Nomad
Nomad Enterprise
Nomad Enterprise adds collaboration, operational, and governance capabilities to Nomad. Nomad Enterprise is available as a base Platform package with an optional Governance & Policy add-on module.
Please navigate the sub-sections for more information about each package and its features in detail.
Note: A Nomad Enterprise cluster cannot be downgraded to the open source version of Nomad. Servers running the open source version of Nomad will panic if they are joined to a Nomad Enterprise cluster, due to raft entries relating to Enterprise features not being parseable by open source Nomad.
Nomad Enterprise Platform
Nomad Enterprise Platform enables operators to easily upgrade Nomad as well as enhances performance and availability through Advanced Autopilot features such as Automated Upgrades, Enhanced Read Scalability, and Redundancy Zones.
Long Term Support (LTS) Releases
Nomad Enterprise initiated the Long-Term Support (LTS) release program with Nomad 1.8. Going forward, the first major release of each calendar year will be an LTS release.
LTS releases have the following benefits for Nomad operators:
- Extended maintenance: Two years of critical fixes provided through minor releases
- Efficient upgrades: Support for direct upgrades from one LTS release to the next, reducing major-version upgrade risk and improving operational efficiency.
LTS releases reduce operational overhead and risk by letting organizations receive critical fixes in minor releases without having to upgrade their major version more than once a year. Once you’ve upgraded to Nomad Enterprise 1.8, you will be running on a maintained LTS release that will allow you to easily upgrade to the next LTS major release when it's available. For more information, refer to HashiCorp’s multi-product LTS statement.
Automated Upgrades
Automated Upgrades allows operators to deploy a complete cluster of new servers and then simply wait for the upgrade to complete. As the new servers join the cluster, server logic checks the version of each Nomad server node. If the version is higher than the version on the current set of voters, it will avoid promoting the new servers to voters until the number of new servers matches the number of existing servers at the previous version. Once the numbers match, Nomad will begin to promote new servers and demote old ones.
See the Autopilot - Upgrade Migrations documentation for a thorough overview.
Automated Backups
Automated Backups allows operators to run the snapshot agent as a long-running daemon process or in a one-shot mode from a batch job. The agent takes snapshots of the state of the Nomad servers and saves them locally, or pushes them to an optional remote storage service, such as Amazon S3.
This capability provides an enterprise solution for backup and restoring the state of Nomad servers within an environment in an automated manner. These snapshots are atomic and point-in-time.
See the Operator Snapshot agent documentation for a thorough overview.
Enhanced Read Scalability
This feature enables an operator to introduce non-voting server nodes to a Nomad cluster. Non-voting servers will receive the replication stream but will not take part in quorum (required by the leader before log entries can be committed). Adding explicit non-voters will scale reads and scheduling without impacting write latency.
See the Autopilot - Read Scalability documentation for a thorough overview.
Redundancy Zones
Redundancy Zones enables an operator to deploy a non-voting server as a hot standby server on a per availability zone basis. For example, in an environment with three availability zones an operator can run one voter and one non-voter in each availability zone, for a total of six servers. If an availability zone is completely lost, only one voter will be lost, so the cluster remains available. If a voter is lost in an availability zone, Nomad will promote the non-voter to a voter automatically, putting the hot standby server into service quickly.
See the Autopilot - Redundancy Zones documentation for a thorough overview.
Multiple Vault Namespaces
Multi-Vault Namespaces enables an operator to configure a single Nomad cluster to support multiple Vault Namespaces for topology simplicity and fleet consolidation when running Nomad and Vault together. Nomad will automatically retrieve a Vault token based on a job's defined Vault Namespace and make it available for the specified Nomad task at hand.
See the Vault Integration documentation for more information.
Multiple Vault and Consul Clusters
Nomad Enteprise allows sepcifying multiple integrations for Consul and Vault in the vault and consul portions of the Nomad agent configuration. After the agents are configured, Nomad jobspec writers can pick which Consul or Vault cluster to use in their job. Nomad administrators may also set default clusters for each in Nomad namespace configuration, as well as deny access to certain clusters by namespace.
Governance & Policy
Governance & Policy features are part of an add-on module that enables an organization to securely operate Nomad at scale across multiple teams through features such as Audit Logging, Resource Quotas, and Sentinel Policies.
Audit Logging
Secure clusters with enhanced risk management and operational traceability to fulfill compliance requirements. This Enterprise feature provides administrators with a complete set of records for all user-issued actions in Nomad.
With Audit Logging, enterprises can now proactively identify access anomalies, ensure enforcement of their security policies, and diagnose cluster behavior by viewing preceding user operations. Designed as an HTTP API based audit logging system, each audit event is captured with relevant request and response information in a JSON format that is easily digestible and familiar to operators.
See the Audit Logging Documentation for a thorough overview.
Resource Quotas
Resource Quotas enable an operator to limit resource consumption across teams or projects to reduce waste and align budgets. In Nomad Enterprise, operators can define quota specifications and apply them to namespaces. When a quota is attached to a namespace, the jobs within the namespace may not consume more resources than the quota specification allows.
This allows operators to partition a shared cluster and ensure that no single actor can consume the whole resources of the cluster.
See the Resource Quotas Guide for a thorough overview.
Sentinel Policies
In Nomad Enterprise, operators can create Sentinel policies for fine-grained policy enforcement. Sentinel policies build on top of the ACL system and allow operators to define policies such as disallowing jobs to be submitted to production on Fridays or only allowing users to run jobs that use pre-authorized Docker images. Sentinel policies are defined as code, giving operators considerable flexibility to meet compliance requirements.
See the Sentinel Policies Guide for a walk-through on deploying Sentinel policies and the Nomad Sentinel policy reference for more information on what objects are available for policies.
Multi-Cluster & Efficiency
Multi-Cluster & Efficiency features are part of an add-on module that enables an organization to operate Nomad at scale across multiple clusters through features such as Multiregion Deployments.
Multiregion Deployments
Multiregion Deployments enable an operator to deploy a single job to multiple federated regions. This includes the ability to control the order of rollouts and how each region will behave in the event of a deployment failure.
Dynamic Application Sizing
Dynamic Application Sizing enables organizations to optimize the resource consumption of applications using sizing recommendations from Nomad. This feature builds on Nomad autoscaling capabilities to remove the trial-and-error routine of manually setting resource requirements. DAS comprises support for vertical scaling policies, a new API and UI for reviewing recommended job changes, and a collection of Nomad Autoscaler plugins informed by best-practice statistical measures.
Try Nomad Enterprise
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