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loader_test.go
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loader_test.go
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/*
Copyright 2020 The Compose Specification Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package loader
import (
"bytes"
"io/ioutil"
"os"
"sort"
"strings"
"testing"
"time"
"github.com/compose-spec/compose-go/types"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/sirupsen/logrus"
"gotest.tools/v3/assert"
is "gotest.tools/v3/assert/cmp"
)
func buildConfigDetails(source map[string]interface{}, env map[string]string) types.ConfigDetails {
workingDir, err := os.Getwd()
if err != nil {
panic(err)
}
return types.ConfigDetails{
WorkingDir: workingDir,
ConfigFiles: []types.ConfigFile{
{Filename: "filename.yml", Config: source},
},
Environment: env,
}
}
func loadYAML(yaml string) (*types.Project, error) {
return loadYAMLWithEnv(yaml, nil)
}
func loadYAMLWithEnv(yaml string, env map[string]string) (*types.Project, error) {
dict, err := ParseYAML([]byte(yaml))
if err != nil {
return nil, err
}
return Load(buildConfigDetails(dict, env), func(options *Options) {
options.SkipConsistencyCheck = true
options.SkipNormalization = true
})
}
var sampleYAML = `
services:
foo:
image: busybox
networks:
with_me:
bar:
image: busybox
environment:
- FOO=1
networks:
- with_ipam
volumes:
hello:
driver: default
driver_opts:
beep: boop
networks:
default:
driver: bridge
driver_opts:
beep: boop
with_ipam:
ipam:
driver: default
config:
- subnet: 172.28.0.0/16
`
var sampleDict = map[string]interface{}{
"services": map[string]interface{}{
"foo": map[string]interface{}{
"image": "busybox",
"networks": map[string]interface{}{"with_me": nil},
},
"bar": map[string]interface{}{
"image": "busybox",
"environment": []interface{}{"FOO=1"},
"networks": []interface{}{"with_ipam"},
},
},
"volumes": map[string]interface{}{
"hello": map[string]interface{}{
"driver": "default",
"driver_opts": map[string]interface{}{
"beep": "boop",
},
},
},
"networks": map[string]interface{}{
"default": map[string]interface{}{
"driver": "bridge",
"driver_opts": map[string]interface{}{
"beep": "boop",
},
},
"with_ipam": map[string]interface{}{
"ipam": map[string]interface{}{
"driver": "default",
"config": []interface{}{
map[string]interface{}{
"subnet": "172.28.0.0/16",
},
},
},
},
},
}
var samplePortsConfig = []types.ServicePortConfig{
{
Mode: "ingress",
Target: 8080,
Published: 80,
Protocol: "tcp",
},
{
Mode: "ingress",
Target: 8081,
Published: 81,
Protocol: "tcp",
},
{
Mode: "ingress",
Target: 8082,
Published: 82,
Protocol: "tcp",
},
{
Mode: "ingress",
Target: 8090,
Published: 90,
Protocol: "udp",
},
{
Mode: "ingress",
Target: 8091,
Published: 91,
Protocol: "udp",
},
{
Mode: "ingress",
Target: 8092,
Published: 92,
Protocol: "udp",
},
{
Mode: "ingress",
Target: 8500,
Published: 85,
Protocol: "tcp",
},
{
Mode: "ingress",
Target: 8600,
Published: 0,
Protocol: "tcp",
},
{
Target: 53,
Published: 10053,
Protocol: "udp",
},
{
Mode: "host",
Target: 22,
Published: 10022,
},
}
func strPtr(val string) *string {
return &val
}
var sampleConfig = types.Config{
Services: []types.ServiceConfig{
{
Name: "foo",
Image: "busybox",
Environment: map[string]*string{},
Networks: map[string]*types.ServiceNetworkConfig{
"with_me": nil,
