dockerfile for josh

gistfile1.txt

# Start from the official Go image to build your application
FROM golang:1.21 as builder

# Set the Current Working Directory inside the container
WORKDIR /app

# Copy go mod and sum files
COPY go.mod go.sum ./

# Download all dependencies. Dependencies will be cached if the go.mod and go.sum files are not changed
RUN go mod download

# Copy the source from the current directory to the Working Directory inside the container
COPY . .

# Build the Go app
RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o myapp ./cmd

# Start a new stage from scratch
FROM alpine:latest

# Install ca-certificates
RUN apk --no-cache add ca-certificates

WORKDIR /root/

# Copy the Pre-built binary file from the previous stage
COPY --from=builder /app/myapp .

# Command to run the executable
CMD ["./myapp"]