updates

Dockerfile

@@ -1,36 +1,15 @@
-FROM ubuntu:zesty
+FROM debian:stretch
 MAINTAINER Andrey Arapov <andrey.arapov@nixaid.com>
 
 # To avoid problems with Dialog and curses wizards
-ENV DEBIAN_FRONTEND noninteractive
+ENV DEBIAN_FRONTEND=noninteractive
 
 RUN apt-get update
-RUN apt-get -y --no-install-recommends install keepass2 xdotool paxctl \
+RUN apt-get -y --no-install-recommends install keepass2 xdotool \
     && rm -rf /var/lib/apt/lists
 
-# make KeePass2 grsec friendly
-#
-# To build the Docker image, I currently had to disable the following grsec protections:
-# # grep -E "chroot_deny_chmod|chroot_deny_mknod|chroot_caps" /etc/sysctl.d/grsec.conf
-# kernel.grsecurity.chroot_deny_chmod = 0
-# kernel.grsecurity.chroot_deny_mknod = 0
-# kernel.grsecurity.chroot_caps = 0 (relates to a systemd package)
-#
-# m: Disable MPROTECT // grsec: denied RWX mmap of <anonymous mapping>
-# (runtime only, since xattrs are not preserved in Docker's final image)
-# RUN setfattr -n user.pax.flags -v "m" /usr/bin/mono-sgen
-#
-# (permanent change, by converting the binary headers PT_GNU_STACK into PT_PAX_FLAGS)
-# m: Disable MPROTECT // grsec: denied RWX mmap of <anonymous mapping>
-RUN paxctl -c -v -m /usr/bin/mono-sgen
-
-
-ENV USER user
-ENV UID 1000
-ENV HOME /home/$USER
-RUN useradd -u $UID -m -d $HOME -s /usr/sbin/nologin $USER
-
-WORKDIR $HOME
-USER $USER
+RUN useradd -u 1000 -m -d /home/user -s /usr/sbin/nologin user
 
+WORKDIR /home/user
+USER user
 ENTRYPOINT keepass2

docker-compose.yml

@@ -3,6 +3,7 @@ version: '2'
 services:
   keepass2:
     image: local/keepass2
+    build: .
     network_mode: bridge
     volumes:
       - /tmp/.X11-unix:/tmp/.X11-unix