Just a single latest image based on Alpine.

ARG GOSU_VERSION=1.12

ARG ALPINE_VERSION=3.12

FROM alpine:$ALPINE_VERSION as scratch

ARG GOSU_VERSION

ENV GOSU_VERSION=$GOSU_VERSION

RUN set -eux; \

	\

	apk add --no-cache --virtual .gosu-deps \

        ca-certificates \

		dpkg \

		gnupg \

	; \

	\

	dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \

	wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch"; \

	wget -O /usr/local/bin/gosu.asc "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc"; \

	\

# verify the signature

	export GNUPGHOME="$(mktemp -d)"; \

	gpg --keyserver ha.pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \

	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \

    command -v gpgconf && gpgconf --kill all || :; \

	\

	chmod +x /usr/local/bin/gosu; \

# verify that the binary works

    gosu --version; \

	gosu nobody true;

FROM alpine:$ALPINE_VERSION

ARG GOSU_VERSION

ENV GOSU_VERSION $GOSU_VERSION

COPY --from=scratch /usr/local/bin/gosu /usr/local/bin/

# Dockerized gosu

> Docker images with gosu installed.

> Alpine Docker image with gosu installed.

## Usage

The image is based on the latest Alpine image with just `gosu` installed. If you

wish to use a different image as a base then you can just copy the binary from

this image so:

```

FROM adarnimrod/gosu as gosu

FROM alpine:latest

COPY --from=gosu /usr/local/bin/gosu /usr/local/bin/

```

## License