Istio 的安装配置
发表于：2024-10-21 作者：千家信息网编辑
千家信息网最后更新 2024年10月21日，环境操作系统：CentOS Linux release 7.6.1810 (Core)内核版本：Linux node03 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue J
千家信息网最后更新 2024年10月21日Istio 的安装配置
环境
操作系统：CentOS Linux release 7.6.1810 (Core)内核版本：Linux node03 3.10.0-957.21.3.el7.x86_64 #1 SMP Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64 x86_64 GNU/Linuxkubernetes：Server Version: version.Info{Major:"1", Minor:"14", GitVersion:"v1.14.6", GitCommit:"96fac5cd13a5dc064f7d9f4f23030a6aeface6cc", GitTreeState:"archive", BuildDate:"2019-08-22T01:38:12Z", GoVersion:"go1.12.7", Compiler:"gc", Platform:"linux/amd64"}kubectl：Client Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.3", GitCommit:"2d3c76f9091b6bec110a5e63777c332469e0cba2", GitTreeState:"archive", BuildDate:"2019-09-04T10:28:54Z", GoVersion:"go1.12.9", Compiler:"gc", Platform:"linux/amd64"}操作机系统：win10 on Ubuntu 18.04.3 LTShelm：version.BuildInfo{Version:"v3.0.0-beta.3", GitCommit:"5cb923eecbe80d1ad76399aee234717c11931d9a", GitTreeState:"clean", GoVersion:"go1.12.9"}# 说明： helm 与以前的版本不兼容一定谨慎可以多版本一起使用istio：1.2.5# kube-apiserver 配置删除AlwaysPullImages 不然自动注入不生效下载 Istio 发布包
#下载Istiocurl -L https://git.io/getLatestIstio | ISTIO_VERSION=1.2.5 sh -# 进入 Istio 包目录 cd istio-1.2.5# 安装目录中包含：#在 install/ 目录中包含了 Kubernetes 安装所需的 .yaml 文件#samples/ 目录中是示例应用#istioctl 客户端文件保存在 bin/ 目录之中。istioctl 的功能是手工进行 Envoy Sidecar 的注入。#istio.VERSION 配置文件#把 istioctl 客户端加入 PATH 环境变量，可以这样实现：echo export PATH=$PWD/bin:\$PATH >>/etc/profile. /etc/profile export PATH=$PWD/bin:$PATH修改Istio & values配置
cd install/kubernetes/helm/istio#本人修改的地方请对照修改 values.yaml# Top level istio values file has the following sections.## global: This file is the authoritative and exhaustive source for the global section.## chart sections: Every subdirectory inside the charts/ directory has a top level# configuration key in this file. This file overrides the values specified# by the charts/${chartname}/values.yaml.# Check the chart level values file for exhaustive list of configuration options.## Gateways Configuration, refer to the charts/gateways/values.yaml# for detailed configuration#gateways: enabled: true## sidecar-injector webhook configuration, refer to the# charts/sidecarInjectorWebhook/values.yaml for detailed configuration#sidecarInjectorWebhook: enabled: true## galley configuration, refer to charts/galley/values.yaml# for detailed configuration#galley: enabled: true## mixer configuration## @see charts/mixer/values.yaml, it takes precedencemixer: policy: # if policy is enabled the global.disablePolicyChecks has affect. enabled: true telemetry: enabled: true## pilot configuration## @see charts/pilot/values.yamlpilot: enabled: true## security configuration#security: enabled: true## nodeagent configuration#nodeagent: enabled: false## addon grafana configuration#grafana: enabled: true## addon prometheus configuration#prometheus: enabled: true## addon jaeger tracing configuration#tracing: enabled: true## addon kiali tracing configuration#kiali: enabled: true## addon certmanager configuration#certmanager: enabled: false## Istio CNI plugin enabled# This must be enabled to use the CNI plugin in Istio. The CNI plugin is installed separately.# If true, the privileged initContainer istio-init is not needed to perform the traffic redirect# settings for the istio-proxy.#istio_cni: enabled: true# addon Istio CoreDNS configuration#istiocoredns: enabled: false# Common settings used among istio subcharts.global: # Default hub for Istio images. # Releases are published to docker hub under 'istio' project. # Daily builds from prow are on gcr.io, and nightly builds from circle on docker.io/istionightly hub: docker.io/istio # Default tag for Istio images. tag: 1.2.5 # Comma-separated minimum per-scope logging level of messages to output, in the form of :,: # The control plane has different scopes depending on component, but can configure default log level across all components # If empty, default scope and level will be used as configured in code logging: level: "default:info" # monitoring port used by mixer, pilot, galley