Merge pull request #808 from ethan-haynes/698-tmpfs-mode-compose

added support for tmpfs-mode in compose file

cli/compose/convert/volume.go

@@ -22,43 +22,37 @@ func Volumes(serviceVolumes []composetypes.ServiceVolumeConfig, stackVolumes vol
 	return mounts, nil
 }
 
-func convertVolumeToMount(
+func createMountFromVolume(volume composetypes.ServiceVolumeConfig) mount.Mount {
+	return mount.Mount{
+		Type:        mount.Type(volume.Type),
+		Target:      volume.Target,
+		ReadOnly:    volume.ReadOnly,
+		Source:      volume.Source,
+		Consistency: mount.Consistency(volume.Consistency),
+	}
+}
+
+func handleVolumeToMount(
 	volume composetypes.ServiceVolumeConfig,
 	stackVolumes volumes,
 	namespace Namespace,
 ) (mount.Mount, error) {
-	result := mount.Mount{
-		Type:        mount.Type(volume.Type),
-		Source:      volume.Source,
-		Target:      volume.Target,
-		ReadOnly:    volume.ReadOnly,
-		Consistency: mount.Consistency(volume.Consistency),
-	}
+	result := createMountFromVolume(volume)
 
+	if volume.Tmpfs != nil {
+		return mount.Mount{}, errors.New("tmpfs options are incompatible with type volume")
+	}
+	if volume.Bind != nil {
+		return mount.Mount{}, errors.New("bind options are incompatible with type volume")
+	}
 	// Anonymous volumes
 	if volume.Source == "" {
 		return result, nil
 	}
-	if volume.Type == "volume" && volume.Bind != nil {
-		return result, errors.New("bind options are incompatible with type volume")
-	}
-	if volume.Type == "bind" && volume.Volume != nil {
-		return result, errors.New("volume options are incompatible with type bind")
-	}
-
-	if volume.Bind != nil {
-		result.BindOptions = &mount.BindOptions{
-			Propagation: mount.Propagation(volume.Bind.Propagation),
-		}
-	}
-	// Binds volumes
-	if volume.Type == "bind" {
-		return result, nil
-	}
 
 	stackVolume, exists := stackVolumes[volume.Source]
 	if !exists {
-		return result, errors.Errorf("undefined volume %q", volume.Source)
+		return mount.Mount{}, errors.Errorf("undefined volume %q", volume.Source)
 	}
 
 	result.Source = namespace.Scope(volume.Source)
@@ -85,6 +79,62 @@ func convertVolumeToMount(
 		}
 	}
 
-	// Named volumes
 	return result, nil
 }
+
+func handleBindToMount(volume composetypes.ServiceVolumeConfig) (mount.Mount, error) {
+	result := createMountFromVolume(volume)
+
+	if volume.Source == "" {
+		return mount.Mount{}, errors.New("invalid bind source, source cannot be empty")
+	}
+	if volume.Volume != nil {
+		return mount.Mount{}, errors.New("volume options are incompatible with type bind")
+	}
+	if volume.Tmpfs != nil {
+		return mount.Mount{}, errors.New("tmpfs options are incompatible with type bind")
+	}
+	if volume.Bind != nil {
+		result.BindOptions = &mount.BindOptions{
+			Propagation: mount.Propagation(volume.Bind.Propagation),
+		}
+	}
+	return result, nil
+}
+
+func handleTmpfsToMount(volume composetypes.ServiceVolumeConfig) (mount.Mount, error) {
+	result := createMountFromVolume(volume)
+
+	if volume.Source != "" {
+		return mount.Mount{}, errors.New("invalid tmpfs source, source must be empty")
+	}
+	if volume.Bind != nil {
+		return mount.Mount{}, errors.New("bind options are incompatible with type tmpfs")
+	}
+	if volume.Volume != nil {
+		return mount.Mount{}, errors.New("volume options are incompatible with type tmpfs")
+	}
+	if volume.Tmpfs != nil {
+		result.TmpfsOptions = &mount.TmpfsOptions{
+			SizeBytes: volume.Tmpfs.Size,
+		}
+	}
+	return result, nil
+}
+
+func convertVolumeToMount(
+	volume composetypes.ServiceVolumeConfig,
+	stackVolumes volumes,
+	namespace Namespace,
+) (mount.Mount, error) {
+
+	switch volume.Type {
+	case "volume", "":
+		return handleVolumeToMount(volume, stackVolumes, namespace)
+	case "bind":
+		return handleBindToMount(volume)
+	case "tmpfs":
+		return handleTmpfsToMount(volume)
+	}
+	return mount.Mount{}, errors.New("volume type must be volume, bind, or tmpfs")
+}

cli/compose/convert/volume_test.go

@@ -22,7 +22,28 @@ func TestConvertVolumeToMountAnonymousVolume(t *testing.T) {
 	assert.Equal(t, expected, mount)
 }
 
