Feature/remove service config tnz 64710

src/github.com/cloudfoundry-incubator/cf-mysql-bootstrap/config/config.go

@@ -2,11 +2,13 @@ package config
 
 import (
 	"flag"
+	"fmt"
+	"os"
 
 	"code.cloudfoundry.org/lager/v3"
 	"code.cloudfoundry.org/lager/v3/lagerflags"
-	"github.com/pivotal-cf-experimental/service-config"
 	"gopkg.in/validator.v2"
+	"gopkg.in/yaml.v3"
 )
 
 type Config struct {
@@ -30,37 +32,76 @@ type BackendTLS struct {
 	InsecureSkipVerify bool   `yaml:"InsecureSkipVerify"`
 }
 
-func defaultConfig() *Config {
-	defaultConfig := Config{
+func defaultConfig() Config {
+	return Config{
 		ShutDownMysql:             "stop_mysql",
 		MysqlStatus:               "mysql_status",
 		GetSeqNumber:              "sequence_number",
 		StartMysqlInJoinMode:      "start_mysql_join",
 		StartMysqlInBootstrapMode: "start_mysql_bootstrap",
 	}
-	return &defaultConfig
 }
 
 func NewConfig(osArgs []string) (*Config, error) {
 	var rootConfig Config
 
 	binaryName := osArgs[0]
 	configurationOptions := osArgs[1:]
-	serviceConfig := service_config.New()
+
+	// Define command line flags
 	flags := flag.NewFlagSet(binaryName, flag.ExitOnError)
+	var configData = flags.String("config", "", "json encoded configuration string")
+	var configPath = flags.String("configPath", "", "path to configuration file with json encoded content")
 
 	lagerflags.AddFlags(flags)
-
-	serviceConfig.AddFlags(flags)
-	serviceConfig.AddDefaults(defaultConfig())
 	flags.Parse(configurationOptions)
 
-	err := serviceConfig.Read(&rootConfig)
+	// Start with defaults
+	rootConfig = defaultConfig()
+
+	// Load configuration from command line, file, or environment
+	err := loadConfig(&rootConfig, *configData, *configPath)
+	if err != nil {
+		return nil, err
+	}
 
 	rootConfig.Logger, _ = lagerflags.NewFromConfig(binaryName, lagerflags.ConfigFromFlags())
-	return &rootConfig, err
+	return &rootConfig, nil
 }
 
 func (c Config) Validate() error {
 	return validator.Validate(c)
 }
+
+// Load configuration from sources in order of precedence:
+// command line data "-config" or file "-configPath", environment variables
+// for data CONFIG or file CONFIG_PATH.
+func loadConfig(config *Config, configData, configPath string) error {
+	var yamlData []byte
+	var err error
+
+	if configData != "" {
+		yamlData = []byte(configData)
+	} else if configPath != "" {
+		yamlData, err = os.ReadFile(configPath)
+		if err != nil {
+			return fmt.Errorf("reading config file %s: %w", configPath, err)
+		}
+	} else if envConfig := os.Getenv("CONFIG"); envConfig != "" {
+		yamlData = []byte(envConfig)
+	} else if envConfigPath := os.Getenv("CONFIG_PATH"); envConfigPath != "" {
+		yamlData, err = os.ReadFile(envConfigPath)
+		if err != nil {
+			return fmt.Errorf("reading config file from CONFIG_PATH %s: %w", envConfigPath, err)
+		}
+	} else {
+		return fmt.Errorf("no configuration provided: use -config, -configPath, CONFIG, or CONFIG_PATH")
+	}
+
+	// Parse YAML
+	if err := yaml.Unmarshal(yamlData, config); err != nil {
+		return fmt.Errorf("parsing YAML config: %w", err)
+	}
+
+	return nil
+}

src/github.com/cloudfoundry-incubator/cf-mysql-bootstrap/config/config_test.go

@@ -4,7 +4,6 @@ import (
 	"fmt"
 
 	. "github.com/cloudfoundry-incubator/cf-mysql-bootstrap/config"
-	"github.com/pivotal-cf-experimental/service-config/test_helpers"
 
 	. "github.com/onsi/ginkgo/v2"
 	. "github.com/onsi/gomega"
@@ -56,23 +55,31 @@ var _ = Describe("Config", func() {
 		})
 
 		It("returns an error if HealthcheckURLs is blank", func() {
-			err := test_helpers.IsRequiredField(rootConfig, "HealthcheckURLs")
-			Expect(err).ToNot(HaveOccurred())
+			rootConfig.HealthcheckURLs = []string{}
+			err := rootConfig.Validate()
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("HealthcheckURLs"))
 		})
 
 		It("returns an error if Username is blank", func() {
-			err := test_helpers.IsRequiredField(rootConfig, "Username")
-			Expect(err).ToNot(HaveOccurred())
+			rootConfig.Username = ""
+			err := rootConfig.Validate()
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("Username"))
 		})
 
