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Signed-off-by: Pavel Okhlopkov <[email protected]>
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Pavel Okhlopkov
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Dec 5, 2024
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,226 @@ | ||
| package app | ||
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| import ( | ||
| "fmt" | ||
| "time" | ||
|
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| env "github.com/caarlos0/env/v11" | ||
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| "github.com/deckhouse/deckhouse/pkg/log" | ||
| ) | ||
|
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| type appConfig struct { | ||
| HooksDir string `env:"HOOKS_DIR" envDefault:"hooks"` | ||
| TmpDir string `env:"TMP_DIR" envDefault:"/tmp/shell-operator"` | ||
| ListenAddress string `env:"LISTEN_ADDRESS" envDefault:"0.0.0.0"` | ||
| ListenPort string `env:"LISTEN_PORT" envDefault:"9115"` | ||
| PrometheusMetricsPrefix string `env:"PROMETHEUS_METRICS_PREFIX" envDefault:"shell_operator_"` | ||
| // unused? | ||
| HooksMetricsListenPort string `env:"HOOK_METRICS_LISTEN_PORT" envDefault:"9115"` | ||
| Namespace string `env:"Namespace"` | ||
| } | ||
|
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| func newAppConfig() *appConfig { | ||
| return &appConfig{} | ||
| } | ||
|
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| type debugConfig struct { | ||
| HTTPServerAddress string `env:"HTTP_SERVER_ADDR"` | ||
| KeepTemporaryFiles string `env:"KEEP_TMP_FILES" envDefault:"no"` | ||
| KubernetesAPI bool `env:"KUBERNETES_API" envDefault:"false"` | ||
| UnixSocket string `env:"UNIX_SOCKET" envDefault:"/var/run/shell-operator/debug.socket"` | ||
| } | ||
|
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| func newDebugConfig() *debugConfig { | ||
| return &debugConfig{} | ||
| } | ||
|
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| type jqConfig struct { | ||
| LibraryPath string `env:"LIBRARY_PATH"` | ||
| } | ||
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| func newJQConfig() *jqConfig { | ||
| return &jqConfig{} | ||
| } | ||
|
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| type kubeConfig struct { | ||
| // Settings for Kubernetes connection. | ||
| ContextName string `env:"CONTEXT"` | ||
| ConfigPath string `env:"CONFIG"` | ||
| ServerAddress string `env:"SERVER"` | ||
| // Rate limit settings for 'main' kube client | ||
| ClientQPS float32 `env:"CLIENT_QPS" envDefault:"5"` | ||
| ClientBurst int `env:"CLIENT_BURST" envDefault:"10"` | ||
| } | ||
|
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| func newKubeConfig() *kubeConfig { | ||
| return &kubeConfig{} | ||
| } | ||
|
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| type objectPatcherConfig struct { | ||
| // Settings for 'object_patcher' kube client | ||
| KubeClientQPS float32 `env:"KUBE_CLIENT_QPS" envDefault:"4"` | ||
| KubeClisntBurst int `env:"KUBE_CLIENT_BURST" envDefault:"10"` | ||
| KubeClientTimeout time.Duration `env:"KUBE_CLIENT_TIMEOUT" envDefault:"10s"` | ||
| } | ||
|
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| func newObjectPatcherConfig() *objectPatcherConfig { | ||
| return &objectPatcherConfig{} | ||
| } | ||
|
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| type validatingWebhookConfig struct { | ||
| ConfigurationName string `env:"CONFIGURATION_NAME" envDefault:"shell-operator-hooks"` | ||
| ServiceName string `env:"SERVICE_NAME" envDefault:"shell-operator-validating-svc"` | ||
| ServerCert string `env:"SERVER_CERT" envDefault:"/validating-certs/tls.crt"` | ||
| ServerKey string `env:"SERVER_KEY" envDefault:"/validating-certs/tls.key"` | ||
| CA string `env:"CA" envDefault:"/validating-certs/ca.crt"` | ||
| // check separator? | ||
| ClientCA []string `env:"CLIENT_CA" envSeparator:","` | ||
| // enum "Fail" || "Ignore" | ||
| FailurePolicy string `env:"FAILURE_POLICY" envDefault:"Fail"` | ||