-func TestConvertVolumeToMountConflictingOptionsBind(t *testing.T) {
+func TestConvertVolumeToMountAnonymousBind(t *testing.T) {
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "bind",
+		Target: "/foo/bar",
+		Bind: &composetypes.ServiceVolumeBind{
+			Propagation: "slave",
+		},
+	}
+	_, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
+	assert.EqualError(t, err, "invalid bind source, source cannot be empty")
+}
+
+func TestConvertVolumeToMountUnapprovedType(t *testing.T) {
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "foo",
+		Target: "/foo/bar",
+	}
+	_, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
+	assert.EqualError(t, err, "volume type must be volume, bind, or tmpfs")
+}
+
+func TestConvertVolumeToMountConflictingOptionsBindInVolume(t *testing.T) {
 	namespace := NewNamespace("foo")
 
 	config := composetypes.ServiceVolumeConfig{
@@ -37,7 +58,22 @@ func TestConvertVolumeToMountConflictingOptionsBind(t *testing.T) {
 	assert.EqualError(t, err, "bind options are incompatible with type volume")
 }
 
-func TestConvertVolumeToMountConflictingOptionsVolume(t *testing.T) {
+func TestConvertVolumeToMountConflictingOptionsTmpfsInVolume(t *testing.T) {
+	namespace := NewNamespace("foo")
+
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "volume",
+		Source: "foo",
+		Target: "/target",
+		Tmpfs: &composetypes.ServiceVolumeTmpfs{
+			Size: 1000,
+		},
+	}
+	_, err := convertVolumeToMount(config, volumes{}, namespace)
+	assert.EqualError(t, err, "tmpfs options are incompatible with type volume")
+}
+
+func TestConvertVolumeToMountConflictingOptionsVolumeInBind(t *testing.T) {
 	namespace := NewNamespace("foo")
 
 	config := composetypes.ServiceVolumeConfig{
@@ -52,6 +88,49 @@ func TestConvertVolumeToMountConflictingOptionsVolume(t *testing.T) {
 	assert.EqualError(t, err, "volume options are incompatible with type bind")
 }
 
+func TestConvertVolumeToMountConflictingOptionsTmpfsInBind(t *testing.T) {
+	namespace := NewNamespace("foo")
+
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "bind",
+		Source: "/foo",
+		Target: "/target",
+		Tmpfs: &composetypes.ServiceVolumeTmpfs{
+			Size: 1000,
+		},
+	}
+	_, err := convertVolumeToMount(config, volumes{}, namespace)
+	assert.EqualError(t, err, "tmpfs options are incompatible with type bind")
+}
+
+func TestConvertVolumeToMountConflictingOptionsBindInTmpfs(t *testing.T) {
+	namespace := NewNamespace("foo")
+
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "tmpfs",
+		Target: "/target",
+		Bind: &composetypes.ServiceVolumeBind{
+			Propagation: "slave",
+		},
+	}
+	_, err := convertVolumeToMount(config, volumes{}, namespace)
+	assert.EqualError(t, err, "bind options are incompatible with type tmpfs")
+}
+
+func TestConvertVolumeToMountConflictingOptionsVolumeInTmpfs(t *testing.T) {
+	namespace := NewNamespace("foo")
+
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "tmpfs",
+		Target: "/target",
+		Volume: &composetypes.ServiceVolumeVolume{
+			NoCopy: true,
+		},
+	}
+	_, err := convertVolumeToMount(config, volumes{}, namespace)
+	assert.EqualError(t, err, "volume options are incompatible with type tmpfs")
+}
+
 func TestConvertVolumeToMountNamedVolume(t *testing.T) {
 	stackVolumes := volumes{
 		"normal": composetypes.VolumeConfig{
@@ -231,3 +310,35 @@ func TestConvertVolumeToMountVolumeDoesNotExist(t *testing.T) {
 	_, err := convertVolumeToMount(config, volumes{}, namespace)
 	assert.EqualError(t, err, "undefined volume \"unknown\"")
 }
+
+func TestConvertTmpfsToMountVolume(t *testing.T) {
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "tmpfs",
+		Target: "/foo/bar",
+		Tmpfs: &composetypes.ServiceVolumeTmpfs{
+			Size: 1000,
+		},
+	}
+	expected := mount.Mount{
+		Type:         mount.TypeTmpfs,
+		Target:       "/foo/bar",
+		TmpfsOptions: &mount.TmpfsOptions{SizeBytes: 1000},
+	}
+	mount, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
+	assert.NoError(t, err)
+	assert.Equal(t, expected, mount)
+}
+
+func TestConvertTmpfsToMountVolumeWithSource(t *testing.T) {
+	config := composetypes.ServiceVolumeConfig{
+		Type:   "tmpfs",
+		Source: "/bar",
+		Target: "/foo/bar",
+		Tmpfs: &composetypes.ServiceVolumeTmpfs{
+			Size: 1000,
+		},
+	}
+
+	_, err := convertVolumeToMount(config, volumes{}, NewNamespace("foo"))
+	assert.EqualError(t, err, "invalid tmpfs source, source must be empty")
+}

