Dockerfile

FROM golang:1.9-alpine
RUN apk update && apk add git
# Copy local package to the containers workspace
ADD . /go/src/github.com/ericsalerno/goemailvalidator
RUN go get -u github.com/golang/dep/cmd/dep

WORKDIR /go/src/github.com/ericsalerno/goemailvalidator
RUN dep ensure

# Build package in container
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -tags netgo -ldflags '-w -extldflags "-static"'

FROM alpine
COPY --from=0 /go/src/github.com/ericsalerno/goemailvalidator/goemailvalidator /goemailvalidator
# Download blacklist.conf file
ADD https://raw.githubusercontent.com/martenson/disposable-email-domains/master/disposable_email_blacklist.conf /blacklist.conf

# Set container entrypoint to compiled binary
ENTRYPOINT /goemailvalidator

# Expose port 8081
EXPOSE 8081