ARG ALPINE_TAG=3.15 FROM alpine:$ALPINE_TAG ARG ALPINE_TAG LABEL maintainer="Spritsail " \ org.label-schema.vendor="Spritsail" \ org.label-schema.name="Alpine Linux" \ org.label-schema.url="https://github.com/gliderlabs/docker-alpine" \ org.label-schema.description="Alpine Linux base image" \ org.label-schema.version=${ALPINE_TAG} # Override shell for sh-y debugging goodness SHELL ["/bin/sh", "-exc"] COPY skel/ / ADD https://alpine.spritsail.io/spritsail-alpine.rsa.pub /etc/apk/keys ENV ENV="/etc/profile" RUN sed -i '1ihttps://alpine.spritsail.io/spritsail' /etc/apk/repositories \ && apk --no-cache add \ su-exec \ tini ENTRYPOINT ["/sbin/tini" , "--"]