cli/compose/loader/full-example.yml

@@ -1,4 +1,4 @@
-version: "3.5"
+version: "3.6"
 
 services:
   foo:
@@ -249,6 +249,10 @@ services:
         source: ./opt
         target: /opt
         consistency: cached
+      - type: tmpfs
+        target: /opt
+        tmpfs:
+          size: 10000
 
     working_dir: /code
 

cli/compose/loader/loader_test.go

@@ -1149,6 +1149,9 @@ func TestFullExample(t *testing.T) {
 			{Source: homeDir + "/configs", Target: "/etc/configs/", Type: "bind", ReadOnly: true},
 			{Source: "datavolume", Target: "/var/lib/mysql", Type: "volume"},
 			{Source: workingDir + "/opt", Target: "/opt", Consistency: "cached", Type: "bind"},
+			{Target: "/opt", Type: "tmpfs", Tmpfs: &types.ServiceVolumeTmpfs{
+				Size: int64(10000),
+			}},
 		},
 		WorkingDir: "/code",
 	}
@@ -1220,6 +1223,106 @@ func TestFullExample(t *testing.T) {
 	assert.Equal(t, expectedVolumeConfig, config.Volumes)
 }
 
+func TestLoadTmpfsVolume(t *testing.T) {
+	config, err := loadYAML(`
+version: "3.6"
+services:
+  tmpfs:
+    image: nginx:latest
+    volumes:
+      - type: tmpfs
+        target: /app
+        tmpfs:
+          size: 10000
+`)
+	require.NoError(t, err)
+
+	expected := types.ServiceVolumeConfig{
+		Target: "/app",
+		Type:   "tmpfs",
+		Tmpfs: &types.ServiceVolumeTmpfs{
+			Size: int64(10000),
+		},
+	}
+
+	require.Len(t, config.Services, 1)
+	assert.Len(t, config.Services[0].Volumes, 1)
+	assert.Equal(t, expected, config.Services[0].Volumes[0])
+}
+
+func TestLoadTmpfsVolumeAdditionalPropertyNotAllowed(t *testing.T) {
+	_, err := loadYAML(`
+version: "3.5"
+services:
+  tmpfs:
+    image: nginx:latest
+    volumes:
+      - type: tmpfs
+        target: /app
+        tmpfs:
+          size: 10000
+`)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "services.tmpfs.volumes.0 Additional property tmpfs is not allowed")
+}
+
+func TestLoadTmpfsVolumeSizeCanBeZero(t *testing.T) {
+	config, err := loadYAML(`
+version: "3.6"
+services:
+  tmpfs:
+    image: nginx:latest
+    volumes:
+      - type: tmpfs
+        target: /app
+        tmpfs:
+          size: 0
+`)
+	require.NoError(t, err)
+
+	expected := types.ServiceVolumeConfig{
+		Target: "/app",
+		Type:   "tmpfs",
+		Tmpfs:  &types.ServiceVolumeTmpfs{},
+	}
+
+	require.Len(t, config.Services, 1)
+	assert.Len(t, config.Services[0].Volumes, 1)
+	assert.Equal(t, expected, config.Services[0].Volumes[0])
+}
+
+func TestLoadTmpfsVolumeSizeMustBeGTEQZero(t *testing.T) {
+	_, err := loadYAML(`
+version: "3.6"
+services:
+  tmpfs:
+    image: nginx:latest
+    volumes:
+      - type: tmpfs
+        target: /app
+        tmpfs:
+          size: -1
+`)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "services.tmpfs.volumes.0.tmpfs.size Must be greater than or equal to 0")
+}
+
+func TestLoadTmpfsVolumeSizeMustBeInteger(t *testing.T) {
+	_, err := loadYAML(`
+version: "3.6"
+services:
+  tmpfs:
+    image: nginx:latest
+    volumes:
+      - type: tmpfs
+        target: /app
+        tmpfs:
+          size: 0.0001
+`)
+	require.Error(t, err)
+	assert.Contains(t, err.Error(), "services.tmpfs.volumes.0.tmpfs.size must be a integer")
+}
+
 func serviceSort(services []types.ServiceConfig) []types.ServiceConfig {
 	sort.Sort(servicesByName(services))
 	return services

