An example of AWS Greengrass used in a miniature fulfillment center.

aws-samples, updated 🕥 2023-02-10 21:11:34

The Greengrass mini-fulfillment center example

At re:Invent 2016 AWS Greengrass was introduced to the world. This miniature fulfillment center demonstration was used to display what could be done with Greengrass when announced. It has since been upgraded to use the publicly available version of Greengrass v1.

A video was taken of the completed and operational Greengrass-based miniature fulfillment center, a.k.a. "dual robot arm demo" in action at re:Invent. Since re:Invent this demo and example has continued to evolve. It has been the seed for other demos and now supports Greengrass discovery capabilities.

The artifacts, example code, and instructions to construct this demo are available in this repository as an example. We look forward to seeing what you'll do with it.

Directory Structure and Noteworthy Files

aws-greengrass-mini-fulfillment/ +- docs/ | +- BOM.md -- the bill of materials necessary for construction | +- CONSTR.md -- instructions for physical construction (TODO) | +- INSTALL.md -- instructions for software provisioning and install | +- OPERATE.md -- instructions for operation of the demo | +- TIDBITS.md -- tiny pieces of setup information that might be helpful | +- TROUBLE.md -- troubleshooting of install and operation | +- groups/ | +- cert_setup.py -- generates local certificates used by Greengrass groups | +- group_setup.py -- provisions and deploys example Greengrass groups | +- servo_setup.py -- prepares the servo communication code for example use | | | +- arm/ -- the code and config necessary for an arm host | | +- ggd/ -- the Greengrass Devices that will be run on the Host | | | +- servo/ -- the servo communications libraries | | +- inv_arm/ -- the specific config and certs for the `inv_arm` group | | +- sort_arm/ -- the specific config and certs for the `sort_arm` group | | | +- lambda/ -- the Lambda functions used in the Greengrass groups | | | +- master/ -- the directory of the `master` Greengrass group | +- certs/ -- the group AWS IoT and local certs to be copied to Core | +- ggd/ -- the Greengrass Devices that will be run on the Host | +- certs/ -- the client certs used by GG devices | +- flask/ -- where the web GG device gets files to serve | +- servo/ -- the servo communications libraries | +- models/ -- the models used to 3D print components of this demo +- LICENSE +- README.md -- this file +- requirements.txt

After following the installation instructions, each directory contains all the files necessary to support one of the three Demo groups' hosts. There are three Greengrass Groups named:

| Group | Host Name | Description | | :---: | :---: | :--- | | inv_arm | inv_arm-pi | contains the Inventory Arm devices and the Inventory Arm Core | | master | master-pi | contains both the Conveyor Belt devices and the Master Core | | sort_arm | sort_arm-pi | contains the Sorting Arm devices and the Sort Arm Core |

The demo behavior is broken into the concept of a series of simple control stages organized by Group. Those stages are:

| Group | Control Stages | | :--- | :--- | | Inventory Arm | ... > Home > Finding > Pickup > Shipping > Home > ... | | Master | ..conveyor direction.. | | Sorting Arm | ... > Home > Finding > Pickup > Sorting > Home > ... |

As shown in the video above, even with these simple stages the interaction between the three Groups displays complex, cohesive, and coordinated behaviors.

This is possible because the whole system is modeled as a collection of micro-services. Those micro-services then leverage high-speed local messaging to enable communication within and between groups, as well as transactional state control using local device shadows.

The high-level, local architecture of the demo is: mini-fulfillment demo architecture

Master/Conveyor Host

There are six processes on this host: - the Master Greengrass Core - the heartbeat Greengrass Device (GGD) process - the bridge GGD process - the belt GGD process -- manages the conveyor belt servo - the button GGD process -- manages the button box's red, green, and white control buttons - the web GGD process

Within the Master Core, these are the Lambda functions: - MasterErrorDetector -- this function monitors local telemetry and detects any error states - MasterBrain -- this function monitors the fabric of telemetry coming from the bridges and the local GGDs. This function will decide what to do with respect to current telemetry and errors in the system

There is a web visualization on this host. If one browses to: <master_ip>:5000 a visualization that reads data from the Master Core can be seen.

