Init nacos-k8s-sync

.gitignore

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+.idea/
+

.helm/nacos-k8s-sync/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

.helm/nacos-k8s-sync/Chart.yaml

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+apiVersion: v2
+name: nacos-k8s-sync
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "0.0.3"

.helm/nacos-k8s-sync/templates/_helpers.tpl

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+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "nacos-k8s-sync.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "nacos-k8s-sync.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "nacos-k8s-sync.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "nacos-k8s-sync.labels" -}}
+helm.sh/chart: {{ include "nacos-k8s-sync.chart" . }}
+{{ include "nacos-k8s-sync.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "nacos-k8s-sync.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "nacos-k8s-sync.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}
+
+{{/*
+Create the name of the service account to use
+*/}}
+{{- define "nacos-k8s-sync.serviceAccountName" -}}
+{{- if .Values.serviceAccount.create }}
+{{- default (include "nacos-k8s-sync.fullname" .) .Values.serviceAccount.name }}
+{{- else }}
+{{- default "default" .Values.serviceAccount.name }}
+{{- end }}
+{{- end }}

.helm/nacos-k8s-sync/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "nacos-k8s-sync.fullname" . }}
+  namespace: {{ .Values.global.namespace }}
+  labels:
+    {{- include "nacos-k8s-sync.labels" . | nindent 4 }}
+spec:
+  {{- if not .Values.autoscaling.enabled }}
+  replicas: {{ .Values.replicaCount }}
+  {{- end }}
+  selector:
+    matchLabels:
+      {{- include "nacos-k8s-sync.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "nacos-k8s-sync.selectorLabels" . | nindent 8 }}
+    spec:
+      {{- with .Values.imagePullSecrets }}
+      imagePullSecrets:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      serviceAccountName: nacos-k8s-sync-sa
+      securityContext:
+        {{- toYaml .Values.podSecurityContext | nindent 8 }}
+      containers:
+        - name: {{ .Chart.Name }}
+          securityContext:
+            {{- toYaml .Values.securityContext | nindent 12 }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          command: 
+          - "/main"
+          args:
+          - --serversIP={{ .Values.global.mseAddr }}
+          - --serverPort={{ .Values.global.msePort }}
+          - --appNamespace={{ .Values.global.namespace }}
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

.helm/nacos-k8s-sync/templates/role.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: nacos-k8s-sync-{{ .Values.global.namespace }}
+  namespace: {{ .Values.global.namespace }}
+rules:
+- apiGroups: [""]
+  resources: ["services", "endpoints"]
+  verbs: ["get", "watch", "list"]

.helm/nacos-k8s-sync/templates/rolebinding.yaml

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+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: nacos-k8s-sync-{{ .Values.global.namespace }}
+  namespace: {{ .Values.global.namespace }}
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: nacos-k8s-sync-{{ .Values.global.namespace }}
+subjects:
+  - kind: ServiceAccount
+    name: nacos-k8s-sync-sa
+    namespace: {{ .Values.global.namespace }}

.helm/nacos-k8s-sync/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccount.create -}}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: nacos-k8s-sync-sa
+  namespace: {{ .Values.global.namespace }}
+  {{- with .Values.serviceAccount.annotations }}
+  annotations:
+    {{- toYaml . | nindent 4 }}
+  {{- end }}
+{{- end }}

.helm/nacos-k8s-sync/values.yaml

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+# Default values for nacos-k8s-sync.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+
+global:
+  namespace: "istio-system"
+  mseAddr: ""
+  msePort: "8848"
+
+autoscaling:
+  enabled: false
+
+image:
+  repository: registry.cn-zhangjiakou.aliyuncs.com/arch-nlp/nacos-sync
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: ""
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+serviceAccount:
+  # Specifies whether a service account should be created
+  create: true
+  # Annotations to add to the service account
+  annotations: {}
+  # The name of the service account to use.
+  # If not set and create is true, a name is generated using the fullname template
+  name: "nacos-k8s-sync-sa"
+
+podAnnotations: {}
+
+podSecurityContext: {}
+  # fsGroup: 2000
+
+securityContext: {}
+  # capabilities:
+  #   drop:
+  #   - ALL
+  # readOnlyRootFilesystem: true
+  # runAsNonRoot: true
+  # runAsUser: 1000
+
+service:
+  type: ClusterIP
+  port: 80
+
+
+resources: 
+  limits:
+    cpu: 2
+    memory: 1024Mi
+  requests:
+    cpu: 500m
+    memory: 512Mi
+
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

Dockerfile

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+FROM golang:1.15.3 AS build
+
+
+WORKDIR /src
+COPY . .
+RUN go env -w GOPROXY=https://goproxy.cn,direct
+RUN STATIC=0 GOOS=linux GOARCH=amd64 LDFLAGS='-extldflags -static -s -w' go build -o main ./cmd/nacos-k8s-sync
+
+FROM ubuntu:20.04
+WORKDIR /
+COPY --from=build /src/main /main
+CMD ["./main"]

Makefile

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+FINDFILES=find . \( -path ./common-protos -o -path ./.git -o -path ./out -o -path ./.github -o -path ./licenses -o -path ./vendor \) -prune -o -type f
+
+tidy-go:
+	@go mod tidy
+
+lint-go:
+	@${FINDFILES} -name '*.go' \( ! \( -name '*.gen.go' -o -name '*.pb.go' \) \) -print0 | ${XARGS} common/scripts/lint_go.sh
+
+format-go: tidy-go
+	@${FINDFILES} -name '*.go' \( ! \( -name '*.gen.go' -o -name '*.pb.go' \) \) -print0 | ${XARGS} common/scripts/format_go.sh
+
+precommit: format-go lint-go

README.md

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-# nacos-k8s-sync
-A plugin for sync services from k8s to nacos.
+### 简介
+该项目用于同步Kubernetes和Nacos之间的服务信息。
+
+目前该项目仅支持 Kubernetes Service -> Nacos Service 的同步
+
+### TODO
+- ~~增加高性能zap的logger~~
+- 增加 Nacos Service -> Kubernetes Service 的同步
+- 监听K8s集群中的多个Namespace
+- Nacos支持多Namespace注册
+- 服务信息的获取方式的兜底方案，比如从Service的Spec获取
+- 单元测试
+
+### 代码提交需知
+- 需要运行一下 `make precommit`，处理完imports排序后并保证编译成功，方可提交

cmd/cmd.go

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+package cmd
+
+import (
+	"flag"
+	"os"
+	"os/signal"
+	"syscall"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
+	"github.com/nacos-group/nacos-k8s-sync/pkg/logger"
+)
+
+// WaitSignal awaits for SIGINT or SIGTERM and closes the channel
+func WaitSignal(stop chan struct{}) {
+	sigs := make(chan os.Signal, 1)
+	signal.Notify(sigs, syscall.SIGINT, syscall.SIGTERM)
+	<-sigs
+	close(stop)
+	logger.Sync()
+}
+
+// AddFlags adds all command line flags to the given command.
+func AddFlags(rootCmd *cobra.Command) {
+	rootCmd.Flags().AddGoFlagSet(flag.CommandLine)
+}
+
+// PrintFlags logs the flags in the flagset
+func PrintFlags(flags *pflag.FlagSet) {
+	flags.VisitAll(func(flag *pflag.Flag) {
+		logger.Infof("FLAG: --%s=%q", flag.Name, flag.Value)
+	})
+}