369 lines
12 KiB
Go
369 lines
12 KiB
Go
package configuration
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import (
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"bytes"
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"net/http"
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"os"
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"testing"
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. "gopkg.in/check.v1"
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"gopkg.in/yaml.v2"
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)
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// Hook up gocheck into the "go test" runner
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func Test(t *testing.T) { TestingT(t) }
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// configStruct is a canonical example configuration, which should map to configYamlV0_1
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var configStruct = Configuration{
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Version: "0.1",
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Log: struct {
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Level Loglevel `yaml:"level"`
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Formatter string `yaml:"formatter,omitempty"`
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Fields map[string]interface{} `yaml:"fields,omitempty"`
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}{
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Fields: map[string]interface{}{"environment": "test"},
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},
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Loglevel: "info",
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Storage: Storage{
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"s3": Parameters{
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"region": "us-east-1",
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"bucket": "my-bucket",
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"rootdirectory": "/registry",
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"encrypt": true,
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"secure": false,
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"accesskey": "SAMPLEACCESSKEY",
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"secretkey": "SUPERSECRET",
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"host": nil,
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"port": 42,
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},
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},
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Auth: Auth{
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"silly": Parameters{
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"realm": "silly",
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"service": "silly",
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},
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},
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Reporting: Reporting{
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Bugsnag: BugsnagReporting{
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APIKey: "BugsnagApiKey",
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},
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},
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Notifications: Notifications{
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Endpoints: []Endpoint{
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{
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Name: "endpoint-1",
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URL: "http://example.com",
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Headers: http.Header{
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"Authorization": []string{"Bearer <example>"},
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},
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},
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},
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},
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HTTP: struct {
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Addr string `yaml:"addr,omitempty"`
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Prefix string `yaml:"prefix,omitempty"`
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Secret string `yaml:"secret,omitempty"`
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TLS struct {
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Certificate string `yaml:"certificate,omitempty"`
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Key string `yaml:"key,omitempty"`
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ClientCAs []string `yaml:"clientcas,omitempty"`
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} `yaml:"tls,omitempty"`
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Debug struct {
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Addr string `yaml:"addr,omitempty"`
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} `yaml:"debug,omitempty"`
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}{
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TLS: struct {
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Certificate string `yaml:"certificate,omitempty"`
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Key string `yaml:"key,omitempty"`
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ClientCAs []string `yaml:"clientcas,omitempty"`
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}{
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ClientCAs: []string{"/path/to/ca.pem"},
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},
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},
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}
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// configYamlV0_1 is a Version 0.1 yaml document representing configStruct
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var configYamlV0_1 = `
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version: 0.1
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log:
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fields:
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environment: test
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loglevel: info
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storage:
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s3:
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region: us-east-1
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bucket: my-bucket
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rootdirectory: /registry
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encrypt: true
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secure: false
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accesskey: SAMPLEACCESSKEY
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secretkey: SUPERSECRET
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host: ~
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port: 42
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auth:
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silly:
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realm: silly
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service: silly
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notifications:
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endpoints:
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- name: endpoint-1
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url: http://example.com
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headers:
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Authorization: [Bearer <example>]
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reporting:
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bugsnag:
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apikey: BugsnagApiKey
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http:
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clientcas:
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- /path/to/ca.pem
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`
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// inmemoryConfigYamlV0_1 is a Version 0.1 yaml document specifying an inmemory
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// storage driver with no parameters
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var inmemoryConfigYamlV0_1 = `
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version: 0.1
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loglevel: info
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storage: inmemory
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auth:
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silly:
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realm: silly
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service: silly
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notifications:
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endpoints:
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- name: endpoint-1
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url: http://example.com
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headers:
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Authorization: [Bearer <example>]
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`
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type ConfigSuite struct {
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expectedConfig *Configuration
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}
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var _ = Suite(new(ConfigSuite))
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func (suite *ConfigSuite) SetUpTest(c *C) {
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os.Clearenv()
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suite.expectedConfig = copyConfig(configStruct)
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}
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// TestMarshalRoundtrip validates that configStruct can be marshaled and
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// unmarshaled without changing any parameters
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func (suite *ConfigSuite) TestMarshalRoundtrip(c *C) {
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configBytes, err := yaml.Marshal(suite.expectedConfig)
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c.Assert(err, IsNil)
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config, err := Parse(bytes.NewReader(configBytes))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseSimple validates that configYamlV0_1 can be parsed into a struct
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// matching configStruct
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func (suite *ConfigSuite) TestParseSimple(c *C) {
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseInmemory validates that configuration yaml with storage provided as
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// a string can be parsed into a Configuration struct with no storage parameters
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func (suite *ConfigSuite) TestParseInmemory(c *C) {
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suite.expectedConfig.Storage = Storage{"inmemory": Parameters{}}
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suite.expectedConfig.Reporting = Reporting{}
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suite.expectedConfig.Log.Fields = nil
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config, err := Parse(bytes.NewReader([]byte(inmemoryConfigYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseIncomplete validates that an incomplete yaml configuration cannot
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// be parsed without providing environment variables to fill in the missing
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// components.
