add upx for binary compression

.github/workflows/release.yml

@@ -23,6 +23,10 @@ jobs:
         with:
           go-version: '1.24'
           cache: true
+      - name: Install UPX
+        uses: crazy-max/ghaction-upx@v3
+        with:
+          install-only: true
       # More assembly might be required: Docker logins, GPG, etc. It all depends
       # on your needs.
       - uses: goreleaser/goreleaser-action@v6

.github/workflows/trigger-nightly.yml

@@ -3,7 +3,7 @@ name: Trigger nightly build
 on:
   schedule:
     # * is a special character in YAML, so you have to quote this string
-    - cron:  '30 15 * * *'
+    - cron:  '00 15 * * *'
   workflow_dispatch:
 
 jobs:

.goreleaser.yaml

@@ -38,6 +38,67 @@ builds:
     ldflags:
       - "-s -w -X 'main.version={{ .Tag }}'"
 
+upx:
+  - # Whether to enable it or not.
+    #
+    # Templates: allowed.
+    enabled: true
+
+    # Filter by build ID.
+    # ids: [build1, build2]
+
+    # Filter by GOOS.
+    goos: [linux]
+
+    # Filter by GOARCH.
+    goarch: [arm, arm64, amd64]
+
+    # Filter by GOARM.
+    # goarm: [8]
+
+    # Filter by GOAMD64.
+    # goamd64: [v1]
+
+    # Compress argument.
+    # Valid options are from '1' (faster) to '9' (better), and 'best'.
+    compress: best
+
+    # Whether to try LZMA (slower).
+    lzma: true
+
+    # Whether to try all methods and filters (slow).
+    brute: true
+
+  - # Whether to enable it or not.
+    #
+    # Templates: allowed.
+    enabled: true
+
+    # Filter by build ID.
+    # ids: [build1, build2]
+
+    # Filter by GOOS.
+    goos: [windows]
+
+    # Filter by GOARCH.
+    goarch: [amd64]
+
+    # Filter by GOARM.
+    # goarm: [8]
+
+    # Filter by GOAMD64.
+    # goamd64: [v1]
+
+    # Compress argument.
+    # Valid options are from '1' (faster) to '9' (better), and 'best'.
+    compress: best
+
+    # Whether to try LZMA (slower).
+    lzma: true
+
+    # Whether to try all methods and filters (slow).
+    brute: true
+
 archives:
   - format: tar.gz
     # use zip for windows archives

Dockerfile

@@ -2,6 +2,9 @@ FROM --platform=$BUILDPLATFORM tonistiigi/xx:1.6.1 AS xx
 
 FROM --platform=$BUILDPLATFORM golang:1.24-alpine3.22 AS builder
 
+# add upx for binary compression
+RUN apk add --no-cache upx || echo "upx not found"
+
 COPY --from=xx / /
 
 ARG TARGETPLATFORM
@@ -17,8 +20,9 @@ WORKDIR /app
 COPY . .
 
 RUN cd cmd/gost && \
-    xx-go build && \
+    xx-go build -ldflags "-s -w" && \
-    xx-verify gost
+    xx-verify gost && \
+    { upx --best gost || true; }
 
 FROM alpine:3.22