Use archlinuxjp/archlinux as base image

latest/Dockerfile

@@ -1,27 +1,23 @@
 ## -*- docker-image-name: "trileg/arch-base" -*-
-FROM base/archlinux:latest
-MAINTAINER Kensuke Kosaka <kosaka@trileg.net>
+FROM archlinuxjp/archlinux:latest
+MAINTAINER Kensuke Kosaka <k@trileg.net>
 
 RUN pacman -Syy --noconfirm > /dev/null
-RUN pacman -S archlinux-keyring --noconfirm > /dev/null
-RUN pacman -Syu --noconfirm &> /dev/null
-RUN ln -s /usr/lib/libncursesw.so.6 /usr/lib/libncursesw.so.5
-RUN pacman-db-upgrade > /dev/null
-RUN trust extract-compat
-
 
 # Add normal user who can escalate to root without a password
-RUN pacman -Syu --noconfirm base-devel &> /dev/null
 COPY patches/sudoers.patch /tmp/sudoers.patch
-RUN patch -u /etc/sudoers < /tmp/sudoers.patch && rm -f /tmp/sudoers.patch
-RUN chown root:root /etc/sudoers && chmod 440 /etc/sudoers
-RUN useradd -m -d /home/user -s /bin/bash -g users -G users,wheel user
+RUN pacman -Syu --noconfirm base-devel &> /dev/null && \
+  patch -u /etc/sudoers < /tmp/sudoers.patch && rm -f /tmp/sudoers.patch && \
+  chown root:root /etc/sudoers && chmod 440 /etc/sudoers && \
+  useradd -m -d /home/user -s /bin/bash -g users -G users,wheel user
+
+USER user
 
 # INSTALL pacaur
 ## Install git
-RUN pacman -Syu --noconfirm git > /dev/null
+RUN sudo pacman -Syu --noconfirm git > /dev/null
+
 ## Install cower
-USER user
 RUN curl -L -o /tmp/cower.tar.gz --silent https://aur.archlinux.org/cgit/aur.git/snapshot/cower.tar.gz && \
   tar -zxvf /tmp/cower.tar.gz -C /tmp/ > /dev/null && \
   cd /tmp/cower && \
@@ -30,20 +26,20 @@ RUN curl -L -o /tmp/cower.tar.gz --silent https://aur.archlinux.org/cgit/aur.git
   makepkg -sri --noconfirm &> /dev/null && \
   rm -rf /tmp/cower* && \
   cd /
-USER root
+
 ## Install expac
-RUN pacman -Syu --noconfirm expac > /dev/null
+RUN sudo pacman -Syu --noconfirm expac > /dev/null
+
 # Install pacaur
-USER user
 RUN curl -L -o /tmp/pacaur.tar.gz --silent https://aur.archlinux.org/cgit/aur.git/snapshot/pacaur.tar.gz && \
   tar -zxvf /tmp/pacaur.tar.gz -C /tmp/ > /dev/null && \
   cd /tmp/pacaur && \
   export PATH=/usr/bin/core_perl:$PATH && \
   makepkg -sri --noconfirm &> /dev/null && \
   rm -rf /tmp/pacaur* && \
   cd /
-USER root
 
+USER root
 
 RUN pacman -Scc --noconfirm > /dev/null
 ONBUILD RUN pacman -Syu --noconfirm &> /dev/null