diff --git a/.gitea/workflows/build-ubuntu.yml b/.gitea/workflows/build-ubuntu.yml
index 44ba2c9..b1ab728 100644
--- a/.gitea/workflows/build-ubuntu.yml
+++ b/.gitea/workflows/build-ubuntu.yml
@@ -63,12 +63,6 @@ jobs:
           path: src
       - name: Build
         run: |
-          echo -------------------
-          docker context show
-          echo -------------------
-          realpath src
-          echo -------------------
-          ls -ld "$(realpath src)"
           echo -------------------
           docker info --format 'Name={{.Name}} OperatingSystem={{.OperatingSystem}} DockerRootDir={{.DockerRootDir}}'
           echo -------------------
@@ -76,27 +70,41 @@ jobs:
           echo -------------------
           docker run --rm alpine sh -c 'echo daemon-container-can-run && pwd && ls -ld /workspace /workspace/daqbuf /workspace/daqbuf/build1 /workspace/daqbuf/build1/src 2>&1 || true'
           echo -------------------
+          cat >cf1 <<EOF
+          FROM $BUILDER_IMAGE
+          COPY src /data
+          WORKDIR /data
+          RUN cargo build --release
+          EOF
+          cat cf1
+          img1=$(docker build -f cf1 .)
+          echo img1 $img1
+          cid1=$(docker create --rm $img1)
+          echo cid1 $cid1
+          docker start --attach $cid1
+          mkdir -p artifacts
+          docker cp "$cid1:/data/target" artifacts/
+          docker image rm $img1
           echo -------------------
+          ls -l artifacts
           echo -------------------
-          ls ${{ gitea.workspace }}
+          ls -l artifacts/target
           echo -------------------
-          pwd
+          ls -l artifacts/target/release
           echo -------------------
-          ls -la
+          # cid=$(docker create --rm $BUILDER_IMAGE bash -c "cd /data && ls -la")
+          # echo cid: $cid
+          # docker cp $(realpath src)/. $cid:/data
+          # docker start -a $cid
+          # cid=$(docker create --rm $BUILDER_IMAGE bash -c "cd /data && cargo build --release")
+          # echo cid: $cid
+          # docker cp $(realpath src)/. $cid:/data
+          # docker start -a $cid
           echo -------------------
-          (cd src && pwd)
-          echo -------------------
-          (cd src && ls -la)
-          echo -------------------
-          cid=$(docker create --rm $BUILDER_IMAGE bash -c "cd /data && ls -la")
-          echo cid: $cid
-          docker cp $(realpath src)/. $cid:/data
-          docker start -a $cid
-          cid=$(docker create --rm $BUILDER_IMAGE bash -c "cd /data && cargo build --release")
-          echo cid: $cid
-          docker cp $(realpath src)/. $cid:/data
-          docker start -a $cid
           docker container ls -a
+          echo -------------------
+          docker image ls -a
+          echo -------------------
       - name: View
         run: |
           ls -l src/target/release