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2024 01 31 binary distribution

AlgoKit CLI binary distribution

  • Status: Approved
  • Owner: Altynbek Orumbayev (MakerX)
  • Deciders: Alessandro (Algorand Foundation), Rob Moore (MakerX), MakerX team
  • Date created: 2024-01-31
  • Date decided: 2024-02-01
  • Date updated: 2024-02-05

Context

The following ADR is a continuation of native binaries ADR. With initial workflows implemented, the goal is to determine the best way to distribute the native binaries to the end users.

Requirements

  • The solution should support a wide variety of Linux distributions, macOS (both Apple Silicon and Intel architectures), and Windows.
  • The solution should allow distribution of native binaries via os specific package managers brew, snap, winget.

Technical Constraints

  • Pyinstaller binaries are dependend on the architecture and the OS. Github Actions mainly support x86-64 architectures. This means that we need a self hosted runner to build binaries for arm64 architectures OR use an alternative CI provider which has access to arm64 and other architectures inside runners. Based on recent announcement made at the date of submission of initial draft of this ADR, GitHub now supports mac os ARM runners on all OSS plans. This means we can target arm64 macos binaries using the default macos runners and potentially reuse them to build arm64 linux binaries using QEMU and/or buildx from Docker. Hence this is no longer a constraint - see post.
  • Codesigning is a recommended practice for secure distribution and would need to be implemented on top of the initial workflows introduced as part of the implementation of the native binaries ADR.

Options

Option 1 - Binaries are only available via dedicated package managers using OSS solutions for multi architecture support

This approach assumes that native binaries are never available for direct consumption but instead extra tailored per each selected package manager. Additionally this approach assumes using OSS solutions for multi architecture support. Primarily using a QEMU/buildx based actions to build the binaries for different linux architectures, using paid m1 github runner for arm macos binaries, using default macos runner for x86 macos binaries and using default windows runner for x86-64 windows binaries. Based on recent announcement from GitHub - ARM runners on mac are now available on all OSS plans, given that we agreed that we arent support ARM linux, mac on ARM can be compiled on ARM mac runners and windows can be compiled and targeting x86-64 using default runners. Hence removing all major constrains and difficulties of this approach.

Diagram:

flowchart
  n1["Release pipeline flow"]
    n1 --- n2["Python wheel build & test validation, runs on [3.10, 3.11, 3.12 on windows, mac, ubuntu]"]
    n2 --- n3["Build binaries"]
    n3 --- n4["Linux"]
    n3 --- n5["Mac"]
    n3 --- n6["Windows"]
    n4 --- n7["ubuntu-latest x86-64"]
    n7 --- n9["Upload artifacts"]
    n5 --- n10["macos-latest x86-64"]
    n5 --- n11["macos-large-latest ARM"]
    n6 --- n12["windows-latest (x86-64)"]
    n10 --- n9
    n11 --- n9
    n12 --- n9
    n9 --- n13["Distribution"]
    n13 --- n14["pypi pure python wheel"]
    n13 --- n15["snap"]
    n13 --- n16["brew"]
    n13 --- n17["winget"]
    n17 --- n18["refresh manifest"]
    n18 --- n19["submit release PR to winget community repo"]
    n16 --- n20["refresh cask definition"]
    n20 --- n21["submit pr to algorandfoundation/tap"]
    n15 --- n22["x86-64"]
    n22 --- n23["build and submit x86-64 snap on ubuntu-latest runner"]
    n23 --- n24["publish snap"]
General pros and cons

Pros

  • Ability to rely on package manager to handle installation, updates and removal of the binaries
  • OSS solutions for multi architecture support are available and can be used to build the binaries for different architectures on Linux using QEMU

Cons

  • Assuming we are targeting x86-64/ARM64 on mac, x86-64 on Windows and x86-64 on Linux, no major cons are identified with this approach other than certain non deteministic factos around initial setup of Apple dev account, approval of PR on winget repo and setup of the Snapstore profile.
Snap

Pros

  • Snap is available on all major Linux distributions
  • Ubuntu provides a Launchpad platform that simplifies compiling snaps on different architectures remotely
  • Snap supports distribution of pyinstaller binaries (verified in a PoC on a fork of algokit-cli)
  • Has flexible configuration options over release channels (edge, beta, release candidate, production/stable).

