<p>I am going through the Step 3: Push the Docker image to Container Registry on how to setup a docker image from Google Clound Engine to Kubernetes engine, from <a href="https://cloud.google.com/kubernetes-engine/docs/tutorials/hello-app#step_3_push_the_docker_image_to" rel="nofollow noreferrer">the following link</a> though:</p>
<p>$</p>
<pre><code>docker push gcr.io/${PROJECT_ID}/modo:v1
The push refers to repository [gcr.io/6267453573146657250/modo]
6a2e5ee87a10: Preparing
a276c90a34a4: Preparing
d675dcbcf549: Preparing
d675dcbcf549: Retrying in 1 second
0829f83db381: Retrying in 1 second
db7b61b8aab8: Retrying in 5 seconds
c5b2ac536264: Waiting
6c08a5b7d8f4: Waiting
c5b2ac536264: Waiting
6c08a5b7d8f4: Waiting
50867bb8f5d7: Waiting
72d6c6f0ea06: Waiting
8686c6b8d999: Waiting
44b57351135e: Waiting
00b029f9aa09: Waiting
18f9b4e2e1bc: Waiting
unknown: Project 'modo:6267453573146657250' not found or deleted.
</code></pre>
<p>I am sure the ID '6267453573146657250' is valid since it's the only project I have on the cloud engine.</p>

<p>You need to use the Project ID for <code>PROJECT_ID</code>, not the project <em>number</em>.</p>
<p><a href="https://cloud.google.com/resource-manager/docs/creating-managing-projects#identifying_projects" rel="noreferrer">This guide explains where to find this info</a></p>
<p><a href="https://i.stack.imgur.com/KsrjG.png" rel="noreferrer"><img src="https://i.stack.imgur.com/KsrjG.png" alt="enter image description here" /></a></p>
<p>Note that the <strong>Project ID</strong> in this example is <code>my-sample-project-191923</code>, not <code>314053285323</code>. The latter is the project <em>number</em>.</p>
