James Kunstle a écrit : > However, different container maintainers include the metadata about their > Dockerfile's in different ways. > Take nginx for example. Its Dockerfile contains both: > > NGINX_VERSION=1.12 > > and > > VERSION=0 > > What would be the correct way to solve this collision for a hypothetical > workflow that you might have? > Are there any ad hoc best-practices w.r.t Dockerfile standards involving > specifying the version and release > number? >
Hi James, As far I can see in the Docker images produced by the Cloud SIG (http://fedoraproject.org/wiki/Cloud), it seems to be this rule: <PKGNAME>_VERSION=<version> you saw NGINX_VERSION=1.12 I saw MYSQL_VERSION=10.5.9 because I'm using mariadb Docker image. But personnaly, I think it is not a good idea to do this. It gives a lot of issue and make it harder to maintain the Dockerfile. Perhaps it is useful on database softwares, to keep compatibility, but for something else, I think it's useless. If you specify the version in the Dockerfile, this info will be obsolete and false by the time. If you add tests in your Dockerfile to be sure you're installing this version exactly, the Docker image will fail to build by the time... then you need to fix the Dockerfile. So, where do I specify the version of the software (because I need this information, anyway) ? I put it in the tag of the image during the build (or after), like that: poezio:0.13.1-9 <pkgname>:<pkgversion>-<image_version> regards, Casper -- GnuPG: AE157E0B29F0BEF2 at keys.openpgp.org CA Cert: https://dl.casperlefantom.net/pub/ssl/root.der Jabber/XMPP Messaging: [email protected]
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