cli/compose/schema/data/config_schema_v3.6.json

@@ -0,0 +1,582 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "id": "config_schema_v3.5.json",
+  "type": "object",
+  "required": ["version"],
+
+  "properties": {
+    "version": {
+      "type": "string"
+    },
+
+    "services": {
+      "id": "#/properties/services",
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9._-]+$": {
+          "$ref": "#/definitions/service"
+        }
+      },
+      "additionalProperties": false
+    },
+
+    "networks": {
+      "id": "#/properties/networks",
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9._-]+$": {
+          "$ref": "#/definitions/network"
+        }
+      }
+    },
+
+    "volumes": {
+      "id": "#/properties/volumes",
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9._-]+$": {
+          "$ref": "#/definitions/volume"
+        }
+      },
+      "additionalProperties": false
+    },
+
+    "secrets": {
+      "id": "#/properties/secrets",
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9._-]+$": {
+          "$ref": "#/definitions/secret"
+        }
+      },
+      "additionalProperties": false
+    },
+
+    "configs": {
+      "id": "#/properties/configs",
+      "type": "object",
+      "patternProperties": {
+        "^[a-zA-Z0-9._-]+$": {
+          "$ref": "#/definitions/config"
+        }
+      },
+      "additionalProperties": false
+    }
+  },
+
+  "patternProperties": {"^x-": {}},
+  "additionalProperties": false,
+
+  "definitions": {
+
+    "service": {
+      "id": "#/definitions/service",
+      "type": "object",
+
+      "properties": {
+        "deploy": {"$ref": "#/definitions/deployment"},
+        "build": {
+          "oneOf": [
+            {"type": "string"},
+            {
+              "type": "object",
+              "properties": {
+                "context": {"type": "string"},
+                "dockerfile": {"type": "string"},
+                "args": {"$ref": "#/definitions/list_or_dict"},
+                "labels": {"$ref": "#/definitions/list_or_dict"},
+                "cache_from": {"$ref": "#/definitions/list_of_strings"},
+                "network": {"type": "string"},
+                "target": {"type": "string"},
+                "shm_size": {"type": ["integer", "string"]}
+              },
+              "additionalProperties": false
+            }
+          ]
+        },
+        "cap_add": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "cap_drop": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "cgroup_parent": {"type": "string"},
+        "command": {
+          "oneOf": [
+            {"type": "string"},
+            {"type": "array", "items": {"type": "string"}}
+          ]
+        },
+        "configs": {
+          "type": "array",
+          "items": {
+            "oneOf": [
+              {"type": "string"},
+              {
+                "type": "object",
+                "properties": {
+                  "source": {"type": "string"},
+                  "target": {"type": "string"},
+                  "uid": {"type": "string"},
+                  "gid": {"type": "string"},
+                  "mode": {"type": "number"}
+                }
+              }
+            ]
+          }
+        },
+        "container_name": {"type": "string"},
+        "credential_spec": {"type": "object", "properties": {
+          "file": {"type": "string"},
+          "registry": {"type": "string"}
+        }},
+        "depends_on": {"$ref": "#/definitions/list_of_strings"},
+        "devices": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "dns": {"$ref": "#/definitions/string_or_list"},
+        "dns_search": {"$ref": "#/definitions/string_or_list"},
+        "domainname": {"type": "string"},
+        "entrypoint": {
+          "oneOf": [
+            {"type": "string"},
+            {"type": "array", "items": {"type": "string"}}
+          ]
+        },
+        "env_file": {"$ref": "#/definitions/string_or_list"},
+        "environment": {"$ref": "#/definitions/list_or_dict"},
+
+        "expose": {
+          "type": "array",
+          "items": {
+            "type": ["string", "number"],
+            "format": "expose"
+          },
+          "uniqueItems": true
+        },
+
+        "external_links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "extra_hosts": {"$ref": "#/definitions/list_or_dict"},
+        "healthcheck": {"$ref": "#/definitions/healthcheck"},
+        "hostname": {"type": "string"},
+        "image": {"type": "string"},