monitoringPort: 15014 k8sIngress: enabled: true # Gateway used for k8s Ingress resources. By default it is # using 'istio:ingressgateway' that will be installed by setting # 'gateways.enabled' and 'gateways.istio-ingressgateway.enabled' # flags to true. gatewayName: ingressgateway # enableHttps will add port 443 on the ingress. # It REQUIRES that the certificates are installed in the # expected secrets - enabling this option without certificates # will result in LDS rejection and the ingress will not work. enableHttps: false proxy: image: proxyv2 # 修改成自己配置k8s 域名 # cluster domain. Default value is "cluster.local". clusterDomain: "cluster.local" # Resources for the sidecar. resources: requests: cpu: 100m memory: 128Mi limits: cpu: 2000m memory: 1024Mi # Controls number of Proxy worker threads. # If set to 0 (default), then start worker thread for each CPU thread/core. concurrency: 2 # Configures the access log for each sidecar. # Options: # "" - disables access log # "/dev/stdout" - enables access log accessLogFile: "/dev/stdout" # Configure how and what fields are displayed in sidecar access log. Setting to # empty string will result in default log format accessLogFormat: "" # Configure the access log for sidecar to JSON or TEXT. accessLogEncoding: TEXT # Log level for proxy, applies to gateways and sidecars. If left empty, "warning" is used. # Expected values are: trace|debug|info|warning|error|critical|off logLevel: "info" # Per Component log level for proxy, applies to gateways and sidecars. If a component level is # not set, then the global "logLevel" will be used. If left empty, "misc:error" is used. componentLogLevel: "" # Configure the DNS refresh rate for Envoy cluster of type STRICT_DNS # This must be given it terms of seconds. For example, 300s is valid but 5m is invalid. dnsRefreshRate: 300s #If set to true, istio-proxy container will have privileged securityContext privileged: false # If set, newly injected sidecars will have core dumps enabled. enableCoreDump: false # Default port for Pilot agent health checks. A value of 0 will disable health checking. statusPort: 15020 # The initial delay for readiness probes in seconds. readinessInitialDelaySeconds: 1 # The period between readiness probes. readinessPeriodSeconds: 2 # The number of successive failed probes before indicating readiness failure. readinessFailureThreshold: 30 # istio egress capture whitelist # https://istio.io/docs/tasks/traffic-management/egress.html#calling-external-services-directly # example: includeIPRanges: "172.30.0.0/16,172.20.0.0/16" # would only capture egress traffic on those two IP Ranges, all other outbound traffic would # be allowed by the sidecar includeIPRanges: "*" excludeIPRanges: "" excludeOutboundPorts: "" # pod internal interfaces kubevirtInterfaces: "" # istio ingress capture whitelist # examples: # Redirect no inbound traffic to Envoy: --includeInboundPorts="" # Redirect all inbound traffic to Envoy: --includeInboundPorts="*" # Redirect only selected ports: --includeInboundPorts="80,8080" includeInboundPorts: "*" excludeInboundPorts: "" # This controls the 'policy' in the sidecar injector. autoInject: disabled # 当配置为enabled 会自动注入所有命名空间标签istio-injection=enabled的 # 需要在不自动注入的pod 配置： #annotations: # sidecar.istio.io/inject: "false" # autoInject: disabled 开启自动注入需要在pod配置： # annotations: # sidecar.istio.io/inject: "true" 一定注意 # Sets the destination Statsd in envoy (the value of the "--statsdUdpAddress" proxy argument # would be :). # Disabled by default. # The istio-statsd-prom-bridge is deprecated and should not be used moving forward. envoyStatsd: # If enabled is set to true, host and port must also be provided. Istio no longer provides a statsd collector. enabled: false host: # example: statsd-svc.istio-system port: # example: 9125 # Sets the Envoy Metrics Service address, used to push Envoy metrics to an external collector # via the Metrics Service gRPC API. This contains detailed stats information emitted directly # by Envoy and should not be confused with the the Istio telemetry. The Envoy stats are also # available to scrape via the Envoy