Support mem_reservation service property

Signed-off-by: Lachlan Donald <[email protected]>

Author: lox

config/schema.go

@@ -298,6 +298,7 @@ var servicesSchemaDataV2 = `{
 
         "mac_address": {"type": "string"},
         "mem_limit": {"type": ["number", "string"]},
+        "mem_reservation": {"type": ["number", "string"]},
         "memswap_limit": {"type": ["number", "string"]},
         "mem_swappiness": {"type": "integer"},
         "network_mode": {"type": "string"},

config/types.go

@@ -117,6 +117,7 @@ type ServiceConfig struct {
 	Logging        Log                  `yaml:"logging,omitempty"`
 	MacAddress     string               `yaml:"mac_address,omitempty"`
 	MemLimit       yaml.MemStringorInt  `yaml:"mem_limit,omitempty"`
+	MemReservation yaml.MemStringorInt  `yaml:"mem_reservation,omitempty"`
 	MemSwapLimit   yaml.MemStringorInt  `yaml:"memswap_limit,omitempty"`
 	MemSwappiness  yaml.MemStringorInt  `yaml:"mem_swappiness,omitempty"`
 	NetworkMode    string               `yaml:"network_mode,omitempty"`