Create Dockerfile

Dockerfile

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+# Stage 1: Build the application
+FROM golang:1.20 AS builder
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy go.mod and go.sum to download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the rest of the application code
+COPY . .
+
+# Build the application binary
+RUN go build -o go_jackett main.go
+
+# Stage 2: Create a minimal runtime container
+FROM debian:bullseye-slim
+
+# Set the working directory
+WORKDIR /app
+
+# Install essential packages (for running the app)
+RUN apt-get update && apt-get install -y ca-certificates && rm -rf /var/lib/apt/lists/*
+
+# Copy the binary and required directories from the builder stage
+COPY --from=builder /app/go_jackett /app/
+COPY --from=builder /app/.env /app/
+COPY --from=builder /app/persistence /app/persistence
+COPY --from=builder /app/temp /app/temp
+
+# Set the default environment variable (optional, can be overridden)
+ENV PORT=3000
+
+# Expose the application port
+EXPOSE 3000
+
+# Start the application
+CMD ["./go_jackett"]