87 lines
2.6 KiB
Go
87 lines
2.6 KiB
Go
package sysregistries
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import (
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"github.com/BurntSushi/toml"
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"github.com/containers/image/types"
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"io/ioutil"
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"path/filepath"
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)
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// systemRegistriesConfPath is the path to the system-wide registry configuration file
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// and is used to add/subtract potential registries for obtaining images.
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// You can override this at build time with
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// -ldflags '-X github.com/containers/image/sysregistries.systemRegistriesConfPath=$your_path'
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var systemRegistriesConfPath = builtinRegistriesConfPath
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// builtinRegistriesConfPath is the path to registry configuration file
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// DO NOT change this, instead see systemRegistriesConfPath above.
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const builtinRegistriesConfPath = "/etc/containers/registries.conf"
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type registries struct {
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Registries []string `toml:"registries"`
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}
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type tomlConfig struct {
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Registries struct {
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Search registries `toml:"search"`
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Insecure registries `toml:"insecure"`
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Block registries `toml:"block"`
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} `toml:"registries"`
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}
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// Reads the global registry file from the filesystem. Returns
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// a byte array
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func readRegistryConf(ctx *types.SystemContext) ([]byte, error) {
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dirPath := systemRegistriesConfPath
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if ctx != nil {
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if ctx.SystemRegistriesConfPath != "" {
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dirPath = ctx.SystemRegistriesConfPath
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} else if ctx.RootForImplicitAbsolutePaths != "" {
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dirPath = filepath.Join(ctx.RootForImplicitAbsolutePaths, systemRegistriesConfPath)
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}
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}
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configBytes, err := ioutil.ReadFile(dirPath)
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return configBytes, err
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}
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// For mocking in unittests
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var readConf = readRegistryConf
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// Loads the registry configuration file from the filesystem and
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// then unmarshals it. Returns the unmarshalled object.
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func loadRegistryConf(ctx *types.SystemContext) (*tomlConfig, error) {
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config := &tomlConfig{}
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configBytes, err := readConf(ctx)
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if err != nil {
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return nil, err
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}
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err = toml.Unmarshal(configBytes, &config)
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return config, err
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}
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// GetRegistries returns an array of strings that contain the names
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// of the registries as defined in the system-wide
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// registries file. it returns an empty array if none are
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// defined
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func GetRegistries(ctx *types.SystemContext) ([]string, error) {
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config, err := loadRegistryConf(ctx)
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if err != nil {
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return nil, err
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}
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return config.Registries.Search.Registries, nil
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}
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// GetInsecureRegistries returns an array of strings that contain the names
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// of the insecure registries as defined in the system-wide
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// registries file. it returns an empty array if none are
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// defined
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func GetInsecureRegistries(ctx *types.SystemContext) ([]string, error) {
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config, err := loadRegistryConf(ctx)
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if err != nil {
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return nil, err
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}
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return config.Registries.Insecure.Registries, nil
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}
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