first commit of docker sidecar plugin

Makefile

@@ -0,0 +1,5 @@
+all: sidecars
+
+sidecars:
+	CGO_ENABLED=1 GOOS=linux go build -o bin/docker-sd cmd/main.go
+

cmd/main.go

@@ -0,0 +1,73 @@
+package main
+
+import (
+	"context"
+	"net/http"
+	"strconv"
+
+	"github.com/sirupsen/logrus"
+	"github.com/virtual-kubelet/virtual-kubelet/log"
+
+	commonIL "github.com/intertwin-eu/interlink/pkg/common"
+	docker "github.com/intertwin-eu/interlink-docker-plugin/pkg/docker"
+	"github.com/intertwin-eu/interlink-docker-plugin/pkg/docker/gpustrategies"
+)
+
+func main() {
+	logger := logrus.StandardLogger()
+
+	interLinkConfig, err := commonIL.NewInterLinkConfig()
+	if err != nil {
+		log.L.Fatal(err)
+	}
+
+	if interLinkConfig.VerboseLogging {
+		logger.SetLevel(logrus.DebugLevel)
+	} else if interLinkConfig.ErrorsOnlyLogging {
+		logger.SetLevel(logrus.ErrorLevel)
+	} else {
+		logger.SetLevel(logrus.InfoLevel)
+	}
+
+	Ctx, cancel := context.WithCancel(context.Background())
+	defer cancel()
+	log.G(Ctx).Debug("Debug level: " + strconv.FormatBool(interLinkConfig.VerboseLogging))
+
+	var gpuManager gpustrategies.GPUManagerInterface
+	gpuManager = &gpustrategies.GPUManager{
+		GPUSpecsList: []gpustrategies.GPUSpecs{},
+		Ctx:          Ctx,
+	}
+
+	err = gpuManager.Init()
+	if err != nil {
+		log.G(Ctx).Fatal(err)
+	}
+
+	err = gpuManager.Discover()
+	if err != nil {
+		log.G(Ctx).Fatal(err)
+	}
+
+	err = gpuManager.Check()
+	if err != nil {
+		log.G(Ctx).Fatal(err)
+	}
+
+	SidecarAPIs := docker.SidecarHandler{
+		Config:     interLinkConfig,
+		Ctx:        Ctx,
+		GpuManager: gpuManager,
+	}
+
+	mutex := http.NewServeMux()
+	mutex.HandleFunc("/status", SidecarAPIs.StatusHandler)
+	mutex.HandleFunc("/create", SidecarAPIs.CreateHandler)
+	mutex.HandleFunc("/delete", SidecarAPIs.DeleteHandler)
+	mutex.HandleFunc("/getLogs", SidecarAPIs.GetLogsHandler)
+	err = http.ListenAndServe(":"+interLinkConfig.Sidecarport, mutex)
+
+	if err != nil {
+		log.G(Ctx).Fatal(err)
+	}
+}

docker/Dockerfile.sidecar-docker

@@ -0,0 +1,37 @@
+FROM golang:1.21 as build-stage
+
+WORKDIR /app
+COPY .. .
+RUN CGO_ENABLED=1 GOOS=linux go build -o bin/docker-sidecar cmd/main.go
+
+FROM bash:latest as bash-stage
+
+# Deploy the application binary into a lean image
+FROM docker:24.0-dind-rootless AS build-release-stage
+
+WORKDIR /
+
+COPY --from=build-stage /app/bin/docker-sidecar /sidecar/docker-sidecar
+
+# adding bash binary to be able to perform commands within the sidecar binary
+COPY --from=bash-stage /usr/local/bin/bash /bin 
+
+USER root:root
+
+ENV PATH "$PATH:/bin"
+
+#creating a simple startup script to start both docker rootless and the sidecar
+RUN echo -e '#!/bin/bash\ndockerd-entrypoint.sh & /sidecar/docker-sidecar' > /sidecar/startup-docker.sh
+RUN chmod +x /sidecar/startup-docker.sh
+RUN chmod -R 777 /sidecar
+
+ENV INTERLINKCONFIGPATH=/InterLinkConfig.yaml
+
+USER 1000:1000
+
+#setting up the path for the docker daemon
+ENV DOCKER_HOST=unix:///run/user/1000/docker.sock
+
+WORKDIR /sidecar
+
+ENTRYPOINT ["/sidecar/startup-docker.sh"]

go.mod

@@ -0,0 +1,71 @@
+module github.com/intertwin-eu/interlink
+
+go 1.21
+
+toolchain go1.21.3
+
+require (
+	github.com/containerd/containerd v1.7.15
+	gopkg.in/yaml.v2 v2.4.0
+	k8s.io/api v0.29.1
+	k8s.io/client-go v0.29.1
+)
+
+require (
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/NVIDIA/go-nvml v0.12.0-4 // indirect
+	github.com/alexellis/go-execute v0.6.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/docker v26.0.1+incompatible // indirect
+	github.com/docker/go-connections v0.5.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
+	github.com/felixge/httpsnoop v1.0.3 // indirect
+	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/gnostic-models v0.6.8 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc2.0.20221005185240-3a7f492d3f1b // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/sirupsen/logrus v1.9.3 // indirect
+	github.com/virtual-kubelet/virtual-kubelet v1.11.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.45.0 // indirect
+	go.opentelemetry.io/otel v1.22.0 // indirect
+	go.opentelemetry.io/otel/metric v1.22.0 // indirect
+	go.opentelemetry.io/otel/trace v1.22.0 // indirect
+	golang.org/x/mod v0.14.0 // indirect
+	golang.org/x/net v0.19.0 // indirect
+	golang.org/x/oauth2 v0.11.0 // indirect
+	golang.org/x/sys v0.16.0 // indirect
+	golang.org/x/term v0.15.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.16.1 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.33.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/apimachinery v0.29.1 // indirect
+	k8s.io/klog/v2 v2.110.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20231010175941-2dd684a91f00 // indirect
+	k8s.io/utils v0.0.0-20230726121419-3b25d923346b // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.4.1 // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)