+        "ipc": {"type": "string"},
+        "isolation": {"type": "string"},
+        "labels": {"$ref": "#/definitions/list_or_dict"},
+        "links": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+
+        "logging": {
+            "type": "object",
+
+            "properties": {
+                "driver": {"type": "string"},
+                "options": {
+                  "type": "object",
+                  "patternProperties": {
+                    "^.+$": {"type": ["string", "number", "null"]}
+                  }
+                }
+            },
+            "additionalProperties": false
+        },
+
+        "mac_address": {"type": "string"},
+        "network_mode": {"type": "string"},
+
+        "networks": {
+          "oneOf": [
+            {"$ref": "#/definitions/list_of_strings"},
+            {
+              "type": "object",
+              "patternProperties": {
+                "^[a-zA-Z0-9._-]+$": {
+                  "oneOf": [
+                    {
+                      "type": "object",
+                      "properties": {
+                        "aliases": {"$ref": "#/definitions/list_of_strings"},
+                        "ipv4_address": {"type": "string"},
+                        "ipv6_address": {"type": "string"}
+                      },
+                      "additionalProperties": false
+                    },
+                    {"type": "null"}
+                  ]
+                }
+              },
+              "additionalProperties": false
+            }
+          ]
+        },
+        "pid": {"type": ["string", "null"]},
+
+        "ports": {
+          "type": "array",
+          "items": {
+            "oneOf": [
+              {"type": "number", "format": "ports"},
+              {"type": "string", "format": "ports"},
+              {
+                "type": "object",
+                "properties": {
+                  "mode": {"type": "string"},
+                  "target": {"type": "integer"},
+                  "published": {"type": "integer"},
+                  "protocol": {"type": "string"}
+                },
+                "additionalProperties": false
+              }
+            ]
+          },
+          "uniqueItems": true
+        },
+
+        "privileged": {"type": "boolean"},
+        "read_only": {"type": "boolean"},
+        "restart": {"type": "string"},
+        "security_opt": {"type": "array", "items": {"type": "string"}, "uniqueItems": true},
+        "shm_size": {"type": ["number", "string"]},
+        "secrets": {
+          "type": "array",
+          "items": {
+            "oneOf": [
+              {"type": "string"},
+              {
+                "type": "object",
+                "properties": {
+                  "source": {"type": "string"},
+                  "target": {"type": "string"},
+                  "uid": {"type": "string"},
+                  "gid": {"type": "string"},
+                  "mode": {"type": "number"}
+                }
+              }
+            ]
+          }
+        },
+        "sysctls": {"$ref": "#/definitions/list_or_dict"},
+        "stdin_open": {"type": "boolean"},
+        "stop_grace_period": {"type": "string", "format": "duration"},
+        "stop_signal": {"type": "string"},
+        "tmpfs": {"$ref": "#/definitions/string_or_list"},
+        "tty": {"type": "boolean"},
+        "ulimits": {
+          "type": "object",
+          "patternProperties": {
+            "^[a-z]+$": {
+              "oneOf": [
+                {"type": "integer"},
+                {
+                  "type":"object",
+                  "properties": {
+                    "hard": {"type": "integer"},
+                    "soft": {"type": "integer"}
+                  },
+                  "required": ["soft", "hard"],
+                  "additionalProperties": false
+                }
+              ]
+            }
+          }
+        },
+        "user": {"type": "string"},
+        "userns_mode": {"type": "string"},
+        "volumes": {
+          "type": "array",
+          "items": {
+            "oneOf": [
+              {"type": "string"},
+              {
+                "type": "object",
+                "required": ["type"],
+                "properties": {
+                  "type": {"type": "string"},
+                  "source": {"type": "string"},
+                  "target": {"type": "string"},
+                  "read_only": {"type": "boolean"},
+                  "consistency": {"type": "string"},
