mailinabox/setup/management.sh

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#!/bin/bash
source setup/functions.sh
echo "Installing Mail-in-a-Box system management daemon..."
# DEPENDENCIES
# We used to install management daemon-related Python packages
# directly to /usr/local/lib. We moved to a virtualenv because
# these packages might conflict with apt-installed packages.
# We may have a lingering version of acme that conflcits with
# certbot, which we're about to install below, so remove it
# first. Once acme is installed by an apt package, this might
# break the package version and `apt-get install --reinstall python3-acme`
# might be needed in that case.
while [ -d /usr/local/lib/python3.4/dist-packages/acme ]; do
pip3 uninstall -y acme;
done
# duplicity is used to make backups of user data.
#
# virtualenv is used to isolate the Python 3 packages we
# install via pip from the system-installed packages.
#
# certbot installs EFF's certbot which we use to
# provision free TLS certificates.
apt_install duplicity python-pip virtualenv certbot
# b2sdk is used for backblaze backups.
# boto is used for amazon aws backups.
# Both are installed outside the pipenv, so they can be used by duplicity
hide_output pip3 install --upgrade b2sdk boto
# Create a virtualenv for the installation of Python 3 packages
# used by the management daemon.
inst_dir=/usr/local/lib/mailinabox
mkdir -p $inst_dir
venv=$inst_dir/env
if [ ! -d $venv ]; then
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hide_output virtualenv -ppython3 $venv
fi
# Upgrade pip because the Ubuntu-packaged version is out of date.
hide_output $venv/bin/pip install --upgrade pip
# Install other Python 3 packages used by the management daemon.
# The first line is the packages that Josh maintains himself!
# NOTE: email_validator is repeated in setup/questions.sh, so please keep the versions synced.
hide_output $venv/bin/pip install --upgrade \
rtyaml "email_validator>=1.0.0" "exclusiveprocess" \
flask dnspython python-dateutil \
qrcode[pil] pyotp \
"idna>=2.0.0" "cryptography==2.2.2" boto psutil postfix-mta-sts-resolver b2sdk
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# CONFIGURATION
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# Create a backup directory and a random key for encrypting backups.
mkdir -p $STORAGE_ROOT/backup
if [ ! -f $STORAGE_ROOT/backup/secret_key.txt ]; then
$(umask 077; openssl rand -base64 2048 > $STORAGE_ROOT/backup/secret_key.txt)
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fi
# Download jQuery and Bootstrap local files
# Make sure we have the directory to save to.
assets_dir=$inst_dir/vendor/assets
rm -rf $assets_dir
mkdir -p $assets_dir
# jQuery CDN URL
jquery_version=2.1.4
jquery_url=https://code.jquery.com
# Get jQuery
wget_verify $jquery_url/jquery-$jquery_version.min.js 43dc554608df885a59ddeece1598c6ace434d747 $assets_dir/jquery.min.js
# Bootstrap CDN URL
bootstrap_version=3.3.7
bootstrap_url=https://github.com/twbs/bootstrap/releases/download/v$bootstrap_version/bootstrap-$bootstrap_version-dist.zip
# Get Bootstrap
wget_verify $bootstrap_url e6b1000b94e835ffd37f4c6dcbdad43f4b48a02a /tmp/bootstrap.zip
unzip -q /tmp/bootstrap.zip -d $assets_dir
mv $assets_dir/bootstrap-$bootstrap_version-dist $assets_dir/bootstrap
rm -f /tmp/bootstrap.zip
# Create an init script to start the management daemon and keep it
# running after a reboot.
cat > $inst_dir/start <<EOF;
#!/bin/bash
# Set character encoding flags to ensure that any non-ASCII don't cause problems.
export LANGUAGE=en_US.UTF-8
export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
export LC_TYPE=en_US.UTF-8
source $venv/bin/activate
exec python $(pwd)/management/daemon.py
EOF
chmod +x $inst_dir/start
cp --remove-destination conf/mailinabox.service /lib/systemd/system/mailinabox.service # target was previously a symlink so remove it first
hide_output systemctl link -f /lib/systemd/system/mailinabox.service
hide_output systemctl daemon-reload
hide_output systemctl enable mailinabox.service
# Perform nightly tasks at 3am in system time: take a backup, run
# status checks and email the administrator any changes.
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minute=$((RANDOM % 60)) # avoid overloading mailinabox.email
cat > /etc/cron.d/mailinabox-nightly << EOF;
# Mail-in-a-Box --- Do not edit / will be overwritten on update.
# Run nightly tasks: backup, status checks.
$minute 3 * * * root (cd $(pwd) && management/daily_tasks.sh)
EOF
# Start the management server.
restart_service mailinabox