introduce workingdir option for docker exec

Signed-off-by: Nicolas De Loof <nicolas.deloof@gmail.com>
Upstream-commit: 19f2749d3906707717aeec9da27c499bcdc07da8
Component: engine

components/engine/api/swagger.yaml

@@ -7269,6 +7269,9 @@ paths:
               User:
                 type: "string"
                 description: "The user, and optionally, group to run the exec process inside the container. Format is one of: `user`, `user:group`, `uid`, or `uid:gid`."
+              WorkingDir:
+                type: "string"
+                description: "The working directory for the exec process inside the container."
             example:
               AttachStdin: false
               AttachStdout: true

components/engine/api/types/configs.go

@@ -50,6 +50,7 @@ type ExecConfig struct {
 	Detach       bool     // Execute in detach mode
 	DetachKeys   string   // Escape keys for detach
 	Env          []string // Environment variables
+	WorkingDir   string   // Working directory
 	Cmd          []string // Execution commands and args
 }