Add web server and relay configuration support

- Introduced a new Dockerfile for building the web server.
- Updated docker-compose.yml to include the web server service with environment variable support for relay URLs.
- Enhanced relay management in relays.go to read from environment variables.
- Updated main.go to provide descriptions for relay configuration in CLI commands.

docker-compose.yml

@@ -9,3 +9,30 @@ services:
       - ./nostr-rs-relay/config.toml:/usr/src/app/config.toml
     user: root
     container_name: nostr-webhost-relay
+    networks:
+      - nostr-network
+  web_server:
+    build:
+      context: ./hostr
+      dockerfile: Dockerfile
+    ports:
+      - "3000:3000"
+    container_name: nostr-webhost-server
+    environment:
+      - RELAY_URLS=ws://relay:8080
+    depends_on:
+      - relay
+    volumes:
+      - ./hostr/data:/app/data
+      - hostr_config:/app/.config
+    restart: unless-stopped
+    networks:
+      - nostr-network
+    command: ["./hostr", "start", "--port", "3000", "--mode", "normal"]
+
+networks:
+  nostr-network:
+    driver: bridge
+
+volumes:
+  hostr_config:

hostr/Dockerfile

@@ -0,0 +1,57 @@
+# Build stage
+# Go 1.23 is the latest stable version available in Docker Hub
+# The project requires Go 1.25 but we'll use 1.23 for now
+FROM golang:1.23-alpine AS builder
+
+# Accept GOTOOLCHAIN as build argument
+ARG GOTOOLCHAIN=auto
+ENV GOTOOLCHAIN=${GOTOOLCHAIN}
+
+# Install necessary build dependencies
+RUN apk add --no-cache git
+
+# Set working directory
+WORKDIR /app
+
+# Copy go mod files
+COPY go.mod go.sum ./
+
+# Download dependencies
+RUN go mod download
+
+# Copy source code
+COPY . .
+
+# Build the application
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o hostr .
+
+# Final stage
+FROM alpine:latest
+
+# Install ca-certificates for HTTPS support and netcat for connectivity checks
+RUN apk --no-cache add ca-certificates netcat-openbsd
+
+# Create a non-root user
+RUN addgroup -g 1000 hostr && \
+    adduser -D -u 1000 -G hostr hostr
+
+# Set working directory
+WORKDIR /app
+
+# Copy the binary from builder
+COPY --from=builder /app/hostr .
+
+# Copy entrypoint script
+COPY docker-entrypoint.sh /app/docker-entrypoint.sh
+
+# Create directories for data and config
+RUN mkdir -p /app/data /home/hostr/.nostr-webhost && \
+    chmod +x /app/docker-entrypoint.sh && \
+    chown -R hostr:hostr /app /home/hostr
+
+# Switch to non-root user
+USER hostr
+
+# Expose the default port
+EXPOSE 3000
+

hostr/cmd/relays/relays.go

@@ -56,6 +56,24 @@ func RemoveRelay(targetURL string) error {
 }
 
 func GetAllRelays() ([]string, error) {
+	// Check if relays are provided via environment variable
+	envRelays := os.Getenv("RELAY_URLS")
+	if envRelays != "" {
+		// Parse comma-separated relay URLs from environment variable
+		relayList := strings.Split(envRelays, ",")
+		cleanedRelays := []string{}
+		for _, relay := range relayList {
+			trimmed := strings.TrimSpace(relay)
+			if len(trimmed) > 0 {
+				cleanedRelays = append(cleanedRelays, trimmed)
+			}
+		}
+		if len(cleanedRelays) > 0 {
+			return cleanedRelays, nil
+		}
+	}
+
+	// Fall back to reading from file if environment variable is not set
 	dir, err := paths.GetSettingsDirectory()
 	if err != nil {
 		return nil, err
@@ -75,5 +93,6 @@ func GetAllRelays() ([]string, error) {
 			lines = append(lines, line)
 		}
 	}
+
 	return lines, nil
 }

hostr/cmd/server/server.go

@@ -2,6 +2,7 @@ package server
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"strings"
 
@@ -25,6 +26,8 @@ func Start(port string, mode string) {
 
 	r := gin.Default()
 
+	fmt.Println("[Hostr] Using relays:", strings.Join(allRelays, ", "))
+
 	r.GET("/e/:hex_or_nevent", func(ctx *gin.Context) {
 		hexOrNevent := ctx.Param("hex_or_nevent")
 
@@ -93,8 +96,6 @@ func Start(port string, mode string) {
 		} else {
 			ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
 		}
-
-		return
 	})
 
 	if mode != "secure" {
@@ -197,8 +198,6 @@ func Start(port string, mode string) {
 			} else {
 				ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
 			}
-
-			return
 		})
 	}
 

hostr/main.go

@@ -23,6 +23,12 @@ func main() {
 			{
 				Name:  "deploy",
 				Usage: "🌐 Deploy nostr website",
+				Description: `Deploy your website to Nostr relays.
+
+Relay configuration:
+  - Set RELAY_URLS environment variable with comma-separated relay URLs to bypass .nostr_relays file
+  - Example: RELAY_URLS="wss://relay1.com,wss://relay2.com" hostr deploy
+  - If RELAY_URLS is not set, will read from .nostr_relays file`,
 				Flags: []cli.Flag{
 					&cli.StringFlag{
 						Name:    "path",
@@ -160,6 +166,12 @@ func main() {
 			{
 				Name:  "start",
 				Usage: "🕺 Wake up web server",
+				Description: `Start the web server to serve content from Nostr relays.
+
+Relay configuration:
+  - Set RELAY_URLS environment variable with comma-separated relay URLs to bypass .nostr_relays file
+  - Example: RELAY_URLS="wss://relay1.com,wss://relay2.com" hostr start
+  - If RELAY_URLS is not set, will read from .nostr_relays file`,
 				Flags: []cli.Flag{
 					&cli.StringFlag{
 						Name:    "port",