Inventory Arm Host

There are three processes on this host: - the Inventory Arm Greengrass Core - the heartbeat Greengrass Device (GGD) process - the arm GGD process

Within the Inventory Arm Core, this is the Lambda function: - ArmErrorDetector -- this function monitors local telemetry and detects any error states

Sorting Arm Host

There are three processes on this host: - the Sorting Arm Greengrass Core - the heartbeat Greengrass Device (GGD) process - the arm GGD process

Within the Sort Arm Core, this is the Lambda function: - ArmErrorDetector -- this function monitors local telemetry and detects any error states

Noteworthy Files

There are some noteworthy files in the repository that centralize a fair amount of work around the instantiation of this demonstration. - groups/group_setup.py – performs all provisioning of each host's Greengrass Group. This file has commands that are useful when instantiating this demo and that demonstrate the use of the Greengrass REST APIs. - create <group_type> <config_file> – creates a Greengrass Group for a given group type and configuration file. Also stores all of the provisioning artifacts (i.e. GroupID, CoreDefinitionId, etc.) in the local configuration file. - deploy <config_file> – deploys a previously provisioned Greengrass Group - clean-all <config_file> – cleans up the entirety of a Greengrass Group and the locally stored provisioning artifacts. - groups/servo_setup.py – prepares the servo manufacturer's communication library for use on a Raspberry Pi with the Raspbian OS.

DIY

If you'd like to build a copy of this demo yourself you'll want to read both the installation instructions and the construction instructions. Please share any feedback you have or questions you run into here as Issues.

Special Thanks

Brett Francis and Todd Varland would like to thank the following. Without their help and existence we simply would not have made this demo.

The Francis Family, The Varland Family, gg-group-setup, ROBOTIS, Servode, Pretty Lights, Sigur Ros, Flume - Insanity, Amazon.com, HBO Silicon Valley, The Greengrass Developers

Issues

Bump ipython from 5.4.1 to 8.10.0

opened on 2023-02-10 21:11:29 by dependabot[bot]

Bumps ipython from 5.4.1 to 8.10.0.

Release notes

Sourced from ipython's releases.

See https://pypi.org/project/ipython/

We do not use GitHub release anymore. Please see PyPI https://pypi.org/project/ipython/

7.9.0

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7.8.0

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7.7.0

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7.6.1

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7.6.0

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7.5.0

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7.4.0

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7.3.0

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7.2.0

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7.1.1

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7.1.0

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7.0.1

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7.0.0

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7.0.0-doc

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7.0.0rc1

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7.0.0b1

No release notes provided.

... (truncated)

Commits
  • 15ea1ed release 8.10.0
  • 560ad10 DOC: Update what's new for 8.10 (#13939)
  • 7557ade DOC: Update what's new for 8.10
  • 385d693 Merge pull request from GHSA-29gw-9793-fvw7
  • e548ee2 Swallow potential exceptions from showtraceback() (#13934)
  • 0694b08 MAINT: mock slowest test. (#13885)
  • 8655912 MAINT: mock slowest test.
  • a011765 Isolate the attack tests with setUp and tearDown methods
  • c7a9470 Add some regression tests for this change
  • fd34cf5 Swallow potential exceptions from showtraceback()
  • Additional commits viewable in compare view


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Bump cryptography from 3.3.2 to 39.0.1

opened on 2023-02-08 00:45:10 by dependabot[bot]

Bumps cryptography from 3.3.2 to 39.0.1.

Changelog

Sourced from cryptography's changelog.

39.0.1 - 2023-02-07


* **SECURITY ISSUE** - Fixed a bug where ``Cipher.update_into`` accepted Python
  buffer protocol objects, but allowed immutable buffers. **CVE-2023-23931**
* Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.0.8.

