Tim Gross 358a46819b fix integer bounds checks (#11815)
* driver: fix integer conversion error

The shared executor incorrectly parsed the user's group into int32 and
then cast to uint32 without bounds checking. This is harmless because
an out-of-bounds gid will throw an error later, but it triggers
security and code quality scans. Parse directly to uint32 so that we
get correct error handling.

* helper: fix integer conversion error

The autopilot flags helper incorrectly parses a uint64 to a uint which
is machine specific size. Although we don't have 32-bit builds, this
sets off security and code quality scaans. Parse to the machine sized
uint.

* driver: restrict bounds of port map

The plugin server doesn't constrain the maximum integer for port
maps. This could result in a user-visible misconfiguration, but it
also triggers security and code quality scans. Restrict the bounds
before casting to int32 and return an error.

* cpuset: restrict upper bounds of cpuset values

Our cpuset configuration expects values in the range of uint16 to
match the expectations set by the kernel, but we don't constrain the
values before downcasting. An underflow could lead to allocations
failing on the client rather than being caught earlier. This also make
security and code quality scanners happy.

* http: fix integer downcast for per_page parameter

The parser for the `per_page` query parameter downcasts to int32
without bounds checking. This could result in underflow and
nonsensical paging, but there's no server-side consequences for
this. Fixing this will silence some security and code quality scanners
though.
2022-01-25 11:16:48 -05:00
2022-01-19 00:23:24 +00:00
2022-01-25 11:16:48 -05:00
2018-03-11 18:40:53 +00:00
2022-01-25 11:16:48 -05:00
2021-12-10 13:50:22 -05:00
2022-01-19 11:51:59 -05:00
2018-02-14 14:47:43 -08:00
2021-10-01 10:14:28 -04:00
2015-06-01 12:21:00 +02:00
2015-06-01 13:46:21 +02:00
2021-11-04 10:16:12 -04:00

Nomad Build Status Discuss

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Nomad is a simple and flexible workload orchestrator to deploy and manage containers (docker, podman), non-containerized applications (executable, Java), and virtual machines (qemu) across on-prem and clouds at scale.

Nomad is supported on Linux, Windows, and macOS. A commercial version of Nomad, Nomad Enterprise, is also available.

Nomad provides several key features:

  • Deploy Containers and Legacy Applications: Nomads flexibility as an orchestrator enables an organization to run containers, legacy, and batch applications together on the same infrastructure. Nomad brings core orchestration benefits to legacy applications without needing to containerize via pluggable task drivers.

  • Simple & Reliable: Nomad runs as a single binary and is entirely self contained - combining resource management and scheduling into a single system. Nomad does not require any external services for storage or coordination. Nomad automatically handles application, node, and driver failures. Nomad is distributed and resilient, using leader election and state replication to provide high availability in the event of failures.

  • Device Plugins & GPU Support: Nomad offers built-in support for GPU workloads such as machine learning (ML) and artificial intelligence (AI). Nomad uses device plugins to automatically detect and utilize resources from hardware devices such as GPU, FPGAs, and TPUs.

  • Federation for Multi-Region, Multi-Cloud: Nomad was designed to support infrastructure at a global scale. Nomad supports federation out-of-the-box and can deploy applications across multiple regions and clouds.

  • Proven Scalability: Nomad is optimistically concurrent, which increases throughput and reduces latency for workloads. Nomad has been proven to scale to clusters of 10K+ nodes in real-world production environments.

  • HashiCorp Ecosystem: Nomad integrates seamlessly with Terraform, Consul, Vault for provisioning, service discovery, and secrets management.

Quick Start

Testing

See Learn: Getting Started for instructions on setting up a local Nomad cluster for non-production use.

Optionally, find Terraform manifests for bringing up a development Nomad cluster on a public cloud in the terraform directory.

Production

See Learn: Nomad Reference Architecture for recommended practices and a reference architecture for production deployments.

Documentation

Full, comprehensive documentation is available on the Nomad website: https://www.nomadproject.io/docs

Guides are available on HashiCorp Learn.

Contributing

See the contributing directory for more developer documentation.

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