Gas strategy with addendum

.pre-commit-config.yaml

@@ -1,4 +1,21 @@
 repos:
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v4.5.0  # Use the latest stable version
+  hooks:
+    - id: trailing-whitespace
+    - id: end-of-file-fixer
+    - id: check-yaml
+
+- repo: local
+  hooks:
+    - id: poetry-pytest-unit
+      name: Run pytest unit tests with Poetry
+      entry: poetry run pytest -m unit
+      language: system
+      pass_filenames: false
+      always_run: true
+      stages: [commit]
+
 - repo: https://github.com/astral-sh/ruff-pre-commit
   # Ruff version.
   rev: v0.4.4

README.md

@@ -76,6 +76,7 @@ Unvetting is the proces of decreasing approved depositable signing keys.
 | GAS_FEE_PERCENTILE_1              | 20            | Percentile for first recommended fee calculation                                                                         |
 | GAS_FEE_PERCENTILE_DAYS_HISTORY_1 | 1             | Percentile for first recommended calculates from N days of the fee history                                               |
 | GAS_PRIORITY_FEE_PERCENTILE       | 25            | Priority transaction will be N percentile from priority fees in last block (min MIN_PRIORITY_FEE - max MAX_PRIORITY_FEE) |
+| GAS_ADDENDUM                      | 6             | Number of weis to add to the GAS_PRIORITY_FEE_PERCENTILE percentile value                                                |
 | MAX_BUFFERED_ETHERS               | 5000 ether    | Maximum amount of ETH in the buffer, after which the bot deposits at any gas                                             |
 | PROMETHEUS_PORT                   | 9000          | Port with metrics server                                                                                                 |
 | PROMETHEUS_PREFIX                 | depositor_bot | Prefix for the metrics                                                                                                   |

src/blockchain/deposit_strategy/gas_price_calculator.py

@@ -26,7 +26,7 @@ def get_pending_base_fee(self) -> Wei:
 
     def get_recommended_gas_fee(self) -> Wei:
         gas_history = self._fetch_gas_fee_history(variables.GAS_FEE_PERCENTILE_DAYS_HISTORY_1)
-        return Wei(int(numpy.percentile(gas_history, variables.GAS_FEE_PERCENTILE_1)))
+        return Wei(int(numpy.percentile(gas_history, variables.GAS_FEE_PERCENTILE_1)) + variables.GAS_ADDENDUM)
 
     def _fetch_gas_fee_history(self, days: int) -> list[int]:
         latest_block_num = self.w3.eth.get_block('latest')['number']

src/variables.py

@@ -86,6 +86,18 @@
 _env_whitelist = os.getenv('DEPOSIT_MODULES_WHITELIST', '').strip()
 DEPOSIT_MODULES_WHITELIST = [int(module_id) for module_id in _env_whitelist.split(',')] if _env_whitelist else []
 
+"""
+GAS_ADDENDUM is used to increase number of deposits during to calm market. The value should be increased if bot
+wants to deposit more often.
+The value 6 was calculated this way:
+profit_per_val = 32 * 10**9 * 0.03(APR) / 12 / 30
+gas_per_validator = 112176
+x = profit_per_val / gas_per_validator
+
+x / 4(we assume that chances of significant gas drop during 8 hours are low)
+"""
+GAS_ADDENDUM = int(os.getenv('GAS_ADDENDUM', 6))
+
 # All non-private env variables to the logs in main
 PUBLIC_ENV_VARS = {
     'LIDO_LOCATOR': LIDO_LOCATOR,

tests/blockchain/deposit_strategy/test_gas_price_calculator.py

@@ -42,10 +42,10 @@ def test_get_recommended_gas_fee(gas_price_calculator):
     variables.GAS_FEE_PERCENTILE_DAYS_HISTORY_1 = 1
     variables.GAS_FEE_PERCENTILE_1 = 50
 
-    assert gas_price_calculator.get_recommended_gas_fee() == 5
+    assert gas_price_calculator.get_recommended_gas_fee() == 11
 
     variables.GAS_FEE_PERCENTILE_1 = 30
-    assert gas_price_calculator.get_recommended_gas_fee() == 3
+    assert gas_price_calculator.get_recommended_gas_fee() == 9
 
 
 @pytest.mark.integration