Add ARM64 Support

Signed-off-by: Daniel Mikusa <dan@mikusa.com>

.github/pipeline-descriptor.yml

@@ -2,6 +2,9 @@ github:
   username: ${{ secrets.JAVA_GITHUB_USERNAME }}
   token:    ${{ secrets.PAKETO_BOT_GITHUB_TOKEN }}
 
+helpers:
+  "bin/helper": "$GOMOD/cmd/helper"
+
 codeowners:
 - path:  "*"
   owner: "@paketo-buildpacks/app-monitoring-maintainers"

.github/pipeline-version

@@ -1 +1 @@
-1.39.0
+1.40.0

.github/workflows/pb-create-package.yml

@@ -33,24 +33,13 @@ jobs:
                 set -euo pipefail
 
                 go install -ldflags="-s -w" github.com/paketo-buildpacks/libpak/cmd/create-package@latest
-            - uses: buildpacks/github-actions/setup-tools@v5.6.0
+            - uses: buildpacks/github-actions/setup-tools@v5.7.2
               with:
                 crane-version: 0.19.1
                 yj-version: 5.1.0
-            - name: Install pack
-              run: |
-                #!/usr/bin/env bash
-                # this is coming from a copy of https://github.com/buildpacks/pack/actions/runs/8118576298 stored on box
-                # TODO to revisit when the official one is out
-                set -euo pipefail
-
-                echo "Installing pack experimental"
-
-                mkdir -p "${HOME}"/bin
-                echo "${HOME}/bin" >> "${GITHUB_PATH}"
-
-                curl -L "https://ent.box.com/shared/static/j4d1bfe9uk1sb0i7zjvci0md9xmy41u4" -o ${HOME}/bin/pack
-                chmod +x "${HOME}"/bin/pack
+            - uses: buildpacks/github-actions/setup-pack@v5.7.2
+              with:
+                pack-version: 0.34.2
             - name: Enable pack Experimental
               if: ${{ false }}
               run: |
@@ -219,7 +208,7 @@ jobs:
                 DIGEST: ${{ steps.package.outputs.digest }}
                 GITHUB_TOKEN: ${{ secrets.PAKETO_BOT_GITHUB_TOKEN }}
             - if: ${{ true }}
-              uses: docker://ghcr.io/buildpacks/actions/registry/request-add-entry:5.6.0
+              uses: docker://ghcr.io/buildpacks/actions/registry/request-add-entry:5.7.2
               with:
                 address: docker.io/paketobuildpacks/aternity@${{ steps.package.outputs.digest }}
                 id: paketo-buildpacks/aternity

.github/workflows/pb-tests.yml

@@ -25,20 +25,9 @@ jobs:
                 set -euo pipefail
 
                 go install -ldflags="-s -w" github.com/paketo-buildpacks/libpak/cmd/create-package@latest
-            - name: Install pack
-              run: |
-                #!/usr/bin/env bash
-                # this is coming from a copy of https://github.com/buildpacks/pack/actions/runs/8118576298 stored on box
-                # TODO to revisit when the official one is out
-                set -euo pipefail
-
-                echo "Installing pack experimental"
-
-                mkdir -p "${HOME}"/bin
-                echo "${HOME}/bin" >> "${GITHUB_PATH}"
-
-                curl -L "https://ent.box.com/shared/static/j4d1bfe9uk1sb0i7zjvci0md9xmy41u4" -o ${HOME}/bin/pack
-                chmod +x "${HOME}"/bin/pack
+            - uses: buildpacks/github-actions/setup-pack@v5.7.2
+              with:
+                pack-version: 0.34.2
             - name: Enable pack Experimental
               if: ${{ false }}
               run: |

.github/workflows/pb-update-appinternals-java.yml

@@ -19,7 +19,7 @@ jobs:
                 set -euo pipefail
 
                 go install -ldflags="-s -w" github.com/paketo-buildpacks/libpak/cmd/update-buildpack-dependency@latest
-            - uses: buildpacks/github-actions/setup-tools@v5.6.0
+            - uses: buildpacks/github-actions/setup-tools@v5.7.2
               with:
                 crane-version: 0.19.1
                 yj-version: 5.1.0

.gitignore

@@ -1,4 +1,4 @@
-# Copyright 2018-2022 the original author or authors.
+# Copyright 2018-2020 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -13,6 +13,8 @@
 # limitations under the License.
 
 bin/
+linux/
 dependencies/
 package/
 scratch/
+

README.md

@@ -13,13 +13,17 @@ The buildpack will do the following for Java applications:
 * Contributes a Java agent to a layer and configures `$JAVA_TOOL_OPTIONS` to use it
 * Transforms the contents of the binding secret to environment variables with the pattern `<KEY>=<VALUE>`
 
