chore: remove references to pack being experimental

It is no longer experimental and is here to stay.

docs/deployment/builders/cloud-native-buildpacks.md

@@ -14,8 +14,8 @@ buildpacks:set-property [--global|<app>] <key> <value>  # Set or clear a buildpa
 
 Cloud Native Buildpacks are an evolution over the Buildpacks technology provided by the Herokuish builder. See the [herokuish buildpacks documentation](/docs/deployment/builders/herokuish-buildpacks.md) for more information on how to clear buildpack build cache for an application.
 
-> [!WARNING]
-> This functionality uses the `pack` cli from the [Cloud Native Buildpacks](https://buildpacks.io) project to build apps. As the integration is experimental in Dokku, it is likely to change over time.
+> [!NOTE]
+> This functionality uses the `pack` cli from the [Cloud Native Buildpacks](https://buildpacks.io) project to build apps.
 
 ## Usage
 
@@ -27,7 +27,7 @@ Builds will proceed with the `pack` cli for the app from then on.
 
 ### Caveats
 
-As this functionality is highly experimental, there are a number of caveats. Please note that not all issues are listed below.
+While pack is well-supported in Dokku, there are a number of caveats. Please note that not all issues are listed below.
 
 - Specifying specific buildpacks is not currently possible.
     - A future release will add support for specifying buildpacks via the `buildpacks` plugin.
@@ -41,16 +41,7 @@ As this functionality is highly experimental, there are a number of caveats. Ple
 
 ### Detection
 
-This builder will be auto-detected in either the following cases:
-
-- The `DOKKU_CNB_EXPERIMENTAL` app environment variable is set to `1`.
-
-    ```shell
-    dokku config:set --no-restart node-js-app DOKKU_CNB_EXPERIMENTAL=1
-    ```
-
-- A `project.toml` file exists in the root of the app repository.
-    - This file is consumed by `pack-cli` and used to describe how the app is built.
+This builder will be auto-detected if a `project.toml` file exists in the root of the app repository.  This file is consumed by `pack-cli` and used to describe how the app is built.
 
 The builder can also be specified via the `builder:set` command:
 

plugins/builder-pack/builder-detect

@@ -12,11 +12,6 @@ trigger-builder-pack-builder-detect() {
     echo "pack"
     return
   fi
-
-  if [[ "$(config_get "$APP" DOKKU_CNB_EXPERIMENTAL || true)" == "1" ]]; then
-    echo "pack"
-    return
-  fi
 }
 
 trigger-builder-pack-builder-detect "$@"

plugins/common/functions

@@ -665,11 +665,6 @@ dokku_receive() {
 
   docker_cleanup "$APP"
 
-  local DOKKU_CNB_EXPERIMENTAL="$(config_get "$APP" DOKKU_CNB_EXPERIMENTAL || true)"
-  if [[ "$DOKKU_CNB_EXPERIMENTAL" == "1" ]]; then
-    IMAGE_SOURCE_TYPE="pack"
-  fi
-
   plugn trigger builder-set-property "$APP" "detected" "$IMAGE_SOURCE_TYPE"
   if ! dokku_build "$APP" "$IMAGE_SOURCE_TYPE" "$TMP_WORK_DIR"; then
     return 1

tests/unit/app-json.bats

@@ -94,7 +94,12 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run /bin/bash -c "dokku config:set --no-restart $TEST_APP DOKKU_CNB_EXPERIMENTAL=1 SECRET_KEY=fjdkslafjdk"
+  run /bin/bash -c "dokku config:set --no-restart $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected pack"
   echo "output: $output"
   echo "status: $status"
   assert_success

tests/unit/builder.bats

@@ -99,19 +99,6 @@ teardown() {
   echo "output: $output"
   echo "status: $status"
   assert_success
-
-  # test DOKKU_CNB_EXPERIMENTAL env var
-  run /bin/bash -c "dokku config:set $TEST_APP DOKKU_CNB_EXPERIMENTAL=1"
-  echo "output: $output"
-  echo "status: $status"
-  assert_success
-
-  chown -R dokku:dokku "$TMP"
-  run /bin/bash -c "dokku plugin:trigger builder-detect $TEST_APP $TMP"
-  echo "output: $output"
-  echo "status: $status"
-  assert_success
-  assert_line 0 "pack"
 }
 
 @test "(builder) builder-detect [dockerfile]" {

tests/unit/ps-cnb.bats

@@ -17,7 +17,7 @@ teardown() {
 }
 
 @test "(ps) cnb env vars" {
-  run /bin/bash -c "dokku config:set $TEST_APP DOKKU_CNB_EXPERIMENTAL=1"
+  run /bin/bash -c "dokku config:set $TEST_APP APP_RESPECTS_ENV_VARS=1"
   echo "output: $output"
   echo "status: $status"
   assert_success
@@ -31,5 +31,5 @@ teardown() {
   echo "output: $output"
   echo "status: $status"
   assert_success
-  assert_output_contains '"DOKKU_CNB_EXPERIMENTAL": "1"'
+  assert_output_contains '"APP_RESPECTS_ENV_VARS": "1"'
 }

tests/unit/run_1.bats

@@ -68,7 +68,12 @@ teardown() {
   echo "status: $status"
   assert_success
 
-  run /bin/bash -c "dokku config:set --no-restart $TEST_APP DOKKU_CNB_EXPERIMENTAL=1 SECRET_KEY=fjdkslafjdk"
+  run /bin/bash -c "dokku config:set --no-restart $TEST_APP SECRET_KEY=fjdkslafjdk"
+  echo "output: $output"
+  echo "status: $status"
+  assert_success
+
+  run /bin/bash -c "dokku builder:set $TEST_APP selected pack"
   echo "output: $output"
   echo "status: $status"
   assert_success