Merge branch 'main' into patch-1

The `launch.toml` command takes a slice and not a string

```
remote: ERROR: failed to build: toml: line 3 (last key "processes.command"): incompatible types: TOML value has type string; destination has type slice
```

Spec: d29ba81518/buildpack.md (launchtoml-toml)

Signed-off-by: Richard Schneeman <richard.schneeman+no-recruiters@gmail.com>

.github/styles/config/vocabularies/Buildpacks/accept.txt

@@ -11,3 +11,9 @@ Rebasing
 SBOM(?s)
 semver
 Syft
+[Tt]ekton
+[Kk]ubernetes
+uid
+Minikube
+kubectl
+Quarkus

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
       - name: Install Dependencies
         run: sudo apt-get install make curl jq
       - name: Install pack
-        uses: buildpacks/github-actions/setup-pack@v5.8.8
+        uses: buildpacks/github-actions/setup-pack@v5.9.1
         with:
           pack-version: '0.36.0'
       - name: Test

content/docs/for-app-developers/how-to/build-inputs/configure-build-time-environment.md

@@ -11,7 +11,12 @@ Environment variables are a common way to configure various buildpacks at build-
 
 <!--more-->
 
-Below are a few ways you can do so. All of them will use our [samples] repo for simplicity.
+Below are a few ways you can do so. All of them use the [samples] repository for
+simplicity. The following documentation assumes that all participating buildpack
+either use `clear-env = false` as the default in their
+[buildpack.toml](https://buildpacks.io/docs/reference/config/buildpack-config/),
+or if they use `clear-env = true`, that they merge in filtered user supplied
+environment variables.
 
