Addition of "--shm-size" to which size of /dev/shm is changed.

- Optional "--shm-size=" was added to the sub-command(run, create,and build).
- The size of /dev/shm in the container can be changed
  when container is made.
- Being able to specify is a numerical value that applies number,
  b, k, m, and g.
- The default value is 64MB, when this option is not set.
- It deals with both native and lxc drivers.

Signed-off-by: NIWA Hideyuki <niwa.hiedyuki@jp.fujitsu.com>
Upstream-commit: 5aeaf2a0c4236711e0981515d8627b30e22a1637
Component: engine

components/engine/builder/dockerfile/builder.go

@@ -60,6 +60,7 @@ type Config struct {
 
 	Memory       int64
 	MemorySwap   int64
+	ShmSize      int64
 	CPUShares    int64
 	CPUPeriod    int64
 	CPUQuota     int64

components/engine/builder/dockerfile/internals.go

@@ -508,6 +508,7 @@ func (b *Builder) create() (*daemon.Container, error) {
 		CgroupParent: b.CgroupParent,
 		Memory:       b.Memory,
 		MemorySwap:   b.MemorySwap,
+		ShmSize:      b.ShmSize,
 		Ulimits:      b.Ulimits,
 		Isolation:    b.Isolation,
 	}