.. _v39-0-0:


39.0.0 - 2023-01-01

  • BACKWARDS INCOMPATIBLE: Support for OpenSSL 1.1.0 has been removed. Users on older version of OpenSSL will need to upgrade.
  • BACKWARDS INCOMPATIBLE: Dropped support for LibreSSL < 3.5. The new minimum LibreSSL version is 3.5.0. Going forward our policy is to support versions of LibreSSL that are available in versions of OpenBSD that are still receiving security support.
  • BACKWARDS INCOMPATIBLE: Removed the encode_point and from_encoded_point methods on :class:~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicNumbers, which had been deprecated for several years. :meth:~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey.public_bytes and :meth:~cryptography.hazmat.primitives.asymmetric.ec.EllipticCurvePublicKey.from_encoded_point should be used instead.
  • BACKWARDS INCOMPATIBLE: Support for using MD5 or SHA1 in :class:~cryptography.x509.CertificateBuilder, other X.509 builders, and PKCS7 has been removed.
  • BACKWARDS INCOMPATIBLE: Dropped support for macOS 10.10 and 10.11, macOS users must upgrade to 10.12 or newer.
  • ANNOUNCEMENT: The next version of cryptography (40.0) will change the way we link OpenSSL. This will only impact users who build cryptography from source (i.e., not from a wheel), and specify their own version of OpenSSL. For those users, the CFLAGS, LDFLAGS, INCLUDE, LIB, and CRYPTOGRAPHY_SUPPRESS_LINK_FLAGS environment variables will no longer be respected. Instead, users will need to configure their builds as documented here_.
  • Added support for :ref:disabling the legacy provider in OpenSSL 3.0.x<legacy-provider>.
  • Added support for disabling RSA key validation checks when loading RSA keys via :func:~cryptography.hazmat.primitives.serialization.load_pem_private_key, :func:~cryptography.hazmat.primitives.serialization.load_der_private_key, and :meth:~cryptography.hazmat.primitives.asymmetric.rsa.RSAPrivateNumbers.private_key. This speeds up key loading but is :term:unsafe if you are loading potentially attacker supplied keys.
  • Significantly improved performance for :class:~cryptography.hazmat.primitives.ciphers.aead.ChaCha20Poly1305

... (truncated)

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Bump certifi from 2017.7.27.1 to 2022.12.7

opened on 2022-12-08 00:48:02 by dependabot[bot]

Bumps certifi from 2017.7.27.1 to 2022.12.7.

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Bump numpy from 1.13.0 to 1.22.0

opened on 2022-06-22 02:32:37 by dependabot[bot]

Bumps numpy from 1.13.0 to 1.22.0.

Release notes

Sourced from numpy's releases.

v1.22.0

NumPy 1.22.0 Release Notes

NumPy 1.22.0 is a big release featuring the work of 153 contributors spread over 609 pull requests. There have been many improvements, highlights are:

  • Annotations of the main namespace are essentially complete. Upstream is a moving target, so there will likely be further improvements, but the major work is done. This is probably the most user visible enhancement in this release.
  • A preliminary version of the proposed Array-API is provided. This is a step in creating a standard collection of functions that can be used across application such as CuPy and JAX.
  • NumPy now has a DLPack backend. DLPack provides a common interchange format for array (tensor) data.
  • New methods for quantile, percentile, and related functions. The new methods provide a complete set of the methods commonly found in the literature.
  • A new configurable allocator for use by downstream projects.

These are in addition to the ongoing work to provide SIMD support for commonly used functions, improvements to F2PY, and better documentation.

The Python versions supported in this release are 3.8-3.10, Python 3.7 has been dropped. Note that 32 bit wheels are only provided for Python 3.8 and 3.9 on Windows, all other wheels are 64 bits on account of Ubuntu, Fedora, and other Linux distributions dropping 32 bit support. All 64 bit wheels are also linked with 64 bit integer OpenBLAS, which should fix the occasional problems encountered by folks using truly huge arrays.

