Kubernetes: Cannot convert int64 to string. Kubernetes fails to interpret integer value in helmchart values.yaml file

Question

I have a values.yaml file in which I have given spring_datasource_hikari_maximum_pool_size: "10"

In deployment yaml I have used this value as

 - name: SPRING_DATASOURCE_HIKARI_MAXIMUM-POOL-SIZE
    value: {{ .Values.spring_datasource_hikari_maximum_pool_size }}

However, when used inside the deployment.yaml file it fails with the below error.

Deploy failed: The request is invalid: patch: Invalid value: "map[metadata:map[annotations:map[kubectl.kubernetes.io/last-applied-configuration:{"apiVersion":"apps/v1","kind":"Deployment","metadata":{"annotations":
{
(helm values etc)
`{"name":"SPRING_DATASOURCE_HIKARI_MAXIMUM-POOL-SIZE","value":10}]` **(this is the incorrect value)** 
}
cannot convert int64 to string

What is the correct format of using an integer value from values.yaml file in a deployment.yaml file?

I have also tried multiple combinations with quotes "" but nothing seems to be working.

Any help is appreciated, Thanks in advance.

Answer 1

I was able to resolve this by using double quotes on the value itself in deployment.yaml file

- name: SPRING_DATASOURCE_HIKARI_MAXIMUM-POOL-SIZE
  value: "{{ .Values.spring_datasource_hikari_maximum_pool_size }}"

Since this was a production instance I could not check with @David Maze and Vit's solution.

Edit:

Tried with quote option and it worked too.

 - name: SPRING_DATASOURCE_HIKARI_MAXIMUMPOOLSIZE 
   value: {{ quote .Values.spring_datasource_hikari_maximum_pool_size }}