 ### Using CLI arguments (`--env`)
 

content/docs/for-app-developers/how-to/build-inputs/use-inline-buildpacks.md

@@ -50,7 +50,7 @@ find . -type f -name $(my_data_files) -delete
 cat <<EOF > ${1}/launch.toml
 [[processes]]
 type = 'bash'
-command = 'bin/bash'
+command = ['bin/bash']
 EOF
 """
 ```

content/docs/for-buildpack-authors/how-to/write-buildpacks/clear-env.md

@@ -3,20 +3,30 @@ title="Clear the buildpack environment"
 weight=99
 +++
 
-"Clearing" the buildpack environment with `clear-env` is the process of preventing end-users from customizing a buildpack's behavior through environment variables.
+"Clearing" the buildpack environment with `clear-env` is the process of preventing the lifecycle from automatically merging user-provided environment variables into the buildpack's executing process's environment variables.
-
 <!--more-->
 
-Buildpack authors may elect to clear user-provided environment variables when `bin/detect` and `bin/build` are executed. This is achieved by setting `clear-env` to `true` in [buildpack.toml](https://github.com/buildpacks/spec/blob/main/buildpack.md#buildpacktoml-toml); by default `clear-env` is set to `false`.
+User-provided environment variables are always written to disk at `$CNB_PLATFORM_DIR/env/` as "platform" environment variables and are available to a buildpack regardless of the `clear-env` setting. For example, if someone runs `pack build --env HELLO=world`, there is always a `$CNB_PLATFORM_DIR/env/hello` file with the contents of `world`.
 
-* When `clear-env` is set to `true` for a given buildpack, the `lifecycle` will not set user-provided environment variables when running `/bin/detect` or `/bin/build`.
+By default with `clear-env = false`, the lifecycle automatically copies these user-provided environment variables into the current process environment when executing `/bin/detect` and `/bin/build`. This provides a comprehensive stream of all user environment variables for a buildpack that wants easy access to user customization.
-* If a buildpack does allow customization by the end-user through the environment (`clear-env` is `false`), there is a special convention for naming the environment variables recognized by the buildpack, shown in the following table:
 
-| Env Variable           | Description                                       | Detect | Build | Launch |
+Setting `clear-env = true` in the [buildpack.toml](https://github.com/buildpacks/spec/blob/main/buildpack.md#buildpacktoml-toml) prevents this automatic merging, giving a buildpack complete control over which user-provided environment variables to use. This provides maximum isolation and predictability for a buildpack that wants to be more selective about environment variable usage.
+
+For example, if a user has specified the `PATH` environment variable, then a buildpack written in bash might unexpectedly find that tools it relies on such as `cp` aren't the ones it expects. However, setting `clear-env = true` won't change runtime behavior.
+
+* When you set `clear-env` to `true` for a given buildpack, the `lifecycle` writes user-provided environment variables to disk at `$CNB_PLATFORM_DIR/env/` but it won't copy those variables into the buildpack process when running `/bin/detect` or `/bin/build`.
+* If a buildpack uses `clear-env = false` which allows customization by the end-user through the environment, there is a special convention for naming the environment variables recognized by the buildpack, shown in the following table:
+
+| Environment Variable   | Description                                       | Detect | Build | Launch |
 |------------------------|---------------------------------------------------|--------|-------|--------|
 | `BP_*`                 | User-provided variable for buildpack              | [x]    | [x]   |        |
 | `BPL_*`                | User-provided variable for exec.d                 |        |       | [x]    |
 
-### Further Reading
+Buildpack that use `clear-env = true` should filter and export environment variables from `$CNB_PLATFORM_DIR/env/` while warning on the filtered variables. Emitting a warning helps users understand if runtime behavior differs from build time behavior. Sourcing the user environment variables is critical to allowing sub-processes access to credentials.
 
-For more about how environment variables are specified by end-users, see the page for how to [customize buildpack behavior with build-time environment variables](https://buildpacks.io/docs/for-app-developers/how-to/build-inputs/configure-build-time-environment/).
+For example, if a private gem server hosted on `gems.example.com` needs access in a sub-process such as `bundle install`, the user must provide `BUNDLE_GEMS__EXAMPLE__COM=<username>:<password>`. If `clear-env = true` and the buildpack doesn't use platform environment variables, then trying to access that resource would fail.
+
+
+### Further reading
+
+For more about how end-users specify environment variables, see the page for how to [customize buildpack behavior with build-time environment variables](https://buildpacks.io/docs/for-app-developers/how-to/build-inputs/configure-build-time-environment/).

content/docs/for-buildpack-authors/tutorials/basic-buildpack/06_caching.md

@@ -84,7 +84,7 @@ Reusing layer 'examples/node-js:node-js'
 Now, let's implement the caching logic.  We need to record the version of the NodeJS runtime that is used in a build.  On subsequent builds, the caching logic will detect if the NodeJS version is the same as the version in the cached layer.  We restore the previous layer from the cache if the current requested NodeJS version matches the previous NodeJS runtime version.
 
 <!-- test:file=node-js-buildpack/bin/build -->
-```
+```bash
 #!/usr/bin/env bash
 set -eo pipefail
 

content/docs/for-platform-operators/how-to/integrate-ci/tekton.md

@@ -9,16 +9,14 @@ weight=6
 
 [Tekton][tekton] is an open-source CI/CD system running on k8s.
 
-The CNB project has created two reference "tasks" for performing buildpacks builds,
+The CNB project has created a reference "task" for performing buildpacks builds with or without extensions (aka Dockerfile to be applied) top
-both of which use the [lifecycle][lifecycle] directly (i.e. they do not use `pack`).
+of the [lifecycle][lifecycle] tool (i.e. they do not use `pack`).
 
-<!--more-->
+The [Buildpacks Phases Task][buildpacks-phases] calls the individual [lifecycle][lifecycle] binaries (prepare, analyze, detect, restore, build or extender, export), to run each phase in a separate container. 
 
-They are:
+The uid and gid as defined part of the builder image will be used to build the image. 
 
-1. [buildpacks][buildpacks-task] `task` &rarr; This task, which we recommend using, calls the `creator` binary of the
+The different parameters to customize the task are defined part of the task's documentation under the section `parameters`.
-   [lifecycle][lifecycle] to construct, and optionally publish, a runnable image.
-2. [buildpacks-phases][buildpacks-phases] `task` &rarr; This task calls the individual [lifecycle][lifecycle] binaries, to run each phase in a separate container.
 
 ## Set Up
 
@@ -32,28 +30,22 @@ Before we get started, make sure you've got the following installed:
 
 ### 1. Install Tekton and Tekton Dashboard
 
-To start, set up `Tekton`, using the Tekton [documentation][tekton-setup].
+To start, set up a `Tekton` version `>= 1.0`, using the Tekton [documentation][tekton-setup].
 
 We also recommend using the `Tekton dashboard`. To install it, follow the steps in the [dashboard docs][tekton-dashboard-setup], and
 start the dashboard server.
 
+> NOTE: If you run Tekton on a Kind or Minikube Kubernetes cluster, be sure to set the `coschedule` flag to `disabled` within the `feature-flags` ConfigMap.
+
 ### 2. Install the Buildpacks Task
 
-Install the latest version of the buildpacks task (currently `0.6`), by running:
+Install the latest version of the buildpacks task (currently `0.3`), by running:
 