},
},
{
Name: "bar",
Image: "busybox",
Environment: map[string]*string{"FOO": strPtr("1")},
Networks: map[string]*types.ServiceNetworkConfig{
"with_ipam": nil,
},
},
},
Networks: map[string]types.NetworkConfig{
"default": {
Driver: "bridge",
DriverOpts: map[string]string{
"beep": "boop",
},
},
"with_ipam": {
Ipam: types.IPAMConfig{
Driver: "default",
Config: []*types.IPAMPool{
{
Subnet: "172.28.0.0/16",
},
},
},
},
},
Volumes: map[string]*types.VolumeConfig{
"hello": {
Driver: "default",
DriverOpts: map[string]string{
"beep": "boop",
},
},
},
}
func TestParseYAML(t *testing.T) {
dict, err := ParseYAML([]byte(sampleYAML))
assert.NilError(t, err)
assert.Check(t, is.DeepEqual(sampleDict, dict))
}
func TestLoad(t *testing.T) {
actual, err := Load(buildConfigDetails(sampleDict, nil), func(options *Options) {
options.SkipNormalization = true
options.SkipConsistencyCheck = true
})
assert.NilError(t, err)
assert.Check(t, is.DeepEqual(serviceSort(sampleConfig.Services), serviceSort(actual.Services)))
assert.Check(t, is.DeepEqual(sampleConfig.Networks, actual.Networks))
assert.Check(t, is.DeepEqual(sampleConfig.Volumes, actual.Volumes))
}
func TestLoadExtensions(t *testing.T) {
actual, err := loadYAML(`
services:
foo:
image: busybox
x-foo: bar`)
assert.NilError(t, err)
assert.Check(t, is.Len(actual.Services, 1))
service := actual.Services[0]
assert.Check(t, is.Equal("busybox", service.Image))
extras := map[string]interface{}{
"x-foo": "bar",
}
assert.Check(t, is.DeepEqual(extras, service.Extensions))
}
func TestLoadExtends(t *testing.T) {
actual, err := loadYAML(`
services:
foo:
image: busybox
extends:
service: bar
bar:
image: alpine
command: echo`)
assert.NilError(t, err)
assert.Check(t, is.Len(actual.Services, 2))
service, err := actual.GetService("foo")
assert.NilError(t, err)
assert.Check(t, service.Image == "busybox")
assert.Check(t, service.Command[0] == "echo")
}
func TestLoadCredentialSpec(t *testing.T) {
actual, err := loadYAML(`
services:
foo:
image: busybox
credential_spec:
config: "0bt9dmxjvjiqermk6xrop3ekq"
`)
assert.NilError(t, err)
assert.Assert(t, is.Len(actual.Services, 1))
assert.Check(t, is.Equal(actual.Services[0].CredentialSpec.Config, "0bt9dmxjvjiqermk6xrop3ekq"))
}
func TestParseAndLoad(t *testing.T) {
actual, err := loadYAML(sampleYAML)
assert.NilError(t, err)
assert.Check(t, is.DeepEqual(serviceSort(sampleConfig.Services), serviceSort(actual.Services)))
assert.Check(t, is.DeepEqual(sampleConfig.Networks, actual.Networks))
assert.Check(t, is.DeepEqual(sampleConfig.Volumes, actual.Volumes))
}
func TestInvalidTopLevelObjectType(t *testing.T) {
_, err := loadYAML("1")
assert.ErrorContains(t, err, "Top-level object must be a mapping")
_, err = loadYAML("\"hello\"")
assert.ErrorContains(t, err, "Top-level object must be a mapping")
_, err = loadYAML("[\"hello\"]")
assert.ErrorContains(t, err, "Top-level object must be a mapping")
}
func TestNonStringKeys(t *testing.T) {
_, err := loadYAML(`
123:
foo:
image: busybox
`)
assert.ErrorContains(t, err, "Non-string key at top level: 123")
_, err = loadYAML(`
services:
foo:
image: busybox
123:
image: busybox
`)
assert.ErrorContains(t, err, "Non-string key in services: 123")
_, err = loadYAML(`
services:
foo:
image: busybox
networks:
default:
ipam:
config:
- 123: oh dear
`)
