added docker environment

docker/Dockerfile

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+FROM golang:alpine as builder
+COPY . /go/src/lnaddrd
+WORKDIR /go/src/lnaddrd
+RUN go build
+
+FROM alpine
+MAINTAINER Frédéric Logier <fredix@protonmail.com>
+COPY --from=builder /go/src/lnaddrd/lnaddrd /usr/bin/
+RUN mkdir /usr/share/lnaddrd
+WORKDIR /usr/share/lnaddrd
+
+EXPOSE 3441
+
+ENTRYPOINT ["lnaddrd","/usr/share/lnaddrd/lnaddrd.yaml"]

docker/README.md

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+## docker-compose.yml
+
+Change your lnaddrd's volume and lnd's volume according your config:
+
+* /your/volume/lnaddrd 
+* /your/volume/lnd
+
+## lnaddrd.yaml
+
+* change url_authority according your domain
+* change lightning_address_usernames
+* change short_description
+* copy your icon.png to /your/volume/lnaddrd
+* set your lnd host
+
+## build
+
+build your docker container with :
+
+```sh
+docker compose build
+```
+
+launch with
+
+```sh
+docker compose up -d
+```

docker/docker-compose.yml

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+services:
+  lnaddrd:
+    container_name: lnaddrd
+    restart: always
+    build:
+      context: ..
+      dockerfile: ./docker/Dockerfile
+    ports:
+      - 3441:3441
+    volumes:
+      - /your/volume/lnaddrd:/usr/share/lnaddrd:ro
+      - /your/volume/lnd:/usr/share/lnd:ro

docker/lnaddrd.yaml

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+# This configures how the webserver will bind and expose its HTTP stack.
+# By default it serves unencrypted HTTP. Specify a TLS cert+key to serve
+# clients over HTTPS instead.
+webserver:
+  bind_address: 0.0.0.0:3441              # required
+  # tls_cert_file: /path/to/server.tls.cert # optional
+  # tls_key_file: /path/to/server.tls.key   # optional
+
+lnurl:
+  # This must be the base URL of your server.
+  url_authority: https://conduition.io # required
+
+  # Both of these will be included in the pay request metadata array.
+  # The icon_file can be either a PNG or a JPEG file.
+  short_description: "Donation to conduition" # optional
+  icon_file: /usr/share/lnaddrd/icon.png                # required
+
+  # Determines the range of acceptable payment amounts.
+  max_pay_request_sats: 5000000000 # required
+  min_pay_request_sats: 100       # required
+
+  # Determines the expiry time of BOLT11 invoices we create.
+  # Defaults to whatever the remote LND instance uses by default.
+  invoice_expiry: "1h" # optional
+  # invoice_expiry: "20m"
+  # invoice_expiry: "100s"
+
+# Accept lightning address requests for the following usernames.
+lightning_address_usernames: # optional
+  - conduition
+
+# Configure a connection to LND's REST API.
+#
+# You can find invoices.macaroon in:     ~/.lnd/data/chain/bitcoin/mainnet/invoices.macaroon
+# You can find LND's TLS certificate in: ~/.lnd/tls.cert
+#
+# Note that your LND certificate MUST have the 'host' field listed as a SAN.
+# (hint: use the 'tlsextradomain' option in lnd.conf)
+lnd:
+  host: conduition.io:8080                  # required
+  macaroon_file: /usr/share/lnd/data/chain/bitcoin/mainnet/invoices.macaroon # required
+  tls_cert_file: /usr/share/lnd/tls.cert      # required