Add nri-memtierd plugin

The nri-memtierd plugin toggles swapping, starts/stops memtierd processes that track and manage memory of containers. Signed-off-by: Antti Kervinen <[email protected]> Signed-off-by: Luukas Makila <[email protected]>
containers · Sep 27, 2023 · a82ab0c · a82ab0c
1 parent 90dc2e5
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diff --git a/cmd/plugins/memtierd/Dockerfile b/cmd/plugins/memtierd/Dockerfile
@@ -0,0 +1,32 @@
+ARG GO_VERSION=1.21
+
+FROM golang:${GO_VERSION}-bullseye as builder
+
+WORKDIR /go/builder
+
+RUN GOBIN=/bin go install github.com/intel/memtierd/cmd/memtierd@latest
+
+# Fetch go dependencies in a separate layer for caching
+COPY go.mod go.sum ./
+COPY pkg/topology/ pkg/topology/
+RUN go mod download
+
+# Build nri-memtierd
+COPY . .
+
+RUN make clean
+RUN make PLUGINS=nri-memtierd build-plugins-static
+
+# FROM gcr.io/distroless/static
+# ENV PATH=/bin
+# TODO: DEBUG why exec.Command("memtierd", "-c", ...).Start() fails on distroless:
+# execve("/bin/memtierd", ["/bin/memtierd", "-c", "", "-config", "/host/tmp/memtierd/default/test-"...], 0xc000146000 /* 38 vars */) = -1 ENOENT (No such file or directory)
+# However, execve works on busybox base image, so let's use it until
+# the real problem is solved.
+
+FROM busybox
+
+COPY --from=builder /go/builder/build/bin/nri-memtierd /bin/nri-memtierd
+COPY --from=builder /bin/memtierd /bin/memtierd
+
+ENTRYPOINT ["/bin/nri-memtierd", "--idx", "45"]