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+# About this docker-compose
+
+The docker-compose can be used for production purpose.
+
+It is composed of:
+
+1. A full node (Bitcoin Core)
+2. A lightweight block explorer ([NBxplorer](https://github.com/dgarage/NBXplorer))
+3. A [BTCPay Server](https://github.com/btcpayserver/btcpayserver)
+4. A database (Postgres)
+5. A reverse proxy (NGINX)
+6. Two containers configuring NGINX as a reverse proxy and renewing SSL certificates.
+
+![Architecture](Production.png)
+
+This docker-compose is used for [one click deploy on azure](https://github.com/btcpayserver/btcpayserver-azure) by an Ubuntu, it can be used on any docker supporting host.
+
+The relevant environment variables are:
+
+* `NBITCOIN_NETWORK`: the blockchain identifier used by NBitcoin (eg., `regtest`, `testnet`, `mainnet`)
+* `BTCPAY_HOST`: the external url used to access the NGINX server from internet
+* `LETSENCRYPT_EMAIL`: The email Let's Encrypt will use to notify you about certificate expiration.
+* `BITCOIND_COOKIEFILE`: The relative path to RPC cookie file from bitcoin's data directory. (`.cookie` for mainnet, `regtest/.cookie` for regtest, `testnet3/.cookie` for testnet)
+* `BITCOIND_NETWORKPARAMETER`: The blockchain identifier parameter used by bitcoind (`regtest=1` for regtest, `testnet=1` for testnet, `#mainnet=1` for mainnet)
+* `ACME_CA_URI`: Let's encrypt API endpoint (`https://acme-staging.api.letsencrypt.org/directory` for a staging certificate, `https://acme-v01.api.letsencrypt.org/directory` for a production one)
+
+Any unset or empty environment variable will be set for a `regtest` deployment.
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