How do I check Docker versions and find the containers on the intended server?
The Docker CLI can target a local engine or a remote context. Confirm the selected context before interpreting container output or issuing any operation. A stopped container remains part of the installation even though the default running-container listing does not show it.
Before you start
- Authorised access to the intended Docker daemon.
Instructions
1. Confirm the context and engine
Check that you are connected to the expected server. Docker client and server versions can differ, and a reachable client executable does not prove that the daemon is available.
docker context show
docker versionShows the selected context name and client/engine version information without changing context.
2. List running and stopped containers
Use the names, image references and status to identify the application. Avoid assuming that a familiar container name belongs to the same environment across different contexts.
docker ps --all --format "table {{.Names}} {{.Image}} {{.Status}} {{.Ports}}"Lists containers with a focused set of identifying fields.
3. Identify the deployment owner
Check whether the application is managed by Compose, an orchestrator or another service. Future changes should use that owner’s configuration so a direct container edit does not get replaced on the next deployment.
Check the result
- The selected engine is the intended one and the relevant container’s image and state are identified.
Troubleshooting
- Cannot connect to the Docker daemon
- Check daemon availability and authorised socket/context access. Do not make the Docker socket world-writable to bypass an access error.
- Only the client version is displayed
- The CLI is installed but the selected daemon connection is failing; this is not evidence that no containers exist.
Official references
Use the documentation for your installed version when a flag, service name or platform feature differs.