• k8s-ingress 编译启动链路


    1、编译可执行类

    make 根据 Makefile 的描述找到build脚本

    # Copyright 2017 The Kubernetes 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.
    
    # Add the following 'help' target to your Makefile
    # And add help text after each target name starting with '##'
    
    .DEFAULT_GOAL:=help
    
    .EXPORT_ALL_VARIABLES:
    
    ifndef VERBOSE
    .SILENT:
    endif
    
    # set default shell
    SHELL=/bin/bash -o pipefail -o errexit
    
    # Use the 0.0 tag for testing, it shouldn't clobber any release builds
    TAG ?= $(shell cat TAG)
    
    # e2e settings
    # Allow limiting the scope of the e2e tests. By default run everything
    FOCUS ?= .*
    # number of parallel test
    E2E_NODES ?= 7
    # run e2e test suite with tests that check for memory leaks? (default is false)
    E2E_CHECK_LEAKS ?=
    
    REPO_INFO ?= $(shell git config --get remote.origin.url)
    COMMIT_SHA ?= git-$(shell git rev-parse --short HEAD)
    BUILD_ID ?= "UNSET"
    
    PKG = k8s.io/ingress-nginx
    
    HOST_ARCH = $(shell which go >/dev/null 2>&1 && go env GOARCH)
    ARCH ?= $(HOST_ARCH)
    ifeq ($(ARCH),)
        $(error mandatory variable ARCH is empty, either set it when calling the command or make sure 'go env GOARCH' works)
    endif
    
    REGISTRY ?= gcr.io/k8s-staging-ingress-nginx
    
    BASE_IMAGE ?= k8s.gcr.io/ingress-nginx/nginx:v20210809-g98288bc3c@sha256:f9363669cf26514c9548c1fe4f8f4e2f58dfb76616bcd638a0ff7f0ec3457c17
    
    GOARCH=$(ARCH)
    
    help:  ## Display this help
        @awk 'BEGIN {FS = ":.*##"; printf "
    Usage:
      make 33[36m<target>33[0m
    "} /^[a-zA-Z0-9_-]+:.*?##/ { printf "  33[36m%-15s33[0m %s
    ", $$1, $$2 } /^##@/ { printf "
    33[1m%s33[0m
    ", substr($$0, 5) } ' $(MAKEFILE_LIST)
    
    .PHONY: image
    image: clean-image ## Build image for a particular arch.
        echo "Building docker image ($(ARCH))..."
        @docker build 
            --no-cache 
            --build-arg BASE_IMAGE="$(BASE_IMAGE)" 
            --build-arg VERSION="$(TAG)" 
            --build-arg TARGETARCH="$(ARCH)" 
            --build-arg COMMIT_SHA="$(COMMIT_SHA)" 
            --build-arg BUILD_ID="$(BUILD_ID)" 
            -t $(REGISTRY)/controller:$(TAG) rootfs
    
    .PHONY: clean-image
    clean-image: ## Removes local image
        echo "removing old image $(REGISTRY)/controller:$(TAG)"
        @docker rmi -f $(REGISTRY)/controller:$(TAG) || true
    
    .PHONY: build
    build:  ## Build ingress controller, debug tool and pre-stop hook.
        @build/run-in-docker.sh 
            PKG=$(PKG) 
            ARCH=$(ARCH) 
            COMMIT_SHA=$(COMMIT_SHA) 
            REPO_INFO=$(REPO_INFO) 
            TAG=$(TAG) 
            GOBUILD_FLAGS=$(GOBUILD_FLAGS) 
            build/build.sh
    
    .PHONY: build-plugin
    build-plugin:  ## Build ingress-nginx krew plugin.
        @build/run-in-docker.sh 
            PKG=$(PKG) 
            ARCH=$(ARCH) 
            COMMIT_SHA=$(COMMIT_SHA) 
            REPO_INFO=$(REPO_INFO) 
            TAG=$(TAG) 
            GOBUILD_FLAGS=$(GOBUILD_FLAGS) 
            build/build-plugin.sh
    
    .PHONY: clean
    clean: ## Remove .gocache directory.
        rm -rf bin/ .gocache/ .cache/
    
    .PHONY: static-check
    static-check: ## Run verification script for boilerplate, codegen, gofmt, golint, lualint and chart-lint.
        @build/run-in-docker.sh 
            hack/verify-all.sh
    
    .PHONY: test
    test:  ## Run go unit tests.
        @build/run-in-docker.sh 
            PKG=$(PKG) 
            ARCH=$(ARCH) 
            COMMIT_SHA=$(COMMIT_SHA) 
            REPO_INFO=$(REPO_INFO) 
            TAG=$(TAG) 
            GOBUILD_FLAGS=$(GOBUILD_FLAGS) 
            build/test.sh
    
    .PHONY: lua-test
    lua-test: ## Run lua unit tests.
        @build/run-in-docker.sh 
            BUSTED_ARGS=$(BUSTED_ARGS) 
            build/test-lua.sh
    
    .PHONY: e2e-test
    e2e-test:  ## Run e2e tests (expects access to a working Kubernetes cluster).
        @build/run-e2e-suite.sh
    
    .PHONY: e2e-test-binary
    e2e-test-binary:  ## Build binary for e2e tests.
        @build/run-in-docker.sh 
            ginkgo build ./test/e2e
    