assert.ErrorContains(t, err, "Non-string key in networks.default.ipam.config[0]: 123")
_, err = loadYAML(`
services:
dict-env:
image: busybox
environment:
1: FOO
`)
assert.ErrorContains(t, err, "Non-string key in services.dict-env.environment: 1")
}
func TestV1Unsupported(t *testing.T) {
_, err := loadYAML(`
foo:
image: busybox
`)
assert.Check(t, err != nil)
}
func TestNonMappingObject(t *testing.T) {
_, err := loadYAML(`
services:
- foo:
image: busybox
`)
assert.ErrorContains(t, err, "services must be a mapping")
_, err = loadYAML(`
services:
foo: busybox
`)
assert.ErrorContains(t, err, "services.foo must be a mapping")
_, err = loadYAML(`
networks:
- default:
driver: bridge
`)
assert.ErrorContains(t, err, "networks must be a mapping")
_, err = loadYAML(`
networks:
default: bridge
`)
assert.ErrorContains(t, err, "networks.default must be a mapping")
_, err = loadYAML(`
volumes:
- data:
driver: local
`)
assert.ErrorContains(t, err, "volumes must be a mapping")
_, err = loadYAML(`
volumes:
data: local
`)
assert.ErrorContains(t, err, "volumes.data must be a mapping")
}
func TestNonStringImage(t *testing.T) {
_, err := loadYAML(`
services:
foo:
image: ["busybox", "latest"]
`)
assert.ErrorContains(t, err, "services.foo.image must be a string")
}
func TestLoadWithEnvironment(t *testing.T) {
config, err := loadYAMLWithEnv(`
services:
dict-env:
image: busybox
environment:
FOO: "1"
BAR: 2
BAZ: 2.5
QUX:
QUUX:
list-env:
image: busybox
environment:
- FOO=1
- BAR=2
- BAZ=2.5
- QUX=
- QUUX
`, map[string]string{"QUX": "qux"})
assert.NilError(t, err)
expected := types.MappingWithEquals{
"FOO": strPtr("1"),
"BAR": strPtr("2"),
"BAZ": strPtr("2.5"),
"QUX": strPtr("qux"),
"QUUX": nil,
}
assert.Check(t, is.Equal(2, len(config.Services)))
for _, service := range config.Services {
assert.Check(t, is.DeepEqual(expected, service.Environment))
}
}
func TestInvalidEnvironmentValue(t *testing.T) {
_, err := loadYAML(`
services:
dict-env:
image: busybox
environment:
FOO: ["1"]
`)
assert.ErrorContains(t, err, "services.dict-env.environment.FOO must be a string, number or null")
}
func TestInvalidEnvironmentObject(t *testing.T) {
_, err := loadYAML(`
services:
dict-env:
image: busybox
environment: "FOO=1"
`)
assert.ErrorContains(t, err, "services.dict-env.environment must be a mapping")
}
func TestLoadWithEnvironmentInterpolation(t *testing.T) {
home := "/home/foo"
config, err := loadYAMLWithEnv(`
services:
test:
image: busybox
labels:
- home1=$HOME
- home2=${HOME}
- nonexistent=$NONEXISTENT
- default=${NONEXISTENT-default}
networks:
test:
driver: $HOME
volumes:
test:
driver: $HOME
`, map[string]string{
"HOME": home,
"FOO": "foo",
})
assert.NilError(t, err)
expectedLabels := types.Labels{
"home1": home,
"home2": home,
"nonexistent": "",
"default": "default",
}
assert.Check(t, is.DeepEqual(expectedLabels, config.Services[0].Labels))
assert.Check(t, is.Equal(home, config.Networks["test"].Driver))
assert.Check(t, is.Equal(home, config.Volumes["test"].Driver))
}
func TestLoadWithInterpolationCastFull(t *testing.T) {
dict, err := ParseYAML([]byte(`
services:
web:
configs:
- source: appconfig
mode: $theint
secrets:
- source: super
mode: $theint
healthcheck:
retries: ${theint}
disable: $thebool
deploy:
replicas: $theint
update_config:
parallelism: $theint
max_failure_ratio: $thefloat
rollback_config:
parallelism: $theint
max_failure_ratio: $thefloat
restart_policy:
max_attempts: $theint
placement:
max_replicas_per_node: $theint
ports:
- $theint
- "34567"
- target: $theint
published: $theint
x-foo-bar: true
ulimits:
nproc: $theint
nofile:
hard: $theint
soft: $theint
privileged: $thebool
read_only: $thebool
stdin_open: ${thebool}
tty: $thebool
volumes:
- source: data
type: volume
read_only: $thebool
volume:
nocopy: $thebool
configs:
appconfig:
external: $thebool
secrets:
super:
external: $thebool
volumes:
data:
external: $thebool
networks:
front:
external: $thebool
internal: $thebool
attachable: $thebool
back:
`))
assert.NilError(t, err)
env := map[string]string{
"theint": "555",
"thefloat": "3.14",
"thebool": "true",
}
config, err := Load(buildConfigDetails(dict, env), func(options *Options) {
options.SkipNormalization = true
options.SkipConsistencyCheck = true
})
assert.NilError(t, err)
workingDir, err := os.Getwd()
assert.NilError(t, err)
expected := &types.Project{
Name: "",
WorkingDir: workingDir,
Services: []types.ServiceConfig{
{
Name: "web",
Configs: []types.ServiceConfigObjConfig{
{
Source: "appconfig",
Mode: uint32Ptr(555),
},
},
Secrets: []types.ServiceSecretConfig{
{
Source: "super",
Mode: uint32Ptr(555),
},
},
HealthCheck: &types.HealthCheckConfig{
Retries: uint64Ptr(555),
Disable: true,
},
Deploy: &types.DeployConfig{
Replicas: uint64Ptr(555),
UpdateConfig: &types.UpdateConfig{
Parallelism: uint64Ptr(555),
MaxFailureRatio: 3.14,
},
RollbackConfig: &types.UpdateConfig{
Parallelism: uint64Ptr(555),
MaxFailureRatio: 3.14,
},
RestartPolicy: &types.RestartPolicy{
MaxAttempts: uint64Ptr(555),
},
Placement: types.Placement{
MaxReplicas: 555,
},
},
Ports: []types.ServicePortConfig{
{Target: 555, Mode: "ingress", Protocol: "tcp"},
{Target: 34567, Mode: "ingress", Protocol: "tcp"},
{Target: 555, Published: 555, Extensions: map[string]interface{}{"x-foo-bar": true}},
},
Ulimits: map[string]*types.UlimitsConfig{
"nproc": {Single: 555},
"nofile": {Hard: 555, Soft: 555},
},
Privileged: true,
ReadOnly: true,
StdinOpen: true,
Tty: true,
Volumes: []types.ServiceVolumeConfig{
{
Source: "data",
Type: "volume",
ReadOnly: true,
Volume: &types.ServiceVolumeVolume{NoCopy: true},
},
},
Environment: types.MappingWithEquals{},
},
},
Configs: map[string]types.ConfigObjConfig{
"appconfig": {External: types.External{External: true}, Name: "appconfig"},
},
Secrets: map[string]types.SecretConfig{
"super": {External: types.External{External: true}, Name: "super"},
},
Volumes: map[string]*types.VolumeConfig{
"data": {External: types.External{External: true}, Name: "data"},
},
Networks: map[string]types.NetworkConfig{
"back": {},
"front": {
External: types.External{External: true},
Name: "front",
Internal: true,
Attachable: true,
},
},
}
assert.Check(t, is.DeepEqual(expected, config))
}
func TestUnsupportedProperties(t *testing.T) {
dict, err := ParseYAML([]byte(`
services:
web:
image: web
build:
context: ./web
links:
- bar
pid: host
db:
image: db
build:
context: ./db
`))
assert.NilError(t, err)
configDetails := buildConfigDetails(dict, nil)
_, err = Load(configDetails)
assert.NilError(t, err)
}
func TestDiscardEnvFileOption(t *testing.T) {
dict, err := ParseYAML([]byte(`services:
web:
image: nginx
env_file:
- example1.env
- example2.env
`))