| ListenPort string `env:"LISTEN_PORT" envDefault:"9680"` | ||
| ListenAddress string `env:"LISTEN_ADDRESS" envDefault:"0.0.0.0"` | ||
| } | ||
|
|
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| func newValidatingWebhookConfig() *validatingWebhookConfig { | ||
| return &validatingWebhookConfig{} | ||
| } | ||
|
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| type conversionWebhookConfig struct { | ||
| ServiceName string `env:"SERVICE_NAME" envDefault:"shell-operator-conversion-svc"` | ||
| ServerCert string `env:"SERVER_CERT" envDefault:"/conversion-certs/tls.crt"` | ||
| ServerKey string `env:"SERVER_KEY" envDefault:"/conversion-certs/tls.key"` | ||
| CA string `env:"CA" envDefault:"/conversion-certs/ca.crt"` | ||
| // check separator? | ||
| ClientCA []string `env:"CLIENT_CA" envSeparator:","` | ||
| ListenPort string `env:"LISTEN_PORT" envDefault:"9681"` | ||
| ListenAddress string `env:"LISTEN_ADDRESS" envDefault:"0.0.0.0"` | ||
| } | ||
|
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| func newConversionWebhookConfig() *conversionWebhookConfig { | ||
| return &conversionWebhookConfig{} | ||
| } | ||
|
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| type logConfig struct { | ||
| Level string `env:"LEVEL" envDefault:"info"` | ||
| Type string `env:"TYPE" envDefault:"text"` | ||
| NoTime bool `env:"NO_TIME" envDefault:"false"` | ||
| ProxyHookJson bool `env:"PROXY_HOOK_JSON" envDefault:"false"` | ||
| } | ||
|
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| func newLogConfig() *logConfig { | ||
| return &logConfig{} | ||
| } | ||
|
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| type Config struct { | ||
| AppConfig *appConfig `envPrefix:"SHELL_OPERATOR_"` | ||
| JQConfig *jqConfig `envPrefix:"JQ_"` | ||
| KubeConfig *kubeConfig `envPrefix:"KUBE_"` | ||
| ObjectPatcherConfig *objectPatcherConfig `envPrefix:"OBJECT_PATCHER_"` | ||
| ValidatingWebhookConfig *validatingWebhookConfig `envPrefix:"VALIDATING_WEBHOOK_"` | ||
| ConversionWebhookConfig *conversionWebhookConfig `envPrefix:"CONVERSION_WEBHOOK_"` | ||
|
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| DebugConfig *debugConfig `envPrefix:"DEBUG_"` | ||
|
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| LogConfig *logConfig `envPrefix:"LOG_"` | ||
| LogLevel log.Level `env:"-"` | ||
| } | ||
|
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| func NewConfig() *Config { | ||
| return &Config{ | ||
| AppConfig: newAppConfig(), | ||
| JQConfig: newJQConfig(), | ||
| KubeConfig: newKubeConfig(), | ||
| ObjectPatcherConfig: newObjectPatcherConfig(), | ||
| ValidatingWebhookConfig: newValidatingWebhookConfig(), | ||
| ConversionWebhookConfig: newConversionWebhookConfig(), | ||
| DebugConfig: newDebugConfig(), | ||
| LogConfig: newLogConfig(), | ||
| } | ||
| } | ||
|
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| func (cfg *Config) Parse() error { | ||
| opts := env.Options{ | ||
| Prefix: "", | ||
| } | ||
|
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| err := env.ParseWithOptions(cfg, opts) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to parse config: %w", err) | ||
| } | ||
|
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| cfg.LogLevel = log.LogLevelFromStr(cfg.LogConfig.Level) | ||
|
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| return nil | ||
| } | ||
|
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| func (cfg *Config) SetupGlobalVars() { | ||
| setIfNotEmpty(&HooksDir, cfg.AppConfig.HooksDir) | ||
| setIfNotEmpty(&TempDir, cfg.AppConfig.TmpDir) | ||
| setIfNotEmpty(&ListenAddress, cfg.AppConfig.ListenAddress) | ||
| setIfNotEmpty(&ListenPort, cfg.AppConfig.ListenPort) | ||
| setIfNotEmpty(&PrometheusMetricsPrefix, cfg.AppConfig.PrometheusMetricsPrefix) | ||
| setIfNotEmpty(&Namespace, cfg.AppConfig.Namespace) | ||
|
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| setIfNotEmpty(&DebugHttpServerAddr, cfg.DebugConfig.HTTPServerAddress) | ||
