feat: initial implementation of evpn gw cni

Signed-off-by: Dimitrios Markou <dimitrios.markou@ericsson.com>

Dockerfile

@@ -1,25 +1,26 @@
 # SPDX-License-Identifier: Apache-2.0
 # Copyright (c) 2022-2023 Dell Inc, or its subsidiaries.
+# Copyright (C) 2023 Network Plumping Working Group
+# Copyright (C) 2023 Nordix Foundation.
 
-FROM docker.io/library/golang:1.21.6-alpine as builder
+FROM golang:1.20-alpine3.19 as builder
 
-WORKDIR /app
+COPY . /usr/src/evpn-gw-cni
 
-# Download necessary Go modules
-COPY go.mod ./
-COPY go.sum ./
-RUN go mod download
+ENV HTTP_PROXY $http_proxy
+ENV HTTPS_PROXY $https_proxy
 
-# build an app
-COPY cmd/ cmd/
-# COPY pkg/ pkg/
-RUN go build -v -o /opi-gateway-evpn-cni /app/cmd/...
+WORKDIR /usr/src/evpn-gw-cni
+RUN apk add --no-cache --virtual build-dependencies build-base=~0.5 && \
+    make clean && \
+    make build
 
-# second stage to reduce image size
 FROM alpine:3.19
-RUN apk add --no-cache --no-check-certificate hwdata && rm -rf /var/cache/apk/*
-COPY --from=builder /opi-gateway-evpn-cni /
-COPY --from=docker.io/fullstorydev/grpcurl:v1.8.9-alpine /bin/grpcurl /usr/local/bin/
-EXPOSE 50051 8082
-CMD [ "/opi-gateway-evpn-cni", "-grpc_port=50051", "-http_port=8082" ]
-HEALTHCHECK CMD grpcurl -plaintext localhost:50051 list || exit 1
+COPY --from=builder /usr/src/evpn-gw-cni/build/evpn-gw /usr/bin/
+WORKDIR /
+
+LABEL io.k8s.display-name="EVPN GW CNI"
+
+COPY ./images/entrypoint.sh /
+
+ENTRYPOINT ["/entrypoint.sh"]

Makefile

@@ -1,51 +1,168 @@
 # SPDX-License-Identifier: Apache-2.0
 # Copyright (c) 2023 Dell Inc, or its subsidiaries.
+# Copyright (C) 2023 Network Plumping Working Group
+# Copyright (C) 2023 Nordix Foundation.
+# Copyright (c) 2024 Ericsson AB.
 
-ROOT_DIR='.'
-PROJECTNAME=$(shell basename "$(PWD)")
+#
+# Credit:
+#   This makefile was adapted from: https://github.com/vincentbernat/hellogopher/blob/feature/glide/Makefile
+#
 
-# Make is verbose in Linux. Make it silent.
-MAKEFLAGS += --silent
+# This Makefile is based on: https://github.com/k8snetworkplumbingwg/sriov-cni/tree/v2.7.0
 
-compile: get build
+# Package related
+BINARY_NAME=evpn-gw
+PACKAGE=opi-gateway-evpn-cni
+ORG_PATH=github.com/opiproject
+REPO_PATH=$(ORG_PATH)/$(PACKAGE)
+GOPATH=$(CURDIR)/.gopath
+GOBIN=$(CURDIR)/bin
+BUILDDIR=$(CURDIR)/build
+BASE=$(GOPATH)/src/$(REPO_PATH)
+GOFILES = $(shell find . -name *.go | grep -vE "(\/vendor\/)|(_test.go)")
+PKGS     = $(or $(PKG),$(shell cd $(BASE) && env GOPATH=$(GOPATH) $(GO) list ./... | grep -v "^$(PACKAGE)/vendor/"))
+TESTPKGS = $(shell env GOPATH=$(GOPATH) $(GO) list -f '{{ if or .TestGoFiles .XTestGoFiles }}{{ .ImportPath }}{{ end }}' $(PKGS))
 
-build:
-	@echo "  >  Building binaries..."
-	@CGO_ENABLED=0 go build -o ${PROJECTNAME} ./cmd/...
+export GOPATH
+export GOBIN
+export GO111MODULE=on
+# Docker
+IMAGEDIR=$(BASE)/images
+DOCKERFILE=$(CURDIR)/Dockerfile
+TAG=ghcr.io/opiproject/opi-gateway-evpn-cni
+# Accept proxy settings for docker 
+DOCKERARGS=
+ifdef HTTP_PROXY
+	DOCKERARGS += --build-arg http_proxy=$(HTTP_PROXY)
+endif
+ifdef HTTPS_PROXY
+	DOCKERARGS += --build-arg https_proxy=$(HTTPS_PROXY)
+endif
 