 ```shell
-kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/master/task/buildpacks/0.6/buildpacks.yaml
+kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/refs/heads/main/task/buildpacks-phases/0.3/buildpacks-phases.yaml
 ```
 
-### 3. Install git-clone Task
+### 3. Define and Apply Tekton Pipeline Resources
-
-For our `pipeline`, we will use the `git-clone` task to clone a repository. Install the latest version (currently `0.4`), by running:
-
-```shell
-kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/master/task/git-clone/0.4/git-clone.yaml
-```
-
-### 4. Define and Apply Tekton Pipeline Resources
 
 In order to set up our pipeline, we will need to define a few things:
 
@@ -63,9 +55,9 @@ In order to set up our pipeline, we will need to define a few things:
 - PersistentVolumeClaim &rarr; A `PersistentVolumeClaim` (a general Kubernetes concept, generally shortened to PVC) is
   a request for storage by a user.
 
-#### 4.1 PVCs
+#### 4.1 Persistent Volume
 
-Create a file `resources.yml` that defines a `PersistentVolumeClaim`:
+Create a file `resources.yml` that defines a `PersistentVolumeClaim` able to store the git cloned project and buildpacks files:
 
 ```yaml
 apiVersion: v1
@@ -83,12 +75,12 @@ spec:
 #### 4.2 Authorization
 
 > NOTE: You don't need to use authorization if you are pushing to a local registry. However, if you are pushing to a
-> remote registry (e.g. `DockerHub`, `GCR`), you need to add authorization
+> remote registry (e.g. `DockerHub`, `GCR`, `quay.io), you need to add authorization
 
 Create a `Secret` containing username and password that the build should use to authenticate to the container registry.
 
 ```shell
-kubectl create secret docker-registry docker-user-pass \
+kubectl create secret docker-registry registry-user-pass \
     --docker-username=<USERNAME> \
     --docker-password=<PASSWORD> \
     --docker-server=<LINK TO REGISTRY, e.g. https://index.docker.io/v1/ > \
@@ -103,57 +95,70 @@ kind: ServiceAccount
 metadata:
   name: buildpacks-service-account
 secrets:
-  - name: docker-user-pass
+  - name: registry-user-pass
 ```
+> NOTE: This service account will be used by Tekton in order to mount the credentials as docker config file part of the pod running buildpacks 
 
 #### 4.3 Pipeline
 
 Create a file `pipeline.yml` that defines the `Pipeline`, and relevant resources:
 
 ```yaml
-apiVersion: tekton.dev/v1beta1
+apiVersion: tekton.dev/v1
 kind: Pipeline
 metadata:
   name: buildpacks-test-pipeline
 spec:
   params:
+    - name: git-url
+      type: string
+      description: URL of the project to git clone
+    - name: source-subpath
+      type: string
+      description: The subpath within the git project
     - name: image
       type: string
       description: image URL to push
+    - name: builder
+      type: string
+      description: builder image URL
+    - name: env-vars
+      type: array
+      description: env vars to pass to the lifecycle binaries
   workspaces:
     - name: source-workspace # Directory where application source is located. (REQUIRED)
-    - name: cache-workspace # Directory where cache is stored (OPTIONAL)
   tasks:
     - name: fetch-repository # This task fetches a repository from github, using the `git-clone` task you installed
       taskRef:
-        name: git-clone
+        resolver: http
+        params:
+          - name: url
+            value: https://raw.githubusercontent.com/tektoncd/catalog/refs/heads/main/task/git-clone/0.9/git-clone.yaml
       workspaces:
         - name: output
           workspace: source-workspace
       params:
         - name: url
-          value: https://github.com/buildpacks/samples
+          value: "$(params.git-url)"
-        - name: subdirectory
-          value: ""
         - name: deleteExisting
           value: "true"
-    - name: buildpacks # This task uses the `buildpacks` task to build the application
+    - name: buildpacks # This task uses the `buildpacks phases` task to build the application
       taskRef:
-        name: buildpacks
+        name: buildpacks-phases
       runAfter:
         - fetch-repository
       workspaces:
         - name: source
           workspace: source-workspace
-        - name: cache
-          workspace: cache-workspace
       params:
         - name: APP_IMAGE
           value: "$(params.image)"
         - name: SOURCE_SUBPATH
-          value: "apps/java-maven" # This is the path within the samples repo you want to build (OPTIONAL, default: "")
+          value: "$(params.source-subpath)"
-        - name: BUILDER_IMAGE
+        - name: CNB_BUILDER_IMAGE
-          value: paketobuildpacks/builder:base # This is the builder we want the task to use (REQUIRED)
+          value: "$(params.builder)"
+        - name: CNB_ENV_VARS
+          value: "$(params.env-vars[*])"
     - name: display-results
       runAfter:
         - buildpacks
@@ -185,12 +190,13 @@ kubectl apply -f resources.yml -f sa.yml -f pipeline.yml
 Create a file `run.yml`, which defines the `PipelineRun`:
 
