[helm] feat: add helm hellok8s resource yaml.

Author: guangzhengli

hello-helm/Dockerfile

@@ -0,0 +1,16 @@
+# Dockerfile
+FROM golang:1.16-buster AS builder
+RUN mkdir /src
+ADD . /src
+WORKDIR /src
+
+RUN go env -w GO111MODULE=auto
+RUN go build -o main .
+
+FROM gcr.io/distroless/base-debian10
+
+WORKDIR /
+
+COPY --from=builder /src/main /main
+EXPOSE 3000
+ENTRYPOINT ["/main"]

hello-helm/templates/hellok8s-configmaps.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 kind: ConfigMap
 metadata:
-  name: hellok8s-config
+  name: {{ .Values.application.name }}-config
 data:
-  DB_URL: "http://DB_ADDRESS_DEV"
+  DB_URL: {{ .Values.application.hellok8s.database.url }}

hello-helm/templates/hellok8s-deployment.yaml

@@ -1,9 +1,9 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: hellok8s-deployment
+  name: {{ .Values.application.name }}-deployment
 spec:
-  replicas: 3
+  replicas: {{ .Values.application.hellok8s.replicas }}
   selector:
     matchLabels:
       app: hellok8s
@@ -13,11 +13,20 @@ spec:
         app: hellok8s
     spec:
       containers:
-        - image: guangzhengli/hellok8s:v4
+        - image: {{ .Values.application.hellok8s.image }}
           name: hellok8s-container
           env:
             - name: DB_URL
               valueFrom:
                 configMapKeyRef:
-                  name: hellok8s-config
-                  key: DB_URL
+                  name: {{ .Values.application.name }}-config
+                  key: DB_URL
+            - name: DB_PASSWORD
+              valueFrom:
+                secretKeyRef:
+                  name: {{ .Values.application.name }}-secret
+                  key: DB_PASSWORD
+            - name: NAMESPACE
+              value: {{ .Release.Namespace }}
+            - name: MESSAGE
+              value: {{ .Values.application.hellok8s.message }}

hello-helm/templates/hellok8s-secret.yaml

@@ -0,0 +1,7 @@
+# hellok8s-secret.yaml
+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ .Values.application.name }}-secret
+data:
+  DB_PASSWORD: {{ .Values.application.hellok8s.database.password | b64enc }}

hello-helm/templates/ingress.yaml

@@ -1,7 +1,7 @@
 apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
-  name: hello-ingress
+  name: {{ .Values.application.name }}-ingress
   annotations:
     # We are defining this annotation to prevent nginx
     # from redirecting requests to `https` for now

hello-helm/templates/nginx-deployment.yaml

@@ -3,7 +3,7 @@ kind: Deployment
 metadata:
   name: nginx-deployment
 spec:
-  replicas: 2
+  replicas: {{ .Values.application.nginx.replicas }}
   selector:
     matchLabels:
       app: nginx
@@ -13,5 +13,5 @@ spec:
         app: nginx
     spec:
       containers:
-      - image: nginx
+      - image: {{ .Values.application.nginx.image }}
         name: nginx-container