From d0c3b50e8f67a57e4ee418b9598db5916f9a5d69 Mon Sep 17 00:00:00 2001
From: Steven Hartland <stevenmhartland@gmail.com>
Date: Wed, 9 Oct 2024 08:59:54 +0100
Subject: [PATCH] chore: add caching to Linux docker run (#123)
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Add cache mount directives to Linux docker container so that reruns
are much quicker.

Co-authored-by: Manuel de la Peña <social.mdelapenya@gmail.com>
---
 linux/Dockerfile | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/linux/Dockerfile b/linux/Dockerfile
index e37d649..75b406b 100644
--- a/linux/Dockerfile
+++ b/linux/Dockerfile
@@ -3,19 +3,22 @@
 # -----------
 FROM golang:1.23-alpine3.19 AS build
 
+WORKDIR /app
+
 # Go build env
 ENV CGO_ENABLED=0
 
-WORKDIR /app
-
 # Install source deps
 COPY go.mod go.sum ./
-RUN go mod download
+RUN --mount=type=cache,target=/go/pkg/mod \
+    go mod download
 
 # Copy source & build
-COPY . .
-RUN go build -v -ldflags '-s' -o /bin/ryuk
-RUN chmod +x /bin/ryuk
+COPY --link . .
+
+RUN --mount=type=cache,target=/go/pkg/mod \
+    --mount=type=cache,target=/root/.cache/go-build \
+    go build -ldflags '-s' -o /bin/ryuk
 
 # -----------------
 # Distributed Image