github.com/docker/docker@v299999999.0.0-20200612211812-aaf470eca7b5+incompatible/daemon/logger/loggerutils/cache/validate.go (about)

     1  package cache
     2  
     3  import (
     4  	"strconv"
     5  
     6  	"github.com/docker/docker/daemon/logger"
     7  	"github.com/docker/docker/daemon/logger/local"
     8  	"github.com/pkg/errors"
     9  )
    10  
    11  func init() {
    12  	for k, v := range local.LogOptKeys {
    13  		builtInCacheLogOpts[cachePrefix+k] = v
    14  	}
    15  	logger.AddBuiltinLogOpts(builtInCacheLogOpts)
    16  	logger.RegisterExternalValidator(validateLogCacheOpts)
    17  }
    18  
    19  func validateLogCacheOpts(cfg map[string]string) error {
    20  	if v := cfg[cacheDisabledKey]; v != "" {
    21  		_, err := strconv.ParseBool(v)
    22  		if err != nil {
    23  			return errors.Errorf("invalid value for option %s: %s", cacheDisabledKey, cfg[cacheDisabledKey])
    24  		}
    25  	}
    26  	return nil
    27  }
    28  
    29  // MergeDefaultLogConfig reads the default log opts and makes sure that any caching related keys that exist there are
    30  // added to dst.
    31  func MergeDefaultLogConfig(dst, defaults map[string]string) {
    32  	for k, v := range defaults {
    33  		if !builtInCacheLogOpts[k] {
    34  			continue
    35  		}
    36  		if _, exists := dst[k]; !exists {
    37  			dst[k] = v
    38  		}
    39  	}
    40  }