frostfs-api/netmap/types.proto

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syntax = "proto3";
package neo.fs.v2.netmap;
option go_package = "github.com/nspcc-dev/neofs-api-go/v2/netmap/grpc;netmap";
option csharp_namespace = "NeoFS.API.v2.Netmap";
// Operations on filters
enum Operation {
// No Operation defined
OPERATION_UNSPECIFIED = 0;
// Equal
EQ = 1;
// Not Equal
NE = 2;
// Greater then
GT = 3;
// Greater or equal
GE = 4;
// Less then
LT = 5;
// Less or equal
LE = 6;
// Logical OR
OR = 7;
// Logical AND
AND = 8;
}
// Selector modifier shows how the node set will be formed. By default selector
// just groups nodes into a bucket by attribute, selecting nodes only by their
// hash distance.
enum Clause{
// No modifier defined. Will select nodes from bucket randomly.
CLAUSE_UNSPECIFIED = 0;
// SAME will select only nodes having the same value of bucket attribute
SAME = 1;
// DISTINCT will select nodes having different values of bucket attribute
DISTINCT = 2;
}
// Filter will return the subset of nodes from `NetworkMap` or another filter's
// results, that will satisfy filter's conditions.
message Filter {
// Name of the filter or a reference to the named filter. '*' means
// application to the whole unfiltered NetworkMap. At top level it's used as a
// filter name. At lower levels it's considered to be a reference to another
// named filter
string name = 1 [json_name = "name"];
// Key to filter
string key = 2 [json_name = "key"];
// Filtering operation
Operation op = 3 [json_name = "op"];
// Value to match
string value = 4 [json_name = "value"];
// List of inner filters. Top level operation will be applied to the whole
// list.
repeated Filter filters = 5 [json_name = "filters"];
}
// Selector chooses a number of nodes from the bucket taking the nearest nodes
// to the provided `ContainerID` by hash distance.
message Selector {
// Selector name to reference in object placement section
string name = 1 [json_name = "name"];
// How many nodes to select from the bucket
uint32 count = 2 [json_name = "count"];
// Selector modifier showing how to form a bucket
Clause clause = 3 [json_name = "clause"];
// Attribute bucket to select from
string attribute = 4 [json_name = "attribute"];
// Filter reference to select from
string filter = 5 [json_name = "filter"];
}
// Number of object replicas in a set of nodes from the defined selector. If no
// selector set the root bucket containing all possible nodes will be used by
// default.
message Replica {
// How many object replicas to put
uint32 count = 1 [json_name = "count"];
// Named selector bucket to put replicas
string selector = 2 [json_name = "selector"];
}
// Set of rules to select a subset of nodes from `NetworkMap` able to store
// container's objects. The format is simple enough to transpile from different
// storage policy definition languages.
message PlacementPolicy {
// Rules to set number of object replicas and place each one into a named
// bucket
repeated Replica replicas = 1 [json_name = "replicas"];
// Container backup factor controls how deep NeoFS will search for nodes
// alternatives to include into container's nodes subset
uint32 container_backup_factor = 2 [json_name = "containerBackupFactor"];
// Set of Selectors to form the container's nodes subset
repeated Selector selectors = 3 [json_name = "selectors"];
// List of named filters to reference in selectors
repeated Filter filters = 4 [json_name = "filters"];
}
// NeoFS node description
message NodeInfo {
// Public key of the NeoFS node in a binary format.
bytes public_key = 1 [json_name = "publicKey"];
// Ways to connect to a node
string address = 2 [json_name = "address"];
// Administrator-defined Attributes of the NeoFS Storage Node.
//
// `Attribute` is a Key-Value metadata pair. Key name must be a valid UTF-8
// string. Value can't be empty.
//
// Node's attributes are mostly used during Storage Policy evaluation to
// calculate object's placement and find a set of nodes satisfying policy
// requirements. There are some "well-known" node attributes common to all the
// Storage Nodes in the network and used implicitly with default values if not
// explicitly set:
//
// * Capacity \
// Total available disk space in Gigabytes.
// * Price \
// Price in GAS tokens for storing one GB of data during one Epoch. In node
// attributes it's a string presenting floating point number with comma or
// point delimiter for decimal part. In the Network Map it will be saved as
// 64-bit unsigned integer representing number of minimal token fractions.
// * Subnet \
// String ID of Node's storage subnet. There can be only one subnet served
// by the Storage Node.
// * UN-LOCODE \
// Node's geographic location in
// [UN/LOCODE](https://www.unece.org/cefact/codesfortrade/codes_index.html)
// format approximated to the nearest point defined in standard.
// * CountryCode \
// TODO: write description.
// * Country \
// Country code in
// [ISO 3166-1_alpha-2](https://en.wikipedia.org/wiki/ISO_3166-1_alpha-2)
// format. Calculated automatically from `Locode` attribute
// * Region \
// Country's administative subdivision where node is located. Calculated
// automatically from `Locode` attribute based on `SubDiv` field. Presented
// in [ISO 3166-2](https://en.wikipedia.org/wiki/ISO_3166-2) format.
// * City \
// City, town, village or rural area name where node is located written
// without diacritics . Calculated automatically from `Locode` attribute.
//
// For detailed description of each well-known attribute please see the
// corresponding section in NeoFS Technical specification.
message Attribute {
// Key of the node attribute.
string key = 1 [json_name = "key"];
// Value of the node attribute.
string value = 2 [json_name = "value"];
// Parent keys, if any. For example for `City` it could be `Region` and
// `Country`.
repeated string parents = 3 [json_name = "parents"];
}
// Carries list of the NeoFS node attributes in a key-value form. Key name
// must be a node-unique valid UTF-8 string. Value can't be empty. NodeInfo
// structures with duplicated attribute names or attributes with empty values
// will be considered invalid.
repeated Attribute attributes = 3 [json_name = "attributes"];
// Represents the enumeration of various states of the NeoFS node.
enum State {
// Unknown state.
UNSPECIFIED = 0;
// Active state in the network.
ONLINE = 1;
// Network unavailable state.
OFFLINE = 2;
}
// Carries state of the NeoFS node.
State state = 4 [json_name = "state"];
}