expectedEnvironmentMap := types.MappingWithEquals{
"FOO": strPtr("foo_from_env_file"),
"BAZ": strPtr("baz_from_env_file"),
"BAR": strPtr("bar_from_env_file_2"), // Original value is overwritten by example2.env
"QUX": strPtr("quz_from_env_file_2"),
}
assert.NilError(t, err)
configDetails := buildConfigDetails(dict, nil)
// Default behavior keeps the `env_file` entries
configWithEnvFiles, err := Load(configDetails)
assert.NilError(t, err)
assert.DeepEqual(t, configWithEnvFiles.Services[0].EnvFile, types.StringList{"example1.env",
"example2.env"})
assert.DeepEqual(t, configWithEnvFiles.Services[0].Environment, expectedEnvironmentMap)
// Custom behavior removes the `env_file` entries
configWithoutEnvFiles, err := Load(configDetails, WithDiscardEnvFiles)
assert.NilError(t, err)
assert.DeepEqual(t, configWithoutEnvFiles.Services[0].EnvFile, types.StringList(nil))
assert.DeepEqual(t, configWithoutEnvFiles.Services[0].Environment, expectedEnvironmentMap)
}
func TestBuildProperties(t *testing.T) {
dict, err := ParseYAML([]byte(`
services:
web:
image: web
build: .
links:
- bar
db:
image: db
build:
context: ./db
`))
assert.NilError(t, err)
configDetails := buildConfigDetails(dict, nil)
_, err = Load(configDetails)
assert.NilError(t, err)
}
func TestDeprecatedProperties(t *testing.T) {
dict, err := ParseYAML([]byte(`
services:
web:
image: web
container_name: web
db:
image: db
container_name: db
expose: ["5434"]
`))
assert.NilError(t, err)
configDetails := buildConfigDetails(dict, nil)
_, err = Load(configDetails)
assert.NilError(t, err)
}
func TestInvalidResource(t *testing.T) {
_, err := loadYAML(`
services:
foo:
image: busybox
deploy:
resources:
impossible:
x: 1
`)
assert.ErrorContains(t, err, "Additional property impossible is not allowed")
}
func TestInvalidExternalAndDriverCombination(t *testing.T) {
_, err := loadYAML(`
volumes:
external_volume:
external: true
driver: foobar
`)
assert.ErrorContains(t, err, "conflicting parameters \"external\" and \"driver\" specified for volume")
assert.ErrorContains(t, err, "external_volume")
}
func TestInvalidExternalAndDirverOptsCombination(t *testing.T) {
_, err := loadYAML(`
volumes:
external_volume:
external: true
driver_opts:
beep: boop
`)
assert.ErrorContains(t, err, "conflicting parameters \"external\" and \"driver_opts\" specified for volume")
assert.ErrorContains(t, err, "external_volume")
}
func TestInvalidExternalAndLabelsCombination(t *testing.T) {
_, err := loadYAML(`
volumes:
external_volume:
external: true
labels:
- beep=boop
`)
assert.ErrorContains(t, err, "conflicting parameters \"external\" and \"labels\" specified for volume")
assert.ErrorContains(t, err, "external_volume")
}
func TestLoadVolumeInvalidExternalNameAndNameCombination(t *testing.T) {
_, err := loadYAML(`
volumes:
external_volume:
name: user_specified_name
external:
name: external_name
`)
assert.ErrorContains(t, err, "volume.external.name and volume.name conflict; only use volume.name")
assert.ErrorContains(t, err, "external_volume")
}
func durationPtr(value time.Duration) *types.Duration {
result := types.Duration(value)
return &result
}
func uint64Ptr(value uint64) *uint64 {
return &value
}
func uint32Ptr(value uint32) *uint32 {
return &value
}
func TestFullExample(t *testing.T) {
bytes, err := ioutil.ReadFile("full-example.yml")
assert.NilError(t, err)
