From 7865384e859447909d782e84997152ceaab37c42 Mon Sep 17 00:00:00 2001
From: 3np <3np>
Date: Mon, 28 Feb 2022 20:53:47 +0100
Subject: [PATCH] docker: add git_url build-arg

---
 Dockerfile                                 | 3 ++-
 docs/DOCKER.md                             | 8 +++++++-
 docs/release-notes/release-notes-0.15.0.md | 2 ++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 92782a85f..9f0048e48 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -14,13 +14,14 @@ ENV GODEBUG netdns=cgo
 # image to be built from a specified Git state.  The default image
 # will use the Git tip of master by default.
 ARG checkout="master"
+ARG git_url="https://github.com/lightningnetwork/lnd"
 
 # Install dependencies and build the binaries.
 RUN apk add --no-cache --update alpine-sdk \
     git \
     make \
     gcc \
-&&  git clone https://github.com/lightningnetwork/lnd /go/src/github.com/lightningnetwork/lnd \
+&&  git clone $git_url /go/src/github.com/lightningnetwork/lnd \
 &&  cd /go/src/github.com/lightningnetwork/lnd \
 &&  git checkout $checkout \
 &&  make release-install
diff --git a/docs/DOCKER.md b/docs/DOCKER.md
index 61abb7a18..37d5534e7 100644
--- a/docs/DOCKER.md
+++ b/docs/DOCKER.md
@@ -115,7 +115,7 @@ To test the Docker production image locally, run the following from the project
 ⛰  docker build . -t myrepository/lnd:master
 ```
 
-To choose a specific [branch](https://github.com/lightningnetwork/lnd/branches) or [tag](https://hub.docker.com/r/lightninglabs/lnd/tags?page=1&ordering=last_updated) instead, use the "checkout" build-arg. For example, to build the latest tagged commit:
+To choose a specific [branch](https://github.com/lightningnetwork/lnd/branches) or [tag](https://hub.docker.com/r/lightninglabs/lnd/tags?page=1&ordering=last_updated) instead, use the `checkout` build-arg. For example, to build the latest tagged commit:
 
 ```shell
 ⛰  docker build . --build-arg checkout=v0.14.1-beta -t myrepository/lnd:v0.14.1-beta
@@ -127,6 +127,12 @@ To build the image using the most current tag:
 ⛰  docker build . --build-arg checkout=$(git describe --tags `git rev-list --tags --max-count=1`) -t myrepository/lnd:latest-tag
 ```
 
+You can also specify a different repo than the default (`https://github.com/lightningnetwork/lnd`) using the `git_url` build-arg:
+
+```shell
+⛰  docker build . --build-arg git_url=https://git.example.com/lnd.git --build-arg checkout=mybranch -t myrepository/lnd:v0.13.0-beta
+```
+
 Once the image has been built and tagged locally, start the container:
 
 ```shell
diff --git a/docs/release-notes/release-notes-0.15.0.md b/docs/release-notes/release-notes-0.15.0.md
index 301f41e02..817241740 100644
--- a/docs/release-notes/release-notes-0.15.0.md
+++ b/docs/release-notes/release-notes-0.15.0.md
@@ -69,6 +69,8 @@
 * [The `tlv` package was refactored into its own Golang
   submodule](https://github.com/lightningnetwork/lnd/pull/6283).
 
+* [Source repository can now be specified for Docker image builds](https://github.com/lightningnetwork/lnd/pull/6300)
+
 ## RPC Server
 
 * [Add value to the field