Cons

  • Snap provides a native support for pyhon applications which may be simpler to use than pyinstaller rather than distributing the binaries as it allows us to rely directly on remote Launchpad builds instead of pre-building the binaries per each architecture. No longer an issue given latest decision not to support ARM64 linux given that pipx is still gonna be a first class citizen alternative.
  • If we are to distribute pyinstaller binaries, the binaries itself need to be cross compiled on target architectures. Currently we get x86-64 binaries with ubuntu runners, however we would need to introduce extra self hosted runners to get arm64 binaries. In this case we would need to run building of binaries AND building of snaps in build matrices consiting of default ubuntu runners and self hosted arm64 runners. This will increase the build time and complexity of the build process. No longer an issue given latest decision not to support ARM64 linux given that pipx is still gonna be a first class citizen alternative.
Brew

Pros

  • A flow for distributing algokit wheel via brew is already established
  • Brew supports distribution of pyinstaller binaries (verified in a PoC on a fork of algokit-cli)
  • Will require minor changes in the existing brew workflow to operate with binary artifacts instead of wheel artifacts

Cons

  • Algokit cli relies on dependencies that are not fat binaries. This means we can't use pyinstaller to target universal2 architecture and instead need to build the binaries for each architecture separately. Hence using a paid ARM macos runner is a simple solution to get binaries for Apple Silicon. No longer an issue given announcement from Github that ARM runners are now available on all OSS plans.
  • Codesigning is required for distribution of binaries via brew. This means that we need to have a valid Apple Developer account and a valid certificate to sign the binaries. While this is a good practice regardless, listing this as a con given non deterministic nature of obtaining a valid certificate from Apple.
  • Separate ARM worker for apple silicon binaries is required. Github provides beta version of such runners for with paid billing plans. No longer paid given recent announcement from Github.
Winget

Pros

  • Winget is available on all major Windows distributions
  • Winget supports distribution of pyinstaller binaries and in fact it does not support distribution of python wheels, making binaries a good candidate for winget.
  • Will require minor changes in the existing brew workflow to convert pyinstaller .exe binaries to winget .msi binaries

Cons

  • Winget requires contributing the manifest file to an open source repository which may cause potential delays in the distribution of the binaries as each PR needs to be reviewed and approved by the maintainers of the repository.
Conclusion

All of the above package managers are viable and can be used to distribute the pyinstaller build binaries. Requirement on supporting additional architectures like arm64 introduce unique challenges that ideally should be addressed by introducing custom self hosted runners to the build matrix. This will increase the complexity of the build process and will require additional maintenance of the runners. Given recent decisions around ARM linux support, we can safely assume that this is the most balanced approach that will allow us to distribute the binaries for all supported architectures without introducing additional complexity of maintaining self hosted runners or implementing an in-house self-update mechanism for binaries.

Option 2 - Binaries are only available via dedicated package managers using self hosted runners for multi architecture support

This is identical to the option 1 with the exception that we are using self hosted runners to build the binaries for different architectures.

Diagram:

flowchart
    n1["Release pipeline flow"]
    n1 --- n2["Python wheel build & test validation (runs on [3.10, 3.11, 3.12 on windows, mac, ubuntu]"]
    n2 --- n3["Build binaries"]
    n3 --- n4["Linux"]
    n3 --- n5["Mac"]
    n3 --- n6["Windows"]
    n4 --- n7["self-hosted aarch64-ubuntu22.04"]
    n4 --- n8["self-hosted armv7-ubuntu22.04"]
    n7 --- n9["Upload artifacts"]
    n5 --- n10["macos-latest x86-64"]
    n5 --- n11["macos-large-latest ARM (paid worker)"]
    n6 --- n12["windows-latest (x86-64)"]
    n8 --- n9
    n10 --- n9
    n11 --- n9
    n12 --- n9
    n9 --- n13["Distribution"]
    n13 --- n14["pypi pure python wheel"]
    n13 --- n15["snap"]
    n13 --- n16["brew"]
    n13 --- n17["winget"]
    n17 --- n18["refresh manifest"]
    n18 --- n19["submit release PR to winget community repo "]
    n16 --- n20["refresh cask definition (can use conditional that auto picks either ARM or Intel based artifacts)"]
    n20 --- n21["submit pr to algorandfoundation/tap"]
    n15 --- n22["aarch64"]
    n15 --- n23["armv7"]
    n22 --- n24["build snap on self hosted runner for aarch64 architecture"]
    n23 --- n25["build snap on self hosted runner for armv7 architecture"]
    n24 --- n26["publish snap"]
    n25 --- n26
General pros and cons

Pros

  • Simplified build matrix as we can simply define additional runs-on for each architecture we want to support to target our custom self hosted runners
  • Same pros as option 1

Cons

  • The main drawback for self hosted runners is requirements on additional maintenance, very careful configuration and security considerations. This is a non trivial task and will require additional resources to maintain implement. Github itself generally does not recommend using them for public repositories as forked repositories can potentially gain access to the self hosted runners. There is a lot of workarounds to this issue, but it is still a non trivial task to implement and maintain.

