thedocks/gitea/restore_gitea_container.sh
2021-12-21 21:08:20 +00:00

182 lines
5.8 KiB
Bash

#!/bin/bash
usage () {
echo "Re-create a Gitea Docker container from a backup"
echo "Run this inside a docker-compose config folder!"
echo "If it's the test container (gitea_test) it'll be automated"
echo "If not, it will give you commands to run to complete the restore"
echo "Usage:"
echo " restore_gitea_container.sh [--unsafe] [--dry-run]"
echo ""
echo "Options:"
echo " --unsafe : Perform actions EVEN OUTSIDE gitea_test container"
echo " : BE CAREFUL with this, it will stomp your container"
echo " --dry-run : Only list actions, don't perform them"
echo ""
}
if [[ "$1" == "--help" ]]; then
usage
exit 0
fi
# MAKE SURE we're in the test dir
PWD=`pwd`
MANUAL_GUIDE=0
IS_TEST=1
if [[ ! -f "$PWD/docker-compose.yml" ]]; then
echo "You must run this inside a folder containing docker-compose.yml! Aborting"
exit 1
fi
if [[ ! "$PWD" == */docker-compose/gitea_test ]]; then
echo "HEY! You're not running this in docker-compose/gitea_test"
echo "So we're assuming this is a live instance and will not execute anything automatically"
echo "Instead, we'll print the commands you need to run."
MANUAL_GUIDE=1
IS_TEST=0
fi
while (( "$#" )); do
if [[ "$1" == "--dry-run" ]]; then
MANUAL_GUIDE=1
elif [[ "$1" == "--unsafe" ]]; then
while true; do
echo "Using --unsafe will destroy & re-create this container in all cases"
echo " It will probably get the ports wrong, be ready to edit app.ini afterwards!"
read -p "Are you SURE this is what you want? (y/n)" yn
case $yn in
[Yy]* ) break;;
[Nn]* ) exit;;
* ) echo "Please answer yes or no.";;
esac
done
MANUAL_GUIDE=0
else
if [[ "$1" == -* ]]; then
echo Unrecognised option $1
usage
exit 3
fi
fi
shift # $2 becomes $1..
done
# Generate all paths based on the last path component
# Root of all the host versions of what gets mapped to /data in container
DATAROOT="$PWD/data"
# Backup source folder, contains gitea_backup.zip, gitrepos_backup.tar.bz2 & lfs
BACKUPSRC="$PWD/gitea"
CONFIG=$(basename $PWD)
DATADIR="$DATAROOT/$CONFIG"
echo "Removing container"
# Use --all in case it's been run manually
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > docker-compose stop"
echo " > docker-compose rm"
else
docker-compose stop
docker-compose rm
fi
echo "Removing old Gitea data"
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > rm -r $DATADIR/*"
else
rm -r $DATADIR/*
fi
echo "Re-creating container"
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > docker-compose up --no-start"
else
docker-compose up --no-start
fi
# We now need to bring up the database server to restore the MySQL data
# Bring it up early so that it's got time to start while we do the data copying
echo "Bringing up database to restore"
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > docker-compose start db"
else
docker-compose start db
fi
# Run the restore script to get back the contents of docker/gitea data folder
echo Restoring Gitea, Git and Git-LFS data
# Copy SQL to MySQL's folder (from host perspective)
MYSQLDATADIR="/volume1/docker/${CONFIG}_db"
MYSQLFILE=`mktemp -t gitea-db.sql.XXXXXX`
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > ../../backups/restore_gitea_data.sh $BACKUPSRC $DATADIR $MYSQLFILE"
else
../../backups/restore_gitea_data.sh $BACKUPSRC $DATADIR $MYSQLFILE
fi
# Restore DB
# We need to make sure it's up, it can take a little time before connections
# are allowed
MYSQL_ATTEMPTS=3
while [[ $MYSQL_ATTEMPTS -gt 0 ]] ; do
echo "Testing if MySQL is up"
let MYSQL_ATTEMPTS--
if docker-compose exec db mysqladmin -uroot -pDB_ROOT_PASSWORD status; then
break
fi
sleep 2
done
# Our docker container creates the gitea user and gitea DB in all cases
# Drop all tables first
# Can't just pipe in data to docker-compose exec because bug https://github.com/docker/compose/issues/3352
# Fixed but not in the Synology version
# We can use main docker but need to parse out the ID for alias 'db'
DB_DOCKER_ID=$(docker-compose ps -q db)
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > docker exec -i $DB_DOCKER_ID mysql -uroot -pDB_ROOT_PASSWORD < ../../sql/reset-gitea-mysql.sql"
echo "> docker exec -i $DB_DOCKER_ID mysql -ugitea -pDB_GITEA_PASSWORD gitea < $MYSQLFILE"
else
echo "Restoring database....be patient!"
docker exec -i $DB_DOCKER_ID mysql -uroot -pDB_ROOT_PASSWORD < ../../sql/reset-gitea-mysql.sql
docker exec -i $DB_DOCKER_ID mysql -ugitea -pDB_GITEA_PASSWORD gitea < $MYSQLFILE
fi
# Clean up
rm -f $MYSQLFILE
# Need to modify app.ini to change ports on URLs
if (( $IS_TEST )); then
echo Fixing up ports
if (( $MANUAL_GUIDE )); then
echo "You need to edit $DATADIR/gitea/conf.app.ini, change:"
echo " - ROOT_URL = https://git.yourserver.com:9000/"
echo " + ROOT_URL = https://git.yourserver.com:10000/"
echo " - SSH_PORT = 9022"
echo " - SSH_PORT = 10022"
else
sed -i "s/\.com:9000/.com:10000" $DATADIR/gitea/conf/app.ini
sed -i "s/9022/10022" $DATADIR/gitea/conf/app.ini
fi
else
echo "Since this isn't the test environment, you'll need to check $DATADIR/gitea/conf.app.ini manually!"
fi
# This will have created the missing ssh folder w/ server config etc
echo "Restoration complete"
echo "Restarting Server"
if (( $MANUAL_GUIDE )); then
echo "Run this:"
echo " > docker-compose up -d"
else
docker-compose up -d
fi
echo "NOTE: SSH keys will likely not work if you're restoring to another server"
echo " Users will probably have to remove & re-add their keys in Settings"