    .PHONY: print-e2e-suite
    print-e2e-suite: e2e-test-binary ## Prints information about the suite of e2e tests.
        @build/run-in-docker.sh 
            hack/print-e2e-suite.sh
    
    .PHONY: vet
    vet:
        @go vet $(shell go list ${PKG}/internal/... | grep -v vendor)
    
    .PHONY: check_dead_links
    check_dead_links: ## Check if the documentation contains dead links.
        @docker run -t 
          -v $$PWD:/tmp aledbf/awesome_bot:0.1 
          --allow-dupe 
          --allow-redirect $(shell find $$PWD -mindepth 1 -name "*.md" -printf '%P
    ' | grep -v vendor | grep -v Changelog.md)
    
    .PHONY: dev-env
    dev-env:  ## Starts a local Kubernetes cluster using kind, building and deploying the ingress controller.
        @build/dev-env.sh
    
    .PHONY: dev-env-stop
    dev-env-stop: ## Deletes local Kubernetes cluster created by kind.
        @kind delete cluster --name ingress-nginx-dev
    
    .PHONY: live-docs
    live-docs: ## Build and launch a local copy of the documentation website in http://localhost:8000
        @docker build -t ingress-nginx-docs .github/actions/mkdocs
        @docker run --rm -it 
            -p 8000:8000 
            -v ${PWD}:/docs 
            --entrypoint mkdocs 
            ingress-nginx-docs serve --dev-addr=0.0.0.0:8000
    
    .PHONY: misspell
    misspell:  ## Check for spelling errors.
        @go get github.com/client9/misspell/cmd/misspell
        misspell 
            -locale US 
            -error 
            cmd/* internal/* deploy/* docs/* design/* test/* README.md
    
    .PHONY: kind-e2e-test
    kind-e2e-test:  ## Run e2e tests using kind.
        @test/e2e/run.sh
    
    .PHONY: kind-e2e-chart-tests
    kind-e2e-chart-tests: ## Run helm chart e2e tests
        @test/e2e/run-chart-test.sh
    
    .PHONY: run-ingress-controller
    run-ingress-controller: ## Run the ingress controller locally using a kubectl proxy connection.
        @build/run-ingress-controller.sh
    
    .PHONY: ensure-buildx
    ensure-buildx:
        ./hack/init-buildx.sh
    
    .PHONY: show-version
    show-version:
        echo -n $(TAG)
    
    PLATFORMS ?= amd64 arm arm64 s390x
    
    EMPTY :=
    SPACE := $(EMPTY) $(EMPTY)
    COMMA := ,
    
    .PHONY: release # Build a multi-arch docker image
    release: ensure-buildx clean
        echo "Building binaries..."
        $(foreach PLATFORM,$(PLATFORMS), echo -n "$(PLATFORM)..."; ARCH=$(PLATFORM) make build;)
    
        echo "Building and pushing ingress-nginx image..."
        @docker buildx build 
            --no-cache 
            --push 
            --progress plain 
            --platform $(subst $(SPACE),$(COMMA),$(PLATFORMS)) 
            --build-arg BASE_IMAGE="$(BASE_IMAGE)" 
            --build-arg VERSION="$(TAG)" 
            --build-arg COMMIT_SHA="$(COMMIT_SHA)" 
            --build-arg BUILD_ID="$(BUILD_ID)" 
            -t $(REGISTRY)/controller:$(TAG) rootfs
    View Code

    build脚本中进行go build 构建

    go build -o指定可执行类,默认根目录下main.go

    #!/bin/bash
    
    # Copyright 2018 The Kubernetes 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.
    
    if [ -n "$DEBUG" ]; then
        set -x
    fi
    
    set -o errexit
    set -o nounset
    set -o pipefail
    
    declare -a mandatory
    mandatory=(
      PKG
      ARCH
      COMMIT_SHA
      REPO_INFO
      TAG
    )
    
    missing=false
    for var in "${mandatory[@]}"; do
      if [[ -z "${!var:-}" ]]; then
        echo "Environment variable $var must be set"
        missing=true
      fi
    done
    
    if [ "$missing" = true ]; then
      exit 1
    fi
    
    export CGO_ENABLED=0
    export GOARCH=${ARCH}
    
    go build 
      -trimpath -ldflags="-buildid= -w -s 
        -X ${PKG}/version.RELEASE=${TAG} 
        -X ${PKG}/version.COMMIT=${COMMIT_SHA} 
        -X ${PKG}/version.REPO=${REPO_INFO}" 
      -o "rootfs/bin/${ARCH}/nginx-ingress-controller" "${PKG}/cmd/nginx"
    
    go build 
      -trimpath -ldflags="-buildid= -w -s 
        -X ${PKG}/version.RELEASE=${TAG} 
        -X ${PKG}/version.COMMIT=${COMMIT_SHA} 
        -X ${PKG}/version.REPO=${REPO_INFO}" 
      -o "rootfs/bin/${ARCH}/dbg" "${PKG}/cmd/dbg"
    
    go build 
      -trimpath -ldflags="-buildid= -w -s 
        -X ${PKG}/version.RELEASE=${TAG} 
        -X ${PKG}/version.COMMIT=${COMMIT_SHA} 
        -X ${PKG}/version.REPO=${REPO_INFO}" 
      -o "rootfs/bin/${ARCH}/wait-shutdown" "${PKG}/cmd/waitshutdown"

    看下入口

     plugin为单独按需构建

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  • 原文地址:https://www.cnblogs.com/it-worker365/p/15423138.html
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