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Creating a backup script to dump mongodb inside a container, I need to copy the folder outside the container, Docker cp doesn't seem to work with wildcards :
docker cp mongodb:mongo_dump_* . The following is thrown in the terminal :
Error response from daemon: lstat /var/lib/docker/aufs/mnt/SomeHash/mongo_dump_*: no such file or directory
Is there any workaround to use wildcards with cp command ?
292
The docker cp utility copies the contents of SRC_PATH to the DEST_PATH . You can copy from the container's file system to the local machine or the reverse, from the local filesystem to the container. If - is specified for either the SRC_PATH or DEST_PATH , you can also stream a tar archive from STDIN or to STDOUT .
To summarize, follow these steps to copy a file from a Docker container to a host machine: Obtain the name or id of the Docker container. Issue the docker cp command and reference the container name or id. The first parameter of the docker copy command is the path to the file inside the container.
Usage: docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH|- docker cp [OPTIONS] SRC_PATH|- CONTAINER:DEST_PATH Copy files/folders between a container and the local filesystem Use '-' as the source to read a tar archive from stdin and extract it to a directory destination in a container.
If you want to copy the /tmp/foo directory from a container to the existing /tmp directory on your host. If you run docker cp in your (home) directory on the local host: $ docker cp compassionate_darwin:tmp/foo /tmp Docker creates a /tmp/foo directory on your host.
I had a similar problem, and had to solve it in two steps:
$ docker exec <id> bash -c "mkdir -p /extract; cp -f /path/to/fileset* /extract" $ docker cp <id>:/extract/. . If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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