try a docker arg

.github/workflows/go.yml

@@ -23,9 +23,6 @@ jobs:
     - name: Test
       run: go test ./...
 
-    - name: Setup
-      run: mkdir -p bin/linux && cp bin/webapp bin/linux_amd64/webapp
-
     - name: Get shortsha
       id: vars
       run: echo "sha_short=$(git rev-parse --short HEAD)" >> $GITHUB_OUTPUT
@@ -38,3 +35,4 @@ jobs:
         project_id: ian-rose
         image_name: us-central1-docker.pkg.dev/ian-rose/docker-1/webapp
         image_tag: latest,${{ steps.vars.outputs.sha_short }}
+        build_args: BIN=bin/webapp

Dockerfile

@@ -1,8 +1,9 @@
 FROM debian:bullseye-slim
+ARG BIN
 WORKDIR /root/
 RUN apt-get update
 RUN apt-get install -y ca-certificates
 
 # make cgo happy, see https://github.com/mattn/go-sqlite3/issues/855#issuecomment-1496136603
 RUN apt-get install -y build-essential
-COPY bin/linux_amd64/webapp /root
+COPY $BIN /root

scripts/deploy.sh

@@ -7,7 +7,7 @@ set -e
 
 make webapp-linux
 
-docker buildx build --platform linux/amd64 -t us-central1-docker.pkg.dev/ian-rose/docker-1/webapp:latest .
+docker buildx build --platform linux/amd64 --build-arg BIN=bin/linux_amd64/webapp -t us-central1-docker.pkg.dev/ian-rose/docker-1/webapp:latest .
 #docker build -t us-central1-docker.pkg.dev/ian-rose/docker-1/webapp:latest .
 docker push us-central1-docker.pkg.dev/ian-rose/docker-1/webapp:latest