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Backup and restore MongoDB running in a Docker container
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| #!/bin/bash | |
| usage() { | |
| echo "Usage $0 -c mongo_docker_container_name" | |
| } | |
| while [[ $# > 1 ]] | |
| do | |
| key="$1" | |
| case $key in | |
| -c|--container) | |
| CONTAINERNAME="$2" | |
| shift # past argument | |
| ;; | |
| *) | |
| usage | |
| exit 1 | |
| ;; | |
| esac | |
| shift # past argument or value | |
| done | |
| if [ -z "${CONTAINERNAME}" ]; then | |
| usage | |
| exit 1 | |
| fi | |
| # -i interactive | |
| # -t open TTY | |
| # --rm remove container after use | |
| # --name name of our temporary container | |
| # --link map server container to hostname within client container | |
| # mongo use official mongo image | |
| # command line to run: | |
| # mongo --host <hostname> | |
| docker run -it --rm --name mongoconsole --link ${CONTAINERNAME}:${CONTAINERNAME} mongo mongo --host ${CONTAINERNAME} |
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| #!/bin/bash | |
| usage() { | |
| echo "Usage $0 -c mongo_docker_container_name -db db_name" | |
| } | |
| while [[ $# > 1 ]] | |
| do | |
| key="$1" | |
| case $key in | |
| -db|--database) | |
| DBNAME="$2" | |
| shift # past argument | |
| ;; | |
| -c|--container) | |
| CONTAINERNAME="$2" | |
| shift # past argument | |
| ;; | |
| *) | |
| usage | |
| exit 1 | |
| ;; | |
| esac | |
| shift # past argument or value | |
| done | |
| if [ -z "${DBNAME}" -o -z "${CONTAINERNAME}" ]; then | |
| usage | |
| exit 1 | |
| fi | |
| docker run -it --name mongodump --link ${CONTAINERNAME}:${CONTAINERNAME} mongo mongodump --db ${DBNAME} --host ${CONTAINERNAME} | |
| docker cp mongodump:dump ./mongodump-$(date --iso-8601) | |
| if [ $? -ne 0 ]; then | |
| echo "MongoDB did not succeed taking a backup. Did you specify the correct database name?" | |
| fi | |
| # Clean up container | |
| docker rm mongodump |
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| #!/bin/bash | |
| # Use > 1 to consume two arguments per pass in the loop (e.g. each | |
| # argument has a corresponding value to go with it). | |
| # Use > 0 to consume one or more arguments per pass in the loop (e.g. | |
| # some arguments don't have a corresponding value to go with it) | |
| usage() { | |
| echo "Usage $0 -d /mongodump/dir -c mongo_docker_container_name" | |
| } | |
| while [[ $# > 1 ]] | |
| do | |
| key="$1" | |
| case $key in | |
| -d|--dump) | |
| DUMPDIR="$2" | |
| shift # past argument | |
| ;; | |
| -c|--container) | |
| CONTAINERNAME="$2" | |
| shift # past argument | |
| ;; | |
| *) | |
| usage | |
| exit 1 | |
| ;; | |
| esac | |
| shift # past argument or value | |
| done | |
| if [ -z "${DUMPDIR}" -o -z "${CONTAINERNAME}" ]; then | |
| usage | |
| exit 1 | |
| fi | |
| echo "Attempting to restore mongodb dump at ${DUMPDIR} into container ${CONTAINERNAME}" | |
| read -r -p "Is this what you want? [y/N] " response | |
| case $response in | |
| [yY][eE][sS]|[yY]) | |
| docker run -it --rm --name mongorestore -v ${DUMPDIR}:/var/dump --link ${CONTAINERNAME}:${CONTAINERNAME} mongo mongorestore --host ${CONTAINERNAME} /var/dump | |
| ;; | |
| *) | |
| echo "Nevermind then" | |
| ;; | |
| esac |
I was getting the same error doing the docker dump but when adding the -o /tmp/dump worked.
I used the docker restore script without issues! 👍
the restore script needed a little tweaking on our environment to accomodate a separate Docker network for the MongoDB instance and also because since Mongo 3.0 you have to pass the --db flag to mongorestore. Updated script is:
#!/bin/bash
# Use > 1 to consume two arguments per pass in the loop (e.g. each
# argument has a corresponding value to go with it).
# Use > 0 to consume one or more arguments per pass in the loop (e.g.
# some arguments don't have a corresponding value to go with it)
usage() {
echo "Usage $0 -d /mongodump/dir -c mongo_docker_container_name -n network_name -D dest_database"
}
while [[ $# > 1 ]]
do
key="$1"
case $key in
-d|--dump)
DUMPDIR="$2"
shift # past argument
;;
-c|--container)
CONTAINERNAME="$2"
shift # past argument
;;
-n|--network)
NETWORK="$2"
shift # past argument
;;
-D|--database)
DATABASE="$2"
shift # past argument
;;
*)
usage
exit 1
;;
esac
shift # past argument or value
done
if [ -z "${DUMPDIR}" -o -z "${CONTAINERNAME}" ]; then
usage
exit 1
fi
echo "Attempting to restore mongodb dump at ${DUMPDIR} into container ${CONTAINERNAME}"
read -r -p "Is this what you want? [y/N] " response
case $response in
[yY][eE][sS]|[yY])
docker run -it --rm --name mongorestore -v ${DUMPDIR}:/var/dump --link ${CONTAINERNAME}:${CONTAINERNAME} --network ${NETWORK} mongo mongorestore --host ${CONTAINERNAME} --db ${DATABASE} /var/dump
;;
*)
echo "Nevermind then"
;;
esac
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hi @stanislvb
helpful scripts! thx.
getting a permission denied error on
mongodumptried running it with
--privilegedbut same effect.using
-o /tmp/dumpfor themongorestorecommand worked, but i wonder why it did not work in my case... i am running aminikube(local kubernetes cluster) - maybe that's got something to do with it?cheers
_f
@