feat(network): Add zec.rocks DNS seeders (#11096)

Author: mergify[bot]

CHANGELOG.md

@@ -9,6 +9,8 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Added
 
+- Added `seeder.zec.rocks` and `seeder.testnet.zec.rocks` as default DNS seeders
+  ([#11096](https://github.com/ZcashFoundation/zebra/pull/11096)).
 - Prometheus metrics now separate peer connection attempts and terminal outcomes by network,
   direction, address family, lifecycle stage, and bounded outcome. Version-message metrics also
   report the bounded self-reported implementation class without using peer IPs or raw user agents

zebra-network/CHANGELOG.md

@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- `seeder.zec.rocks` and `seeder.testnet.zec.rocks` are now default DNS seeders in
+  `Config::default()`, for Mainnet and Testnet respectively
+  ([#11096](https://github.com/ZcashFoundation/zebra/pull/11096)).
 - Connection-attempt, terminal-outcome, and remote-version metrics with bounded network,
   direction, address-family, lifecycle-stage, outcome, and implementation labels.
 

zebra-network/src/config.rs

@@ -550,13 +550,15 @@ impl Default for Config {
             "dnsseed.z.cash:8233",
             "mainnet.seeder.shieldedinfra.net:8233",
             "mainnet.seeder.zfnd.org:8233",
+            "seeder.zec.rocks:8233",
         ]
         .iter()
         .map(|&s| String::from(s))
         .collect();
 
         let testnet_peers = [
             "dnsseed.testnet.z.cash:18233",
+            "seeder.testnet.zec.rocks:18233",
             "testnet.seeder.zfnd.org:18233",
         ]
         .iter()

zebrad/tests/common/configs/v6.3.0.toml

@@ -0,0 +1,120 @@
+# Default configuration for zebrad.
+#
+# This file can be used as a skeleton for custom configs.
+#
+# Unspecified fields use default values. Optional fields are Some(field) if the
+# field is present and None if it is absent.
+#
+# This file is generated as an example using zebrad's current defaults.
+# You should set only the config options you want to keep, and delete the rest.
+# Only a subset of fields are present in the skeleton, since optional values
+# whose default is None are omitted.
+#
+# The config format (including a complete list of sections and fields) is
+# documented here:
+# https://docs.rs/zebrad/latest/zebrad/config/struct.ZebradConfig.html
+#
+# CONFIGURATION SOURCES (in order of precedence, highest to lowest):
+#
+# 1. Environment variables with ZEBRA_ prefix (highest precedence)
+#    - Format: ZEBRA_SECTION__KEY (double underscore for nested keys)
+#    - Examples:
+#      - ZEBRA_NETWORK__NETWORK=Testnet
+#      - ZEBRA_RPC__LISTEN_ADDR=127.0.0.1:8232
+#      - ZEBRA_STATE__CACHE_DIR=/path/to/cache
+#      - ZEBRA_TRACING__FILTER=debug
+#      - ZEBRA_METRICS__ENDPOINT_ADDR=0.0.0.0:9999
+#
+# 2. Configuration file (TOML format)
+#    - At the path specified via -c flag, e.g. `zebrad -c myconfig.toml start`, or
+#    - At the default path in the user's preference directory (platform-dependent, see below)
+#
+# 3. Hard-coded defaults (lowest precedence)
+#
+# The user's preference directory and the default path to the `zebrad` config are platform dependent,
+# based on `dirs::preference_dir`, see https://docs.rs/dirs/latest/dirs/fn.preference_dir.html :
+#
+# | Platform | Value                                 | Example                                        |
+# | -------- | ------------------------------------- | ---------------------------------------------- |
+# | Linux    | `$XDG_CONFIG_HOME` or `$HOME/.config` | `/home/alice/.config/zebrad.toml`              |
+# | macOS    | `$HOME/Library/Preferences`           | `/Users/Alice/Library/Preferences/zebrad.toml` |
+# | Windows  | `{FOLDERID_RoamingAppData}`           | `C:\Users\Alice\AppData\Local\zebrad.toml`     |
+
+[consensus]
+checkpoint_sync = true
+
+[health]
+enforce_on_test_networks = false
+min_connected_peers = 1
+ready_max_blocks_behind = 2
+ready_max_tip_age = "5m"
+
+[mempool]
+eviction_memory_time = "1h"
+max_datacarrier_bytes = 83
+tx_cost_limit = 80000000
+
+[metrics]
+
+[mining]
+internal_miner = false
+
+[network]
+cache_dir = true
+crawl_new_peer_interval = "1m 1s"
+initial_mainnet_peers = [
+    "dnsseed.str4d.xyz:8233",
+    "dnsseed.z.cash:8233",
+    "mainnet.seeder.shieldedinfra.net:8233",
+    "mainnet.seeder.zfnd.org:8233",
+    "seeder.zec.rocks:8233",
+]
+initial_testnet_peers = [
+    "dnsseed.testnet.z.cash:18233",
+    "seeder.testnet.zec.rocks:18233",
+    "testnet.seeder.zfnd.org:18233",
+]
+listen_addr = "[::]:8233"
+max_connections_per_ip = 1
+network = "Mainnet"
+peerset_initial_target_size = 25
+
+[notify]
+
+[rpc]
+cookie_dir = "cache_dir"
+debug_force_finished_sync = false
+enable_cookie_auth = true
+max_response_body_size = 52428800
+parallel_cpu_threads = 0
+
+[state]
+cache_dir = "cache_dir"
+debug_skip_non_finalized_state_backup_task = false
+delete_old_database = true
+ephemeral = false
+should_backup_non_finalized_state = true
+
+[sync]
+checkpoint_verify_concurrency_limit = 1000
+download_concurrency_limit = 50
+full_verify_concurrency_limit = 20
+parallel_cpu_threads = 0
+
+[tracing]
+buffer_limit = 128000
+force_use_color = false
+use_color = true
+use_journald = false
+
+[zcashd_compat]
+block_gossip_peer_ips = []
+enabled = false
+manage_zcashd = false
+restart_backoff = "2s"
+restart_backoff_max = "5m"
+restart_reset_after = "1h"
+shutdown_grace_period = "5m"
+startup_delay = "1s"
+zcashd_extra_args = []
+zcashd_source = "path"