From cf828f544db5efaee1c3ed007dfe7b1502aa5ebd Mon Sep 17 00:00:00 2001
From: Alex Luong <alex@alexluong.com>
Date: Sun, 16 Aug 2026 13:49:49 +0700
Subject: [PATCH] build: drop gin's unused msgpack binding

Outpost never uses msgpack request binding, but gin links its codec
unconditionally. gin guards it behind the nomsgpack build tag, so setting
the tag drops github.com/ugorji/go from the binary.

Reduces outpost-server from 72.8 MB to 66.5 MB (-8.7%), measured by
building both ways with release ldflags.

Applied to every build path so release, make and Docker binaries stay
consistent.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
---
 Makefile                 | 12 ++++++------
 build/.goreleaser.yaml   |  8 ++++++++
 build/Dockerfile.example |  4 ++--
 3 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index a71f226dd..337767da2 100644
--- a/Makefile
+++ b/Makefile
@@ -12,23 +12,23 @@ build:
 		exit 1; \
 	fi
 	@echo "Building all binaries..."
-	go build -o bin/outpost ./cmd/outpost
-	go build -o bin/outpost-server ./cmd/outpost-server
+	go build -tags nomsgpack -o bin/outpost ./cmd/outpost
+	go build -tags nomsgpack -o bin/outpost-server ./cmd/outpost-server
 	@echo "Binaries built in ./bin/"
 
 build/goreleaser:
 	goreleaser release -f ./build/.goreleaser.yaml --snapshot --clean
 
 build/outpost:
-	go build -o bin/outpost ./cmd/outpost
+	go build -tags nomsgpack -o bin/outpost ./cmd/outpost
 
 build/server:
-	go build -o bin/outpost-server ./cmd/outpost-server
+	go build -tags nomsgpack -o bin/outpost-server ./cmd/outpost-server
 
 install:
 	@echo "Installing binaries to GOPATH/bin..."
-	go install ./cmd/outpost
-	go install ./cmd/outpost-server
+	go install -tags nomsgpack ./cmd/outpost
+	go install -tags nomsgpack ./cmd/outpost-server
 	@echo "Installation complete"
 
 clean:
diff --git a/build/.goreleaser.yaml b/build/.goreleaser.yaml
index 82ac9cdcf..f3420b98f 100644
--- a/build/.goreleaser.yaml
+++ b/build/.goreleaser.yaml
@@ -19,6 +19,8 @@ builds:
       - -s -w
       - -X github.com/hookdeck/outpost/internal/version.version={{.Version}}
       - -X github.com/hookdeck/outpost/internal/version.commit={{.FullCommit}}
+    flags:
+      - -tags=nomsgpack
     binary: outpost
     env:
       - CGO_ENABLED=0
@@ -32,6 +34,8 @@ builds:
       - -s -w
       - -X github.com/hookdeck/outpost/internal/version.version={{.Version}}
       - -X github.com/hookdeck/outpost/internal/version.commit={{.FullCommit}}
+    flags:
+      - -tags=nomsgpack
     binary: outpost
     env:
       - CGO_ENABLED=0
@@ -47,6 +51,8 @@ builds:
       - -s -w
       - -X github.com/hookdeck/outpost/internal/version.version={{.Version}}
       - -X github.com/hookdeck/outpost/internal/version.commit={{.FullCommit}}
+    flags:
+      - -tags=nomsgpack
     binary: outpost-server
     env:
       - CGO_ENABLED=0
@@ -60,6 +66,8 @@ builds:
       - -s -w
       - -X github.com/hookdeck/outpost/internal/version.version={{.Version}}
       - -X github.com/hookdeck/outpost/internal/version.commit={{.FullCommit}}
+    flags:
+      - -tags=nomsgpack
     binary: outpost-server
     env:
       - CGO_ENABLED=0
diff --git a/build/Dockerfile.example b/build/Dockerfile.example
index 8190d73b1..0a357df9a 100644
--- a/build/Dockerfile.example
+++ b/build/Dockerfile.example
@@ -19,8 +19,8 @@ RUN go mod download
 COPY . .
 
 # Build all binaries
-RUN go build -o ./bin/outpost ./cmd/outpost && \
-    go build -o ./bin/outpost-server ./cmd/outpost-server
+RUN go build -tags nomsgpack -o ./bin/outpost ./cmd/outpost && \
+    go build -tags nomsgpack -o ./bin/outpost-server ./cmd/outpost-server
 
 # Stage 1
 # Get busybox shell for entrypoint script