From 6a8a2cee6d40c40572688b3d93320798b2d1c996 Mon Sep 17 00:00:00 2001
From: ffranr <robyn@lightning.engineering>
Date: Tue, 15 Nov 2022 14:44:43 +0000
Subject: [PATCH] docker: perform dependencies installation in separate run
 layer

This commit separates the task of dependencies installation into its own separate run layer. Previously, dependencies installation shared the same layer as local repo build.

This change means that the dependencies run layer can be reused (cached) whilst the local repo is modified. Which is helpful for regtests.
---
 Dockerfile | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 72d25ff47..dd398d1c9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,5 @@
 FROM --platform=${BUILDPLATFORM} golang:1.18.5-alpine as builder
 
-# Copy in the local repository to build from.
-COPY . /go/src/github.com/lightninglabs/pool
-
 # Force Go to use the cgo based DNS resolver. This is required to ensure DNS
 # queries required to connect to linked containers succeed.
 ENV GODEBUG netdns=cgo
@@ -10,12 +7,12 @@ ENV GODEBUG netdns=cgo
 # Explicitly turn on the use of modules (until this becomes the default).
 ENV GO111MODULE on
 
-# Install dependencies and install/build pool.
-RUN apk add --no-cache --update alpine-sdk \
-    git \
-    make \
-&&  cd /go/src/github.com/lightninglabs/pool \
-&&  make install
+# Install dependencies.
+RUN apk add --no-cache --update alpine-sdk git make
+
+# Build and install both pool binaries (daemon and CLI).
+COPY . /go/src/github.com/lightninglabs/pool
+RUN cd /go/src/github.com/lightninglabs/pool && make install
 
 # Start a new, final image to reduce size.
 FROM --platform=${BUILDPLATFORM} alpine as final