Dockerfile

############################	
# STEP 1 build executable binary	
############################	
FROM golang:1.14 AS builder	

ADD . /go/src/github.com/sandeepone/mysql-manticore	

RUN cd /go/src/github.com/sandeepone/mysql-manticore \	
 && COMMIT_SHA=$(git rev-parse --short HEAD) \	
 && CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-s -w  \	
    -X main.version=0.8.0 \	
    -X main.revision=${COMMIT_SHA}" \	
    -a -tags netgo -installsuffix netgo -o mysql-manticore cmd/mysql-manticore/main.go	

############################	
# STEP 2 build a certs image	
############################	

# Alpine certs	
FROM alpine:3.11 as alpine	

RUN apk update && apk add --no-cache ca-certificates tzdata && update-ca-certificates	

# Create appuser	
ENV USER=appuser	
ENV UID=10001	

# See https://stackoverflow.com/a/55757473/12429735	
RUN adduser \	
    --disabled-password \	
    --gecos "" \	
    --home "/nonexistent" \	
    --shell "/sbin/nologin" \	
    --no-create-home \	
    --uid "${UID}" \	
    "${USER}"	

############################	
# STEP 3 build a release image	
############################	
FROM scratch	
MAINTAINER Sandeep Sangamreddi <sandeepone@gmail.com>	

# Import from builder.	
COPY --from=alpine /usr/share/zoneinfo /usr/share/zoneinfo	
COPY --from=alpine /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/	
COPY --from=alpine /etc/passwd /etc/passwd	
COPY --from=alpine /etc/group /etc/group	

COPY --from=builder /go/src/github.com/sandeepone/mysql-manticore/mysql-manticore /usr/bin/	
COPY etc/river.toml /etc/mysql-manticore/river.toml	
COPY etc/dict /etc/mysql-manticore/dict	

EXPOSE 8080	

# Use an unprivileged user.	
USER appuser:appuser	

ENTRYPOINT ["mysql-manticore", "-config", "/etc/mysql-manticore/river.toml"]