Docker / Docker

Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API

User upgraded to Docker 29.5.0 and rootless mode stopped working — docker socket file disappears, can't run any docker commands Includes evidence for Docker troubleshooting demand.

Source-backed Last updated May 17, 2026 1 source Needs local verification

Category: Docker
Error signature: failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory
Quick fix: Compare the failing environment with a known working setup, then change one configuration value at a time.
Updated: May 17, 2026
Verification status: Source-backed
Evidence: 1 public source URL

Before you change production

This page includes public source URLs in the imported troubleshooting record. Compare those references with your version and environment before applying changes.

Reproduce the smallest failing action and save non-secret logs before changing configuration.
Check versions for Docker, related SDKs, package managers, CI runners, and hosting providers.
Change one setting or dependency at a time, then rerun the same failing command or request.
Avoid destructive commands, credential rotation, billing changes, or security relaxations without a rollback plan.

What this error means

failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory is a Docker failure pattern reported for developers trying to user upgraded to docker 29.5.0 and rootless mode stopped working — docker socket file disappears, can't run any docker commands. Based on the imported evidence, treat this as a tool-specific troubleshooting page rather than a generic API error.

Why this happens

Found on moby/moby#52641 (open, 2026-05-17, 0 comments, kind/bug). Very recent regression in Docker Engine Community 29.5.0. Rootless Docker is widely used by developers. High urgency because docker ps / docker compose up both fail. Category: Docker (approved).

Common causes

Found on moby/moby#52641 (open, 2026-05-17, 0 comments, kind/bug). Very recent regression in Docker Engine Community 29.5.0. Rootless Docker is widely used by developers. High urgency because docker ps / docker compose up both fail. Category: Docker (approved).

Quick fixes

Confirm the exact error signature matches failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory.
Check the Docker account, local tool state, and provider configuration involved in the failing workflow.
Compare the failing environment with a known working setup, then change one configuration value at a time.

Platform/tool-specific checks

Verify the command, editor, extension, or API client that produced the error.
Compare local settings with CI, deployment, or editor-level settings when the error appears in only one environment.
Avoid deleting credentials, local model data, or project settings until the failing scope is clear.

Step-by-step troubleshooting

Capture the exact error message and the command, editor action, or request that triggered it.
Check whether the failure is account/auth, quota/rate, model/provider, local runtime, or deployment configuration.
Review the source evidence below and compare it with your environment.
Apply one change at a time and rerun the smallest failing action.
Keep the working fix documented for the team or deployment environment.

How to prevent it

Keep provider/tool configuration documented.
Record non-secret diagnostics such as tool version, provider name, model name, and command path.
Add a lightweight check before CI or production workflows depend on the tool.

Diagnostic flow for this page

Match failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory exactly before applying the quick fix.
Compare the failing environment with Docker versions, account scope, provider settings, and deployment context.
Check the listed common causes in order, starting with the cause that best matches your logs.
Use the evidence status below to decide whether to confirm against public sources or official documentation.
Apply one reversible change, rerun the smallest failing action, and keep rollback notes.

FAQ

What does failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory mean in Docker?

failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory indicates the workflow described by "Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API" failed in a Docker context. Start by confirming the exact signature and the component that emitted it.

What should I check first for failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory?

Check whether this cause matches your environment: Found on moby/moby#52641 (open, 2026-05-17, 0 comments, kind/bug). Very recent regression in Docker Engine Community 29.5.0. Rootless Docker is widely used by developers. High urgency because docker ps / docker compose up both fail. Category: Docker (approved).

Is the failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory guidance source-backed?

The "Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API" page is labeled source-backed. It has 1 public source URL from github.com, so use that evidence status when deciding how much additional verification you need.

When should I avoid the quick fix for failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory?

For "Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API", avoid applying "Compare the failing environment with a known working setup, then change one configuration value at a time." when the error text differs, the affected version or provider is different, or the change would touch credentials, billing, DNS, production deploy settings, or irreversible data.

What should I collect before debugging failed to connect to the docker API at unix:///run/user/1000/docker.sock; check if the path is correct and if the daemon is running: dial unix /run/user/1000/docker.sock: connect: no such file or directory?

For "Docker 29.5.0 Rootless Daemon Socket Disappears — Cannot Connect to Docker API", collect the failing Docker command or request, non-secret configuration, versions, timestamps, request IDs when available, and the smallest reproduction that still triggers the signature.