fix: version update for container testing, other fixes

This commit updates the ubuntu version to 22.04 (from 18.04). As part of
these changes, I also made some fixes:

* correctly set an error code if chroot provisioning fails
* resequence some of the package install order, trying to handle locale
  issues more robustly
* improved error messaging

utils/build-testing-container.sh

@@ -7,18 +7,19 @@ CONTAINER_TAG=dgl-test
 
 cd `dirname "$0"`/..
 docker build --tag $CONTAINER_TAG -f utils/testing-container/Dockerfile .
-if [ $? -ne 0 ]; then echo "Aborting after docker build!" && exit 1; fi
+if [ $? -ne 0 ]; then echo "docker build failed, aborting!" && exit 1; fi
 
+echo "Provisioning chroot..."
 if [ "$1" = '--no-tty' ]; then
     docker run --privileged $CONTAINER_TAG --provision-chroot
 else
     docker run -it --privileged $CONTAINER_TAG --provision-chroot
 fi
 
 if [ $? -ne 0 ]; then
-    echo "Aborting after chroot script!" && exit 1;
+    echo "chroot provisioning failed, aborting!" && exit 1;
 fi
 
 CID=$(docker ps -lq)
 docker commit $CID $CONTAINER_TAG
-echo "Container commited as '$CONTAINER_TAG'!"
+echo "Build succeeded! Final container commited as '$CONTAINER_TAG'."

utils/provision-chroot.sh

@@ -25,35 +25,54 @@ CDEV_USER=$(id -u crawl-dev)
 if [ $? -ne 0 ]; then echo "No 'crawl-dev' user!"; exit 1; fi
 CDEV_GROUP=$(id -g crawl-dev)
 
-# must match the outer distribution.
-debootstrap bionic $DGL_CHROOT
+# version here must match the outer distribution. `jammy` = ubuntu 22.04
+# note, this command is not really rerunnable without resetting the chroot
+# directory...
+debootstrap jammy $DGL_CHROOT
+if [ $? -ne 0 ]; then
+    echo "Provisioning failed in debootstrap."
+    exit 1
+fi
 cp /etc/resolv.conf $DGL_CHROOT/etc/resolv.conf
 cp /etc/apt/sources.list $DGL_CHROOT/etc/apt/
 
 # these bind mounts would need to be manually added to the fstab in some setups
-mount --bind /proc/ $DGL_CHROOT/proc/
-mount --bind /dev/pts/ $DGL_CHROOT/dev/pts/
+if [ ! -e $DGL_CHROOT/proc/ ]; then
+    mount --bind /proc/ $DGL_CHROOT/proc
+fi
+if [ ! -e $DGL_CHROOT/dev/pts ]; then
+    mount --bind /dev/pts/ $DGL_CHROOT/dev/pts/
+fi
 
 cat << EOF | chroot $DGL_CHROOT/
 # minimal package list for running crawl and doing some basic maintenance; you
 # may want to curate this further.
-apt-get update && apt-get -y install bzip2 python3-minimal ncurses-term locales locales-all sqlite3 libpcre3 liblua5.1-0 autoconf build-essential lsof bison libncursesw5-dev libsqlite3-dev flex sudo libbot-basicbot-perl vim
-sed -i -e "s/# $LANG.*/$LANG.UTF-8 UTF-8/" /etc/locale.gen
-dpkg-reconfigure --frontend=noninteractive locales
-update-locale LANG=$LANG
+apt-get update && \
+apt-get -y install locales locales-all && \
+sed -i -e "s/# $LANG.*/$LANG.UTF-8 UTF-8/" /etc/locale.gen && \
+dpkg-reconfigure --frontend=noninteractive locales && \
+update-locale LANG=$LANG && \
+apt-get -y install bzip2 python3-minimal ncurses-term sqlite3 libpcre3 liblua5.1-0 autoconf build-essential lsof bison libncursesw5-dev libsqlite3-dev flex sudo libbot-basicbot-perl vim && \
 # match the uids to the containing system
-groupadd crawl -g $CRAWL_GROUP
-groupadd crawl-dev -g $CDEV_GROUP
-useradd crawl -u $CRAWL_USER -g $CRAWL_GROUP
+groupadd crawl -g $CRAWL_GROUP && \
+groupadd crawl-dev -g $CDEV_GROUP && \
+useradd crawl -u $CRAWL_USER -g $CRAWL_GROUP && \
 useradd crawl-dev -u $CDEV_USER -g $CDEV_GROUP
 EOF
 
