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40
.gitea/workflows/dockerimage.yaml
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40
.gitea/workflows/dockerimage.yaml
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---
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# template source: https://github.com/bretfisher/docker-build-workflow/blob/main/templates/call-docker-build.yaml
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name: Docker Build
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on:
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push:
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branches:
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- main
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paths-ignore:
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- 'README.md'
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- 'argocd/**'
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# cancel any previously-started, yet still active runs of this workflow on the same branch
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concurrency:
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group: ${{ github.ref }}-${{ github.workflow }}
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cancel-in-progress: true
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jobs:
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build-and-push-image:
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runs-on: ubuntu-latest
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steps:
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- name: Login to Gitea Container Registry
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uses: docker/login-action@v3
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with:
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registry: gitea.arcodange.duckdns.org
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username: ${{ github.actor }}
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password: ${{ secrets.PACKAGES_TOKEN }}
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- name: git checkout
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uses: actions/checkout@v4
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- name: Build and push image to Gitea Container Registry
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run: |-
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TAGS="latest ${{ github.ref_name }}"
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docker build -t app .
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for TAG in $TAGS; do
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docker tag app gitea.arcodange.duckdns.org/${{ github.repository }}:$TAG
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docker push gitea.arcodange.duckdns.org/${{ github.repository }}:$TAG
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done
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36
Dockerfile
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36
Dockerfile
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# Utiliser une image officielle de Go pour construire l'application
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FROM golang:1.20-alpine AS builder
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# Installer les dépendances pour PostgreSQL
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RUN apk add --no-cache git
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# Créer le répertoire de travail
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WORKDIR /app
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# Copier le module go et télécharger les dépendances
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COPY go.mod go.sum ./
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RUN go mod download
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# Copier tout le code de l'application dans le conteneur
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COPY . .
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# Compiler l'application en un binaire statique
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RUN go build -o app .
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# Utiliser une image alpine légère pour l'exécution
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FROM alpine:latest
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# Installer les dépendances requises pour PostgreSQL dans le conteneur
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RUN apk --no-cache add ca-certificates
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# Créer le répertoire de l'application
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WORKDIR /root/
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# Copier le binaire compilé depuis l'image de build
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COPY --from=builder /app/app .
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# Exposer le port de l'application
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EXPOSE 8080
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# Définir la commande pour démarrer l'application
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CMD ["./app"]
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@@ -1,3 +1,10 @@
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# webapp
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simple app for testing purpose
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simple web app with a database connection for testing purpose
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return 42 + the number in input
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> [!NOTE]
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> code generated with chat gpt
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- [ ] Connect through pgbouncer
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- [ ] Credentials generated with Hashicorp Vault
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5
go.mod
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5
go.mod
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module gitea.arcodange.duckdns.org/arcodange-org/webapp
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go 1.20
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require github.com/lib/pq v1.10.9 // indirect
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2
go.sum
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2
go.sum
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github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
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github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
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132
main.go
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132
main.go
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package main
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import (
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"database/sql"
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"fmt"
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"html/template"
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"log"
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"net/http"
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"os"
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"strconv"
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_ "github.com/lib/pq" // PostgreSQL driver
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)
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var db *sql.DB // Global database connection
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// dbConnection initializes the database connection.
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func dbConnection() (*sql.DB, error) {
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connStr := os.Getenv("DATABASE_URL") // You should set this env var, e.g., postgres://username:password@localhost/dbname?sslmode=disable
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return sql.Open("postgres", connStr)
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}
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// indexHandler serves the HTML form for the query.
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func indexHandler(w http.ResponseWriter, r *http.Request) {
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tmpl := `
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<!DOCTYPE html>
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<html>
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<head>
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<title>Query Form</title>
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<style>
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body {
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font-family: Arial, sans-serif;
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background-color: #f4f4f4;
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text-align: center;
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margin-top: 50px;
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}
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form {
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margin: 0 auto;
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max-width: 300px;
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padding: 20px;
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background-color: white;
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border-radius: 10px;
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box-shadow: 0px 0px 10px 0px rgba(0, 0, 0, 0.1);
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}
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input[type="number"], input[type="submit"] {
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width: 100%;
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padding: 10px;
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margin: 5px 0;
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border: 1px solid #ccc;
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border-radius: 5px;
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}
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input[type="submit"] {
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background-color: #5cb85c;
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color: white;
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border: none;
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cursor: pointer;
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}
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input[type="submit"]:hover {
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background-color: #4cae4c;
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}
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</style>
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</head>
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<body>
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<h1>Query Form</h1>
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<form action="/query" method="get">
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<label for="param">Enter a number:</label>
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<input type="number" id="param" name="param" required>
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<input type="submit" value="Submit">
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</form>
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</body>
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</html>
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`
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t := template.Must(template.New("form").Parse(tmpl))
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t.Execute(w, nil)
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}
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// selectHandler handles HTTP requests and executes a SQL query.
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func selectHandler(w http.ResponseWriter, r *http.Request) {
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// Get the 'param' query parameter
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paramStr := r.URL.Query().Get("param")
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if paramStr == "" {
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http.Error(w, "Missing 'param' query parameter", http.StatusBadRequest)
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return
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}
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// Convert the param to an integer
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param, err := strconv.Atoi(paramStr)
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if err != nil {
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http.Error(w, "Invalid 'param' query parameter. Must be an integer.", http.StatusBadRequest)
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return
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}
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// Prepare the SQL query to prevent SQL injection
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query := "SELECT 42 + $1"
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// Execute the query with the provided parameter
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var result int
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err = db.QueryRow(query, param).Scan(&result)
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if err != nil {
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log.Printf("Failed to execute query: %v", err)
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http.Error(w, "Internal Server Error", http.StatusInternalServerError)
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return
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}
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// Return the result in a simple HTML response
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fmt.Fprintf(w, "<h1>Result: %d</h1>", result)
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}
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func main() {
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var err error
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// Initialize the database connection once at startup
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db, err = dbConnection()
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if err != nil {
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log.Fatalf("Failed to connect to the database: %v", err)
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}
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defer db.Close()
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// Define the handler for the `/` route (serves HTML form)
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http.HandleFunc("/", indexHandler)
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// Define the handler for the `/query` route (executes SQL query)
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http.HandleFunc("/query", selectHandler)
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// Start the HTTP server
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port := ":8080"
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log.Printf("Server starting on port %s\n", port)
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err = http.ListenAndServe(port, nil)
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if err != nil {
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log.Fatalf("Server failed to start: %v", err)
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}
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}
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