mirror of
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69 lines
2.2 KiB
Markdown
69 lines
2.2 KiB
Markdown
<!--[metadata]>
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+++
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title = "import"
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description = "The import command description and usage"
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keywords = ["import, file, system, container"]
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[menu.main]
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parent = "smn_cli"
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+++
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<![end-metadata]-->
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# import
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Usage: docker import file|URL|- [REPOSITORY[:TAG]]
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Create an empty filesystem image and import the contents of the
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tarball (.tar, .tar.gz, .tgz, .bzip, .tar.xz, .txz) into it, then
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optionally tag it.
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-c, --change=[] Apply specified Dockerfile instructions while importing the image
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--help=false Print usage
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-m, --message= Set commit message for imported image
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You can specify a `URL` or `-` (dash) to take data directly from `STDIN`. The
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`URL` can point to an archive (.tar, .tar.gz, .tgz, .bzip, .tar.xz, or .txz)
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containing a filesystem or to an individual file on the Docker host. If you
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specify an archive, Docker untars it in the container relative to the `/`
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(root). If you specify an individual file, you must specify the full path within
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the host. To import from a remote location, specify a `URI` that begins with the
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`http://` or `https://` protocol.
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The `--change` option will apply `Dockerfile` instructions to the image
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that is created.
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Supported `Dockerfile` instructions:
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`CMD`|`ENTRYPOINT`|`ENV`|`EXPOSE`|`ONBUILD`|`USER`|`VOLUME`|`WORKDIR`
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## Examples
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**Import from a remote location:**
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This will create a new untagged image.
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$ docker import http://example.com/exampleimage.tgz
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**Import from a local file:**
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Import to docker via pipe and `STDIN`.
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$ cat exampleimage.tgz | docker import - exampleimagelocal:new
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Import with a commit message
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$ cat exampleimage.tgz | docker import --message "New image imported from tarball" - exampleimagelocal:new
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Import to docker from a local archive.
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$ docker import /path/to/exampleimage.tgz
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**Import from a local directory:**
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$ sudo tar -c . | docker import - exampleimagedir
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**Import from a local directory with new configurations:**
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$ sudo tar -c . | docker import --change "ENV DEBUG true" - exampleimagedir
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Note the `sudo` in this example – you must preserve
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the ownership of the files (especially root ownership) during the
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archiving with tar. If you are not root (or the sudo command) when you
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tar, then the ownerships might not get preserved.
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