dunst-docker

Dockerfile

FROM alpine

RUN apk add --no-cache \
        cairo \
        dbus \
        glib \
        gtk+3.0 \
        libxdg-basedir \
        libxft \
        libxinerama \
        libxrandr \
        libxscrnsaver \
        pango \
 && apk add --no-cache --virtual dunstbuild \
        cairo-dev \
        dbus-dev \
        gcc \
        git \
        glib-dev \
        gtk+3.0-dev \
        libxdg-basedir-dev \
        libxft-dev \
        libxinerama-dev \
        libxrandr-dev \
        libxscrnsaver-dev \
        make \
        musl-dev \
        pango-dev \
 && git clone https://github.com/dunst-project/dunst /tmp/dunst \
 && sed -i 's/-g//g' /tmp/dunst/config.mk \
 && make -C /tmp/dunst -j $(nproc) all install \
 && rm -rf /tmp/dunst \
 && apk del --purge dunstbuild

ADD entrypoint.sh /srv/entrypoint

ENTRYPOINT ["/srv/entrypoint"]

entrypoint.sh

#!/bin/sh

export USER_UID=${USER_UID:-1000}
export USER_GID=${USER_GID:-1000}
export USER_NAME=${USER_NAME:-dunstuser}

id -g $USER_NAME 2>/dev/null >/dev/null || addgroup   -g $USER_GID $USER_NAME
id -u $USER_NAME 2>/dev/null >/dev/null || adduser -D -u $USER_UID -G $USER_NAME $USER_NAME

su $USER_NAME -s /bin/sh -c "/usr/local/bin/dunst -conf /tmp/dunstrc $*"

run.sh

#!/bin/bash

IMAGE=bebehei/dunst
XSOCK=/tmp/.X11-unix

[ -z "${DBUS_SESSION_BUS_ADDRESS}" ] && echo '$DBUS_SESSION_BUS_ADDRESS missing' && exit 1
[ -z "${DISPLAY}" ] && echo '\$DISPLAY missing' && exit 1

# Build image on the fly, if not available yet
docker image inspect "${IMAGE}" &>/dev/null || ([ -f Dockerfile ] && docker build -t "${IMAGE}" .)

XAUTH=$(mktemp)

DBUS_PATH=$(echo ${DBUS_SESSION_BUS_ADDRESS} | cut -d = -f 2)

touch ~/.config/dunst/dunstrc

xauth nlist :0 | sed -e 's/^..../ffff/' | xauth -f ${XAUTH} nmerge -

docker run -it --rm \
	--cap-add=SYS_ADMIN \
	--env="USER_UID=$(id -u)" \
	--env="USER_GID=$(id -g)" \
	--env="USER_NAME=$(id -un)" \
	--env="DISPLAY" \
	--env="DBUS_SESSION_BUS_ADDRESS" \
	--env="XAUTHORITY=${XAUTH}" \
	--volume=${DBUS_PATH}:${DBUS_PATH} \
	--volume=${XSOCK}:${XSOCK} \
	--volume=${XAUTH}:${XAUTH} \
	--volume=$HOME/.config/dunst/dunstrc:/tmp/dunstrc:ro \
	--volume=/usr/share/icons:/usr/share/icons:ro \
	--volume=/usr/share/fonts:/usr/share/fonts:ro \
	${IMAGE} $*

rm ${XAUTH}