add monitoring

Author: dzhelezov

.vscode/ltex.hiddenFalsePositives.en-US.txt

@@ -9,3 +9,4 @@
 {"rule":"WHITESPACE_RULE","sentence":"^\\QEthereum Mainnet \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nEthereum Goerli Testnet \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nPolygon \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nPolygon Mumbai Testnet \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nAvalanche C-Chain \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nFantom \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nExosama Network \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nBinance Chain \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nBinance Chain Testnet \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nSKALE Calypso NFT Hub \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nSKALE Calypso (stage) \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nBOBA Ethereum \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nBOBA Moonbeam \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q\nArbitrum One   \\E(?:Dummy|Ina|Jimmy-)[0-9]+\\Q (*)\nOptimism Coming Soon\\E$"}
 {"rule":"POSSESSIVE_APOSTROPHE","sentence":"^\\QFull code is available in the examples repo.\\E$"}
 {"rule":"POSSESSIVE_APOSTROPHE","sentence":"^\\QTypes bundle can be specified in three different ways:\nas a name of a known chain\nas a name of a JSON file structured as a types bundle\nas a types bundle object\\E$"}
+{"rule":"MISSING_GENITIVE","sentence":"^\\QPostgres metrics will be available in the future Aquarium releases.\\E$"}

docs/deploy-squid/monitoring.md

@@ -0,0 +1,27 @@
+---
+sidebar_position: 12
+title: Monitoring
+description: Prometheus endpoints for squid services
+---
+
+# Monitoring
+
+Each deployed squid version exposes Prometheus metrics for external monitoring with e.g. Grafana. Each squid service exposes Prometheus metrics at the canonical `/${service}/metrics` route. For example, the processor metrics for a squid named `colonial-pink`, version `1` are available at https://squid.subsquid.io/colonial-pink/v/v1/processor/metrics. 
+It works as well [production aliases](/deploy-squid/promote-to-production): https://squid.subsquid.io/colonial-pink/processor/metrics 
+
+## Processor metrics
+
+The metrics are documented inline and include: 
+- `sqd_processor_last_block`. The last processed block.
+- `sqd_processor_chain_height`. Current chain height as reported by the archive.
+- `sqd_processor_archive_http_errors_in_row`. The number of consecutive failed Archive requests
+
+Inspect the metrics endpoint for a full list.
+
+## Postgres metrics
+
+Postgres metrics will be available in the future Aquarium releases. 
+
+## API metrics
+
+API metrics will be available in the future Aquarium releases.