admin port at either /stats or /stats/prometheus. # # See https://www.envoyproxy.io/docs/envoy/latest/api-v2/config/metrics/v2/metrics_service.proto # for details about Envoy's Metrics Service API. # # Disabled by default. envoyMetricsService: enabled: false host: # example: metrics-service.istio-system port: # example: 15000 # Specify which tracer to use. One of: lightstep, zipkin, datadog tracer: "zipkin" proxy_init: # Base name for the proxy_init container, used to configure iptables. image: proxy_init # imagePullPolicy is applied to istio control plane components. # local tests require IfNotPresent, to avoid uploading to dockerhub. # TODO: Switch to Always as default, and override in the local tests. imagePullPolicy: IfNotPresent # controlPlaneSecurityEnabled enabled. Will result in delays starting the pods while secrets are # propagated, not recommended for tests. controlPlaneSecurityEnabled: false # disablePolicyChecks disables mixer policy checks. # if mixer.policy.enabled==true then disablePolicyChecks has affect. # Will set the value with same name in istio config map - pilot needs to be restarted to take effect. disablePolicyChecks: false # policyCheckFailOpen allows traffic in cases when the mixer policy service cannot be reached. # Default is false which means the traffic is denied when the client is unable to connect to Mixer. policyCheckFailOpen: false # EnableTracing sets the value with same name in istio config map, requires pilot restart to take effect. enableTracing: true # Configuration for each of the supported tracers tracer: # Configuration for envoy to send trace data to LightStep. # Disabled by default. # address: the : of the satellite pool # accessToken: required for sending data to the pool # secure: specifies whether data should be sent with TLS # cacertPath: the path to the file containing the cacert to use when verifying TLS. If secure is true, this is # required. If a value is specified then a secret called "lightstep.cacert" must be created in the destination # namespace with the key matching the base of the provided cacertPath and the value being the cacert itself. # lightstep: address: "" # example: lightstep-satellite:443 accessToken: "" # example: abcdefg1234567 secure: true # example: true|false cacertPath: "" # example: /etc/lightstep/cacert.pem zipkin: # Host:Port for reporting trace data in zipkin format. If not specified, will default to # zipkin service (port 9411) in the same namespace as the other istio components. address: "" datadog: # Host:Port for submitting traces to the Datadog agent. address: "$(HOST_IP):8126" # Default mtls policy. If true, mtls between services will be enabled by default. mtls: # Default setting for service-to-service mtls. Can be set explicitly using # destination rules or service annotations. enabled: false # ImagePullSecrets for all ServiceAccount, list of secrets in the same namespace # to use for pulling any images in pods that reference this ServiceAccount. # For components that don't use ServiceAccounts (i.e. grafana, servicegraph, tracing) # ImagePullSecrets will be added to the corresponding Deployment(StatefulSet) objects. # Must be set for any cluster configured with private docker registry. imagePullSecrets: # - private-registry-key # Specify pod scheduling arch(amd64, ppc64le, s390x) and weight as follows: # 0 - Never scheduled # 1 - Least preferred # 2 - No preference # 3 - Most preferred arch: amd64: 2 s390x: 2 ppc64le: 2 # Whether to restrict the applications namespace the controller manages; # If not set, controller watches all namespaces oneNamespace: false # Default node selector to be applied to all deployments so that all pods can be # constrained to run a particular nodes. Each component can overwrite these default # values by adding its node selector block in the relevant section below and setting # the desired values. defaultNodeSelector: {} # Default node tolerations to be applied to all deployments so that all pods can be # scheduled to a particular nodes with matching taints. Each component can overwrite # these default values by adding