+                  "bind": {
+                    "type": "object",
+                    "properties": {
+                      "propagation": {"type": "string"}
+                    }
+                  },
+                  "volume": {
+                    "type": "object",
+                    "properties": {
+                      "nocopy": {"type": "boolean"}
+                    }
+                  },
+                  "tmpfs": {
+                    "type": "object",
+                    "properties": {
+                      "size": {
+                        "type": "integer",
+                        "minimum": 0
+                      }
+                    }
+                  }
+                },
+                "additionalProperties": false
+              }
+            ],
+            "uniqueItems": true
+          }
+        },
+        "working_dir": {"type": "string"}
+      },
+      "additionalProperties": false
+    },
+
+    "healthcheck": {
+      "id": "#/definitions/healthcheck",
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "disable": {"type": "boolean"},
+        "interval": {"type": "string", "format": "duration"},
+        "retries": {"type": "number"},
+        "test": {
+          "oneOf": [
+            {"type": "string"},
+            {"type": "array", "items": {"type": "string"}}
+          ]
+        },
+        "timeout": {"type": "string", "format": "duration"},
+        "start_period": {"type": "string", "format": "duration"}
+      }
+    },
+    "deployment": {
+      "id": "#/definitions/deployment",
+      "type": ["object", "null"],
+      "properties": {
+        "mode": {"type": "string"},
+        "endpoint_mode": {"type": "string"},
+        "replicas": {"type": "integer"},
+        "labels": {"$ref": "#/definitions/list_or_dict"},
+        "update_config": {
+          "type": "object",
+          "properties": {
+            "parallelism": {"type": "integer"},
+            "delay": {"type": "string", "format": "duration"},
+            "failure_action": {"type": "string"},
+            "monitor": {"type": "string", "format": "duration"},
+            "max_failure_ratio": {"type": "number"},
+            "order": {"type": "string", "enum": [
+              "start-first", "stop-first"
+            ]}
+          },
+          "additionalProperties": false
+        },
+        "resources": {
+          "type": "object",
+          "properties": {
+            "limits": {
+              "type": "object",
+              "properties": {
+                "cpus": {"type": "string"},
+                "memory": {"type": "string"}
+              },
+              "additionalProperties": false
+            },
+            "reservations": {
+              "type": "object",
+              "properties": {
+                "cpus": {"type": "string"},
+                "memory": {"type": "string"},
+                "generic_resources": {"$ref": "#/definitions/generic_resources"}
+              },
+              "additionalProperties": false
+            }
+          },
+          "additionalProperties": false
+        },
+        "restart_policy": {
+          "type": "object",
+          "properties": {
+            "condition": {"type": "string"},
+            "delay": {"type": "string", "format": "duration"},
+            "max_attempts": {"type": "integer"},
+            "window": {"type": "string", "format": "duration"}
+          },
+          "additionalProperties": false
+        },
+        "placement": {
+          "type": "object",
+          "properties": {
+            "constraints": {"type": "array", "items": {"type": "string"}},
+            "preferences": {
+              "type": "array",
+              "items": {
+                "type": "object",
+                "properties": {
+                  "spread": {"type": "string"}
+                },
+                "additionalProperties": false
+              }
+            }
+          },
+          "additionalProperties": false
+        }
+      },
+      "additionalProperties": false
+    },
+
+    "generic_resources": {
+      "id": "#/definitions/generic_resources",
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "discrete_resource_spec": {
+            "type": "object",
+            "properties": {
+              "kind": {"type": "string"},
+              "value": {"type": "number"}
+            },
+            "additionalProperties": false
+          }
+        },
+        "additionalProperties": false
+      }
+    },
