Add deprecation messaging to builder:20 (#552)

* Add deprecation messaging to builder:20 * API 0.10 Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com> * Drop stacks Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com> * Use correct url anchor Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com> * Additional metadata for eol buildpack * Small refactor for display_error * Drop newline Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com> --------- Co-authored-by: Ed Morley <501702+edmorley@users.noreply.github.com>
heroku · Jul 18, 2024 · 5c6d47e · 5c6d47e
1 parent 6e5bf01
commit 5c6d47e
Show file tree

Hide file tree

Showing 4 changed files with 88 additions and 0 deletions.
diff --git a/builder-20/builder.toml b/builder-20/builder.toml
@@ -8,6 +8,10 @@ run-image = "heroku/heroku:20-cnb"
 [lifecycle]
 version = "0.20.0"
 
+[[buildpacks]]
+ id = "heroku/eol-warning"
+ uri = "./eol-buildpack/"
+
 [[buildpacks]]
  id = "heroku/go"
  uri = "docker://docker.io/heroku/buildpack-go@sha256:5b9434437add557c6a2cb7ad528480bacbde8a9ca9c5b3750c79ccb7c30afabd"
@@ -48,6 +52,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -69,6 +76,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -78,6 +88,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -87,6 +100,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -96,6 +112,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -105,6 +124,9 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
 
 [[order]]
  [[order.group]]
@@ -114,3 +136,6 @@ version = "0.20.0"
  id = "heroku/procfile"
  version = "3.1.2"
  optional = true
+ [[order.group]]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
diff --git a/builder-20/eol-buildpack/bin/build b/builder-20/eol-buildpack/bin/build
@@ -0,0 +1,50 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+ANSI_RED="\033[1;31m"
+ANSI_RESET="\033[0m"
+
+function display_error() {
+ echo >&2
+ while IFS= read -r line; do
+ echo -e "${ANSI_RED}${line}${ANSI_RESET}" >&2
+ done <<< "${1}"
+ echo >&2
+}
+
+# Banner generated via https://www.ascii-art-generator.org/ with "big" font
+# and 70 width.
+read -r -d '' EOL_MESSAGE <<'EOF' || true
+#######################################################################
+ _ _ ___ ___ ______ ____ _
+| | | | |__ \ / _ \ | ____/ __ \| |
+| |__ ___ _ __ ___ | | ___ _ ______ ) | | | | | |__ | | | | |
+| '_ \ / _ \ '__/ _ \| |/ / | | |______/ /| | | | | __|| | | | |
+| | | | __/ | | (_) | <| |_| | / /_| |_| | | |___| |__| | |____
+|_| |_|\___|_| \___/|_|\_\\\__,_| |____|\___/ |______\____/|______|
+
+This builder image ('heroku/bulder:20') is deprecated, since it is
+based on the deprecated 'heroku/heroku:20' base image.
+
+Starting April 30th, 2025, this image will no longer receive security
+updates. Shortly after, this builder will be disabled and made
+unavailable.
+
+To continue receiving security updates and avoid interruption, upgrade
+to one of our newer builders, such as 'heroku/builder:22' or
+'heroku/builder:24':
+https://github.com/heroku/cnb-builder-images#available-images
+
+If you are using the Pack CLI, you will need to adjust your '--builder'
+CLI argument or change the default builder configuration:
+https://buildpacks.io/docs/tools/pack/cli/pack_config_default-builder/
+
+If you are using a third-party platform to deploy your app, check the
+platform documentation for instructions on changing the builder.
+#######################################################################
+EOF
+
+display_error "${EOL_MESSAGE}"
+
+exit 0
diff --git a/builder-20/eol-buildpack/bin/detect b/builder-20/eol-buildpack/bin/detect
@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+exit 0
diff --git a/builder-20/eol-buildpack/buildpack.toml b/builder-20/eol-buildpack/buildpack.toml
@@ -0,0 +1,10 @@
+api = "0.10"
+
+[buildpack]
+ id = "heroku/eol-warning"
+ version = "1.0.0"
+ name = "heroku/builder:20 End-of-Life Warning"
+ homepage = "https://github.com/heroku/cnb-builder-images"
+
+[[buildpack.licenses]]
+ type = "BSD-3-Clause"