inits/pkg/apply/files.go

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2018-07-06 08:07:37 +00:00
package apply
import (
"fmt"
"io/ioutil"
"os"
"path/filepath"
"strings"
"novit.nc/direktil/inits/pkg/vars"
"novit.nc/direktil/pkg/config"
dlog "novit.nc/direktil/pkg/log"
)
// Files writes the files from the given config
func Files(cfg *config.Config, log *dlog.Log) (err error) {
err = writeFile(
"/root/.ssh/authorized_keys",
[]byte(strings.Join(cfg.RootUser.AuthorizedKeys, "\n")),
0600, 0700, cfg, log,
)
if err != nil {
return
}
for _, file := range cfg.Files {
mode := file.Mode
if mode == 0 {
mode = 0644
}
content := []byte(file.Content)
err = writeFile(
file.Path,
content,
mode,
0755,
cfg,
log,
)
if err != nil {
return
}
}
return
}
func writeFile(path string, content []byte, fileMode, dirMode os.FileMode,
cfg *config.Config, log *dlog.Log) (err error) {
if err = os.MkdirAll(filepath.Dir(path), dirMode); err != nil {
return
}
content = vars.Substitute(content, cfg)
log.Printf("writing %q, mode %04o, %d bytes", path, fileMode, len(content))
if err = ioutil.WriteFile(path, content, fileMode); err != nil {
err = fmt.Errorf("failed to write %s: %v", path, err)
}
return
}