initial commit

Change-Id: I8e318861a258686ddc53dda08858f74c573a6520

chart/templates/_pod.tpl

@@ -0,0 +1,63 @@
+{{/*
+Get Pod Env
+- Merges default environment variables (if used) with component environment variables.
+- If using defaults, will pull out OTEL_RESOURCE_ATTRIBUTES from the list to be reused later.
+- An environment variable named OTEL_RESOURCE_ATTRIBUTES_EXTRA will have its value appended to the value of the
+OTEL_RESOURCE_ATTRIBUTES environment variable if it exists.
+- The OTEL_RESOURCES_ATTRIBUTES environment variable will typically use Kubernetes environment variable expansion and
+should be last.
+*/}}
+{{- define "otel-demo.pod.env" -}}
+{{- $resourceAttributesEnv := dict }}
+{{- $allEnvs := list }}
+
+{{- if .useDefault.env  }}
+{{-   $defaultEnvs := include "otel-demo.envOverriden" (dict "env" .defaultValues.env "envOverrides" .defaultValues.envOverrides) | mustFromJson }}
+{{-   range $defaultEnvs }}
+{{-     if eq .name "OTEL_RESOURCE_ATTRIBUTES" }}
+{{-       $resourceAttributesEnv = . }}
+{{-     else }}
+{{-       $allEnvs = append $allEnvs . }}
+{{-     end }}
+{{-   end }}
+{{- end }}
+
+{{- if or .env .envOverrides }}
+{{-   $localEnvs := include "otel-demo.envOverriden" . | mustFromJson }}
+{{-   range $localEnvs }}
+{{-     if eq .name "OTEL_RESOURCE_ATTRIBUTES" }}
+{{-       $resourceAttributesEnv = . }}
+{{-     else if and $resourceAttributesEnv (eq .name "OTEL_RESOURCE_ATTRIBUTES_EXTRA") }}
+{{-       $newValue := (printf "%s,%s" (get $resourceAttributesEnv "value") .value) }}
+{{-       $resourceAttributesEnv = dict "name" "OTEL_RESOURCE_ATTRIBUTES" "value" $newValue }}
+{{-     else }}
+{{-       $allEnvs = append $allEnvs . }}
+{{-     end }}
+{{-   end }}
+{{- end }}
+
+{{- if $resourceAttributesEnv }}
+{{-   $allEnvs = append $allEnvs $resourceAttributesEnv }}
+{{- end }}
+
+{{- tpl (toYaml $allEnvs) . }}
+{{- end }}
+
+
+{{/*
+Get Pod ports
+*/}}
+{{- define "otel-demo.pod.ports" -}}
+{{- if .ports }}
+{{-   range $port := .ports }}
+- containerPort: {{ $port.value }}
+  name: {{ $port.name}}
+{{-   end }}
+{{- end }}
+{{- if .service }}
+{{-   if .service.port }}
+- containerPort: {{.service.port}}
+  name: service
+{{-   end }}
+{{- end }}
+{{- end }}