 ```yaml
-apiVersion: tekton.dev/v1beta1
+apiVersion: tekton.dev/v1
 kind: PipelineRun
 metadata:
   name: buildpacks-test-pipeline-run
 spec:
-  serviceAccountName: buildpacks-service-account # Only needed if you set up authorization
+  taskRunTemplate:
+    serviceAccountName: buildpacks-service-account # Only needed if you set up authorization
   pipelineRef:
     name: buildpacks-test-pipeline
   workspaces:
@@ -198,11 +204,16 @@ spec:
       subPath: source
       persistentVolumeClaim:
         claimName: buildpacks-source-pvc
-    - name: cache-workspace
-      subPath: cache
-      persistentVolumeClaim:
-        claimName: buildpacks-source-pvc
   params:
+    - # The url of the git project to clone (REQURED).
+      name: git-url
+      value: https://github.com/buildpacks/samples
+    - # This is the path within the git project you want to build (OPTIONAL, default: "")
+      name: source-subpath
+      value: "apps/java-maven"
+    - # This is the builder image we want the task to use (REQUIRED).
+      name: builder
+      value: cnbs/sample-builder:noble
     - name: image
       value: <REGISTRY/IMAGE NAME, eg gcr.io/test/image > # This defines the name of output image
 ```
@@ -225,27 +236,73 @@ kubectl describe pipelinerun buildpacks-test-pipeline-run
 
 or by using the Tekton Dashboard.
 
-Once the application is successfully built, you can pull it and run it by running:
+Once the application is successfully built, you can pull and run it by running:
 
 ```shell
-docker pull some-output-image
+docker | podman pull <REGISTRY/IMAGE NAME>
+docker | podman run -it <REGISTRY/IMAGE NAME>
 ```
 
-### 7. Cleanup (Optional)
+### 7. Using extension
+
+If your builder image supports the [extension][extension] mechanism able to customize the [build][extension-build] or the [run (aka execution)][extension-run], then you can replay this scenario by simply changing within the `PipelineRun` resource file the builder parameter
+
+```yaml
+apiVersion: tekton.dev/v1
+kind: PipelineRun
+metadata:
+  name: buildpacks-test-pipeline-run
+spec:
+  taskRunTemplate:
+    serviceAccountName: buildpacks-service-account
+  pipelineRef:
+    name: buildpacks-test-pipeline
+  workspaces:
+    - name: source-workspace
+      subPath: source
+      persistentVolumeClaim:
+        claimName: buildpacks-source-pvc
+  params:
+    - name: image
+      value: <REGISTRY/IMAGE NAME, eg gcr.io/test/image>
+    - name: git-url
+      value: https://github.com/quarkusio/quarkus-quickstarts
+    - name: source-subpath
+      value: "getting-started"  
+    - name: builder
+      value: paketobuildpacks/builder-ubi8-base:0.1.30
+    - name: env-vars
+      value:
+      - BP_JVM_VERSION=21
+```
+When the build process starts, then you should see, part of the extender step, if you build a Java runtime (Quarkus, Spring boot, etc) such log messages if the extension installs by example a different JDK
+```txt
+2025-06-27T11:32:25.067007701Z time="2025-06-27T11:32:25Z" level=info msg="Performing slow lookup of group ids for root"
+2025-06-27T11:32:25.067243910Z time="2025-06-27T11:32:25Z" level=info msg="Running: [/bin/sh -c echo ${build_id}]"
+2025-06-27T11:32:25.095150183Z 9e447871-e415-4018-a860-d5a66d925a57
+2025-06-27T11:32:25.096877516Z time="2025-06-27T11:32:25Z" level=info msg="Taking snapshot of full filesystem..."
+2025-06-27T11:32:25.280396774Z time="2025-06-27T11:32:25Z" level=info msg="Pushing layer oci:/kaniko/cache/layers/cached:a035cdb3949daa8f4e7b2c523ea0d73741c7c2d5b09981c261ebae99fd2f3233 to cache now"
+2025-06-27T11:32:25.280572023Z time="2025-06-27T11:32:25Z" level=info msg="RUN microdnf --setopt=install_weak_deps=0 --setopt=tsflags=nodocs install -y openssl-devel java-21-openjdk-devel nss_wrapper which && microdnf clean all"
+2025-06-27T11:32:25.280577315Z time="2025-06-27T11:32:25Z" level=info msg="Cmd: /bin/sh"
+2025-06-27T11:32:25.280578398Z time="2025-06-27T11:32:25Z" level=info msg="Args: [-c microdnf --setopt=install_weak_deps=0 --setopt=tsflags=nodocs install -y openssl-devel java-21-openjdk-devel nss_wrapper which && microdnf clean all]"
+...
+```
+
+### 8. Cleanup (Optional)
 
 To clean up, run:
 
