Use buildx create+build

This makes it easier to support multi-platform builds in the future, and explicitly sets the currently used platform (linux/amd64). Note that --load is only available for single-platform builds. Will need to adjust this for future multi-platform builds. Co-authored-by: Thomas Sibley <[email protected]>
nextstrain · Jul 16, 2022 · fac834e · fac834e
1 parent b30b5e8
commit fac834e
Showing 1 changed file with 20 additions and 2 deletions.
diff --git a/devel/build b/devel/build
@@ -19,19 +19,37 @@ export GIT_REVISION=$(git describe --tags --abbrev=40 --always --dirty || true)
 # Calling `docker run nextstrain/base` will still only pull down the small base
 # image rather than pulling down the larger nextstrain/base-builder image.
 
-docker build \
+platform=linux/amd64
+
+# `buildx create` is necessary to use a driver that supports multi-platform
+# images.
+builder=nextstrain-builder
+
+if ! docker buildx inspect "$builder" &>/dev/null; then
+    docker buildx create --name "$builder" --driver docker-container
+fi
+
+docker buildx build \
+    --builder "$builder" \
+    --platform $platform \
     --build-arg CACHE_DATE \
     --build-arg GIT_REVISION \
     --cache-from nextstrain/base-builder \
     --cache-from nextstrain/base \
+    --cache-to type=inline \
     --tag nextstrain/base-builder \
+    --load \
     --target builder \
     .
 
-docker build \
+docker buildx build \
+    --builder "$builder" \
+    --platform $platform \
     --build-arg CACHE_DATE \
     --build-arg GIT_REVISION \
     --cache-from nextstrain/base-builder \
     --cache-from nextstrain/base \
+    --cache-to type=inline \
     --tag nextstrain/base \
+    --load \
     .