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Pulumi vs Vault

Pulumi logo

Pulumi

Software

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite
Vault logo

Vault

Software

Manage Secrets and Protect Sensitive Data

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Pulumi the free Individual plan allows one user and one concurrent stack update; Vault vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
  • They diverge on capability: Pulumi covers Multi-language support, Vault covers Encryption.

Where they differ

Only the attributes on which Pulumi and Vault actually diverge.

Attributes where Pulumi and Vault differ
AttributePulumiVault
Pricing modelfreemiumopen-source
PlatformsLinux, Windows, Mac, ApiLinux, Windows, Mac, Cloud
Founded20172015

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Unknown).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Pulumi

  • Multi-language support
  • Multi-cloud
  • State management
  • Stacks
  • Automation API
  • Policy as Code
  • AWS
  • Azure

Only in Vault

  • Encryption
  • Authentication
  • Authorization
  • API access
  • High availability
  • Replication
  • Terraform
  • Ansible

Both cover

  • Secrets management
  • RBAC
  • Kubernetes
  • RBAC
  • Audit logging
  • On-premise deployment
  • Cloud deployment

What people use each for

The jobs each tool is most often brought in to do.

Pulumi

  • Defining cloud infrastructure as code in TypeScript, Python, Go, C# or Java rather than a DSLnot Vault
  • Managing Pulumi state and secrets in a hosted backend instead of self-managed storagenot Vault
  • Policy, drift detection and deployment workflows for platform engineering teamsnot Vault

Vault

  • Centrally storing and rotating secrets, API keys and database credentialsnot Pulumi
  • Issuing short-lived dynamic credentials to applications instead of static passwordsnot Pulumi
  • Encryption as a service and PKI certificate issuancenot Pulumi

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Pulumi

  • The free Individual plan allows one user and one concurrent stack update
  • The Team plan is $40 per month base including 40 credits, and caps the organisation at 10 users
  • SAML/SSO, RBAC, audit logs and drift detection require the Enterprise plan at $400 per month base
  • The per-resource rate rises from $0.1825 per resource per month on Team to $0.365 on Enterprise, so upgrading raises the unit price as well as the base fee
  • Managed secrets are billed separately at $0.50 per secret per month on Team and $0.75 on Enterprise
  • Self-hosting, SCIM user sync, audit log export and 24x7 support are only in Business Critical, which is custom priced with no published rate
  • Team includes up to 500 resources and Enterprise up to 2,000, with everything beyond billed on demand as credits

Vault

  • Vault 1.15.0 and later is licensed under the Business Source License 1.1, not an OSI open source licence, with IBM Corporation as licensor
  • The Additional Use Grant forbids offering Vault to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vault
  • Each version only converts to MPL 2.0 four years after that version is published, and the Change Date is tracked per version
  • Replication, HSM support, namespaces, performance standby nodes, FIPS builds, control group authorisation, multi-factor authentication, secrets sync and lease count quotas all require a Vault Enterprise licence
  • A Vault Enterprise licence must be applied to the cluster before any Enterprise feature can be used

Pricing, plan by plan

Pulumi

Free
  • Pulumi CommunityFree
    • Open source
    • Community support
    • Self-hosted
  • Pulumi Cloud$10/month
    • Hosted backend
    • Team collaboration
    • RBAC

Vault

Free
  • Open SourceFree
    • Secrets management
    • Encryption as a service
    • Identity management
  • EnterpriseFree
    • Advanced features
    • Premium support
    • Dedicated updates

Which should you pick?

Choose Pulumi if

  • You need multi-language support.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want multi-cloud.
Pulumi review

Choose Vault if

  • You need encryption.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Cloud.
  • You also want authentication.
Vault review

Questions people ask

Is Pulumi or Vault better?
Neither clearly leads. Pulumi starts at Free and Vault at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Pulumi or Vault?
Pulumi starts at Free and Vault at Free.
Does Pulumi or Vault run on more platforms?
Pulumi runs on Linux, Windows, Mac, Api. Vault runs on Linux, Windows, Mac, Cloud.
Can I use Pulumi for free?
Both have a free tier, so you can try either at no cost before committing.
What is Pulumi best used for?
Pulumi is most often used for defining cloud infrastructure as code in typescript, python, go, c# or java rather than a dsl, managing pulumi state and secrets in a hosted backend instead of self-managed storage, policy, drift detection and deployment workflows for platform engineering teams. Of those, defining cloud infrastructure as code in typescript, python, go, c# or java rather than a dsl and managing pulumi state and secrets in a hosted backend instead of self-managed storage are not what Vault is typically brought in for.
What can Pulumi do that Vault cannot?
Pulumi covers Multi-language support, Multi-cloud, State management, Stacks. Vault covers Encryption, Authentication, Authorization, API access. Both handle Secrets management, RBAC, Kubernetes, RBAC.
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