-get:
-	@echo "  >  Checking if there are any missing dependencies..."
-	@CGO_ENABLED=0 go get ./...
+# Go tools
+GO      = go
+GODOC   = godoc
+GOFMT   = gofmt
+TIMEOUT = 15
+V ?= 0
+Q = $(if $(filter 1,$V),,@)
 
-tools:
-	go get golang.org/x/tools/cmd/goimports
-	go get github.com/kisielk/errcheck
-	go get github.com/axw/gocov/gocov
-	go get github.com/matm/gocov-html
-	go get github.com/tools/godep
-	go get github.com/mitchellh/gox
-	go get github.com/golang/lint/golint
+.PHONY: all
+all: fmt lint build
 
-test:
-	@echo "  >  Running ginkgo test suites..."
-	# can replace with a recursive command ginkgo suites are defined for all packages
-	ginkgo grpc pkg
+$(BASE): ; $(info  Setting GOPATH...)
+	@mkdir -p $(dir $@)
+	@ln -sf $(CURDIR) $@
 
-vet:
-	@CGO_ENABLED=0 go vet -v ./...
+$(GOBIN):
+	@mkdir -p $@
 
-errors:
-	errcheck -ignoretests -blank ./...
+$(BUILDDIR): | $(BASE) ; $(info Creating build directory...)
+	@cd $(BASE) && mkdir -p $@
 
-lint:
-	golint ./...
+build: $(BUILDDIR)/$(BINARY_NAME) ; $(info Building $(BINARY_NAME)...) @ ## Build EVPN GW CNI plugin
+	$(info Done!)
 
-imports:
-	goimports -l -w .
+$(BUILDDIR)/$(BINARY_NAME): $(GOFILES) | $(BUILDDIR)
+	@cd $(BASE)/cmd/$(BINARY_NAME) && CGO_ENABLED=0 $(GO) build -o $(BUILDDIR)/$(BINARY_NAME) -tags no_openssl -v
 
-fmt:
-	@CGO_ENABLED=0 go fmt ./...
 