homeDir, err := os.UserHomeDir()
assert.NilError(t, err)
env := map[string]string{"HOME": homeDir, "QUX": "qux_from_environment"}
config, err := loadYAMLWithEnv(string(bytes), env)
assert.NilError(t, err)
workingDir, err := os.Getwd()
assert.NilError(t, err)
expectedConfig := fullExampleConfig(workingDir, homeDir)
assert.Check(t, is.DeepEqual(expectedConfig.Services, config.Services))
assert.Check(t, is.DeepEqual(expectedConfig.Networks, config.Networks))
assert.Check(t, is.DeepEqual(expectedConfig.Volumes, config.Volumes))
assert.Check(t, is.DeepEqual(expectedConfig.Secrets, config.Secrets))
assert.Check(t, is.DeepEqual(expectedConfig.Configs, config.Configs))
assert.Check(t, is.DeepEqual(expectedConfig.Extensions, config.Extensions))
}
func TestLoadTmpfsVolume(t *testing.T) {
config, err := loadYAML(`
services:
tmpfs:
image: nginx:latest
volumes:
- type: tmpfs
target: /app
tmpfs:
size: 10000
`)
assert.NilError(t, err)
expected := types.ServiceVolumeConfig{
Target: "/app",
Type: "tmpfs",
Tmpfs: &types.ServiceVolumeTmpfs{
Size: int64(10000),
},
}
assert.Assert(t, is.Len(config.Services, 1))
assert.Check(t, is.Len(config.Services[0].Volumes, 1))
assert.Check(t, is.DeepEqual(expected, config.Services[0].Volumes[0]))
}
func TestLoadTmpfsVolumeAdditionalPropertyNotAllowed(t *testing.T) {
_, err := loadYAML(`
services:
tmpfs:
image: nginx:latest
volumes:
- type: tmpfs
target: /app
foo:
bar: zot
`)
assert.ErrorContains(t, err, "services.tmpfs.volumes.0 Additional property foo is not allowed")
}
func TestLoadBindMountSourceMustNotBeEmpty(t *testing.T) {
_, err := loadYAML(`
services:
tmpfs:
image: nginx:latest
volumes:
- type: bind
target: /app
`)
assert.Error(t, err, `invalid mount config for type "bind": field Source must not be empty`)
}
func TestLoadBindMountSourceIsWindowsAbsolute(t *testing.T) {
tests := []struct {
doc string
yaml string
expected types.ServiceVolumeConfig
}{
{
doc: "Z-drive lowercase",
yaml: `
services:
windows:
image: mcr.microsoft.com/windows/servercore/iis:windowsservercore-ltsc2019
volumes:
- type: bind
source: z:\
target: c:\data
`,
expected: types.ServiceVolumeConfig{Type: "bind", Source: `z:\`, Target: `c:\data`},
},
{
doc: "Z-drive uppercase",
yaml: `
services:
windows:
image: mcr.microsoft.com/windows/servercore/iis:windowsservercore-ltsc2019
volumes:
- type: bind
source: Z:\
target: C:\data
`,
expected: types.ServiceVolumeConfig{Type: "bind", Source: `Z:\`, Target: `C:\data`},
},
{
doc: "Z-drive subdirectory",
yaml: `
services:
windows:
image: mcr.microsoft.com/windows/servercore/iis:windowsservercore-ltsc2019
volumes:
- type: bind
source: Z:\some-dir
target: C:\data
`,
expected: types.ServiceVolumeConfig{Type: "bind", Source: `Z:\some-dir`, Target: `C:\data`},
},
{
doc: "forward-slashes",
yaml: `
services:
app:
image: app:latest
volumes:
- type: bind
source: /z/some-dir
target: /c/data
`,
expected: types.ServiceVolumeConfig{Type: "bind", Source: `/z/some-dir`, Target: `/c/data`},
},
}
for _, tc := range tests {
t.Run(tc.doc, func(t *testing.T) {
config, err := loadYAML(tc.yaml)
assert.NilError(t, err)
assert.Check(t, is.Len(config.Services[0].Volumes, 1))
assert.Check(t, is.DeepEqual(tc.expected, config.Services[0].Volumes[0]))
})
}
}
func TestLoadBindMountWithSource(t *testing.T) {
config, err := loadYAML(`