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metadata.go
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metadata.go
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package api
import (
"fmt"
)
// MetadataConfiguration represents a server's exposed configuration metadata
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfiguration struct {
// Metadata about configuration keys.
// Example: {'configs': {'instance': {...}}}
Config MetadataConfig `json:"configs" yaml:"configs"`
}
// GetKeys provides an easy way to interact with MetadataConfiguration.
func (m *MetadataConfiguration) GetKeys(entity string, group string) (map[string]MetadataConfigKey, error) {
keys := map[string]MetadataConfigKey{}
// Get the entity.
configEntity, ok := m.Config[MetadataConfigEntityName(entity)]
if !ok {
return nil, fmt.Errorf("Requested configuration entity %q doesn't exist", entity)
}
// Get the group.
configGroup, ok := configEntity[MetadataConfigGroupName(group)]
if !ok {
return nil, fmt.Errorf("Requested configuration group %q doesn't exist", group)
}
// Go over the keys.
for _, k := range configGroup.Keys {
for name, entry := range k {
keys[name] = entry
}
}
return keys, nil
}
// MetadataConfig repreents metadata about configuration keys
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfig map[MetadataConfigEntityName]map[MetadataConfigGroupName]MetadataConfigGroup
// MetadataConfigEntityName represents a main API object type
// Example: instance
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfigEntityName string
// MetadataConfigGroupName represents the name of a group of config keys
// Example: volatile
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfigGroupName string
// MetadataConfigGroup represents a group of config keys
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfigGroup struct {
Keys []map[string]MetadataConfigKey `json:"keys" yaml:"keys"`
}
// MetadataConfigKey describe a configuration key
//
// swagger:model
//
// API extension: metadata_configuration.
type MetadataConfigKey struct {
// Condition specifies the condition that must be met for the option to be taken into account
// Example: container
Condition string `json:"condition,omitempty" yaml:"condition,omitempty"`
// Scope defines if option apply to cluster or to the local server
// Example: global
Scope string `json:"scope,omitempty" yaml:"scope,omitempty"`
// Type specifies the type of the option
// Example: string
Type string `json:"type" yaml:"type"`
// DefaultDesc specify default value for configuration
// Example: "`DHCP on eth0`"
Default string `json:"defaultdesc,omitempty" yaml:"defaultdesc,omitempty"`
// LiveUpdate specifies whether the server must be restarted for the option to be updated
// Example: "no"
LiveUpdate string `json:"liveupdate,omitempty" yaml:"liveupdate,omitempty"`
// ShortDesc provides short description for the configuration
// Example: "Kernel modules to load before starting the instance"
Description string `json:"shortdesc" yaml:"shortdesc"`
// LongDesc provides long description for the option
// Example: "Specify the kernel modules as a comma-separated list."
LongDescription string `json:"longdesc" yaml:"longdesc"`
}