Expired deprecations

Deprecated numeric style dtype strings have been removed

Using the strings "Bytes0", "Datetime64", "Str0", "Uint32", and "Uint64" as a dtype will now raise a TypeError.

(gh-19539)

Expired deprecations for loads, ndfromtxt, and mafromtxt in npyio

numpy.loads was deprecated in v1.15, with the recommendation that users use pickle.loads instead. ndfromtxt and mafromtxt were both deprecated in v1.17 - users should use numpy.genfromtxt instead with the appropriate value for the usemask parameter.

(gh-19615)

... (truncated)

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Bump urllib3 from 1.24.2 to 1.26.5

opened on 2021-06-02 02:39:34 by dependabot[bot]

Bumps urllib3 from 1.24.2 to 1.26.5.

Release notes

Sourced from urllib3's releases.

1.26.5

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Fixed deprecation warnings emitted in Python 3.10.
  • Updated vendored six library to 1.16.0.
  • Improved performance of URL parser when splitting the authority component.

If you or your organization rely on urllib3 consider supporting us via GitHub Sponsors

1.26.4

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Changed behavior of the default SSLContext when connecting to HTTPS proxy during HTTPS requests. The default SSLContext now sets check_hostname=True.

If you or your organization rely on urllib3 consider supporting us via GitHub Sponsors

1.26.3

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Fixed bytes and string comparison issue with headers (Pull #2141)

  • Changed ProxySchemeUnknown error message to be more actionable if the user supplies a proxy URL without a scheme (Pull #2107)

If you or your organization rely on urllib3 consider supporting us via GitHub Sponsors

1.26.2

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Fixed an issue where wrap_socket and CERT_REQUIRED wouldn't be imported properly on Python 2.7.8 and earlier (Pull #2052)

1.26.1

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Fixed an issue where two User-Agent headers would be sent if a User-Agent header key is passed as bytes (Pull #2047)

1.26.0

:warning: IMPORTANT: urllib3 v2.0 will drop support for Python 2: Read more in the v2.0 Roadmap

  • Added support for HTTPS proxies contacting HTTPS servers (Pull #1923, Pull #1806)

  • Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that still wish to use TLS earlier than 1.2 without a deprecation warning should opt-in explicitly by setting ssl_version=ssl.PROTOCOL_TLSv1_1 (Pull #2002) Starting in urllib3 v2.0: Connections that receive a DeprecationWarning will fail

  • Deprecated Retry options Retry.DEFAULT_METHOD_WHITELIST, Retry.DEFAULT_REDIRECT_HEADERS_BLACKLIST and Retry(method_whitelist=...) in favor of Retry.DEFAULT_ALLOWED_METHODS, Retry.DEFAULT_REMOVE_HEADERS_ON_REDIRECT, and Retry(allowed_methods=...) (Pull #2000) Starting in urllib3 v2.0: Deprecated options will be removed

... (truncated)

Changelog

Sourced from urllib3's changelog.

1.26.5 (2021-05-26)

  • Fixed deprecation warnings emitted in Python 3.10.
  • Updated vendored six library to 1.16.0.
  • Improved performance of URL parser when splitting the authority component.

1.26.4 (2021-03-15)

  • Changed behavior of the default SSLContext when connecting to HTTPS proxy during HTTPS requests. The default SSLContext now sets check_hostname=True.

1.26.3 (2021-01-26)

  • Fixed bytes and string comparison issue with headers (Pull #2141)

  • Changed ProxySchemeUnknown error message to be more actionable if the user supplies a proxy URL without a scheme. (Pull #2107)

1.26.2 (2020-11-12)

  • Fixed an issue where wrap_socket and CERT_REQUIRED wouldn't be imported properly on Python 2.7.8 and earlier (Pull #2052)

1.26.1 (2020-11-11)

  • Fixed an issue where two User-Agent headers would be sent if a User-Agent header key is passed as bytes (Pull #2047)

1.26.0 (2020-11-10)

  • NOTE: urllib3 v2.0 will drop support for Python 2. Read more in the v2.0 Roadmap <https://urllib3.readthedocs.io/en/latest/v2-roadmap.html>_.

