Komodo vs Portainer CE

Komodo and Portainer both give you a browser UI for the Docker hosts you run: containers, logs, shells and Compose stacks, without SSH-ing into each box. They come at it from different ends. Portainer CE is a container management UI for Docker, Swarm, Podman and Kubernetes, with a paid Business Edition on top. Komodo is a GPL-3.0 tool "to build and deploy software across many servers", with Git-driven stacks, image builds, scheduled procedures and config-as-code, and no paid tier. The deciding questions are how many servers you have, and whether you want a UI to look at containers or a system that deploys them for you.

Architecture

Komodo has two parts. Core is the web server that hosts the API and the UI, and it stores its state in MongoDB or FerretDB (on PostgreSQL). Every server it manages runs Periphery, which its docs call a "small, stateless agent". Core sends it commands over a bi-directional websocket. Upstream recommends running Periphery as a systemd service rather than a container: it installs with a one-line script and an onboarding key you create in Core. The official Compose file runs Core, the database and a local Periphery together. The README says: "There is no limit to the number of servers you can connect, and there will never be."

Portainer is one server container with a data volume. It manages the local Docker host through the mounted /var/run/docker.sock. Other hosts are added as environments: a Portainer Agent reachable on port 9001, or an Edge Agent that dials back to the server's tunnel port 8000. The docs say port 8000 is "only required if you plan to use the Edge compute features". Environments can be Docker Standalone, Swarm, Podman or Kubernetes.

So Kubernetes is where the two differ outright. Komodo's docs cover Docker, Compose and Swarm, and say Podman works "via the podman → docker alias". Portainer manages Kubernetes clusters as well.

Compose stacks and Git

Both deploy Compose stacks from a Git repository and redeploy when it changes.

Komodo's Stack resource takes Compose files defined in the UI, on the host, or in a Git repo "with auto-deploy on push". Two update modes, Poll for Updates and Auto Update, check registries for newer image digests. New installs include a Global Auto Update procedure scheduled daily at 03:00. Auto-update needs a rolling tag such as :latest; for pinned tags in Git the docs suggest Renovate.

Portainer's stack docs list four ways to create a stack: web editor, upload, Git repository and custom template. Git stacks can update by polling the repository at an interval or through a webhook, with an option to force a redeploy that overwrites local changes. The docs mark relative-path volumes as "only available in Portainer Business Edition". The README lists GitOps among what Business Edition adds, so check the specific Git feature you rely on against the edition you run.

What Komodo adds: builds, procedures, syncs

This is where Komodo goes past a container UI.

• Builds make images from a Dockerfile in the UI or from a cloned Git repo. The docs mention AWS EC2 spot instances for build capacity.
• Procedures and Actions chain steps into multi-step workflows, and schedules run them regularly.
• Resource Syncs declare servers, stacks, builds and user groups in TOML files, in the UI or in a Git repo. Core diffs them against what exists and shows the pending changes. It applies them on confirmation or on a Git webhook. In "Managed Mode", changes made in the UI are committed back to the file.
• Variables and secrets are shared and interpolated across resources.
• Servers report CPU, memory and disk, with alerts, and every change goes into an audit trail with "who made it and when".

Terminals and access control

Both give you logs and a shell in the browser. Komodo also opens a terminal on the server itself (default bash), keeps sessions persistent and allows several named sessions per resource.

Komodo's permissions are part of the free product. Resources carry four levels (None, Read, Execute, Write) for users or user groups. Separate Logs, Inspect and Terminal permissions gate the risky parts. The docs warn that Inspect on a server "will expose all container environments" on it. Sign-in supports username/password, GitHub and Google OAuth, and generic OIDC.

Portainer's role docs say that "Portainer Business Edition comes with Role-Based Access Control (RBAC) features". The README lists RBAC, edge management, audit and SSO among what Business Edition adds. It also offers "Take3" (three free Business Edition nodes).

Support and intended use

This is the part of Portainer's README worth reading before you install it. It says Portainer CE is "designed for homelabs, learning environments, personal projects, and other non-production deployments" and is "not intended for, or supported in, business, production, or any other environment where uptime, security posture, or data integrity matter". CE "has no official support channel", and Business Edition gets more frequent releases.

Komodo's README has a plain GPL disclaimer ("there are no warranties. Use at your own risk") and no paid edition. The practical difference is that Portainer draws the line between CE and BE at production use and team features. Komodo draws no line.

Footprint and install

Portainer CE is one docker run with the socket and a portainer_data volume. The UI is on port 9443 with a self-signed certificate. New instances require a setup token from the container logs (setup_token=) to finish first-time setup. Portainer publishes no RAM figure. Our 256 MB is an estimate, and we have not install-tested Portainer on this site.

Komodo is a Compose project: Core, a database and Periphery. Our install uses the FerretDB variant because MongoDB refuses to start on Linux 6.19 and newer, which includes Ubuntu 26.04. Komodo's setup docs also note that some systems "do not support running the latest MongoDB versions". You replace the example secrets in compose.env before the first start. Measured idle on our GCP e2-standard-2 test box (2026-09-29), Komodo used ~110 MB of RAM. Komodo publishes no minimum; our 1 GB is an estimate that leaves room for the database. Its install is tested on this site.

We rate Portainer 1 out of 5 to deploy and Komodo 2 out of 5, for the extra database, the secrets file and one Periphery per extra server.

Licences: Portainer is Zlib, Komodo is GPL-3.0.

Which to choose

Choose Portainer CE if you want a UI over one or a few Docker hosts, a Swarm, a Podman host or a Kubernetes cluster, installed with one command. Read its README's intended-use section first. For a business, a production system, or anything that needs RBAC and SSO, the vendor points you to Business Edition.

Choose Komodo if you run several servers and want one place to build images, deploy Compose stacks from Git, schedule procedures, and keep all of it as TOML in a repository, with role-based permissions at no cost. Plan for Periphery on every host and a database next to Core.

Choosing between Komodo and Portainer

Starting from Portainer, the usual reasons to move are the edition line and server count. You have outgrown one host, or you need permissions and audit without a Business Edition licence. Starting from Komodo, the reason to move is usually Kubernetes or a simpler tool: Portainer covers clusters, and it is one container. For self-hosted platforms that go further and deploy apps with domains and TLS, see Coolify vs Dokploy.