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utils: split generation and writing of storage.conf
split the generation for the default storage.conf and when we write it if not existing for a rootless user. This is necessary because during the startup we might be overriding the default configuration through --storage-driver and --storage-opt, that would not be written down to the storage.conf file we generated. Closes: https://github.com/containers/libpod/issues/2659 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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@ -505,17 +505,27 @@ func newRuntimeFromConfig(userConfigPath string, options ...RuntimeOption) (runt
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return nil, errors.Wrapf(err, "error configuring runtime")
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}
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}
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if !foundConfig && rootlessConfigPath != "" {
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os.MkdirAll(filepath.Dir(rootlessConfigPath), 0755)
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file, err := os.OpenFile(rootlessConfigPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
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if err != nil && !os.IsExist(err) {
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return nil, errors.Wrapf(err, "cannot open file %s", rootlessConfigPath)
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if rootlessConfigPath != "" {
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// storage.conf
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storageConfFile := util.StorageConfigFile()
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if _, err := os.Stat(storageConfFile); os.IsNotExist(err) {
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if err := util.WriteStorageConfigFile(&runtime.config.StorageConfig, storageConfFile); err != nil {
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return nil, errors.Wrapf(err, "cannot write config file %s", storageConfFile)
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}
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}
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if err == nil {
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defer file.Close()
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enc := toml.NewEncoder(file)
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if err := enc.Encode(runtime.config); err != nil {
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os.Remove(rootlessConfigPath)
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if !foundConfig {
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os.MkdirAll(filepath.Dir(rootlessConfigPath), 0755)
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file, err := os.OpenFile(rootlessConfigPath, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
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if err != nil && !os.IsExist(err) {
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return nil, errors.Wrapf(err, "cannot open file %s", rootlessConfigPath)
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}
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if err == nil {
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defer file.Close()
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enc := toml.NewEncoder(file)
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if err := enc.Encode(runtime.config); err != nil {
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os.Remove(rootlessConfigPath)
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}
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}
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}
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}
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@ -311,36 +311,37 @@ func GetDefaultStoreOptions() (storage.StoreOptions, error) {
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storageOpts = storage.StoreOptions{}
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storage.ReloadConfigurationFile(storageConf, &storageOpts)
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}
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if rootless.IsRootless() {
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if os.IsNotExist(err) {
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os.MkdirAll(filepath.Dir(storageConf), 0755)
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file, err := os.OpenFile(storageConf, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
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if err != nil {
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return storageOpts, errors.Wrapf(err, "cannot open %s", storageConf)
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}
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tomlConfiguration := getTomlStorage(&storageOpts)
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defer file.Close()
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enc := toml.NewEncoder(file)
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if err := enc.Encode(tomlConfiguration); err != nil {
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os.Remove(storageConf)
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}
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} else if err == nil {
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// If the file did not specify a graphroot or runroot,
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// set sane defaults so we don't try and use root-owned
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// directories
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if storageOpts.RunRoot == "" {
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storageOpts.RunRoot = defaultRootlessRunRoot
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}
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if storageOpts.GraphRoot == "" {
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storageOpts.GraphRoot = defaultRootlessGraphRoot
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}
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if rootless.IsRootless() && err == nil {
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// If the file did not specify a graphroot or runroot,
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// set sane defaults so we don't try and use root-owned
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// directories
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if storageOpts.RunRoot == "" {
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storageOpts.RunRoot = defaultRootlessRunRoot
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}
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if storageOpts.GraphRoot == "" {
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storageOpts.GraphRoot = defaultRootlessGraphRoot
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}
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}
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return storageOpts, nil
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}
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// WriteStorageConfigFile writes the configuration to a file
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func WriteStorageConfigFile(storageOpts *storage.StoreOptions, storageConf string) error {
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os.MkdirAll(filepath.Dir(storageConf), 0755)
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file, err := os.OpenFile(storageConf, os.O_RDWR|os.O_CREATE|os.O_EXCL, 0666)
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if err != nil {
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return errors.Wrapf(err, "cannot open %s", storageConf)
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}
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tomlConfiguration := getTomlStorage(storageOpts)
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defer file.Close()
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enc := toml.NewEncoder(file)
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if err := enc.Encode(tomlConfiguration); err != nil {
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os.Remove(storageConf)
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return err
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}
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return nil
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}
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// StorageConfigFile returns the path to the storage config file used
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func StorageConfigFile() string {
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if rootless.IsRootless() {
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