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func (suite *ConfigSuite) TestParseIncomplete(c *C) {
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incompleteConfigYaml := "version: 0.1"
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_, err := Parse(bytes.NewReader([]byte(incompleteConfigYaml)))
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c.Assert(err, NotNil)
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suite.expectedConfig.Log.Fields = nil
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suite.expectedConfig.Storage = Storage{"filesystem": Parameters{"rootdirectory": "/tmp/testroot"}}
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suite.expectedConfig.Auth = Auth{"silly": Parameters{"realm": "silly"}}
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suite.expectedConfig.Reporting = Reporting{}
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suite.expectedConfig.Notifications = Notifications{}
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os.Setenv("REGISTRY_STORAGE", "filesystem")
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os.Setenv("REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY", "/tmp/testroot")
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os.Setenv("REGISTRY_AUTH", "silly")
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os.Setenv("REGISTRY_AUTH_SILLY_REALM", "silly")
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config, err := Parse(bytes.NewReader([]byte(incompleteConfigYaml)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithSameEnvStorage validates that providing environment variables
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// that match the given storage type will only include environment-defined
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// parameters and remove yaml-defined parameters
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func (suite *ConfigSuite) TestParseWithSameEnvStorage(c *C) {
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suite.expectedConfig.Storage = Storage{"s3": Parameters{"region": "us-east-1"}}
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os.Setenv("REGISTRY_STORAGE", "s3")
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os.Setenv("REGISTRY_STORAGE_S3_REGION", "us-east-1")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithDifferentEnvStorageParams validates that providing environment variables that change
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// and add to the given storage parameters will change and add parameters to the parsed
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// Configuration struct
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func (suite *ConfigSuite) TestParseWithDifferentEnvStorageParams(c *C) {
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suite.expectedConfig.Storage.setParameter("region", "us-west-1")
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suite.expectedConfig.Storage.setParameter("secure", true)
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suite.expectedConfig.Storage.setParameter("newparam", "some Value")
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os.Setenv("REGISTRY_STORAGE_S3_REGION", "us-west-1")
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os.Setenv("REGISTRY_STORAGE_S3_SECURE", "true")
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os.Setenv("REGISTRY_STORAGE_S3_NEWPARAM", "some Value")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithDifferentEnvStorageType validates that providing an environment variable that
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// changes the storage type will be reflected in the parsed Configuration struct
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func (suite *ConfigSuite) TestParseWithDifferentEnvStorageType(c *C) {
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suite.expectedConfig.Storage = Storage{"inmemory": Parameters{}}
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os.Setenv("REGISTRY_STORAGE", "inmemory")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithExtraneousEnvStorageParams validates that environment variables
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// that change parameters out of the scope of the specified storage type are
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// ignored.
