🐳

Docker Exit Codes

Docker 2720 codes

Container exit codes and daemon errors

Showing 20 of 20 errors

Code	Message	Severity	Tier
OOMKilled	Container killed due to out of memory	ERROR	Common	→
Exit Code 125	Docker daemon execution error	ERROR	Notable	→
Exit Code 126	Contained command cannot be invoked	ERROR	Critical	→
Exit Code 127	Contained command not found	ERROR	Critical	→
Exit Code 137	Container killed by OOM killer (SIGKILL)	ERROR	Common	→
Exit Code 139	Segmentation Fault (SIGSEGV)	CRITICAL	Common	→
Exit Code 143	Graceful shutdown via SIGTERM	INFO		→
CrashLoopBackOff	Container is starting and crashing in a loop	ERROR	Notable	→
bind: address already in use	Port is already allocated on the host	ERROR	Critical	→
no space left on device	Docker host or container is out of disk space	CRITICAL	Common	→
permission denied on volume mount	SELinux, AppArmor, or filesystem permissions are blocking volume access	ERROR	Notable	→
image not found / pull access denied	Image does not exist locally or in a remote repository	ERROR	Critical	→
network not found	The specified Docker network does not exist	ERROR	Critical	→
container name is already in use	A container with the specified name already exists	ERROR		→
cannot connect to Docker daemon	Docker CLI cannot reach the Docker service	CRITICAL	Notable	→
context deadline exceeded	API call to Docker daemon timed out	WARNING	Notable	→
layer already exists	A pushed image layer already exists in the remote registry	INFO		→
invalid reference format	Image name contains invalid characters or format	ERROR		→
dockerfile syntax error	Instruction in Dockerfile is unknown or malformed	ERROR		→
Health check failing	Container is running but reported as unhealthy	WARNING	Notable	→