+
+    "network": {
+      "id": "#/definitions/network",
+      "type": ["object", "null"],
+      "properties": {
+        "name": {"type": "string"},
+        "driver": {"type": "string"},
+        "driver_opts": {
+          "type": "object",
+          "patternProperties": {
+            "^.+$": {"type": ["string", "number"]}
+          }
+        },
+        "ipam": {
+          "type": "object",
+          "properties": {
+            "driver": {"type": "string"},
+            "config": {
+              "type": "array",
+              "items": {
+                "type": "object",
+                "properties": {
+                  "subnet": {"type": "string"}
+                },
+                "additionalProperties": false
+              }
+            }
+          },
+          "additionalProperties": false
+        },
+        "external": {
+          "type": ["boolean", "object"],
+          "properties": {
+            "name": {"type": "string"}
+          },
+          "additionalProperties": false
+        },
+        "internal": {"type": "boolean"},
+        "attachable": {"type": "boolean"},
+        "labels": {"$ref": "#/definitions/list_or_dict"}
+      },
+      "additionalProperties": false
+    },
+
+    "volume": {
+      "id": "#/definitions/volume",
+      "type": ["object", "null"],
+      "properties": {
+        "name": {"type": "string"},
+        "driver": {"type": "string"},
+        "driver_opts": {
+          "type": "object",
+          "patternProperties": {
+            "^.+$": {"type": ["string", "number"]}
+          }
+        },
+        "external": {
+          "type": ["boolean", "object"],
+          "properties": {
+            "name": {"type": "string"}
+          },
+          "additionalProperties": false
+        },
+        "labels": {"$ref": "#/definitions/list_or_dict"}
+      },
+      "additionalProperties": false
+    },
+
+    "secret": {
+      "id": "#/definitions/secret",
+      "type": "object",
+      "properties": {
+        "name": {"type": "string"},
+        "file": {"type": "string"},
+        "external": {
+          "type": ["boolean", "object"],
+          "properties": {
+            "name": {"type": "string"}
+          }
+        },
+        "labels": {"$ref": "#/definitions/list_or_dict"}
+      },
+      "additionalProperties": false
+    },
+
+    "config": {
+      "id": "#/definitions/config",
+      "type": "object",
+      "properties": {
+        "name": {"type": "string"},
+        "file": {"type": "string"},
+        "external": {
+          "type": ["boolean", "object"],
+          "properties": {
+            "name": {"type": "string"}
+          }
+        },
+        "labels": {"$ref": "#/definitions/list_or_dict"}
+      },
+      "additionalProperties": false
+    },
+
+    "string_or_list": {
+      "oneOf": [
+        {"type": "string"},
+        {"$ref": "#/definitions/list_of_strings"}
+      ]
+    },
+
+    "list_of_strings": {
+      "type": "array",
+      "items": {"type": "string"},
+      "uniqueItems": true
+    },
+
+    "list_or_dict": {
+      "oneOf": [
+        {
+          "type": "object",
+          "patternProperties": {
+            ".+": {
+              "type": ["string", "number", "null"]
+            }
+          },
+          "additionalProperties": false
+        },
+        {"type": "array", "items": {"type": "string"}, "uniqueItems": true}
+      ]
+    },
+
+    "constraints": {
+      "service": {
+        "id": "#/definitions/constraints/service",
+        "anyOf": [
+          {"required": ["build"]},
+          {"required": ["image"]}
+        ],
+        "properties": {
+          "build": {
+            "required": ["context"]
+          }
+        }
+      }
+    }
+  }
+}

cli/compose/types/types.go

@@ -23,7 +23,6 @@ var UnsupportedProperties = []string{
 	"security_opt",
 	"shm_size",
 	"sysctls",
-	"tmpfs",
 	"ulimits",
 	"userns_mode",
 }
@@ -284,6 +283,7 @@ type ServiceVolumeConfig struct {
 	Consistency string
 	Bind        *ServiceVolumeBind
 	Volume      *ServiceVolumeVolume
+	Tmpfs       *ServiceVolumeTmpfs
 }
 
 // ServiceVolumeBind are options for a service volume of type bind
@@ -296,6 +296,11 @@ type ServiceVolumeVolume struct {
 	NoCopy bool `mapstructure:"nocopy"`
 }
 
+// ServiceVolumeTmpfs are options for a service volume of type tmpfs
+type ServiceVolumeTmpfs struct {
+	Size int64
+}
+
 // FileReferenceConfig for a reference to a swarm file object
 type FileReferenceConfig struct {
 	Source string