Version:

Failure to build Functions

Symptom

You have issues when building your Function.

Cause

In its default configuration, Serverless uses persistent volumes as the internal registry to store Docker images for Functions. The default storage size of such a volume is 20 GB. When this storage becomes full, you will have issues with building your Functions.

Remedy

As a workaround, increase the default capacity up to a maximum of 100 GB by editing the serverless-docker-registry PersistentVolumeClaim (PVC) object on your cluster.

Edit the serverless-docker-registry PVC:

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kubectl edit pvc -n kyma-system serverless-docker-registry

Change the value of spec.resources.requests.storage to higher, such as 30 GB, to increase the PVC capacity:
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```
...
spec:
  resources:
    requests:
      storage: 30Gi
```

Save the changes and wait for a few minutes. Use this command to check if the CAPACITY of the serverless-docker-registry PVC has changed as expected:

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kubectl get pvc serverless-docker-registry -n kyma-system

You will get this result:

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NAME                        STATUS   VOLUME                                    CAPACITY   ACCESS MODES   STORAGECLASS   AGE
serverless-docker-registry  Bound    pvc-a69b96hc-ahbc-k85d-0gh6-19gkcr4yns4k  30Gi       RWO            standard       23d

If the value of the storage does not change, restart the Pod to which this PVC is bound to finish the volume resize.

To do this, follow these steps:

List all available Pods in the kyma-system Namespace:
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```
kubectl get pods -n kyma-system
```
Search for the Pod with the serverless-docker-registry-{UNIQUE_ID} name and delete it. See the example below:
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```
kubectl delete pod serverless-docker-registry-6869bd57dc-9tqxp -n kyma-system
```
CAUTION: Do not remove Pods named serverless-docker-registry-self-signed-cert-{UNIQUE_ID}.
Search for the serverless-docker-registry PVC again to check that the capacity was resized:
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```
kubectl get pvc serverless-docker-registry -n kyma-system
```