+## Notes
+
+While this buildpack is packaged to support ARM64 there are no upstream bindings for Aternity on ARM64. If you try to use this buildpack on ARM64 it will fail attempting to download ARM64 binaries that do not exist. Please contact the vendor if you'd like to see ARM64 support. The buildpack is positioned to support it as soon as it is available upstream.
+
 ## Bindings
 The buildpack optionally accepts the following bindings:
 
 ### Type: `dependency-mapping`
-|Key                   | Value   | Description
-|----------------------|---------|------------
-|`<dependency-digest>` | `<uri>` | If needed, the buildpack will fetch the dependency with digest `<dependency-digest>` from `<uri>`
+| Key                   | Value   | Description                                                                                       |
+| --------------------- | ------- | ------------------------------------------------------------------------------------------------- |
+| `<dependency-digest>` | `<uri>` | If needed, the buildpack will fetch the dependency with digest `<dependency-digest>` from `<uri>` |
 
 ## License
 

buildpack.toml

@@ -1,4 +1,4 @@
-# Copyright 2018-2022 the original author or authors.
+# Copyright 2018-2024 the original author or authors.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -28,7 +28,7 @@ api = "0.7"
     uri = "https://github.com/paketo-buildpacks/aternity/blob/main/LICENSE"
 
 [metadata]
-  include-files = ["LICENSE", "NOTICE", "README.md", "bin/build", "bin/detect", "bin/helper", "bin/main", "buildpack.toml"]
+  include-files = ["LICENSE", "NOTICE", "README.md", "linux/amd64/bin/build", "linux/amd64/bin/detect", "linux/amd64/bin/main", "linux/amd64/bin/helper", "linux/arm64/bin/build", "linux/arm64/bin/detect", "linux/arm64/bin/main", "linux/arm64/bin/helper", "buildpack.toml"]
   pre-package = "scripts/build.sh"
 
   [[metadata.dependencies]]
@@ -37,18 +37,20 @@ api = "0.7"
     name = "Aternity AppInternals Java Agent"
     purl = "pkg:generic/aternity-appinternals-java-agent@11.8.5?arch=amd64"
     sha256 = "8242054c1828196a5605ac8225f2fdf3a947931c3e4db6e2e4b26df70bbaffe0"
-    stacks = ["io.buildpacks.stacks.bionic", "io.paketo.stacks.tiny", "*"]
+    stacks = ["*"]
     uri = "https://pcf-instrumentation-download.steelcentral.net/riverbed-appinternals-agent-11.8.5_BL527.zip"
     version = "11.8.5"
 
     [[metadata.dependencies.licenses]]
       uri = "https://www.riverbed.com/document/legal/riverbed-end-user-license-agreement.pdf"
 
 [[stacks]]
-  id = "io.buildpacks.stacks.bionic"
+  id = "*"
 
-[[stacks]]
-  id = "io.paketo.stacks.tiny"
+[[targets]]
+  arch = "amd64"
+  os = "linux"
 
-[[stacks]]
-  id = "*"
+[[targets]]
+  arch = "arm64"
+  os = "linux"

scripts/build.sh

@@ -1,17 +1,23 @@
 #!/usr/bin/env bash
-
 set -euo pipefail
 
-GOOS="linux" go build -ldflags='-s -w' -o bin/helper github.com/paketo-buildpacks/aternity/v4/cmd/helper
-GOOS="linux" go build -ldflags='-s -w' -o bin/main github.com/paketo-buildpacks/aternity/v4/cmd/main
+GOMOD=$(head -1 go.mod | awk '{print $2}')
+GOOS="linux" GOARCH="amd64" go build -ldflags='-s -w' -o "linux/amd64/bin/helper" "$GOMOD/cmd/helper"
+GOOS="linux" GOARCH="arm64" go build -ldflags='-s -w' -o "linux/arm64/bin/helper" "$GOMOD/cmd/helper"
+GOOS="linux" GOARCH="amd64" go build -ldflags='-s -w' -o linux/amd64/bin/main "$GOMOD/cmd/main"
+GOOS="linux" GOARCH="arm64" go build -ldflags='-s -w' -o linux/arm64/bin/main "$GOMOD/cmd/main"
 
 if [ "${STRIP:-false}" != "false" ]; then
-  strip bin/helper bin/main
+  strip linux/amd64/bin/helper linux/arm64/bin/helper
+  strip linux/amd64/bin/main linux/arm64/bin/main
 fi
 
-if [ "${COMPRESS:-false}" != "false" ]; then
-  upx -q -9 bin/helper bin/main
+if [ "${COMPRESS:-none}" != "none" ]; then
+  $COMPRESS linux/amd64/bin/helper linux/arm64/bin/helper
+  $COMPRESS linux/amd64/bin/main linux/arm64/bin/main
 fi
 
-ln -fs main bin/build
-ln -fs main bin/detect
+ln -fs main linux/amd64/bin/build
+ln -fs main linux/arm64/bin/build
+ln -fs main linux/amd64/bin/detect
+ln -fs main linux/arm64/bin/detect