diff --git a/docs/usage/docker.md b/docs/usage/docker.md index 21f194023545629a7b65805ceb249558efadf54d..f94a73a3153e1224e1360e4bd83665555c8219a1 100644 --- a/docs/usage/docker.md +++ b/docs/usage/docker.md @@ -103,56 +103,45 @@ This makes sure everyone on your team uses the latest versions. ## Version Upgrading -Renovate also supports _upgrading_ versions in Docker tags, e.g. from `myimage:1.2.0` to `myimage:1.2.1` or `myimage:1.2` to `myimage:1.3`. +Renovate also supports _upgrading_ versions in Docker tags, so from `myimage:1.2.0` to `myimage:1.2.1`, or from `myimage:1.2` to `myimage:1.3`. If a tag looks like a version, Renovate will upgrade it like a version. -We recommend you use the `major.minor.patch` tagging scheme, e.g. change from `myimage:1` to `myimage:1.1.1`. -This way you can see what the Renovate PR is going to change. +We recommend you use the `major.minor.patch` tagging scheme, so change `myimage:1` to `myimage:1.1.1` first. +This way you can see the changes in Renovate PRs. You can see the difference between a PR that upgrades `myimage` from `1.1.1` to `1.1.2` and a PR that changes the contents of the version you already use (`1.1.1`). -By default, Renovate will upgrade minor/patch versions (like from `1.2.0` to `1.2.1`), but not upgrade major versions. -If you wish to enable major versions then add the preset `docker:enableMajor` to your `extends` array in your `renovate.json`. +By default, Renovate will upgrade `minor` and `patch` versions, so from `1.2.0` to `1.2.1`, but _not_ upgrade `major` versions. +If you wish to enable `major` versions: add the preset `docker:enableMajor` to the `extends` array in your `renovate.json` file. Renovate has some Docker-specific intelligence when it comes to versions. For example: ### Ubuntu codenames -Renovate understands [Ubuntu release code names](https://wiki.ubuntu.com/Releases) and will offer upgrades to the latest LTS release (e.g. from `ubuntu:xenial` to `ubuntu:focal`). +Renovate understands [Ubuntu release code names](https://wiki.ubuntu.com/Releases) and will offer upgrades to the latest LTS release. -For this to work you must follow this naming scheme: - -- The first term of the full codename is used (e.g. `bionic` for `Bionic Beaver` release) -- The codename is in lowercase +You must only use the _first_ term of the code name in _lowercase_. +So use `jammy` for the Jammy Jellyfish release. For example, Renovate will offer to upgrade the following `Dockerfile` layer: -```dockerfile -FROM ubuntu:yakkety -``` - -To: - -```dockerfile -FROM ubuntu:focal +```diff +- FROM ubuntu:focal ++ FROM ubuntu:jammy ``` ### Debian codenames -Renovate understands [Debian release code names and rolling updates schedule](https://wiki.debian.org/DebianReleases) and will offer upgrades to the latest stable release (e.g. from `debian:stretch` to `debian:bullseye`). +Renovate understands [Debian release code names and rolling updates schedule](https://wiki.debian.org/DebianReleases) and will offer upgrades to the latest stable release. +For example from `debian:bullseye` to `debian:bookworm`. -For this to work the codename must be in lowercase. +The Debian codename must be in _lowercase_. For example, Renovate will offer to upgrade the following `Dockerfile` layer: -```dockerfile -FROM debian:buster -``` - -To: - -```dockerfile -FROM debian:bullseye +```diff +- FROM debian:bullseye ++ FROM debian:bookworm ``` ## Configuring/Disabling