its tolerations block in the relevant section below # and setting the desired values. # Configure this field in case that all pods of Istio control plane are expected to # be scheduled to particular nodes with specified taints. defaultTolerations: [] # Whether to perform server-side validation of configuration. configValidation: true # Custom DNS config for the pod to resolve names of services in other # clusters. Use this to add additional search domains, and other settings. # see # https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#dns-config # This does not apply to gateway pods as they typically need a different # set of DNS settings than the normal application pods (e.g., in # multicluster scenarios). # NOTE: If using templates, follow the pattern in the commented example below. #podDNSSearchNamespaces: #- global #- "[[ valueOrDefault .DeploymentMeta.Namespace \"default\" ]].global" # If set to true, the pilot and citadel mtls will be exposed on the # ingress gateway meshExpansion: enabled: false # If set to true, the pilot and citadel mtls and the plain text pilot ports # will be exposed on an internal gateway useILB: false multiCluster: # Set to true to connect two kubernetes clusters via their respective # ingressgateway services when pods in each cluster cannot directly # talk to one another. All clusters should be using Istio mTLS and must # have a shared root CA for this model to work. enabled: false # A minimal set of requested resources to applied to all deployments so that # Horizontal Pod Autoscaler will be able to function (if set). # Each component can overwrite these default values by adding its own resources # block in the relevant section below and setting the desired resources values. defaultResources: requests: cpu: 10m # memory: 128Mi # limits: # cpu: 100m # memory: 128Mi # enable pod distruption budget for the control plane, which is used to # ensure Istio control plane components are gradually upgraded or recovered. defaultPodDisruptionBudget: enabled: true # The values aren't mutable due to a current PodDisruptionBudget limitation # minAvailable: 1 # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and # system-node-critical, it is better to configure this in order to make sure your Istio pods # will not be killed because of low priority class. # Refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass # for more detail. priorityClassName: "" # Use the Mesh Control Protocol (MCP) for configuring Mixer and # Pilot. Requires galley (`--set galley.enabled=true`). useMCP: true # The trust domain corresponds to the trust root of a system # Refer to https://github.com/spiffe/spiffe/blob/master/standards/SPIFFE-ID.md#21-trust-domain # Indicate the domain used in SPIFFE identity URL # The default depends on the environment. # kubernetes: cluster.local # else: default dns domain trustDomain: "" # Set the default behavior of the sidecar for handling outbound traffic from the application: # ALLOW_ANY - outbound traffic to unknown destinations will be allowed, in case there are no # services or ServiceEntries for the destination port # REGISTRY_ONLY - restrict outbound traffic to services defined in the service registry as well # as those defined through ServiceEntries # ALLOW_ANY is the default in 1.1. This means each pod will be able to make outbound requests # to services outside of the mesh without any ServiceEntry. # REGISTRY_ONLY was the default in 1.0. If this behavior is desired, set the value below to REGISTRY_ONLY. outboundTrafficPolicy: mode: ALLOW_ANY # The namespace where globally shared configurations should be present. # DestinationRules that apply to the entire mesh (e.g., enabling mTLS), # default Sidecar configs, etc. should be added to this namespace. # configRootNamespace: istio-config # set the default set of namespaces to which services, service entries, virtual services, destination # rules should be exported to. Currently only one value can be provided in this list. This value # should be one of the following two options: # * implies these objects are visible to all namespaces, enabling