update docker images

docker/fabio/Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:1.15-alpine AS build
+LABEL maintainer aynic.os <support+docker@asycn.io>
+ARG DOCKER_BUILD_DIR
+ARG GIT_AUTHOR_NAME
+ARG GIT_AUTHOR_EMAIL
+
+ENV GIT_AUTHOR_NAME=${GIT_AUTHOR_NAME}
+ENV GIT_AUTHOR_EMAIL=${GIT_AUTHOR_EMAIL}
+ENV GIT_COMMITTER_NAME=${GIT_AUTHOR_NAME}
+ENV GIT_COMMITTER_EMAIL=${GIT_AUTHOR_EMAIL}
+
+WORKDIR /go/src/github.com/fabiolb/fabio
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go test -mod=vendor -trimpath -ldflags "-s -w" ./...
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -mod=vendor -trimpath -ldflags "-s -w"
+
+FROM alpine:3.12 as master
+RUN apk update && apk add --no-cache ca-certificates
+COPY --from=build /src/fabio /usr/bin
+
+ADD fabio.properties /etc/fabio/fabio.properties
+EXPOSE 9998 9999
+ENTRYPOINT ["/usr/bin/fabio"]
+CMD ["-cfg", "/etc/fabio/fabio.properties"]