Option 3 - Binaries are available for direct consumption as self contained executables

This approach assumes that native binaries are available for direct consumption as self contained executables. This means that the binaries are not distributed via package managers but instead are available for direct download from the Algorand Foundation website/dedicated installer script that needs to be introduce. The script can figure out the operating system, architecture and pull the correct binary from public github releases page.

Diagram:

flowchart
    n1["Release pipeline flow"]
    n1 --- n2["Python wheel build & test validation (runs on [3.10, 3.11, 3.12 on windows, mac, ubuntu]"]
    n2 --- n3["Build binaries"]
    n3 --- n4["Linux"]
    n3 --- n5["Mac"]
    n3 --- n6["Windows"]
    n4 --- n7["ubuntu-latest"]
    n7 --- n9["Upload artifacts"]
    n5 --- n10["macos-latest x86-64"]
    n5 --- n11["macos-large-latest ARM"]
    n6 --- n12["windows-latest (x86-64)"]
    n10 --- n9
    n11 --- n9
    n12 --- n9
    n9 --- n13["Distribution"]
    n13 --- n14["pypi pure python wheel"]
    n13 --- n15["binaries"]
    n15 --- n16["Windows"]
    n15 --- n17["Linux"]
    n15 --- n18["Mac"]
    n16 --- n19["Transform to msi installer"]
    n17 --- n20["codesign"]
    n19 --- n20
    n18 --- n21["transform to .pkg installer"]
    n21 --- n20
    n20 --- n22["append to github release"]
General pros and cons

Pros

  • Ability to distribute binaries for all supported architectures without extra complexity of maintaining distributions via package managers brew, snap, winget
  • Self update mechanism can be implemented within the algokit cli to check for updates and pull newer versions of the binaries. This will allow users to always have the latest version of the binaries without the need to wait for the package manager to update the binaries.

Cons

  • Users who prefer to use package managers will need to manually install the binaries and keep track of the updates
  • Self update mechanism will require additional maintenance and testing to ensure correct handling of the updates

Option 4 - Binaries are available for direct consumption as self contained executables, dedicated package managers distribute the wheels

This is potentially the most complex approach and it combines option 1 and option 3. This means that we are distributing the binaries for direct consumption as self contained executables and additionally we are distributing the wheels via package managers.

Pros

  • Ability to distribute binaries for all supported architectures without extra complexity of maintaining distributions via package managers brew, snap, winget
  • Ability to rely on python optimizations in dedicated package managers like snap and brew to distribute the wheel artifacts

Cons

  • The major drawback with the approach is that it does not eliminate dependency on python to run the algokit cli when using package managers which goes against initial goals of this outcome (removing requirement on having python installed on user's machine)
  • Self update mechanism will require additional maintenance and testing to ensure correct handling of the updates and is at risk of not being used that often if users will still primarily rely on package managers or pipx to install the algokit cli
  • Deminishes the value of having self contained binaries as users will still need to have python installed on their machines to run the algokit cli if they prefer to use package managers

Preferred option

Notes from discussion on 2024-02-01

  • We are not supporting Windows ARM and Ubuntu ARM
  • We are not using self-hosted runners approach
  • Pending on key decision from Algorand Foundation on whether we want to have brew, snap, winget distribution vs self contained binary executables.

Based on the above, the most balanced option in terms of user experience and maintenance complexity is Option 1. This option allows us to distribute the binaries for all supported architectures without introducing additional complexity of maintaining self hosted runners or implementing an in-house self-update mechanism for binaries. Additionally each individual package manager has unique capabilities simplifying aggregation of metrics and controlling the release process.

Selected option

Option 1

Next Steps

  1. Splitting ADR into self contained work items to parallelize the implementation of the selected option
  2. Productizing PoCs implemented as part of this ADR to finalize integrations with winget, snap and brew
  3. Aggregating requirements for obtaining accesses to the package managers and developer certificates for codesigning
  4. Implementing codesigning mechanisms and finalizing implementation with detailed documentation of new installation options for users

Open questions

Do we want to build the binaries for ARM based windows machines? If so, this implies that we need to introduce self hosted runners for windows as well given that there seems to be no OSS options to build the binaries for ARM based windows machines in Github Actions. Clarified by decision to not support ARM versions of linux and windows given alternative options like pipx still being available as a first class citizen.