How to override a helm value
Most Helm charts contain at least the following in their values.yaml file, which sets a default docker image tag, and also allows the user installing/upgrading the chart to specify a different image without having to modify the chart itself.
# values.yamlimage: repository: <docker-repo-url-here> tag: <docker-image-tag-here>And in the deployment yaml, fetch the values from the values.yaml
# deployment.yamlkind: Deploymentspec: template: spec: containers: - name: container-name image: "{{ .Values.image.repository }}:{{ .Values.image.tag}}"From there, you can do a simple helm upgrade <release-name> <chart-path> --set image.tag=<new-image-tag> when you want to use a new image.