Docker review

Docker is a platform for building, shipping, and running applications in containers. Docker Desktop provides a local development loop; the homepage also positions Docker as infrastructure for running AI agents locally or in cloud sandboxes, using existing images, registries, and CI. Its agent features include microVM isolation, network and filesystem controls, sandbox and MCP policies, identity-bound audit logs, and a governance console. Docker also offers hardened images and MCP servers, described as minimal, signed, and continuously patched. The homepage says Docker is OCI-compliant and platform-independent.

The product is broader than the paid Desktop plans. Docker Personal is free, while Pro starts at $9 per user per month with annual billing ($11 monthly). Separate hardened-image plans range from a free community catalog to Select, which starts at $5,000 per repository. The pricing page does not publish a price for Enterprise.

Docker’s core value is a repeatable environment: a project can describe its dependencies so developers and deployment systems use the same setup. In one Reddit thread, developers described this as a way to reduce “works on my machine” problems and make projects easier to reproduce. That is a practical reason to keep Docker in a development stack, even if you do not need its newer AI features.

For agent workflows, Docker’s pitch is to use the same isolation approach on a laptop and in cloud sandboxes. The homepage lists microVMs, locked-down networking, filesystem controls, governance policies, and audit logs; it also says teams can use existing images, registries, and CI. That may make Docker a less disruptive option for teams already using its container tooling, though the published materials do not establish how the controls compare with alternatives.

There is also a free entry point for hardened images: DHI Community includes the open-source catalog under Apache 2.0, verifiable SBOMs, SLSA Build L3 provenance, and unsuppressed CVE visibility, according to the pricing details. Docker’s paid plans bundle other limits, too: Pro includes two Docker Scout-enabled repositories and 100 Testcontainers Cloud runtime minutes monthly; Team includes 500 minutes.

Read the plan caps before treating Docker as a simple per-seat purchase. Personal allows one user, one Scout-enabled repository, one private Docker Hub repository, and 100 Hub pulls per hour. Pro is $11 per user monthly or $9 annually; Team is $16 monthly or $15 annually, capped at 100 users. Business removes the user cap but costs $24 per user per month either way. Team and Business include 10 and 100 organization access tokens, respectively.

Testcontainers Cloud runtime minutes expire at the end of the subscription period. Extra reserved minutes cost $3 per 100; on-demand minutes cost $4 per 100. DHI Select starts at $5,000 per repository, while DHI Enterprise and support add-ons have no published price. Those costs can make the total harder to forecast.

Docker may also be more machinery than a small deployment needs. In a Reddit discussion, a self-hosting user warned that containerizing every service can make a setup clunky. Linux users discussing Podman cite rootless operation and systemd integration as reasons to switch; other commenters say Docker’s benefits still suit them. The best fit depends on whether Docker’s familiar workflow and controls justify the seat and add-on costs.

Docker Personal is free, but its included limits are modest: one user, one Docker Scout-enabled repo, 100 Docker Hub pulls per hour and one private repo. Pro costs $11 per user monthly or $9 with annual billing; it removes the pull-rate limit and includes two Scout-enabled repos. Team is $16 monthly or $15 annually per user, with a 100-user cap. Business is $24 per user either way, with no user cap. That’s a noticeable step up from Pro, especially for larger teams.

Docker also lists DHI Community at no charge. DHI Select starts at $5,000 per repo; Enterprise pricing is not published. Testcontainers Cloud adds $3 per 100 extra runtime minutes or $4 per 100 on-demand minutes. Subscription minutes expire at period end. Extended Lifecycle Support and Premium Support/TAM prices are not published. Annual prices are per user per month, so check the billing term before comparing totals.

Docker says its platform is OCI-compliant and works with existing images, registries and CI. That points to a less disruptive move for teams already using container images than for teams whose workflows depend on Docker Desktop or its specific development loop. The homepage also says agents can run locally or in cloud sandboxes with the same isolation; replacing that setup may mean evaluating sandbox, policy and governance alternatives separately.

The published material does not describe a data-export process or quantify migration effort, so check what you need to take with you—such as images, configuration and audit records—before switching. Docker’s pricing page gives plan limits, but not a migration path. We also weren’t given Reddit posts or comments to substantiate why users leave, so we can’t responsibly name a common Reddit-reported trigger. Compare the Docker features you rely on with the replacement’s published limits and export options, rather than assuming OCI compatibility covers every part of the workflow.