1  # If you change this please also update GO_VERSION in Makefile (then run
 2  # `make lint` to see where else it needs to be updated as well).
 3  FROM golang:1.25.5-alpine as builder
 4  
 5  # Force Go to use the cgo based DNS resolver. This is required to ensure DNS
 6  # queries required to connect to linked containers succeed.
 7  ENV GODEBUG netdns=cgo
 8  
 9  # Pass a tag, branch or a commit using build-arg.  This allows a docker
10  # image to be built from a specified Git state.  The default image
11  # will use the Git tip of master by default.
12  ARG checkout="master"
13  ARG git_url="https://github.com/lightningnetwork/lnd"
14  
15  # Install dependencies and build the binaries.
16  RUN apk add --no-cache --update alpine-sdk \
17      git \
18      make \
19      gcc \
20  &&  git clone $git_url /go/src/github.com/lightningnetwork/lnd \
21  &&  cd /go/src/github.com/lightningnetwork/lnd \
22  &&  git checkout $checkout \
23  &&  make release-install
24  
25  # Start a new, final image.
26  FROM alpine as final
27  
28  # Define a root volume for data persistence.
29  VOLUME /root/.lnd
30  
31  # Add utilities for quality of life and SSL-related reasons. We also require
32  # wget and gpg for the signature verification script.
33  RUN apk --no-cache add \
34      bash \
35      jq \
36      ca-certificates \
37      gnupg \
38      wget
39  
40  # Copy the binaries from the builder image.
41  COPY --from=builder /go/bin/lncli /bin/
42  COPY --from=builder /go/bin/lnd /bin/
43  COPY --from=builder /go/src/github.com/lightningnetwork/lnd/scripts/verify-install.sh /
44  COPY --from=builder /go/src/github.com/lightningnetwork/lnd/scripts/keys/* /keys/
45  
46  # Store the SHA256 hash of the binaries that were just produced for later
47  # verification.
48  RUN sha256sum /bin/lnd /bin/lncli > /shasums.txt \
49    && cat /shasums.txt
50  
51  # Expose lnd ports (p2p, rpc).
52  EXPOSE 9735 10009
53  
54  # Specify the start command and entrypoint as the lnd daemon.
55  ENTRYPOINT ["lnd"]