Dockerfile

# Caddy server from source
# Inspired by 
# * https://hub.docker.com/r/sapk/caddy/
# * https://hub.docker.com/r/abiosoft/caddy/

FROM golang:alpine
LABEL caddy_version="dev" architecture="amd64"

RUN    apk -U --no-progress upgrade \
    && apk -U --force --no-progress add git \
    && git clone https://github.com/mholt/caddy.git /go/src/github.com/mholt/caddy \
    && cd /go/src/github.com/mholt/caddy \
    && git config --global user.email "caddy@caddyserver.com" \
    && git config --global user.name "caddy" \
    && git fetch origin pull/1316/head:websocket \
    && git checkout websocket \
    && git rebase origin/master \
    && cd /go \
    && go get -v ... \
    && mv /go/bin/caddy /usr/bin \
    && apk del --purge git \
    && rm -rf $GOPATH /var/cache/apk/*

WORKDIR /srv
COPY Caddyfile /etc/Caddyfile
COPY index.html /srv/index.html

EXPOSE 80 443 2015
VOLUME     ["/root/.caddy"]
ENTRYPOINT ["/usr/bin/caddy"]
CMD ["--conf", "/etc/Caddyfile", "--log", "stdout"]