Add Dockerfile

.dockerignore

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+**
+
+!config
+!formatter
+!*.go
+!go.mod
+!sample-config.toml
+!docker-entrypoint.sh

Dockerfile

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+FROM alpine:3.12 AS permissions-giver
+
+# Make sure docker-entrypoint.sh is executable, regardless of the build host.
+WORKDIR /out
+COPY docker-entrypoint.sh .
+RUN chmod +x docker-entrypoint.sh
+
+FROM golang:1.14-alpine3.12 AS builder
+
+# Build wuzz
+WORKDIR /out
+COPY . .
+RUN go build .
+
+FROM alpine:3.12 AS organizer
+
+# Prepare executables
+WORKDIR /out
+COPY --from=builder /out/wuzz .
+COPY --from=permissions-giver /out/docker-entrypoint.sh .
+
+FROM alpine:3.12 AS runner
+WORKDIR /wuzz
+COPY --from=organizer /out /usr/local/bin
+ENTRYPOINT [ "docker-entrypoint.sh" ]

docker-entrypoint.sh

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+#!/bin/sh
+set -e
+
+if [ "${1#-}" != "${1}" ] || [ -z "$(command -v "${1}")" ]; then
+  sleep 0.01
+  set -- wuzz "$@"
+fi
+
+exec "$@"