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Software · head to head

Docker vs Pulumi

Docker logo

Docker

Software

Accelerate how you build, share, and run applications

From
Free
Rated
-
Full reviewWebsite
Pulumi logo

Pulumi

Software

Modern infrastructure as code using programming languages

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Docker shared kernel creates security vulnerabilities when containers share the same OS kernel that can bypass container isolation; Pulumi the free Individual plan allows one user and one concurrent stack update
  • They diverge on capability: Docker covers Container runtime, Pulumi covers Multi-language support.

Where they differ

Only the attributes on which Docker and Pulumi actually diverge.

Attributes where Docker and Pulumi differ
AttributeDockerPulumi
Pricing modelUnknownfreemium
PlatformsLinux, macOS, WindowsLinux, Windows, Mac, Api
Founded20102017

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 Docker

  • Container runtime
  • Docker Desktop
  • Docker Hub
  • Docker Compose
  • Container images
  • Dockerfile
  • Docker Swarm
  • BuildKit

Only in Pulumi

  • Multi-language support
  • Multi-cloud
  • State management
  • Stacks
  • Automation API
  • Policy as Code
  • GCP
  • Kubernetes

Both cover

  • GitHub
  • AWS
  • Azure
  • Secrets management
  • RBAC

What people use each for

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

Docker

  • Application containerizationnot Pulumi
  • Microservicesnot Pulumi
  • CI/CD pipelinesnot Pulumi
  • Development environmentsnot Pulumi
  • Cloud migrationnot Pulumi

Pulumi

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

Where each one falls short

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

Docker

  • Shared kernel creates security vulnerabilities when containers share the same OS kernel that can bypass container isolation
  • Daemon socket exposure grants full root access to the host if compromised
  • Requires careful secrets management - credentials embedded in images or environment variables are easily harvested by attackers
  • Resource management complexity - misbehaving or compromised containers can consume all resources causing denial of service
  • Orchestration complexity - Docker Swarm is less capable than Kubernetes, requiring external tools for production deployments

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

Pricing, plan by plan

Docker

Free

No published plan breakdown. See the Docker review.

Pulumi

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

Which should you pick?

Choose Docker if

  • You need container runtime.
  • You want to start without paying.
  • You work on Linux, macOS, Windows.
  • You also want docker desktop.
Docker review

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

Questions people ask

Is Docker or Pulumi better?
Neither clearly leads. Docker starts at Free and Pulumi at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Docker or Pulumi?
Docker starts at Free and Pulumi at Free.
Does Docker or Pulumi run on more platforms?
Docker runs on Linux, macOS, Windows. Pulumi runs on Linux, Windows, Mac, Api.
Can I use Docker for free?
Both have a free tier, so you can try either at no cost before committing.
What is Docker best used for?
Docker is most often used for application containerization, microservices, ci/cd pipelines, development environments. Of those, application containerization and microservices are not what Pulumi is typically brought in for.
What can Docker do that Pulumi cannot?
Docker covers Container runtime, Docker Desktop, Docker Hub, Docker Compose. Pulumi covers Multi-language support, Multi-cloud, State management, Stacks. Both handle GitHub, AWS, Azure, Secrets management.

Answered from the vendors’ own pages

Docker: What is Docker pricing?

Docker offers a freemium model with Docker Personal free, Docker Pro at $11/user/month, Docker Team at $16/user/month, and Docker Business at $24/user/month. Each tier includes Docker Desktop, Docker Hub, and Docker Scout with different usage limits.

Source
Docker: Can I use Docker in production?

Yes. Docker is used extensively in production environments. However, for container orchestration at scale, Kubernetes is typically paired with Docker to automate deployment, scaling, and management across clusters.

Source
Docker: What are the main security concerns with Docker?

Key security risks include container breakout vulnerabilities through shared kernel exploits, daemon socket exposure that grants root access if compromised, weak isolation between containers, and credential leakage if secrets are embedded in images.

Source
Docker: Does Docker integrate with CI/CD systems?

Yes. Docker integrates with Jenkins, GitHub, and other CI/CD systems. The typical workflow involves GitHub repositories triggering automated builds in Jenkins, which prepare Dockerfiles and push images to Docker Hub for deployment.

Source
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