| setIfNotEmpty(&DebugKeepTmpFilesVar, cfg.DebugConfig.KeepTemporaryFiles) | ||
| setIfNotEmpty(&DebugKeepTmpFiles, cfg.DebugConfig.KeepTemporaryFiles == "yes") | ||
| setIfNotEmpty(&DebugKubernetesAPI, cfg.DebugConfig.KubernetesAPI) | ||
| setIfNotEmpty(&DebugUnixSocket, cfg.DebugConfig.UnixSocket) | ||
|
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| fmt.Println("LOL UNIX SOCKET") | ||
| fmt.Println(DebugUnixSocket) | ||
| fmt.Println("LOL UNIX SOCKET FROM CFG") | ||
| fmt.Println(cfg.DebugConfig.UnixSocket) | ||
|
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| setIfNotEmpty(&JqLibraryPath, cfg.JQConfig.LibraryPath) | ||
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| setIfNotEmpty(&KubeContext, cfg.KubeConfig.ContextName) | ||
| setIfNotEmpty(&KubeConfig, cfg.KubeConfig.ConfigPath) | ||
| setIfNotEmpty(&KubeServer, cfg.KubeConfig.ServerAddress) | ||
| setIfNotEmpty(&KubeClientQps, cfg.KubeConfig.ClientQPS) | ||
| setIfNotEmpty(&KubeClientBurst, cfg.KubeConfig.ClientBurst) | ||
|
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| setIfNotEmpty(&ObjectPatcherKubeClientQps, cfg.ObjectPatcherConfig.KubeClientQPS) | ||
| setIfNotEmpty(&ObjectPatcherKubeClientBurst, cfg.ObjectPatcherConfig.KubeClisntBurst) | ||
| setIfNotEmpty(&ObjectPatcherKubeClientTimeout, cfg.ObjectPatcherConfig.KubeClientTimeout) | ||
|
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| setIfNotEmpty(&LogLevel, cfg.LogConfig.Level) | ||
| setIfNotEmpty(&LogNoTime, cfg.LogConfig.NoTime) | ||
| setIfNotEmpty(&LogType, cfg.LogConfig.Type) | ||
| setIfNotEmpty(&LogProxyHookJSON, cfg.LogConfig.ProxyHookJson) | ||
|
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| setIfNotEmpty(&ValidatingWebhookSettings.ConfigurationName, cfg.ValidatingWebhookConfig.ConfigurationName) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.ServiceName, cfg.ValidatingWebhookConfig.ServiceName) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.ServerCertPath, cfg.ValidatingWebhookConfig.ServerCert) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.ServerKeyPath, cfg.ValidatingWebhookConfig.ServerKey) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.CAPath, cfg.ValidatingWebhookConfig.CA) | ||
| setSliceIfNotEmpty(&ValidatingWebhookSettings.ClientCAPaths, cfg.ValidatingWebhookConfig.ClientCA) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.DefaultFailurePolicy, cfg.ValidatingWebhookConfig.FailurePolicy) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.ListenPort, cfg.ValidatingWebhookConfig.ListenPort) | ||
| setIfNotEmpty(&ValidatingWebhookSettings.ListenAddr, cfg.ValidatingWebhookConfig.ListenAddress) | ||
|
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| setIfNotEmpty(&ConversionWebhookSettings.ServiceName, cfg.ValidatingWebhookConfig.ServiceName) | ||
| setIfNotEmpty(&ConversionWebhookSettings.ServerCertPath, cfg.ValidatingWebhookConfig.ServerCert) | ||
| setIfNotEmpty(&ConversionWebhookSettings.ServerKeyPath, cfg.ValidatingWebhookConfig.ServerKey) | ||
| setIfNotEmpty(&ConversionWebhookSettings.CAPath, cfg.ValidatingWebhookConfig.CA) | ||
| setSliceIfNotEmpty(&ConversionWebhookSettings.ClientCAPaths, cfg.ValidatingWebhookConfig.ClientCA) | ||
| setIfNotEmpty(&ConversionWebhookSettings.ListenPort, cfg.ValidatingWebhookConfig.ListenPort) | ||
| setIfNotEmpty(&ConversionWebhookSettings.ListenAddr, cfg.ValidatingWebhookConfig.ListenAddress) | ||
| } | ||
|
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| func setIfNotEmpty[T comparable](v *T, env T) { | ||
| if !isZero(env) { | ||
| *v = env | ||
| } | ||
| } | ||
|
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| func setSliceIfNotEmpty[T any](v *[]T, env []T) { | ||
| if len(env) != 0 { | ||
| *v = env | ||
| } | ||
| } | ||
|
|
||
| func isZero[T comparable](v T) bool { | ||
| return v == *new(T) | ||
| } |
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