mongodb dump from running docker container

mongodump.sh

#!/bin/bash
# dump mongodb from running docker container to specified archive file 

# exit on first error
set -e

ARCHIVE_FILE="${2:-mongo_all.db.archive}"

DIR_NAME="$(dirname ${ARCHIVE_FILE})"

# create dir
mkdir -p "${DIR_NAME}"

function print_usage() {
    echo -e "\ndump mongodb from specified docker container to specified archive file" >&2 
    echo -e "\nUsage: $0 [docker_container_with_mongodb]" >&2
    echo -e "       $0 [docker_container_with_mongodb] [dump_to_file] \n" >&2
    echo -e "Example:" >&2
    echo -e "       $0 fa092afe870 mongo_dump/mongo_all.db.archive \n" >&2
}

if [[ "$#" -lt 1 || "$#" -gt 2 ]]; then
    echo "ERROR: wrong number of args!" >&2 
    print_usage
    exit 1
fi

# taken from https://davejansen.com/how-to-dump-restore-a-mongodb-database-from-a-docker-container/
# create dump dir inside container
docker exec -i "${1}" mkdir -p "${DIR_NAME}"
# do the dump
docker exec -i "${1}" /usr/bin/mongodump --archive="${ARCHIVE_FILE}"
# copy to host
docker cp "${1}":${ARCHIVE_FILE} ${ARCHIVE_FILE}

echo dumped to "${ARCHIVE_FILE}"

mongorestore.sh

#!/bin/bash
# restore mongodb running in specified docker container from specified archive file 

# exit on first error
set -e

ARCHIVE_FILE="${2:-mongo_all.db.archive}"
DIR_NAME="$(dirname ${ARCHIVE_FILE})"

function print_usage() {
    echo -e "\nrestore mongodb running in specified docker container from specified archive file" >&2 
    echo -e "\nUsage: $0 [docker_container_with_mongodb]" >&2
    echo -e "       $0 [docker_container_with_mongodb] [restore_from_file] \n" >&2
    echo -e "Example:" >&2
    echo -e "       $0 fa092afe870 mongo_dump/mongo_all.db.archive \n" >&2
}

if [[ "$#" -lt 1 || "$#" -gt 2 ]]; then
    echo "ERROR: wrong number of args!" >&2 
    print_usage
    exit 1
fi

read -p "Are you sure you want to restore mongodb running in container ${1} from archive ${ARCHIVE_FILE}? (y/N) " decision
if [ "$decision" != "Y" ] && [ "$decision" != "y" ]; then
    echo canceled
    exit
fi

# based on https://davejansen.com/how-to-dump-restore-a-mongodb-database-from-a-docker-container/
# create dump dir inside container
docker exec -i "${1}" mkdir -p "${DIR_NAME}"
# copy dump archive to container 
docker cp "${ARCHIVE_FILE}" "${1}":"${ARCHIVE_FILE}"
# restore mongodb
docker exec -i "${1}" /usr/bin/mongorestore --archive="${ARCHIVE_FILE}"

echo mongodb in container "${1}" restored from "${ARCHIVE_FILE}"