Building on aarch64

[zzart]

Summary

Getting

[analyzer] exec /cnb/lifecycle/analyzer: exec format error
ERROR: failed to build: executing lifecycle. This may be the result of using an untrusted builder: failed with status code: 1

when trying to build the example app.

---

Reproduction

Steps

On raspberrypi

$ uname -a
Linux raspberrypi 5.15.61-v8+ #1579 SMP PREEMPT Fri Aug 26 11:16:44 BST 2022 aarch64 GNU/Linux

Installed pack with

(curl -sSL "https://github.com/buildpacks/pack/releases/download/v0.30.0-pre1/pack-v0.30.0-pre1-linux-arm64.tgz" | sudo tar -C /usr/local/bin/ --no-same-owner -xzv pack)

Then followed the instructions form https://buildpacks.io/docs/app-journey/

Current behavior

Expected behavior

App should build .
My initial report is here : dokku/dokku#5854

---

Environment

pack info

 pack report
Pack:
  Version:  0.30.0-pre1+git-18662b2.build-4267
  OS/Arch:  linux/arm64

Default Lifecycle Version:  0.16.0

Supported Platform APIs:  0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12

Config:

$ docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc.)
    Version:  v0.10.4
    Path:     /usr/libexec/docker/cli-plugins/docker-buildx
  compose: Docker Compose (Docker Inc.)
    Version:  v2.17.2
    Path:     /usr/libexec/docker/cli-plugins/docker-compose

Server:
 Containers: 4
  Running: 2
  Paused: 0
  Stopped: 2
 Images: 16
 Server Version: 23.0.2
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 1e1ea6e986c6c86565bc33d52e34b81b3e2bc71f
 runc version: v1.1.4-0-g5fd4c4d
 init version: de40ad0
 Security Options:
  seccomp
   Profile: builtin
  cgroupns
 Kernel Version: 5.15.61-v8+
 Operating System: Debian GNU/Linux 11 (bullseye)
 OSType: linux
 Architecture: aarch64
 CPUs: 4
 Total Memory: 7.629GiB
 Name: raspberrypi
 ID: 2f58712b-ce85-4f69-a914-6dad29d287df
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: No memory limit support
WARNING: No swap limit support

[joe-kimmel-vmw]

Hi @zzart - thanks for checking out our pre-release! I think this is actually fixed in the very recently released pre.2. Can you confirm that if you update to "https://github.com/buildpacks/pack/releases/download/v0.30.0-pre2/pack-v0.30.0-pre2-linux-arm64.tgz" the issue is resolved?

[zzart]

hi @joe-kimmel-vmw thanks for quick response. I've tested pre.2. and still no luck.

~/samples/apps/java-maven $ pack build myapp --builder cnbs/sample-builder:jammy
jammy: Pulling from cnbs/sample-builder
Digest: sha256:6c7164e531a42dc71aa0fb5bba7333e49a9cab1bbc766c93b58358cff8968146
Status: Image is up to date for cnbs/sample-builder:jammy
jammy: Pulling from cnbs/sample-stack-run
Digest: sha256:a169a8c09f43afa7c50c17c91d6dbd319721f97bf7a36560eedc9d2331e491e0
Status: Image is up to date for cnbs/sample-stack-run:jammy
0.15.2: Pulling from buildpacksio/lifecycle
Digest: sha256:e9e6012cf38bf4904f15c0059fe8de9dc79a87279c9ae9b4f4b7a15e81103d7b
Status: Image is up to date for buildpacksio/lifecycle:0.15.2
===> ANALYZING
[analyzer] exec /cnb/lifecycle/analyzer: exec format error
ERROR: failed to build: executing lifecycle: failed with status code: 1
raspberrypi:~/samples/apps/java-maven $ pack report
Pack:
  Version:  0.30.0-pre2+git-b56634e.build-4601
  OS/Arch:  linux/arm64

Default Lifecycle Version:  0.17.0-pre.2

Supported Platform APIs:  0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 0.10, 0.11, 0.12

Config:

[natalieparellano]

Hey @zzart thanks for opening this issue - I think the problem is that even though you're running a pack that's compiled for arm64, the cnbs/sample-builder:jammy is amd64. We have long wanted to publish arm64 sample builders, (buildpacks/samples#114) but this is sadly still awaiting someone with the bandwidth to drive it to completion (if you are such a person we would love to have your help!).

I do know that some folks have had success with arm64 builds - @jericop or @dmikusa might be able to provide more info on how to source those builders.

[zzart]

Hey @natalieparellano thanks for a quick reply. I don't have a bandwidth for this type of work but I appreciate your explanation of the issue. I can surly offer some help when it comes to testing it.

[jjbustamante]

Hi @zzart.

Maybe this links could be helpful for you if you are looking for ARM builders:

• https://github.com/dmikusa/paketo-arm64
• https://github.com/dashaun/paketo-arm64

And this slack channel thread where we were discussing some stuff for ARM support

[jjbustamante]

Duplicate of #1570

[jjbustamante]

We are working in different initiatives to add support for ARM architecture. I am closing this issue but we will keep track of it on #1570.

Also this RFC is going into the same direction