+if [ $? -ne 0 ]; then
+    echo "Provisioning failed while installing packages."
+    exit 1
+fi
+
 # In order for the webtiles server to work when chrooted, it needs access to
 # any packages that are dynamically imported. In general this is very few, but
 # Tornado versions >3 rely heavily on dynamic imports. So we copy it into the
 # chroot from outside.
 # An alternative would be to install a full python setup into the chroot,
-# including this package, but this is extremely heavy.
+# including this package, but this is extremely heavy. Another alternative might
+# be to simply copy the outer python library in (though note the python-minimal
+# install above). However, we do want tornado to exactly match...
 #
 # I'm not sure if this is a reliable recipe for finding package locations in
 # general, but it seems to work for tornado.

utils/testing-container/Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:18.04
+FROM ubuntu:22.04
 
 # See README.md for what this does and why
 
@@ -12,9 +12,17 @@ ARG DEBIAN_FRONTEND=noninteractive
 ARG TERM=dumb
 
 # basic prerequisites
+RUN apt-get update
+RUN apt-get install -y locales locales-all
+ENV LANG=en_US.UTF-8
+RUN sed -i -e "s/# $LANG.*/$LANG.UTF-8 UTF-8/" /etc/locale.gen \
+    && dpkg-reconfigure --frontend=noninteractive locales \
+    && update-locale LANG=$LANG
+
 # TODO: actually set up ccache, this just installs it
-RUN apt-get update && apt-get install -y sudo git build-essential autoconf automake bison libncursesw5-dev flex liblua5.1-0-dev libsqlite3-dev libz-dev locales vim locales-all pkg-config python3 python3-pip python3-yaml ccache libpng-dev sqlite3 libpcre3 libpcre3-dev apache2 advancecomp pngcrush debootstrap openssh-server curl \
-    && pip3 install tornado \
+RUN apt-get install -y sudo git build-essential autoconf automake bison libncursesw5-dev flex liblua5.1-0-dev libsqlite3-dev libz-dev vim pkg-config python3 python3-pip python3-yaml ccache libpng-dev sqlite3 libpcre3 libpcre3-dev apache2 advancecomp pngcrush debootstrap openssh-server curl
+
+RUN pip3 install tornado \
     && ln -s /usr/bin/python3 /usr/bin/python \
     && useradd -m crawl \
     && useradd -m crawl-dev \
@@ -27,10 +35,6 @@ RUN apt-get update && apt-get install -y sudo git build-essential autoconf autom
     && usermod -G crawl-dev -a root \
     && usermod -G crawl-dev -a www-data
 
-ENV LANG=en_US.UTF-8
-RUN sed -i -e "s/# $LANG.*/$LANG.UTF-8 UTF-8/" /etc/locale.gen \
-    && dpkg-reconfigure --frontend=noninteractive locales \
-    && update-locale LANG=$LANG
 
 # allow crawl-dev to run various things with sudo without a password. These
 # permissions may be too open for a production server.

utils/testing-container/docker-entrypoint.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 if [ "$1" = '--provision-chroot' ]; then
     /home/crawl-dev/dgamelaunch-config/utils/provision-chroot.sh
-    exit 0
+    exit $?
 fi
 
 if [ -d "/home/crawl/DGL/proc/" ]; then