directly support ubuntu based distros in add repository snippet #21749
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default to VERSION_CODENAME but use UBUNTU_CODENAME if present and remove comment to do so manually
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not sure; still on the fence on this. We don't test on any of these derivatives, which is why we added a section about this; https://docs.docker.com/engine/install/#other-linux-distributions
trying to make it "just work" without the user acknowledging / realizing it's an unsupported setup may make it seem as if it's supported / tested.
@vvoland @tianon @neersighted any thoughts?
| $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \ | ||
| $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}") stable" | \ | ||
| sudo tee /etc/apt/sources.list.d/docker.list > /dev/null | ||
| sudo apt-get update | ||
| ``` | ||
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| > [!NOTE] | ||
| > | ||
| > If you use an Ubuntu derivative distribution, such as Linux Mint, | ||
| > you may need to use `UBUNTU_CODENAME` instead of `VERSION_CODENAME`. | ||
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Personally, I'm okay with making it use UBUNTU_CODENAME if available, as long as we keep the notice but change it to warn about derivatives are not supported officially (but MAY work).
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I rephrased the notice and moved it to the section, where the supported distributions are listed.
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Agreed, should be mostly harmless. 👍 |
default to
VERSION_CODENAMEbut useUBUNTU_CODENAMEif present and remove comment to do so manuallyDescription
The note, that was added in the documentation to use
UBUNTU_CODENAMEinstead ofVERSION_CODENAMEcould easily be implemented in the snippet directly, by using shell parameter expansion with a default value. In caseUBUNTU_CODENAMEis present in/etc/os-releaseit is used and otherwise the regularVERSION_CODENAME.