcr.io/<your-project>/<your-image> 

4. Create a pod manifest for your container: my-pod.yaml

   id: my-pod kind: Pod apiVersion: v1 desiredState:   manifest:     containers:     - name: <container-name>       image: gcr.io/<your-project>/<your-image>     ... 

5. Schedule this pod

   kubectl create -f my-pod.yaml 

6. Repeat from step (4) for each pod you want to run. You can have multiple definitions in a single file using a line with --- as delimiter.

Answer 2

The setup I use is to deploy my own docker registry combined with ssh port forwarding. For that purpose I set up a ssh server in the cluster and use ~/.ssh/config to configure a port forward to the registry.

Also I use jenkins to build the images right in the cloud.