-mock-generate:
-	@echo "  >  Starting mock code generation..."
-	# Generate mocks for exported interfaces
+# Tools
+
+GOLANGCILINT = $(GOBIN)/golangci-lint
+$(GOLANGCILINT): | $(BASE) ; $(info  Installing golangci-lint...)
+	$Q go install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.52.2
+
+GOCOVMERGE = $(GOBIN)/gocovmerge
+$(GOCOVMERGE): | $(BASE) ; $(info  Building gocovmerge...)
+	$Q go install github.com/wadey/gocovmerge@latest
+
+GOCOV = $(GOBIN)/gocov
+$(GOCOV): | $(BASE) ; $(info  Building gocov...)
+	$Q go install github.com/axw/gocov/gocov@v1.1.0
+
+GOCOVXML = $(GOBIN)/gocov-xml
+$(GOCOVXML): | $(BASE) ; $(info  Building gocov-xml...)
+	$Q go install github.com/AlekSi/gocov-xml@latest
+
+GCOV2LCOV = $(GOBIN)/gcov2lcov
+$(GCOV2LCOV): | $(BASE) ; $(info  building gcov2lcov...)
+	$Q go install github.com/jandelgado/gcov2lcov@latest
+
+GO2XUNIT = $(GOBIN)/go2xunit
+$(GO2XUNIT): | $(BASE) ; $(info  Building go2xunit...)
+	$Q go install github.com/tebeka/go2xunit@latest
+
+
+# Tests
+
+TEST_TARGETS := test-default test-bench test-short test-verbose test-race
+.PHONY: $(TEST_TARGETS) test-xml check test tests
+test-bench:   ARGS=-run=__absolutelynothing__ -bench=. ## Run benchmarks
+test-short:   ARGS=-short        ## Run only short tests
+test-verbose: ARGS=-v            ## Run tests in verbose mode with coverage reporting
+test-race:    ARGS=-race         ## Run tests with race detector
+$(TEST_TARGETS): NAME=$(MAKECMDGOALS:test-%=%)
+$(TEST_TARGETS): test
+check test tests: fmt lint | $(BASE) ; $(info  Running $(NAME:%=% )tests...) @ ## Run tests
+	$Q cd $(BASE) && $(GO) test -timeout $(TIMEOUT)s $(ARGS) $(TESTPKGS)
+
+test-xml: fmt lint | $(BASE) $(GO2XUNIT) ; $(info  Running $(NAME:%=% )tests...) @ ## Run tests with xUnit output
+	$Q cd $(BASE) && 2>&1 $(GO) test -timeout 20s -v $(TESTPKGS) | tee test/tests.output
+	$(GO2XUNIT) -fail -input test/tests.output -output test/tests.xml
+
+COVERAGE_DIR = $(CURDIR)/test/coverage
+COVERAGE_MODE = atomic
+COVERAGE_PROFILE = $(COVERAGE_DIR)/profile.out
+COVERAGE_XML = $(COVERAGE_DIR)/coverage.xml
+COVERAGE_HTML = $(COVERAGE_DIR)/index.html
+.PHONY: test-coverage test-coverage-tools
+test-coverage-tools: | $(GOCOVMERGE) $(GOCOV) $(GOCOVXML) $(GCOV2LCOV)
+test-coverage: fmt test-coverage-tools | $(BASE) ; $(info  Running coverage tests...) @ ## Run coverage tests
+	$Q mkdir -p $(COVERAGE_DIR)/pkgs
+	$Q cd $(BASE) && for pkg in $(TESTPKGS); do \
+		$(GO) test \
+			-coverpkg=$(REPO_PATH)/... \
+			-covermode=$(COVERAGE_MODE) \
+			-coverprofile="$(COVERAGE_DIR)/pkgs/`echo $$pkg | tr "/" "-"`.cover" $$pkg ;\
+	done
+	$Q $(GOCOVMERGE) $(COVERAGE_DIR)/pkgs/*.cover > $(COVERAGE_PROFILE)
+	$Q $(GO) tool cover -html=$(COVERAGE_PROFILE) -o $(COVERAGE_HTML)
+	$Q $(GOCOV) convert $(COVERAGE_PROFILE) | $(GOCOVXML) > $(COVERAGE_XML)
+	$Q $(GCOV2LCOV) -infile $(COVERAGE_PROFILE) -outfile $(COVERAGE_DIR)/lcov.info
+
+.PHONY: lint
+lint: | $(BASE) $(GOLANGCILINT) ; $(info  Running golangci-lint...) @ ## Run golint on all source files
+	$Q $(GOLANGCILINT) run ./...
+
+.PHONY: fmt
+fmt: ; $(info  Running gofmt...) @ ## Run gofmt on all source files
+	@ret=0 && for d in $$($(GO) list -f '{{.Dir}}' ./... | grep -v /vendor/); do \
+		$(GOFMT) -l -w $$d/*.go || ret=$$? ; \
+	 done ; exit $$ret
+
+# Docker image
+# To pass proxy for Docker invoke it as 'make image HTTP_POXY=http://192.168.0.1:8080'
+.PHONY: image
+image: | $(BASE) ; $(info Building Docker image...) @ ## Build EVPN GW CNI docker image
+	@docker build -t $(TAG) -f $(DOCKERFILE)  $(CURDIR) $(DOCKERARGS)
+
+# Misc
+
+.PHONY: deps-update
+deps-update: ; $(info  Updating dependencies...) @ ## Update dependencies
+	@go mod tidy && go mod vendor
+
+.PHONY: clean
+clean: | $(BASE) ; $(info  Cleaning...) @ ## Cleanup everything
+	@cd $(BASE) && $(GO) clean --modcache --cache --testcache
+	@rm -rf $(GOPATH)
+	@rm -rf $(BUILDDIR)
+	@rm -rf $(GOBIN)
+	@rm -rf test/
+
+.PHONY: help
+help: ; @ ## Display this help message
+	@grep -E '^[ a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) | \
+		awk 'BEGIN {FS = ":.*?## "}; {printf "\033[36m%-15s\033[0m %s\n", $$1, $$2}'

NOTICE

@@ -0,0 +1,13 @@
+OPI GATEWAY EVPN CNI
+Copyright (C) 2023 Nordix Foundation.
+Copyright (c) 2024 Ericsson AB.
+
+This product includes software developed at
+Nordix Foundation (http://www.nordix.org).
+
+This project contains code developed by the participants of the Network Plumbing Working Group
+(https://github.com/k8snetworkplumbingwg/community)
+
+The getFileNamesFromPath function in
+utils/utils.go was created by NVIDIA CORPORATION & AFFILIATES (http://www.nvidia.com/)
+Copyright 2023 NVIDIA CORPORATION & AFFILIATES