Understand the Swarm vs. Engine response codes

Docker Engine provides a REST API for making calls to the Engine daemon. Docker Swarm allows a caller to make the same calls to a cluster of Engine daemons. While the API calls are the same, the API response status codes do differ. This document explains the differences.

Four methods are included, and they are GET, POST, PUT and DELETE.

The comparison is based on api v1.22, and all Docker Status Codes in api v1.22 are referenced from docker-remote-api-v1.22.

GET

• Route: /_ping
• Handler: ping

Swarm Status Code	Docker Status Code
200	200
	500

• Route: /events
  
• Handler: getEvents

Swarm Status Code	Docker Status Code
200	200
400
	500

• Route: /info
  
• Handler: getInfo

Swarm Status Code	Docker Status Code
200	200
	500

• Route: /version
  
• Handler: getVersion

Swarm Status Code	Docker Status Code
200	200
	500

• Route: /images/json
  
• Handler: getImagesJSON

Swarm Status Code	Docker Status Code
200	200
500	500

• Route: /images/viz
  
• Handler: notImplementedHandler

Swarm Status Code	Docker Status Code
501	no this api

• Route: /images/search
  
• Handler: proxyRandom

Swarm Status Code	Docker Status Code
200	200
500	500

• Route: /images/get
  
• Handler: getImages

Swarm Status Code	Docker Status Code
200	200
404
500	500

• Route: /images/{name:.*}/get
  
• Handler: proxyImageGet

Swarm Status Code	Docker Status Code
200	200
404
500	500

• Route: /images/{name:.*}/history
  
• Handler: proxyImage

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /images/{name:.*}/json
  
• Handler: proxyImage

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/ps
  
• Handler: getContainersJSON

Swarm Status Code	Docker Status Code
200	no this api
404	no this api
500	no this api

• Route: /containers/json
  
• Handler: getContainersJSON

Swarm Status Code	Docker Status Code
200	200
	400
404
500	500

• Route: /containers/{name:.*}/archive
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
400	400
404	404
500	500

• Route: /containers/{name:.*}/export
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/changes
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/json
  
• Handler: getContainerJSON

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/top
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/logs
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
101	101
200	200
404	404
500	500

• Route: /containers/{name:.*}/stats
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/attach/ws
• Handler: proxyHijack

Swarm Status Code	Docker Status Code
200	200
400	400
404	404
500	500

• Route: /exec/{execid:.*}/json
  
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /networks
  
• Handler: getNetworks

Swarm Status Code	Docker Status Code
200	200
400
500	500

• Route: /networks/{networkid:.*}
  
• Handler: getNetwork

Swarm Status Code	Docker Status Code
200	200
404	404

• Route: /volumes
  
• Handler: getVolumes

Swarm Status Code	Docker Status Code
200	200
	500

• Route: /volumes/{volumename:.*}
  
• Handler: getVolume

Swarm Status Code	Docker Status Code
200	200
404	404
	500

POST

• Route: /auth
• Handler: proxyRandom

Swarm Status Code	Docker Status Code
200	200
204	204
500	500

• Route: /commit
• Handler: postCommit

Swarm Status Code	Docker Status Code
201	201
404	404
500	500

• Route: /build
• Handler: postBuild

Swarm Status Code	Docker Status Code
200	200
500	500

• Route: /images/create
• Handler: postImagesCreate

Swarm Status Code	Docker Status Code
200	200
500	500

• Route: /images/load
• Handler: postImagesLoad

Swarm Status Code	Docker Status Code
	200
201
	500

• Route: /images/{name:.*}/push
• Handler: proxyImagePush

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /images/{name:.*}/tag
• Handler: postTagImage

Swarm Status Code	Docker Status Code
200
	201
	400
404	404
	409
500	500

• Route: /containers/create
• Handler: postContainersCreate

Swarm Status Code	Docker Status Code
201	201
400
	404
	406
409
500	500

• Route: /containers/{name:.*}/kill
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
404	404
500	500

• Route: /containers/{name:.*}/pause
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
404	404
500	500

• Route: /containers/{name:.*}/unpause
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
404	404
500	500

• Route: /containers/{name:.*}/rename
• Handler: postRenameContainer

Swarm Status Code	Docker Status Code
200
	204
404	404
409	409
500	500

• Route: /containers/{name:.*}/restart
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
404	404
500	500

• Route: /containers/{name:.*}/start
• Handler: postContainersStart

Swarm Status Code	Docker Status Code
204	204
	304
404	404
500	500

• Route: /containers/{name:.*}/stop
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
304	304
404	404
500	500

• Route: /containers/{name:.*}/update
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
200	200
400	400
404	404
500	500

• Route: /containers/{name:.*}/wait
• Handler: proxyContainerAndForceRefresh

Swarm Status Code	Docker Status Code
204	204
404	404
500	500

• Route: /containers/{name:.*}/resize
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/attach
• Handler: proxyHijack

Swarm Status Code	Docker Status Code
101	101
200	200
400	400
404	404
500	500

• Route: /containers/{name:.*}/copy
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /containers/{name:.*}/exec
• Handler: postContainersExec

Swarm Status Code	Docker Status Code
201	201
404	404
	409
500	500

• Route: /exec/{execid:.*}/start
• Handler: postExecStart

Swarm Status Code	Docker Status Code
200	200
404	404
409	409
500

• Route: /exec/{execid:.*}/resize
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
201	201
404	404
500

• Route: /networks/create
• Handler: postNetworksCreate

Swarm Status Code	Docker Status Code
200
	201
400
	404
500	500

• Route: /networks/{networkid:.*}/connect
• Handler: proxyNetworkConnect

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /networks/{networkid:.*}/disconnect
• Handler: proxyNetworkDisconnect

Swarm Status Code	Docker Status Code
200	200
404	404
500	500

• Route: /volumes/create
• Handler: postVolumesCreate

Swarm Status Code	Docker Status Code
200
	201
400
500	500

PUT

• Route: /containers/{name:.*}/archive"
• Handler: proxyContainer

Swarm Status Code	Docker Status Code
200	200
400	400
403	403
404	404
500	500

DELETE

• Route: /containers/{name:.*}
• Handler: deleteContainers

Swarm Status Code	Docker Status Code
200
	204
	400
404	404
500	500

• Route: /images/{name:.*}
• Handler: deleteImages

Swarm Status Code	Docker Status Code
200	200
404	404
	409
500	500

• Route: /networks/{networkid:.*}
• Handler: deleteNetworks

Swarm Status Code	Docker Status Code
	200
204
404	404
500	500

• Route: /volumes/{name:.*}"
• Handler: deleteVolumes

Swarm Status Code	Docker Status Code
204	204
404	404
	409
500	500