530 lines
17 KiB
Go
530 lines
17 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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"reflect"
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"strings"
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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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AccessLog struct {
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Disabled bool `yaml:"disabled,omitempty"`
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} `yaml:"accesslog,omitempty"`
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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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Hooks []LogHook `yaml:"hooks,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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IgnoredMediaTypes: []string{"application/octet-stream"},
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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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Net string `yaml:"net,omitempty"`
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Host string `yaml:"host,omitempty"`
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Prefix string `yaml:"prefix,omitempty"`
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Secret string `yaml:"secret,omitempty"`
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RelativeURLs bool `yaml:"relativeurls,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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LetsEncrypt struct {
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CacheFile string `yaml:"cachefile,omitempty"`
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Email string `yaml:"email,omitempty"`
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} `yaml:"letsencrypt,omitempty"`
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} `yaml:"tls,omitempty"`
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Headers http.Header `yaml:"headers,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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HTTP2 struct {
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Disabled bool `yaml:"disabled,omitempty"`
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} `yaml:"http2,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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LetsEncrypt struct {
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CacheFile string `yaml:"cachefile,omitempty"`
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Email string `yaml:"email,omitempty"`
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} `yaml:"letsencrypt,omitempty"`
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}{
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ClientCAs: []string{"/path/to/ca.pem"},
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},
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Headers: http.Header{
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"X-Content-Type-Options": []string{"nosniff"},
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},
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HTTP2: struct {
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Disabled bool `yaml:"disabled,omitempty"`
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}{
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Disabled: false,
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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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ignoredmediatypes:
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- application/octet-stream
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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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headers:
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X-Content-Type-Options: [nosniff]
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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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ignoredmediatypes:
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- application/octet-stream
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http:
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headers:
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X-Content-Type-Options: [nosniff]
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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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suite.expectedConfig.HTTP.Headers = nil
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// Note: this also tests that REGISTRY_STORAGE and
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// REGISTRY_STORAGE_FILESYSTEM_ROOTDIRECTORY can be used together
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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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// 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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// TestParseExtraneousVars validates that environment variables referring to
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// nonexistent variables don't cause side effects.
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func (suite *ConfigSuite) TestParseExtraneousVars(c *C) {
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suite.expectedConfig.Reporting.Bugsnag.Endpoint = "localhost:8080"
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// A valid environment variable
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os.Setenv("REGISTRY_REPORTING_BUGSNAG_ENDPOINT", "localhost:8080")
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// Environment variables which shouldn't set config items
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os.Setenv("registry_REPORTING_NEWRELIC_LICENSEKEY", "NewRelicLicenseKey")
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os.Setenv("REPORTING_NEWRELIC_NAME", "some NewRelic NAME")
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os.Setenv("REGISTRY_DUCKS", "quack")
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os.Setenv("REGISTRY_REPORTING_ASDF", "ghjk")
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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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// TestParseEnvVarImplicitMaps validates that environment variables can set
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// values in maps that don't already exist.
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func (suite *ConfigSuite) TestParseEnvVarImplicitMaps(c *C) {
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readonly := make(map[string]interface{})
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readonly["enabled"] = true
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maintenance := make(map[string]interface{})
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maintenance["readonly"] = readonly
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suite.expectedConfig.Storage["maintenance"] = maintenance
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os.Setenv("REGISTRY_STORAGE_MAINTENANCE_READONLY_ENABLED", "true")
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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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// TestParseEnvWrongTypeMap validates that incorrectly attempting to unmarshal a
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// string over existing map fails.
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func (suite *ConfigSuite) TestParseEnvWrongTypeMap(c *C) {
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os.Setenv("REGISTRY_STORAGE_S3", "somestring")
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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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// TestParseEnvWrongTypeStruct validates that incorrectly attempting to
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// unmarshal a string into a struct fails.
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func (suite *ConfigSuite) TestParseEnvWrongTypeStruct(c *C) {
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os.Setenv("REGISTRY_STORAGE_LOG", "somestring")
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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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// TestParseEnvWrongTypeSlice validates that incorrectly attempting to
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// unmarshal a string into a slice fails.
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func (suite *ConfigSuite) TestParseEnvWrongTypeSlice(c *C) {
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os.Setenv("REGISTRY_LOG_HOOKS", "somestring")
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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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// TestParseEnvMany tests several environment variable overrides.
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// The result is not checked - the goal of this test is to detect panics
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// from misuse of reflection.