 		It("returns an error if Password is blank", func() {
-			err := test_helpers.IsRequiredField(rootConfig, "Password")
-			Expect(err).ToNot(HaveOccurred())
+			rootConfig.Password = ""
+			err := rootConfig.Validate()
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("Password"))
 		})
 
 		It("returns an error if RepairMode is blank", func() {
-			err := test_helpers.IsRequiredField(rootConfig, "RepairMode")
-			Expect(err).ToNot(HaveOccurred())
+			rootConfig.RepairMode = ""
+			err := rootConfig.Validate()
+			Expect(err).To(HaveOccurred())
+			Expect(err.Error()).To(ContainSubstring("RepairMode"))
 		})
 
 		It("returns an error if RepairMode is invalid", func() {
@@ -98,7 +105,7 @@ var _ = Describe("Config", func() {
 					"Enabled": true,
 					"ServerName": "backendTlsServerName",
 					"CA": "backendTlsCA",
-					"InsecureSkipVerify": false,
+					"InsecureSkipVerify": false
 				}
 			}`
 			})

src/github.com/cloudfoundry-incubator/cf-mysql-bootstrap/go.mod

@@ -7,19 +7,16 @@ require (
 	github.com/maxbrunsfeld/counterfeiter/v6 v6.12.1
 	github.com/onsi/ginkgo/v2 v2.27.3
 	github.com/onsi/gomega v1.38.3
-	github.com/pivotal-cf-experimental/service-config v0.0.0-20160129003516-b1dc94de6ada
 	gopkg.in/validator.v2 v2.0.1
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
 	github.com/Masterminds/semver/v3 v3.4.0 // indirect
-	github.com/fsnotify/fsnotify v1.5.1 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/pprof v0.0.0-20251213031049-b05bdaca462f // indirect
-	github.com/imdario/mergo v0.3.16 // indirect
-	github.com/onsi/ginkgo v1.16.5 // indirect
 	github.com/openzipkin/zipkin-go v0.4.3 // indirect
 	go.yaml.in/yaml/v3 v3.0.4 // indirect
 	golang.org/x/mod v0.31.0 // indirect
@@ -28,7 +25,6 @@ require (
 	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/text v0.32.0 // indirect
 	golang.org/x/tools v0.40.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
 )
 
