tetragon-rthooks: add Dockerfile

Signed-off-by: Kornilios Kourtis <[email protected]>

Dockerfile.rthooks

@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: Apache-2.0
+
+ARG GOLANG_IMAGE=docker.io/library/golang:1.22.4@sha256:c2010b9c2342431a24a2e64e33d9eb2e484af49e72c820e200d332d214d5e61f
+ARG BASE_IMAGE=docker.io/library/alpine:3.20.0@sha256:77726ef6b57ddf65bb551896826ec38bc3e53f75cdde31354fbffb4f25238ebd
+
+# BUILDPLATFORM is an automatic platform ARG enabled by Docker BuildKit.
+# Represents the plataform where the build is happening, do not mix with
+# TARGETARCH
+FROM --platform=${BUILDPLATFORM} ${GOLANG_IMAGE} as builder
+# TARGETOS is an automatic platform ARG enabled by Docker BuildKit.
+ARG TARGETOS
+# TARGETARCH is an automatic platform ARG enabled by Docker BuildKit.
+ARG TARGETARCH
+ARG NOSTRIP
+WORKDIR /go/src/github.com/cilium/tetragon
+RUN --mount=type=bind,readwrite,target=/go/src/github.com/cilium/tetragon \
+    --mount=target=/root/.cache,type=cache \
+    --mount=target=/go/pkg/mod,type=cache \
+    make GOARCH=${TARGETARCH} tetragon-oci-hook tetragon-oci-hook-setup tetragon-nri-hook \
+    && mkdir -p /out/${TARGETOS}/${TARGETARCH}/usr/bin \
+    && mv ./contrib/tetragon-rthooks/tetragon-oci-hook       /out/${TARGETOS}/${TARGETARCH}/usr/bin \
+    && mv ./contrib/tetragon-rthooks/tetragon-oci-hook-setup /out/${TARGETOS}/${TARGETARCH}/usr/bin \
+    && mv ./contrib/tetragon-rthooks/tetragon-nri-hook       /out/${TARGETOS}/${TARGETARCH}/usr/bin
+
+FROM ${BASE_IMAGE} as image
+# TARGETOS is an automatic platform ARG enabled by Docker BuildKit.
+ARG TARGETOS
+# TARGETARCH is an automatic platform ARG enabled by Docker BuildKit.
+ARG TARGETARCH
+LABEL maintainer="[email protected]"
+COPY --from=builder /out/${TARGETOS}/${TARGETARCH}/usr/bin/tetragon-oci-hook       /usr/bin/
+COPY --from=builder /out/${TARGETOS}/${TARGETARCH}/usr/bin/tetragon-oci-hook-setup /usr/bin/
+COPY --from=builder /out/${TARGETOS}/${TARGETARCH}/usr/bin/tetragon-nri-hook       /usr/bin/
+WORKDIR /