34 lines
1.2 KiB
Markdown
34 lines
1.2 KiB
Markdown
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<!--[metadata]>
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+++
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title = "upgrade"
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description = "Upgrade Docker on a machine"
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keywords = ["machine, upgrade, subcommand"]
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[menu.main]
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parent="smn_machine_subcmds"
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+++
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<![end-metadata]-->
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# upgrade
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Upgrade a machine to the latest version of Docker. How this upgrade happens
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depends on the underlying distribution used on the created instance.
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For example, if the machine uses Ubuntu as the underlying operating system, it
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will run a command similar to `sudo apt-get upgrade lxc-docker`, because Machine
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expects Ubuntu machines it manages to use this package. As another example, if
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the machine uses boot2docker for its OS, this command will download the latest
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boot2docker ISO and replace the machine's existing ISO with the latest.
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```
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$ docker-machine upgrade dev
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Stopping machine to do the upgrade...
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Upgrading machine dev...
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Downloading latest boot2docker release to /home/username/.docker/machine/cache/boot2docker.iso...
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Starting machine back up...
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Waiting for VM to start...
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```
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> **Note**: If you are using a custom boot2docker ISO specified using
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> `--virtualbox-boot2docker-url` or an equivalent flag, running an upgrade on
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> that machine will completely replace the specified ISO with the latest
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> "vanilla" boot2docker ISO available.
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