 ```shell
-kubectl delete taskrun --all
+kubectl delete -n default pipelinerun buildpacks-test-pipeline-run
-kubectl delete pvc --all
+kubectl delete -n default pipeline buildpacks-test-pipeline
-kubectl delete pv --all
+kubectl delete -n default buildpacks-phases
+kubectl delete -n default pvc buildpacks-source-pvc
 ```
 
 ## References
 
-The Buildpacks tasks can be accessed at:
+The Buildpacks task can be accessed at:
 
-- [Buildpacks Task Source][buildpacks-task]
 - [Buildpacks Phases Task Source][buildpacks-phases]
 
 Some general resources for Tekton are:
@@ -262,6 +319,8 @@ Some general resources for Tekton are:
 [tekton-setup]: https://tekton.dev/docs/getting-started/
 [tekton-dashboard-setup]: https://tekton.dev/docs/dashboard/
 [tekton-concepts]: https://tekton.dev/docs/concepts/
-[git-clone-task]: https://github.com/tektoncd/catalog/tree/master/task/git-clone
 [kubectl-install]: https://kubernetes.io/docs/tasks/tools/install-kubectl/
 [tekton-auth]: https://tekton.dev/docs/pipelines/auth/
+[extension]: https://buildpacks.io/docs/for-buildpack-authors/tutorials/basic-extension/02_why-dockerfiles/
+[extension-build]: https://buildpacks.io/docs/for-buildpack-authors/tutorials/basic-extension/04_build-dockerfile/
+[extension-run]: https://buildpacks.io/docs/for-buildpack-authors/tutorials/basic-extension/06_run-dockerfile-extend/

content/docs/reference/config/buildpack-config.md

@@ -29,7 +29,10 @@ The schema is as follows:
     Human readable name.
 
   - **`clear-env`** _(boolean, optional, default: `false`)_\
-    Clears user-defined environment variables when `true` on executions of `bin/detect` and `bin/build`.
+    When `true`, prevents the lifecycle from automatically merging user-provided
+    environment variables into the buildpack process environment during
+    `bin/detect` and `bin/build`. User-provided environment variables remain
+    available at `$CNB_PLATFORM_DIR/env/` regardless of this setting.
 
   - **`homepage`** _(string, optional)_\
     Buildpack homepage.

data/podman/setup.yml

@@ -75,7 +75,7 @@
 
         1. Add the SSH key for the podman VM to your keychain:
             ```shell=zsh
-            ssh-add -k "$HOME/.ssh/podman-machine-default"
+            ssh-add -k $(podman system connection list --format="{{.URI}} {{.Identity}}" | grep root |  cut -d' ' -f2)
             ```
         2. Change default connection to use `root`:
             ```shell=zsh