templating

manifest/manifestfile.yml → manifest/base/deployment.yaml

@@ -15,23 +15,10 @@ spec:
         app: my-app
     spec:
       containers:
-        - name: myapp
-          image: demolearnacr.azurecr.io/demo_dev/product_list_app:
-          imagePullPolicy: Always
+        - name: my-app
+          image: product-list-app:v1
+          imagePullPolicy: IfNotPresent
           ports:
             - containerPort: 5070
       imagePullSecrets:
         - name: my-secret
-
----
-apiVersion: v1
-kind: Service
-metadata:
-  name: my-app
-spec:
-  selector:
-    app: my-app
-  ports:
-    - protocol: TCP
-      port: 5070
-      targetPort: 5070

manifest/base/kustomization.yaml

@@ -0,0 +1,5 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ./deployment.yaml
+  - ./service.yaml

manifest/deployment.yml → manifest/overlays/dev/deployment.yaml

@@ -12,10 +12,10 @@ spec:
   template:
     metadata:
       labels:
-        app: my-appa
+        app: my-app
     spec:
       containers:
-        - name: myapp
+        - name: my-app
           image: demolearnacr.azurecr.io/demo_dev/product-list-app:v1
           imagePullPolicy: IfNotPresent
           ports:

manifest/overlays/dev/kustomization.yaml

@@ -0,0 +1,10 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+  - ../../base
+patches:
+  - path: deployment.yaml
+images:
+  - name: demolearnacr.azurecr.io/demo_dev/product-list-app
+    newName: demolearnacr.azurecr.io/demo_dev/product-list-app
+    newTag: dev

my-app/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

my-app/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: my-app
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

my-app/templates/_helpers.tpl

@@ -0,0 +1,62 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "my-app.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "my-app.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "my-app.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "my-app.labels" -}}
+helm.sh/chart: {{ include "my-app.chart" . }}
+{{ include "my-app.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "my-app.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "my-app.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "my-app.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "my-app.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

my-app/templates/deployment.yaml

@@ -0,0 +1,24 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: my-app
+  labels:
+    app: my-app
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: my-app
+  template:
+    metadata:
+      labels:
+        app: my-app
+    spec:
+      containers:
+        - name: my-app
+          image:  "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: IfNotPresent
+          ports:
+            - containerPort: 5070
+      imagePullSecrets:
+        - name: my-secret

my-app/templates/service.yaml

@@ -0,0 +1,13 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: my-app
+spec:
+  #type: NodePort
+  selector:
+    app.kubernetes.io/name: my-app
+  ports:
+    - protocol: TCP
+      port: 5070
+      targetPort: 5070
+      # nodePort: 30100

my-app/values.yaml

@@ -0,0 +1,3 @@
+image:
+  repository: product-list-app
+  tag: latest