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func (suite *ConfigSuite) TestParseEnvMany(c *C) {
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os.Setenv("REGISTRY_VERSION", "0.1")
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os.Setenv("REGISTRY_LOG_LEVEL", "debug")
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os.Setenv("REGISTRY_LOG_FORMATTER", "json")
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os.Setenv("REGISTRY_LOG_HOOKS", "json")
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os.Setenv("REGISTRY_LOG_FIELDS", "abc: xyz")
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os.Setenv("REGISTRY_LOG_HOOKS", "- type: asdf")
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os.Setenv("REGISTRY_LOGLEVEL", "debug")
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os.Setenv("REGISTRY_STORAGE", "s3")
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os.Setenv("REGISTRY_AUTH_PARAMS", "param1: value1")
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os.Setenv("REGISTRY_AUTH_PARAMS_VALUE2", "value2")
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os.Setenv("REGISTRY_AUTH_PARAMS_VALUE2", "value2")
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_, err := Parse(bytes.NewReader([]byte(configYamlV0_1)))
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c.Assert(err, IsNil)
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}
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func checkStructs(c *C, t reflect.Type, structsChecked map[string]struct{}) {
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for t.Kind() == reflect.Ptr || t.Kind() == reflect.Map || t.Kind() == reflect.Slice {
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t = t.Elem()
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}
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if t.Kind() != reflect.Struct {
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return
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}
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if _, present := structsChecked[t.String()]; present {
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// Already checked this type
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return
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}
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structsChecked[t.String()] = struct{}{}
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byUpperCase := make(map[string]int)
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for i := 0; i < t.NumField(); i++ {
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sf := t.Field(i)
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// Check that the yaml tag does not contain an _.
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yamlTag := sf.Tag.Get("yaml")
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if strings.Contains(yamlTag, "_") {
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c.Fatalf("yaml field name includes _ character: %s", yamlTag)
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}
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upper := strings.ToUpper(sf.Name)
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if _, present := byUpperCase[upper]; present {
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c.Fatalf("field name collision in configuration object: %s", sf.Name)
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}
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byUpperCase[upper] = i
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checkStructs(c, sf.Type, structsChecked)
|
|
}
|
|
}
|
|
|
|
// TestValidateConfigStruct makes sure that the config struct has no members
|
|
// with yaml tags that would be ambiguous to the environment variable parser.
|
|
func (suite *ConfigSuite) TestValidateConfigStruct(c *C) {
|
|
structsChecked := make(map[string]struct{})
|
|
checkStructs(c, reflect.TypeOf(Configuration{}), structsChecked)
|
|
}
|
|
|
|
func copyConfig(config Configuration) *Configuration {
|
|
configCopy := new(Configuration)
|
|
|
|
configCopy.Version = MajorMinorVersion(config.Version.Major(), config.Version.Minor())
|
|
configCopy.Loglevel = config.Loglevel
|
|
configCopy.Log = config.Log
|
|
configCopy.Log.Fields = make(map[string]interface{}, len(config.Log.Fields))
|
|
for k, v := range config.Log.Fields {
|
|
configCopy.Log.Fields[k] = v
|
|
}
|
|
|
|
configCopy.Storage = Storage{config.Storage.Type(): Parameters{}}
|
|
for k, v := range config.Storage.Parameters() {
|
|
configCopy.Storage.setParameter(k, v)
|
|
}
|
|
configCopy.Reporting = Reporting{
|
|
Bugsnag: BugsnagReporting{config.Reporting.Bugsnag.APIKey, config.Reporting.Bugsnag.ReleaseStage, config.Reporting.Bugsnag.Endpoint},
|
|
NewRelic: NewRelicReporting{config.Reporting.NewRelic.LicenseKey, config.Reporting.NewRelic.Name, config.Reporting.NewRelic.Verbose},
|
|
}
|
|
|
|
configCopy.Auth = Auth{config.Auth.Type(): Parameters{}}
|
|
for k, v := range config.Auth.Parameters() {
|
|
configCopy.Auth.setParameter(k, v)
|
|
}
|
|
|
|
configCopy.Notifications = Notifications{Endpoints: []Endpoint{}}
|
|
for _, v := range config.Notifications.Endpoints {
|
|
configCopy.Notifications.Endpoints = append(configCopy.Notifications.Endpoints, v)
|
|
}
|
|
|
|
configCopy.HTTP.Headers = make(http.Header)
|
|
for k, v := range config.HTTP.Headers {
|
|
configCopy.HTTP.Headers[k] = v
|
|
}
|
|
|
|
return configCopy
|
|
}
|