Make local build script spin up a temporary registry

.github/workflows/build.yml

@@ -121,6 +121,7 @@ jobs:
         run: |
           IMG="ghcr.io/${GITHUB_REPOSITORY,,}/${{ matrix.target }}-${{ matrix.variant }}"
           echo "::set-output name=name::${IMG/ /-}"
+          echo "::set-output name=gh_repo::${GITHUB_REPOSITORY,,}"
       - name: Stop Commands
         run: T="$(echo -n ${{ github.token }} | sha256sum | head -c 64)" && echo -e "::add-mask::${T}\n::stop-commands::${T}"
       - name: Build target base image
@@ -132,6 +133,8 @@ jobs:
           tags: ${{ steps.imagename.outputs.name }}:latest
           cache-to: type=registry,mode=max,ref=${{ steps.imagename.outputs.name }}:cache
           cache-from: type=registry,ref=${{ steps.imagename.outputs.name }}:cache
+          build-args: |
+            GH_REPO=ghcr.io/${{ steps.imagename.outputs.gh_repo }}
   build_ffmpeg:
     name: Build ffmpeg
     if: ${{ ( github.event.inputs.buildOnly == 'true' && !cancelled() ) || success() }}

images/base-linux64/Dockerfile

@@ -1,5 +1,5 @@
-ARG GH_REPO=btbn/ffmpeg-builds
-FROM ghcr.io/$GH_REPO/base:latest
+ARG GH_REPO=ghcr.io/btbn/ffmpeg-builds
+FROM $GH_REPO/base:latest
 
 RUN --mount=src=ct-ng-config,dst=/.config \
     git clone --filter=blob:none https://github.com/crosstool-ng/crosstool-ng.git /ct-ng && cd /ct-ng && \

images/base-linuxarm64/Dockerfile

@@ -1,5 +1,5 @@
-ARG GH_REPO=btbn/ffmpeg-builds
-FROM ghcr.io/$GH_REPO/base:latest
+ARG GH_REPO=ghcr.io/btbn/ffmpeg-builds
+FROM $GH_REPO/base:latest
 
 RUN --mount=src=ct-ng-config,dst=/.config \
     git clone --filter=blob:none https://github.com/crosstool-ng/crosstool-ng.git /ct-ng && cd /ct-ng && \

images/base-win32/Dockerfile

@@ -1,5 +1,5 @@
-ARG GH_REPO=btbn/ffmpeg-builds
-FROM ghcr.io/$GH_REPO/base:latest
+ARG GH_REPO=ghcr.io/btbn/ffmpeg-builds
+FROM $GH_REPO/base:latest
 
 RUN --mount=src=ct-ng-config,dst=/.config \
     git clone --filter=blob:none https://github.com/crosstool-ng/crosstool-ng.git /ct-ng && cd /ct-ng && \

images/base-win64/Dockerfile

@@ -1,5 +1,5 @@
-ARG GH_REPO=btbn/ffmpeg-builds
-FROM ghcr.io/$GH_REPO/base:latest
+ARG GH_REPO=ghcr.io/btbn/ffmpeg-builds
+FROM $GH_REPO/base:latest
 
 RUN --mount=src=ct-ng-config,dst=/.config \
     git clone --filter=blob:none https://github.com/crosstool-ng/crosstool-ng.git /ct-ng && cd /ct-ng && \

makeimage.sh

@@ -14,21 +14,31 @@ docker buildx inspect ffbuilder &>/dev/null || docker buildx create \
     --bootstrap \
     --name ffbuilder \
     --config "$TMPCFG" \
+    --driver-opt network=host \
     --driver-opt env.BUILDKIT_STEP_LOG_MAX_SIZE=-1 \
     --driver-opt env.BUILDKIT_STEP_LOG_MAX_SPEED=-1
 
 if [[ -z "$QUICKBUILD" ]]; then
+    docker container inspect ffbuildreg &>/dev/null || \
+        docker run --rm -d -p 127.0.0.1:0:5000 --name ffbuildreg registry:2
+    LOCAL_REG_PORT="$(docker container inspect --format='{{range $p, $conf := .NetworkSettings.Ports}}{{(index $conf 0).HostPort}}{{end}}' ffbuildreg)"
+    LOCAL_ROOT="127.0.0.1:${LOCAL_REG_PORT}/local"
+    trap "rm -f '$TMPCFG'; docker container stop ffbuildreg" EXIT
+
     if grep "FROM.*base.*" "images/base-${TARGET}/Dockerfile" >/dev/null 2>&1; then
         docker buildx --builder ffbuilder build \
             --cache-from=type=local,src=.cache/"${BASE_IMAGE/:/_}" \
             --cache-to=type=local,mode=max,dest=.cache/"${BASE_IMAGE/:/_}" \
-            --load --tag "$BASE_IMAGE" images/base
+            --push --tag "${LOCAL_ROOT}/base:latest" images/base
     fi
 
     docker buildx --builder ffbuilder build \
         --cache-from=type=local,src=.cache/"${TARGET_IMAGE/:/_}" \
         --cache-to=type=local,mode=max,dest=.cache/"${TARGET_IMAGE/:/_}" \
-        --load --build-arg GH_REPO="$REPO" --tag "$TARGET_IMAGE" "images/base-${TARGET}"
+        --push --tag "${LOCAL_ROOT}/base-${TARGET}:latest" \
+        --build-arg GH_REPO="$LOCAL_ROOT" "images/base-${TARGET}"
+
+    export REGISTRY_OVERRIDE="127.0.0.1:${LOCAL_REG_PORT}" GITHUB_REPOSITORY="local"
 fi
 
 ./generate.sh "$TARGET" "$VARIANT" "${ADDINS[@]}"

util/vars.sh

@@ -32,7 +32,7 @@ done
 
 REPO="${GITHUB_REPOSITORY:-btbn/ffmpeg-builds}"
 REPO="${REPO,,}"
-REGISTRY="ghcr.io"
+REGISTRY="${REGISTRY_OVERRIDE:-ghcr.io}"
 BASE_IMAGE="${REGISTRY}/${REPO}/base:latest"
 TARGET_IMAGE="${REGISTRY}/${REPO}/base-${TARGET}:latest"
 IMAGE="${REGISTRY}/${REPO}/${TARGET}-${VARIANT}${ADDINS_STR:+-}${ADDINS_STR}:latest"