150 lines
2.9 KiB
Go
150 lines
2.9 KiB
Go
package clustersconfig
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import (
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"io/ioutil"
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"os"
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"path"
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"path/filepath"
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"strings"
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yaml "gopkg.in/yaml.v2"
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)
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func FromDir(dirPath string) (*Config, error) {
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config := &Config{}
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store := dirStore{dirPath}
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load := func(dir, name string, out interface{}) error {
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ba, err := store.Get(path.Join(dir, name))
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if err != nil {
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return err
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}
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return yaml.Unmarshal(ba, out)
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}
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// load clusters
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names, err := store.List("clusters")
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if err != nil {
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return nil, err
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}
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for _, name := range names {
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cluster := &Cluster{Name: name}
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if err := load("clusters", name, cluster); err != nil {
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return nil, err
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}
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config.Clusters = append(config.Clusters, cluster)
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}
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// load groups
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names, err = store.List("groups")
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if err != nil {
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return nil, err
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}
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for _, name := range names {
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o := &Group{Name: name}
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if err := load("groups", name, o); err != nil {
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return nil, err
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}
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config.Groups = append(config.Groups, o)
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}
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// load hosts
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names, err = store.List("hosts")
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if err != nil {
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return nil, err
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}
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for _, name := range names {
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o := &Host{Name: name}
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if err := load("hosts", name, o); err != nil {
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return nil, err
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}
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config.Hosts = append(config.Hosts, o)
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}
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// load config templates
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loadTemplates := func(dir string, templates *[]*Template) error {
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names, err = store.List(dir)
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if err != nil {
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return err
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}
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for _, name := range names {
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ba, err := store.Get(path.Join(dir, name))
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if err != nil {
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return err
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}
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o := &Template{Name: name, Template: string(ba)}
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*templates = append(*templates, o)
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}
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return nil
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}
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if err := loadTemplates("configs", &config.Configs); err != nil {
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return nil, err
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}
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if err := loadTemplates("static-pods", &config.StaticPods); err != nil {
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return nil, err
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}
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if ba, err := ioutil.ReadFile(filepath.Join(dirPath, "ssl-config.json")); err == nil {
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config.SSLConfig = string(ba)
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} else if !os.IsNotExist(err) {
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return nil, err
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}
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if ba, err := ioutil.ReadFile(filepath.Join(dirPath, "cert-requests.yaml")); err == nil {
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reqs := make([]*CertRequest, 0)
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if err = yaml.Unmarshal(ba, &reqs); err != nil {
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return nil, err
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}
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config.CertRequests = reqs
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} else if !os.IsNotExist(err) {
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return nil, err
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}
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return config, nil
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}
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type dirStore struct {
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path string
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}
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// Names is part of the kvStore interface
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func (b *dirStore) List(prefix string) ([]string, error) {
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files, err := filepath.Glob(filepath.Join(b.path, filepath.Join(path.Split(prefix)), "*.yaml"))
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if err != nil {
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return nil, err
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}
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names := make([]string, 0, len(files))
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for _, f := range files {
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f2 := strings.TrimSuffix(f, ".yaml")
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f2 = filepath.Base(f2)
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if f2[0] == '.' { // ignore hidden files
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continue
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}
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names = append(names, f2)
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}
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return names, nil
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}
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// Load is part of the DataBackend interface
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func (b *dirStore) Get(key string) ([]byte, error) {
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return ioutil.ReadFile(filepath.Join(b.path, filepath.Join(path.Split(key))+".yaml"))
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}
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