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fix: Stop using the latest tag for the default DOKKU_CNB_BUILDER

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Previously the default value for `DOKKU_CNB_BUILDER` was `heroku/buildpacks`,
which for Docker is equivalent to `heroku/buildpacks:latest`.

The `latest` tag is about to be deleted (see heroku/builder#344), so this
switches the default value to `heroku/buildpacks:20` - which is what the
`latest` tag is currently as alias for.

Longer term, `DOKKU_CNB_BUILDER` should be switched to the non-deprecated
`heroku/builder:*` images, however, that's potentially a breaking change,
so is out of scope of this bug-fix PR.

For the list of available builders/tags, see:
https://github.com/heroku/builder#heroku-builder-images

Fixes #5861.
This commit is contained in:
Ed Morley
2023-05-19 08:31:28 +01:00
committed by GitHub
parent e72f5b1d90
commit 56b75f80af
1 changed files with 1 additions and 1 deletions
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@@ -42,7 +42,7 @@ DOKKU_DISTRO=$(
export DOCKER_BIN=${DOCKER_BIN:="docker"}
export DOKKU_IMAGE=${DOKKU_IMAGE:="gliderlabs/herokuish:latest-20"}
export DOKKU_CNB_BUILDER=${DOKKU_CNB_BUILDER:="heroku/buildpacks"}
export DOKKU_CNB_BUILDER=${DOKKU_CNB_BUILDER:="heroku/buildpacks:20"}
export DOKKU_LIB_ROOT=${DOKKU_LIB_PATH:="/var/lib/dokku"}
export PLUGIN_PATH=${PLUGIN_PATH:="$DOKKU_LIB_ROOT/plugins"}