node: Announce version via the attributes

It is done automatically but can be overwritten if `Version` attribute is provided via the application configuration. Closes nspcc-dev#2455. Signed-off-by: Pavel Karpy <[email protected]>
carpawell · Aug 9, 2023 · d3ae487 · d3ae487
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -9,6 +9,7 @@ Changelog for NeoFS Node
 - `renew-domain` command for adm
 - Stored payload metric per container (#2116)
 - Stored payload metric per shard (#2023)
+- SN's version is announced via the attributes automatically but can be overwritten explicitly (#2455)
 
 ### Fixed
 - `neo-go` RPC connection loss handling (#1337)

diff --git a/cmd/neofs-node/config.go b/cmd/neofs-node/config.go
@@ -532,6 +532,11 @@ var persistateSideChainLastBlockKey = []byte("side_chain_last_processed_block")
 func initCfg(appCfg *config.Config) *cfg {
 	c := &cfg{}
 
+	// attaching version to the node's attributes; do not
+	// move it anywhere below reading the other attributes
+	// since a user should be able to overwrite it.
+	writeAppVersion(c)
+
 	err := c.readConfig(appCfg)
 	if err != nil {
 		panic(fmt.Errorf("config reading: %w", err))
@@ -963,3 +968,9 @@ func (c *cfg) configWatcher(ctx context.Context) {
 		}
 	}
 }
+
+// writeAppVersion writes app version as defined at compilation
+// step to the node's attributes.
+func writeAppVersion(c *cfg) {
+	c.cfgNodeInfo.localInfo.SetAttribute("Version", misc.Version)
+}