94 lines
2.4 KiB
Bash
94 lines
2.4 KiB
Bash
#! /bin/sh
|
|
|
|
#
|
|
# MySQL Backup
|
|
# Do backup of one or all databases of a given MySQL server
|
|
#
|
|
|
|
#
|
|
# List Databases
|
|
#
|
|
|
|
# only argument is a database url
|
|
DB_URL="$1";
|
|
|
|
# load database values as environment variables while checking URL validity
|
|
#
|
|
# will populate variables
|
|
# - $DB_USERNAME
|
|
# - $DB_PASSWORD
|
|
# - $DB_HOST
|
|
# - $DB_PORT
|
|
# - $DB_NAME
|
|
# - any query var as a prefixed variable $db_arg_${name}=${value}
|
|
dburl-parser.sh ${DB_URL} > /tmp/ofelia.dotenv;
|
|
source /tmp/ofelia.dotenv;
|
|
rm /tmp/ofelia.dotenv;
|
|
|
|
# set backup destination
|
|
if test -z "${BACKUP_DATABASES_PATH}"; then
|
|
echo "failed initializing backup -- \$BACKUP_DATABASES_PATH is empty";
|
|
exit 1;
|
|
fi
|
|
## set subdirectory
|
|
backup_path="/$(
|
|
echo "/${BACKUP_DATABASES_PATH}/${db_arg_directory:-\/}/"\
|
|
| sed 's/\/\{1,\}/\//g'\
|
|
| sed 's/^\/\(.*\)\/$/\1/'
|
|
)/"
|
|
|
|
## directory path
|
|
mkdir -p ${backup_path};
|
|
## file name
|
|
backup_prefix="${db_arg_prefix:-backup-}";
|
|
backup_extension="${db_arg_file_extension:-SQL}";
|
|
|
|
# set databases list
|
|
if test "${DB_NAME}" = '*'; then
|
|
## build a list with every database name if * is informed
|
|
databases=$(mysql\
|
|
--user=${DB_USERNAME}\
|
|
--password=${DB_PASSWORD}\
|
|
--host="${DB_HOST}"\
|
|
--execute="SHOW DATABASES;"\
|
|
--vertical\
|
|
--column-names=false\
|
|
| grep -ve ^\*\
|
|
| xargs
|
|
);
|
|
else
|
|
## use the database informed or force using --all-databases param
|
|
databases="${DB_NAME:-::ALL_DATABASES::}";
|
|
fi
|
|
|
|
# proccess each database
|
|
for database_item in ${databases}; do
|
|
if test -z "${database_item}"; then
|
|
## skip empty lines
|
|
continue;
|
|
elif test "${database_item}" = "::ALL_DATABASES::"; then
|
|
# backup everything in a single file if no database was set
|
|
database="--all-databases";
|
|
filename_database="all-databases";
|
|
else
|
|
# backup each database name to its own file
|
|
database="--databases ${database_item}";
|
|
filename_database="${database_item}";
|
|
fi
|
|
cat | xargs mysqldump << HEREDOC
|
|
$(test -n ${DB_USERNAME} && echo "--user=${DB_USERNAME}")
|
|
$(test -n ${DB_PASSWORD} && echo "--password=${DB_PASSWORD}")
|
|
$(test -n ${DB_HOST} && echo "--host=${DB_HOST}")
|
|
$(test -n ${DB_PORT} && echo "--port=${DB_PORT}")
|
|
--result-file=$(
|
|
printf '%s/%s%s-%s_%s.%s'\
|
|
${backup_path}\
|
|
${backup_prefix}\
|
|
${DB_HOST}\
|
|
${filename_database}\
|
|
$(date +%s)\
|
|
${backup_extension}
|
|
)
|
|
${database}
|
|
HEREDOC
|
|
done |