Created
September 9, 2017 12:00
-
-
Save dubs3c/fb1c438954e18b880ea516a91d78a4ec to your computer and use it in GitHub Desktop.
Database backup and verification using Docker.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#!/bin/bash | |
# Get current date with format: Y-m-d_HMS | |
date=$(date +%Y-%m-%d_%H%M%S); | |
# Backup location | |
BACKUP_LOC='/srv/postgres/'; | |
DB_SUCCESS='success/'; | |
DB_UNTESTED='untested/'; | |
DB_FAILED='failed/'; | |
# Log location | |
LOG_FILE='/srv/postgres/log/'; | |
# Email address | |
EMAIL=''; | |
# Postgres environment variables | |
export PGUSER=''; | |
export PGHOST=''; | |
export PGDATABASE=''; | |
export PGPASSWORD=''; | |
DOCKER_PGPORT=''; | |
DOCKER_PGPASSWORD=''; | |
BACKUP_FILENAME=${BACKUP_LOC}${DB_UNTESTED}${PGDATABASE}_${date}.sql; | |
echo "[*] Creating a postgres docker container..." | |
# Attempt to resore the database with a docker instance running postgres | |
docker run -d --name ${PGDATABASE}_${date} -p $DOCKER_PGPORT:5432 -e POSTGRES_PASSWORD=$DOCKER_PGPASSWORD -e POSTGRES_USER=$PGUSER -e POSTGRES_DB=$PGDATABASE postgres | |
# We need to wait for docker to fully initialize before we can start restoring data | |
sleep 10 | |
# Change to postgres user | |
#su postgres | |
cd /var/lib/pgsql | |
echo "[*] Dumping the database..." | |
# Dump the database | |
if ! su -c "pg_dump --verbose -wF c ${PGDATABASE} > ${BACKUP_FILENAME} 2> ${LOG_FILE}${PGDATABASE}_${date}.dump.txt" postgres | |
then | |
echo "[-] pg_dump error..." >> cat ${LOG_FILE}${PGDATABASE}_${date}.dump.txt | |
cat ${LOG_FILE}${PGDATABASE}_${date}.dump.txt | mail $EMAIL -s "Postgresql database dump failure!" | |
mv ${BACKUP_FILENAME} ${BACKUP_LOC}${DB_FAILED}${PGDATABASE}_${date}.sql | |
docker kill ${PGDATABASE}_${date} | |
docker rm ${PGDATABASE}_${date} | |
exit 1; | |
fi | |
export PGPORT=$DOCKER_PGPORT; | |
export PGPASSWORD=$DOCKER_PGPASSWORD; | |
echo "[*] Testing the database backup with docker..." | |
if ! su -c "pg_restore --no-owner --exit-on-error -d ${PGDATABASE} -F c ${BACKUP_FILENAME} 2> ${LOG_FILE}${PGDATABASE}_${date}.restore.txt" postgres | |
then | |
echo "[-] pg_restore error..." >> ${LOG_FILE}${PGDATABASE}_${date}.restore.txt | |
cat ${LOG_FILE}${PGDATABASE}_${date}.restore.txt | mail -s "Postgresql database dump failure!" $EMAIL | |
mv ${BACKUP_FILENAME} ${BACKUP_LOC}${DB_FAILED}${PGDATABASE}_${date}.sql | |
docker kill ${PGDATABASE}_${date} | |
docker rm ${PGDATABASE}_${date} | |
exit; | |
else | |
# Great success, no errors! | |
gzip $BACKUP_FILENAME | |
mv ${BACKUP_FILENAME}.gz ${BACKUP_LOC}${DB_SUCCESS}${PGDATABASE}_${date}.sql.gz | |
fi | |
# Remove containers | |
echo "[*] Cleaning up..." | |
docker kill ${PGDATABASE}_${date} | |
docker rm ${PGDATABASE}_${date} | |
echo "[!] Done" |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment