forked from TrueCloudLab/frostfs-node
75 lines
1.5 KiB
Go
75 lines
1.5 KiB
Go
package control
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import (
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"crypto/ecdsa"
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"github.com/nspcc-dev/neofs-node/pkg/services/control"
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)
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// Server is an entity that serves
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// Control service on storage node.
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type Server struct {
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*cfg
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}
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// HealthChecker is component interface for calculating
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// the current health status of a node.
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type HealthChecker interface {
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// Must calculate and return current node health status.
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//
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// If status can not be calculated for any reason,
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// control.HealthStatus_STATUS_UNDEFINED should be returned.
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HealthStatus() control.HealthStatus
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}
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// Option of the Server's constructor.
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type Option func(*cfg)
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type cfg struct {
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key *ecdsa.PrivateKey
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allowedKeys [][]byte
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healthChecker HealthChecker
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}
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func defaultCfg() *cfg {
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return &cfg{}
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}
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// New creates, initializes and returns new Server instance.
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func New(opts ...Option) *Server {
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c := defaultCfg()
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for _, opt := range opts {
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opt(c)
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}
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return &Server{
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cfg: c,
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}
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}
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// WithKey returns option to set private key
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// used for signing responses.
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func WithKey(key *ecdsa.PrivateKey) Option {
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return func(c *cfg) {
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c.key = key
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}
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}
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// WithAuthorizedKeys returns option to add list of public
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// keys that have rights to use Control service.
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func WithAuthorizedKeys(keys [][]byte) Option {
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return func(c *cfg) {
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c.allowedKeys = append(c.allowedKeys, keys...)
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}
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}
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// WithHealthChecker returns option to set component
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// to calculate node health status.
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func WithHealthChecker(hc HealthChecker) Option {
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return func(c *cfg) {
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c.healthChecker = hc
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}
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}
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