feat: 김유진 과제제출 (#52)

Signed-off-by: 김유진 <eugene70kim@gmail.com>

eugene70/.gitignore

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+.idea/

eugene70/Dockerfile

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+# Dockerfile
+FROM golang:1.16 as builder
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o /my-web-service
+
+FROM scratch
+
+COPY --from=builder /my-web-service /my-web-service
+
+EXPOSE 8080
+
+CMD ["/my-web-service"]
+

eugene70/charts/Chart.yaml

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+apiVersion: v2
+name: my-web-service
+description: A Helm chart for my web service
+type: application
+version: 1.0.0

eugene70/charts/templates/_helpers.tpl

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+{{/*
+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 "helper.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 the name for the chart.
+*/}}
+{{- define "helper.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end -}}
+
+{{/*
+Create labels common for all resources.
+*/}}
+{{- define "helper.labels" -}}
+helm.sh/chart: {{ include "helper.chart" . }}
+{{ include "helper.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+{{- if .Values.nameOverride }}
+app.kubernetes.io/name: {{ .Values.nameOverride | quote }}
+{{- else }}
+app.kubernetes.io/name: {{ include "helper.name" . | quote }}
+{{- end }}
+app.kubernetes.io/instance: {{ .Release.Name | quote }}
+app.kubernetes.io/managed-by: {{ .Release.Service | quote }}
+{{- end -}}
+
+{{/*
+Create labels specific for selector.
+*/}}
+{{- define "helper.selectorLabels" -}}
+app.kubernetes.io/instance: {{ .Release.Name | quote }}
+app.kubernetes.io/name: {{ include "helper.name" . | quote }}
+{{- end -}}
+
+{{/*
+Expand the chart name.
+*/}}
+{{- define "helper.chart" -}}
+{{ .Chart.Name }}-{{ .Chart.Version }}
+{{- end -}}

eugene70/charts/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "helper.fullname" . }}
+  labels:
+    {{- include "helper.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "helper.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      labels:
+        {{- include "helper.selectorLabels" . | nindent 8 }}
+    spec:
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.name }}"
+          ports:
+            - containerPort: {{ .Values.service.port }}
+          readinessProbe:
+            httpGet:
+              path: /healthcheck
+              port: {{ .Values.service.port }}
+            initialDelaySeconds: 5
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /healthcheck
+              port: {{ .Values.service.port }}
+            initialDelaySeconds: 15
+            periodSeconds: 20

eugene70/charts/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  name: {{ include "helper.fullname" . }}
+  labels:
+    {{- include "helper.labels" . | nindent 4 }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - nodePort: {{ .Values.service.nodePort }}
+      port: {{ .Values.service.port }}
+      targetPort: {{ .Values.service.targetPort }}
+  selector:
+    {{- include "helper.selectorLabels" . | nindent 4 }}

eugene70/charts/values.yaml

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+replicaCount: 1
+
+image:
+  name: eugene70/my-web-service
+  tag: 1.0.0
+  pullPolicy: IfNotPresent
+
+service:
+  type: NodePort
+  nodePort: 30080
+  port: 8080
+  targetPort: 8080
+
+ingress:
+  enabled: false
+
+resources: {}

eugene70/go.mod

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+module my-web-service
+
+go 1.16
+
+require (
+)

eugene70/go.sum

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+github.com/go-chi/chi v1.5.4/go.mod h1:uaf8YgoFazUOkPBG7fxPftUylNumIev9awIWOENIuEg=

eugene70/main.go

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+package main
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+)
+
+func main() {
+	http.HandleFunc("/api/v1/", func(w http.ResponseWriter, r *http.Request) {
+		githubUsername := r.URL.Path[len("/api/v1/"):]
+		fmt.Fprintf(w, "Hello, %s!", githubUsername)
+	})
+
+	http.HandleFunc("/healthcheck", func(w http.ResponseWriter, r *http.Request) {
+		fmt.Fprintf(w, "OK")
+	})
+
+	port := "8080"
+	if fromEnv := os.Getenv("PORT"); fromEnv != "" {
+		port = fromEnv
+	}
+
+	fmt.Printf("Starting server on port %s\n", port)
+	if err := http.ListenAndServe(":"+port, nil); err != nil {
+		fmt.Printf("Error starting server: %s\n", err)
+	}
+}