From 1cd00b6de246211b99956b483e72562a50125ff7 Mon Sep 17 00:00:00 2001
From: Markus Lehtonen <markus.lehtonen@intel.com>
Date: Wed, 6 Aug 2025 17:00:31 +0300
Subject: [PATCH] plugins: add Dockerfile for building images

Add a generic dockerfile for building container images of the sample
plugins. The build command creates statically linked binaries and the
resulting images are minimal, based on scratch base image.

Signed-off-by: Markus Lehtonen <markus.lehtonen@intel.com>
---
 .dockerignore      |  1 +
 plugins/Dockerfile | 41 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 .dockerignore
 create mode 100644 plugins/Dockerfile

diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..567609b
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1 @@
+build/
diff --git a/plugins/Dockerfile b/plugins/Dockerfile
new file mode 100644
index 0000000..11f0b60
--- /dev/null
+++ b/plugins/Dockerfile
@@ -0,0 +1,41 @@
+#   Copyright The containerd Authors.
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+
+#       http://www.apache.org/licenses/LICENSE-2.0
+
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+ARG GO_VERSION=1.24
+
+FROM golang:${GO_VERSION}-bullseye AS builder
+ARG PLUGIN
+
+WORKDIR /go/src
+
+# Cache dependencies in a separate layer
+COPY go.mod go.sum .
+RUN --mount=type=cache,target=/go/pkg/mod/ go mod download
+
+# Build
+COPY . .
+
+RUN --mount=type=cache,target=/go/pkg/mod/ \
+    make /go/src/build/bin/${PLUGIN} \
+    GO_BUILD="CGO_ENABLED=0 go build -ldflags '-extldflags=-static'"
+
+# Construct final image
+FROM scratch
+ARG PLUGIN
+
+COPY --from=builder /go/src/build/bin/${PLUGIN} /bin/plugin
+
+ENV NRI_PLUGIN_NAME=${PLUGIN}
+
+ENTRYPOINT ["/bin/plugin"]