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my helm chart template functions
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| {{/* | |
| imagePullPolicy: | |
| this function will parse the imageTag with semver | |
| imagePullPolicy is determined based of a versions prerelease | |
| example usage: | |
| ``` | |
| image: {{ .Values.ImageTag }} | |
| {{ include "imagePullPolicy" .Values.ImageTag | indent 8 }} | |
| env: ... | |
| ``` | |
| */}} | |
| {{- define "imagePullPolicy" -}} | |
| {{ $parsed := replace "_" "+" . | semver -}} | |
| # semver prerelease: '{{ print $parsed.Prerelease }}' | |
| # semver build metadata: '{{ print $parsed.Metadata }}' | |
| {{- if eq $parsed.Prerelease "SNAPSHOT" }} | |
| imagePullPolicy: Always | |
| {{- else }} | |
| imagePullPolicy: IfNotPresent | |
| {{- end }} | |
| # imagePullPolicy is set by "imagePullPolicy" in _helpers.tpl | |
| {{- end -}} |
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