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func (suite *ConfigSuite) TestParseWithExtraneousEnvStorageParams(c *C) {
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os.Setenv("REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY", "/tmp/testroot")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithDifferentEnvStorageTypeAndParams validates that providing an environment variable
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// that changes the storage type will be reflected in the parsed Configuration struct and that
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// environment storage parameters will also be included
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func (suite *ConfigSuite) TestParseWithDifferentEnvStorageTypeAndParams(c *C) {
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suite.expectedConfig.Storage = Storage{"filesystem": Parameters{}}
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suite.expectedConfig.Storage.setParameter("rootdirectory", "/tmp/testroot")
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os.Setenv("REGISTRY_STORAGE", "filesystem")
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os.Setenv("REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY", "/tmp/testroot")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithSameEnvLoglevel validates that providing an environment variable defining the log
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// level to the same as the one provided in the yaml will not change the parsed Configuration struct
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func (suite *ConfigSuite) TestParseWithSameEnvLoglevel(c *C) {
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os.Setenv("REGISTRY_LOGLEVEL", "info")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseWithDifferentEnvLoglevel validates that providing an environment variable defining the
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// log level will override the value provided in the yaml document
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func (suite *ConfigSuite) TestParseWithDifferentEnvLoglevel(c *C) {
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suite.expectedConfig.Loglevel = "error"
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os.Setenv("REGISTRY_LOGLEVEL", "error")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseInvalidLoglevel validates that the parser will fail to parse a
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// configuration if the loglevel is malformed
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func (suite *ConfigSuite) TestParseInvalidLoglevel(c *C) {
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invalidConfigYaml := "version: 0.1\nloglevel: derp\nstorage: inmemory"
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_, err := Parse(bytes.NewReader([]byte(invalidConfigYaml)))
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c.Assert(err, NotNil)
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os.Setenv("REGISTRY_LOGLEVEL", "derp")
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_, err = Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, NotNil)
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}
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// TestParseWithDifferentEnvReporting validates that environment variables
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// properly override reporting parameters
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func (suite *ConfigSuite) TestParseWithDifferentEnvReporting(c *C) {
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suite.expectedConfig.Reporting.Bugsnag.APIKey = "anotherBugsnagApiKey"
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suite.expectedConfig.Reporting.Bugsnag.Endpoint = "localhost:8080"
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suite.expectedConfig.Reporting.NewRelic.LicenseKey = "NewRelicLicenseKey"
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suite.expectedConfig.Reporting.NewRelic.Name = "some NewRelic NAME"
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os.Setenv("REGISTRY_REPORTING_BUGSNAG_APIKEY", "anotherBugsnagApiKey")
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os.Setenv("REGISTRY_REPORTING_BUGSNAG_ENDPOINT", "localhost:8080")
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os.Setenv("REGISTRY_REPORTING_NEWRELIC_LICENSEKEY", "NewRelicLicenseKey")
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os.Setenv("REGISTRY_REPORTING_NEWRELIC_NAME", "some NewRelic NAME")
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config, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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c.Assert(config, DeepEquals, suite.expectedConfig)
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}
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// TestParseInvalidVersion validates that the parser will fail to parse a newer configuration
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// version than the CurrentVersion
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func (suite *ConfigSuite) TestParseInvalidVersion(c *C) {
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suite.expectedConfig.Version = MajorMinorVersion(CurrentVersion.Major(), CurrentVersion.Minor()+1)
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configBytes, err := yaml.Marshal(suite.expectedConfig)
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c.Assert(err, IsNil)
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_, err = Parse(bytes.NewReader(configBytes))
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c.Assert(err, NotNil)
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}
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func copyConfig(config Configuration) *Configuration {
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configCopy := new(Configuration)
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configCopy.Version = MajorMinorVersion(config.Version.Major(), config.Version.Minor())
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configCopy.Loglevel = config.Loglevel
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configCopy.Log = config.Log
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configCopy.Log.Fields = make(map[string]interface{}, len(config.Log.Fields))
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for k, v := range config.Log.Fields {
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configCopy.Log.Fields[k] = v
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}
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configCopy.Storage = Storage{config.Storage.Type(): Parameters{}}
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for k, v := range config.Storage.Parameters() {
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configCopy.Storage.setParameter(k, v)
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}
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configCopy.Reporting = Reporting{
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Bugsnag: BugsnagReporting{config.Reporting.Bugsnag.APIKey, config.Reporting.Bugsnag.ReleaseStage, config.Reporting.Bugsnag.Endpoint},
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NewRelic: NewRelicReporting{config.Reporting.NewRelic.LicenseKey, config.Reporting.NewRelic.Name, config.Reporting.NewRelic.Verbose},
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}
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configCopy.Auth = Auth{config.Auth.Type(): Parameters{}}
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for k, v := range config.Auth.Parameters() {
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configCopy.Auth.setParameter(k, v)
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}
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configCopy.Notifications = Notifications{Endpoints: []Endpoint{}}
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for _, v := range config.Notifications.Endpoints {
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configCopy.Notifications.Endpoints = append(configCopy.Notifications.Endpoints, v)
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}
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return configCopy
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}
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