Docker / Compose, Swarm & Production Security
Investigate a container operation blocked by seccomp or security options
A process can fail a syscall because of an intentional security profile rather than ordinary file permissions. Inspect configured options and host evidence.
Environment and inputs: Docker Engine · Compose v2 and Buildx where specified; Linux containers unless noted. Verify daemon context, installed feature support and authorized host or Swarm manager access first.
Start with this check
Confirm the environment and replace sample objects, namespaces, images, paths and hosts with approved targets. Share only relevant, sanitized output. Follow the workload owner’s process for changes.
docker container inspect --format '{{json .HostConfig.SecurityOpt}} {{.HostConfig.Privileged}}' appRead the result
The configuration identifies requested security options. Defaults and runtime policy still need the platform's documented interpretation; an empty list is not proof of no filtering.
Resolve and verify
Correlate the precise application error with authorized host audit evidence and supported syscall requirements. Make a narrow reviewed profile change only when justified.
Before changing production
Do not set seccomp unconfined or privileged mode globally to hide an unexplained application failure.