Dockerfile

# Stage 1: Build the Go application
FROM golang:1.22-alpine AS builder

# Set the working directory inside the container
WORKDIR /app

# Copy the go.mod and go.sum files first to utilize Docker cache efficiently
COPY go.mod go.sum ./

# Download dependencies
RUN go mod download

# Copy the rest of the application source code
COPY cmd/ ./cmd/
COPY pkg/ ./pkg/

# Build the Go application binary
RUN go build -o main ./cmd/main.go

# Stage 2: Create a small image with the compiled binary
FROM alpine:latest

# Install curl in the Alpine image
RUN apk add --no-cache curl

# Set the working directory inside the container
WORKDIR /app

# Copy the binary and script from the builder stage
COPY --from=builder /app/main .
COPY scripts/entrypoint.sh /app/entrypoint.sh

RUN chmod +x /app/entrypoint.sh

# Command to run the Go application
CMD ["./entrypoint.sh"]