  • Added support for HTTPS proxies contacting HTTPS servers (Pull #1923, Pull #1806)

  • Deprecated negotiating TLSv1 and TLSv1.1 by default. Users that still wish to use TLS earlier than 1.2 without a deprecation warning

... (truncated)

Commits
  • d161647 Release 1.26.5
  • 2d4a3fe Improve performance of sub-authority splitting in URL
  • 2698537 Update vendored six to 1.16.0
  • 07bed79 Fix deprecation warnings for Python 3.10 ssl module
  • d725a9b Add Python 3.10 to GitHub Actions
  • 339ad34 Use pytest==6.2.4 on Python 3.10+
  • f271c9c Apply latest Black formatting
  • 1884878 [1.26] Properly proxy EOF on the SSLTransport test suite
  • a891304 Release 1.26.4
  • 8d65ea1 Merge pull request from GHSA-5phf-pp7p-vc2r
  • Additional commits viewable in compare view


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Bump flask-cors from 3.0.2 to 3.0.9 in /groups/master

opened on 2021-05-06 20:23:54 by dependabot[bot]

Bumps flask-cors from 3.0.2 to 3.0.9.

Release notes

Sourced from flask-cors's releases.

Release 3.0.9

Security

  • Escape path before evaluating resource rules (thanks @​praetorian-colby-morgan). Prior to this, flask-cors incorrectly evaluated CORS resource matching before path expansion. E.g. "/api/../foo.txt" would incorrectly match resources for "/api/*" whereas the path actually expands simply to "/foo.txt"

Release 3.0.8

Fixes DeprecationWarning: Using or importing the ABCs from 'collections' instead of from 'collections.abc' is deprecated, and in 3.8 it will stop working

Thank you @​juanmaneo and @​jdevera!

Release 3.0.7

Updated logging.warn to logging.warning (#234) Thanks Vaibhav

Release 3.0.6

Manual error in release process. Identical contents at 3.0.5.

Release 3.0.5

Fixes incorrect handling of regexes containg '[', and a few other special characters. https://github-redirect.dependabot.com/corydolphin/flask-cors/issues/212

Release 3.0.4

Handle response.headers being None. (Fixes issue #217) Thanks @​dusktreader for the improvement!

Release 3.0.3

Ensure that an Origin of '*' is never sent if supports_credentials is True (fixes Issue #202)

  • If always_send=True, and '*' is in the allowed origins, and a request is made without an Origin header, no Access-Control-Allow-Origins header will now be returned. This is breaking if you depended on it, but was a bug as it goes against the spec.
Changelog

Sourced from flask-cors's changelog.

3.0.9

Security

  • Escape path before evaluating resource rules (thanks to Colby Morgan). Prior to this, flask-cors incorrectly evaluated CORS resource matching before path expansion. E.g. "/api/../foo.txt" would incorrectly match resources for "/api/*" whereas the path actually expands simply to "/foo.txt"

3.0.8

Fixes : DeprecationWarning: Using or importing the ABCs from 'collections' in Python 3.7. Thank you @​juanmaneo and @​jdevera for the contribution.

3.0.7

Updated logging.warn to logging.warning (#234) Thanks Vaibhav

3.0.6

Manual error in release process. Identical contents at 3.0.5.

3.0.5

Fixes incorrect handling of regexes containg [, and a few other special characters. Fixes Issue #212

3.0.4

Handle response.headers being None. (Fixes issue #217)

3.0.3

Ensure that an Origin of '*' is never sent if supports_credentials is True (fixes Issue #202)

  • If always_send=True, and '*' is in the allowed origins, and a request is made without an Origin header, no Access-Control-Allow-Origins header will now be returned. This is breaking if you depended on it, but was a bug as it goes against the spec.
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aws aws-greengrass iot robotics example 3d-models