 exclude golang.org/x/tools v0.38.0

src/github.com/cloudfoundry-incubator/cf-mysql-bootstrap/go.sum

@@ -2,13 +2,8 @@ code.cloudfoundry.org/lager/v3 v3.56.0 h1:AKQhLfpawtrZQuTPl1T4h3TdKkw2D5XOKzgctz
 code.cloudfoundry.org/lager/v3 v3.56.0/go.mod h1:h6q82BwjD8XC550znYVhmbuYitb+E6F8WhxXyGxVzFU=
 github.com/Masterminds/semver/v3 v3.4.0 h1:Zog+i5UMtVoCU8oKka5P7i9q9HgrJeGzI9SA1Xbatp0=
 github.com/Masterminds/semver/v3 v3.4.0/go.mod h1:4V+yj/TJE1HU9XfppCwVMZq3I84lprf4nC11bSS5beM=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
-github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
-github.com/fsnotify/fsnotify v1.5.1 h1:mZcQUHVQUQWoPXXtuf9yuEXKudkV2sx1E06UadKWpgI=
-github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
 github.com/gkampitakis/ciinfo v0.3.2 h1:JcuOPk8ZU7nZQjdUhctuhQofk7BGHuIy0c9Ez8BNhXs=
 github.com/gkampitakis/ciinfo v0.3.2/go.mod h1:1NIwaOcFChN4fa/B0hEBdAb6npDlFL8Bwx4dfRLRqAo=
 github.com/gkampitakis/go-diff v1.3.2 h1:Qyn0J9XJSDTgnsgHRdz9Zp24RaJeKMUHg2+PDZZdC4M=
@@ -17,28 +12,14 @@ github.com/gkampitakis/go-snaps v0.5.15 h1:amyJrvM1D33cPHwVrjo9jQxX8g/7E2wYdZ+01
 github.com/gkampitakis/go-snaps v0.5.15/go.mod h1:HNpx/9GoKisdhw9AFOBT1N7DBs9DiHo/hGheFGBZ+mc=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
-github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0/go.mod h1:fyg7847qk6SyHyPtNmDHnmrv/HOrqktSC+C9fM+CJOE=
 github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
 github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/goccy/go-yaml v1.18.0 h1:8W7wMFS12Pcas7KU+VVkaiCng+kG8QiFeFwzFb+rwuw=
 github.com/goccy/go-yaml v1.18.0/go.mod h1:XBurs7gK8ATbW4ZPGKgcbrY1Br56PdM69F7LkFRi1kA=
-github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
-github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
-github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
-github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
-github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
-github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/pprof v0.0.0-20251213031049-b05bdaca462f h1:HU1RgM6NALf/KW9HEY6zry3ADbDKcmpQ+hJedoNGQYQ=
 github.com/google/pprof v0.0.0-20251213031049-b05bdaca462f/go.mod h1:67FPmZWbr+KDT/VlpWtw6sO9XSjpJmLuHpoLmWiTGgY=
-github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/imdario/mergo v0.3.16 h1:wwQJbIsHYGMUyLSPrEq1CT16AhnhNJQ51+4fdHUnCl4=
-github.com/imdario/mergo v0.3.16/go.mod h1:WBLT9ZmE3lPoWsEzCh9LPo3TiwVN+ZKEjmz+hD27ysY=
 github.com/joshdk/go-junit v1.0.0 h1:S86cUKIdwBHWwA6xCmFlf3RTLfVXYQfvanM5Uh+K6GE=
 github.com/joshdk/go-junit v1.0.0/go.mod h1:TiiV0PqkaNfFXjEiyjWM3XXrhVyCa1K4Zfga6W52ung=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -51,31 +32,18 @@ github.com/maxbrunsfeld/counterfeiter/v6 v6.12.1 h1:D4O2wLxB384TS3ohBJMfolnxb4qG
 github.com/maxbrunsfeld/counterfeiter/v6 v6.12.1/go.mod h1:RuJdxo0oI6dClIaMzdl3hewq3a065RH65dofJP03h8I=
 github.com/mfridman/tparse v0.18.0 h1:wh6dzOKaIwkUGyKgOntDW4liXSo37qg5AXbIhkMV3vE=
 github.com/mfridman/tparse v0.18.0/go.mod h1:gEvqZTuCgEhPbYk/2lS3Kcxg1GmTxxU7kTC8DvP0i/A=
-github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
-github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
-github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
-github.com/onsi/ginkgo v1.6.0/go.mod h1:lLunBs/Ym6LB5Z9jYTR76FiuTmxDTDusOGeTQH+WWjE=
-github.com/onsi/ginkgo v1.12.1/go.mod h1:zj2OWP4+oCPe1qIXoGWkgMRwljMUYCdkwsT2108oapk=
-github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
-github.com/onsi/ginkgo v1.16.5/go.mod h1:+E8gABHa3K6zRBolWtd+ROzc/U5bkGt0FwiG042wbpU=
 github.com/onsi/ginkgo/v2 v2.27.3 h1:ICsZJ8JoYafeXFFlFAG75a7CxMsJHwgKwtO+82SE9L8=
 github.com/onsi/ginkgo/v2 v2.27.3/go.mod h1:ArE1D/XhNXBXCBkKOLkbsb2c81dQHCRcF5zwn/ykDRo=
-github.com/onsi/gomega v1.7.1/go.mod h1:XdKZgCCFLUoM/7CFJVPcG8C1xQ1AJ0vpAezJrB7JYyY=
-github.com/onsi/gomega v1.10.1/go.mod h1:iN09h71vgCQne3DLsj+A5owkum+a2tYe+TOCB1ybHNo=
 github.com/onsi/gomega v1.38.3 h1:eTX+W6dobAYfFeGC2PV6RwXRu/MyT+cQguijutvkpSM=
 github.com/onsi/gomega v1.38.3/go.mod h1:ZCU1pkQcXDO5Sl9/VVEGlDyp+zm0m1cmeG5TOzLgdh4=
 github.com/openzipkin/zipkin-go v0.4.3 h1:9EGwpqkgnwdEIJ+Od7QVSEIH+ocmm5nPat0G7sjsSdg=
 github.com/openzipkin/zipkin-go v0.4.3/go.mod h1:M9wCJZFWCo2RiY+o1eBCEMe0Dp2S5LDHcMZmk3RmK7c=
-github.com/pivotal-cf-experimental/service-config v0.0.0-20160129003516-b1dc94de6ada h1:E7mEfdwY6BDQwNoUdHD5074b9XysrdfOa56rajUB7zw=
-github.com/pivotal-cf-experimental/service-config v0.0.0-20160129003516-b1dc94de6ada/go.mod h1:nE/4g0m8vCfN5dSR9yXvndJhuLPOMHUY1YrQ7yTYGto=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rogpeppe/go-internal v1.13.1 h1:KvO1DLK/DRN07sQ1LQKScxyZJuNnedQ5/wKSR38lUII=
 github.com/rogpeppe/go-internal v1.13.1/go.mod h1:uMEvuHeurkdAXX61udpOXGD/AzZDWNMNyH2VO9fmH0o=
 github.com/sclevine/spec v1.4.0 h1:z/Q9idDcay5m5irkZ28M7PtQM4aOISzOpj4bUPkDee8=
 github.com/sclevine/spec v1.4.0/go.mod h1:LvpgJaFyvQzRvc1kaDs0bulYwzC70PbiYjC4QnFHkOM=
-github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
 github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
@@ -86,72 +54,26 @@ github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
 github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
 github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
 github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
-github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
-golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.31.0 h1:HaW9xtz0+kOcWKwli0ZXy79Ix+UW/vOfmWI5QVd2tgI=
 golang.org/x/mod v0.31.0/go.mod h1:43JraMp9cGx1Rx3AqioxrbrhNsLl2l/iNAvuBkrezpg=
-golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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