Google Cloud Build can't find kubernetes deployment when updating image - kubernetes

Question

I'm trying to set up a CI pipeline using Cloud Build. My build file builds and pushes the Docker images, and then uses the kubectl builder to update the images in a kubernetes deployment. However I'm getting the following error:
Error from server (NotFound): deployments.extensions "my-app" not found
Running: kubectl set image deployment my-app my-app-api=gcr.io/test-project-195004/my-app-api:ef53550e2ahy784a14iouyh79712c9f
I've verified via the UI that the deployment is active and has that name. Thought it could be a permissions issue but as far as I know the Cloud Build service account has the Kubernetes Engine Admin role, and is successfully able to pull the cluster auth data in the previous step.
EDIT: As requested, here is my build script:
steps:
- name: 'gcr.io/cloud-builders/docker'
args: ['build', '-t', 'gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA', '-f', 'deploy/api/Dockerfile', '--no-cache', '.']
- name: 'gcr.io/cloud-builders/kubectl'
args:
- set
- image
- deployment
- my-app
- my-app=gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA
env:
- 'CLOUDSDK_COMPUTE_ZONE=${_ZONE}'
- 'CLOUDSDK_CONTAINER_CLUSTER=${_CLUSTER}'
images: ['gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA']
timeout: 5000s
And the deployment.yaml --
metadata:
annotations:
deployment.kubernetes.io/revision: "1"
creationTimestamp: 2018-11-04T17:34:44Z
generation: 1
labels:
app: my-app
name: my-app
namespace: my-app
resourceVersion: "4370"
selfLink: /apis/extensions/v1beta1/namespaces/my-app/deployments/my-app
uid: 65kj54g3-e057-11e8-81bc-42010aa20094
spec:
replicas: 3
selector:
matchLabels:
app: my-app
strategy:
rollingUpdate:
maxSurge: 1
maxUnavailable: 1
type: RollingUpdate
template:
metadata:
creationTimestamp: null
labels:
app: my-app
spec:
containers:
- image: gcr.io/test-project/my-app-api:f16erogierjf1abd436e733398a08e1b76ce6b712
imagePullPolicy: IfNotPresent
name: my-appi-api
resources: {}
terminationMessagePath: /dev/termination-log
terminationMessagePolicy: File
dnsPolicy: ClusterFirst
restartPolicy: Always
schedulerName: default-scheduler
securityContext: {}
terminationGracePeriodSeconds: 30
status:
availableReplicas: 3
conditions:
- lastTransitionTime: 2018-11-04T17:37:59Z
lastUpdateTime: 2018-11-04T17:37:59Z
message: Deployment has minimum availability.
reason: MinimumReplicasAvailable
status: "True"
type: Available
observedGeneration: 1
readyReplicas: 3
replicas: 3
updatedReplicas: 3

Answer 1

You need to define the namespace for your deployment when using kubectl
if you're not using the default namespace.
Because you're using namespace for your deployment namespace: my-app you will need to add it to the command using the --namspace flag.
Here's how to do it inside cloudbuild.yaml
steps:
- name: 'gcr.io/cloud-builders/docker'
args: ['build', '-t', 'gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA', '-f', 'deploy/api/Dockerfile', '--no-cache', '.']
- name: 'gcr.io/cloud-builders/kubectl'
args:
- set
- image
- deployment
- my-app
- my-app=gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA
- --namespace
- my-app
env:
- 'CLOUDSDK_COMPUTE_ZONE=${_ZONE}'
- 'CLOUDSDK_CONTAINER_CLUSTER=${_CLUSTER}'
images: ['gcr.io/$PROJECT_ID/my-app-api:$COMMIT_SHA']
timeout: 5000s