sample abn extension (#131)

Signed-off-by: Michael Kalantar <[email protected]>

Author: kalantar

samples/knative-abn-extension/_knative-istio.none.routemap.tpl

@@ -0,0 +1,18 @@
+{{- define "env.knative-istio.none.routemap" }}
+
+{{- $versions := include "normalize.versions.ksvc" . | mustFromJson }}
+
+apiVersion: v1
+kind: ConfigMap
+{{- template "routemap.metadata" . }}
+data:
+  strSpec: |
+    versions: 
+    {{- range $i, $v := $versions }}
+    - resources:
+      - gvrShort: ksvc
+        name: {{ template "ksvc.name" $v }}
+        namespace: {{ template "ksvc.namespace" $v }}
+      weight: {{ $v.weight }}
+    {{- end }} {{- /* range $i, $v := $versions */}}
+{{- end }} {{- /* define "env.knative-istio.none.routemap" */}}

samples/knative-abn-extension/_knative-istio.none.tpl

@@ -0,0 +1,9 @@
+{{- define "env.knative-istio.none" }}
+
+{{- /* prepare versions for simpler processing */}}
+{{- $versions := include "normalize.versions.ksvc" . | mustFromJson }}
+
+{{- /* routemap */}}
+{{ include "env.knative-istio.none.routemap" . }}
+
+{{- end }} {{- /* define "env.knative-istio.none" */}}

samples/knative-abn-extension/_knative-istio.tpl

@@ -0,0 +1,19 @@
+{{- define "env.knative-istio" }}
+
+{{- /* Prepare versions for simpler processing */}}
+{{- $versions := include "normalize.versions.ksvc" . | mustFromJson }}
+
+{{- range $i, $v := $versions }}
+{{- /* KNative Service */}}
+{{ include "env.knative.version.ksvc" $v }}
+---
+{{- end }} {{- /* range $i, $v := $versions */}}
+
+{{- /* routemap (and other strategy specific objects) */}}
+{{- if not .Values.application.strategy }}
+{{ include "env.knative-istio.none" . }}
+{{- else if eq "none" .Values.application.strategy }}
+{{ include "env.knative-istio.none" . }}
+{{- end }} {{- /* if eq ... .Values.application.strategy */}}
+
+{{- end }} {{- /* define "env.knative-istio" */}}

samples/knative-abn-extension/_knative.helpers.tpl

@@ -0,0 +1,34 @@
+{{- /* deployment specific wrapping for normalize.versions */}}
+{{- define "normalize.versions.ksvc" }}
+{{- $versions := include "normalize.versions" . | mustFromJson }}
+  {{- $normalizedVersions := list }}
+  {{- range $i, $v := $versions -}}
+    {{- $version := merge $v }}
+
+    {{- $version = set $version "port" (pluck "port" (dict "port" 80) $.Values.application $v | last) }}
+    {{- if (and $v.ksvcSpecification $v.ksvcSpecification.ports) }}
+      {{- $version = set $version "port" (pluck "port" $v (index $v.ksvcSpecification.ports 0) | last) }}
+    {{- end }}
+
+    {{- $normalizedVersions = append $normalizedVersions $version }}
+  {{- end }} {{- /* range $i, $v := $versions */}}
+  {{- mustToJson $normalizedVersions }}
+{{- end }} {{- /* define "normalize.versions.ksvc" */}}
+
+{{- /* Identify the name of a Knative Service object */ -}}
+{{- define "ksvc.name" -}}
+{{- if (and .ksvcSpecification .ksvcSpecification.metadata .ksvcSpecification.metadata.name) -}}
+{{ .ksvcSpecification.metadata.name }}
+{{- else -}}
+{{ .VERSION_NAME }}
+{{- end -}}
+{{- end }} {{- /* define "ksvc.name" */ -}}
+
+{{- /* Identify the namespace of a Knative Service object */ -}}
+{{- define "ksvc.namespace" -}}
+{{- if (and .ksvcSpecification .ksvcSpecification.metadata .ksvcSpecification.metadata.namespace) -}}
+{{ .ksvcSpecification.metadata.namespace }}
+{{- else -}}
+{{ .VERSION_NAMESPACE }}
+{{- end -}}
+{{- end }} {{- /* define "ksvc.namespace" */ -}}

samples/knative-abn-extension/_knative.version.ksvc.tpl

@@ -0,0 +1,36 @@
+{{- define "env.knative.version.ksvc" }}
+
+{{- /* compute basic metadata */}}
+{{- $metadata := include "application.version.metadata" . | mustFromJson }}
+
+{{- /* define Service */}}
+apiVersion: serving.knative.dev/v1
+kind: Service
+{{- if .ksvcSpecification }}
+metadata:
+{{- if .ksvcSpecification.metadata }}
+  {{ toYaml (merge .ksvcSpecification.metadata $metadata) | nindent 2 | trim }}
+{{- else }}
+  {{ toYaml $metadata | nindent 2 | trim }}
+{{- end }} {{- /* if .ksvcSpecification.metadata */}}
+spec:
+  {{ toYaml .ksvcSpecification.spec | nindent 2  | trim }}
+{{- else }} {{- /* if .ksvcSpecification */}}
+{{- if not .image }} {{- /* require .image */}}
+{{- print "missing field: image required when deploymentSpecification absent" | fail }}
+{{- end }} {{- /* if not .image */}}
+{{- if not .port }} {{- /* require .port */}}
+{{- print "missing field: port required when deploymentSpecification absent" | fail }}
+{{- end }} {{- /* if not .port */}}
+metadata:
+  {{ toYaml $metadata | nindent 2 | trim }}
+spec:
+  template:
+    spec:
+      containers:
+        - image: {{ .image }}
+          ports:
+            - containerPort: {{ .port }}
+{{- end }} {{- /* if .ksvcSpecification */}}
+
+{{- end }} {{- /* define "env.knative.version.ksvc" */}}