Script for managing production versions of online.ntnu.no

prod.sh

#!/bin/bash
#
# Written by Håvard Slettvold

PROJECT_ROOT="/srv/www/onlineweb4"
ENV="$PROJECT_ROOT/env"
GIT="$PROJECT_ROOT/onlineweb4"
NUM_SHOW=10

# Move to git checkout repo
cd "$GIT"
# Fetch all tags from origin
echo - Fetching tags
git fetch --tags > /dev/null
TAGS=(`git for-each-ref --format='%(*committerdate:raw)%(committerdate:raw) %(refname) %(*objectname) %(objectname)' refs/tags | sort -n | awk '{ print $3; }' | awk -F"/" '{ print $3; }'`)

# Find out which versions to show
START=`expr ${#TAGS[*]} - $NUM_SHOW`

# Make an array with only the X latest
LATEST="${TAGS[*]:$START}"
LATEST=($LATEST)

# Show versions
for index in ${!LATEST[*]}; do
    printf "%s: %s\n" `expr $NUM_SHOW - $index` ${LATEST[$index]}
done | tac
# 'tac' is an oposite of 'cat', just reverses lines in input

# Take user input for which version they want
echo - Which version of onlineweb4 do you wish to set in production?
echo - "'Enter' for latest (${LATEST[`expr $NUM_SHOW - 1`]})."
read CHOICE
if [ -z "$CHOICE" ]; then
    CHOICE=1
fi

CHOICE=`expr $NUM_SHOW - $CHOICE`

TAG=${LATEST[$CHOICE]}
echo "- You have chosen '$TAG'. Preparing production staging."

# Enabling virtualenv for project
source "$ENV/bin/activate"
# Delete old .pyc files
find . -name '*.pyc' -delete
# Fetch selected version
`git checkout $TAG`
# Install requirements if any
echo - Updating requirements
pip freeze | grep -v -f requirements.txt - | xargs pip uninstall -y
pip install -r requirements.txt
# Update and migrate database
python manage.py migrate --noinput
# Update static files
python manage.py collectstatic --noinput
# Restart services
supervisorctl restart onlineweb4
supervisorctl restart mommy
# Restart memcached
service memcached restart
service nginx restart