Go app deployment with Dockerfile

# Builder
FROM golang:latest AS builder
WORKDIR /app

# download the dependencies dependencies first so that they can be cached.
COPY go.mod go.sum./
RUN go mod download

# copy the source code and build the go app
COPY..
RUN go build -o main.

# Runner
FROM alpine:latest
WORKDIR /root
COPY --from=builder /app/main.

# download the tool needed to run the app
RUN apk update
RUN apk add libc6-compat

EXPOSE $PORT
CMD ["/root/main"]

Caution

Remember to install libc6-compat other wise your container may not issue CMD successfully

In your Dockerfile:

RUN apk update
RUN apk add libc6-compat