any sidecar to talk to any other sidecar. # . implies these objects are visible to only to sidecars in the same namespace, or if imported as a Sidecar.egress.host #defaultConfigVisibilitySettings: #- '*' sds: # SDS enabled. IF set to true, mTLS certificates for the sidecars will be # distributed through the SecretDiscoveryService instead of using K8S secrets to mount the certificates. enabled: false udsPath: "" useTrustworthyJwt: false useNormalJwt: false # Configure the mesh networks to be used by the Split Horizon EDS. # # The following example defines two networks with different endpoints association methods. # For `network1` all endpoints that their IP belongs to the provided CIDR range will be # mapped to network1. The gateway for this network example is specified by its public IP # address and port. # The second network, `network2`, in this example is defined differently with all endpoints # retrieved through the specified Multi-Cluster registry being mapped to network2. The # gateway is also defined differently with the name of the gateway service on the remote # cluster. The public IP for the gateway will be determined from that remote service (only # LoadBalancer gateway service type is currently supported, for a NodePort type gateway service, # it still need to be configured manually). # # meshNetworks: # network1: # endpoints: # - fromCidr: "192.168.0.1/24" # gateways: # - address: 1.1.1.1 # port: 80 # network2: # endpoints: # - fromRegistry: reg1 # gateways: # - registryServiceName: istio-ingressgateway.istio-system.svc.cluster.local # port: 443 # meshNetworks: {} # Specifies the global locality load balancing settings. # Locality-weighted load balancing allows administrators to control the distribution of traffic to # endpoints based on the localities of where the traffic originates and where it will terminate. # Please set either failover or distribute configuration but not both. # # localityLbSetting: # distribute: # - from: "us-central1/*" # to: # "us-central1/*": 80 # "us-central2/*": 20 # # localityLbSetting: # failover: # - from: us-east # to: eu-west # - from: us-west # to: us-east localityLbSetting: {} # Specifies whether helm test is enabled or not. # This field is set to false by default, so 'helm template ...' # will ignore the helm test yaml files when generating the template enableHelmTest: false# 子模块的values 配置修改# gateways 修改# 删除NodePort 使用ClusterIP 如果gateways 以daemonset 方式部署最好使用hostNetwork: true 这样TCP 代理可以直接hostip 访问代理端口 代替Ingress直接对外访问cd charts/gatewaysvi values.yaml## Gateways Configuration# By default (if enabled) a pair of Ingress and Egress Gateways will be created for the mesh.# You can add more gateways in addition to the defaults but make sure those are uniquely named# and that NodePorts are not conflicting.# Disable specifc gateway by setting the `enabled` to false.#enabled: trueistio-ingressgateway: enabled: true # # Secret Discovery Service (SDS) configuration for ingress gateway. # sds: # If true, ingress gateway fetches credentials from SDS server to handle TLS connections. enabled: false # SDS server that watches kubernetes secrets and provisions credentials to ingress gateway. # This server runs in the same pod as ingress gateway. image: node-agent-k8s resources: requests: cpu: 100m memory: 128Mi limits: cpu: 2000m memory: 1024Mi labels: app: istio-ingressgateway istio: ingressgateway autoscaleEnabled: true autoscaleMin: 1 autoscaleMax: 5 # specify replicaCount when autoscaleEnabled: false # replicaCount: 1 resources: requests: cpu: 100m memory: 128Mi limits: cpu: 2000m memory: 1024Mi cpu: targetAverageUtilization: 80 loadBalancerIP: "" loadBalancerSourceRanges: [] externalIPs: [] # 请更具自己部署的ingress 服务修改如果直接使用ingressgateway 作为ingress可以删除这行配置 serviceAnnotations: {kubernetes.io/ingress.class: traefik,traefik.ingress.kubernetes.io/affinity: "true",traefik.ingress.kubernetes.io/load-balancer-method: drr} #serviceAnnotations: {} podAnnotations: {} type: ClusterIP #change to NodePort, ClusterIP or LoadBalancer if need be #externalTrafficPolicy: Local #change to Local to preserve source IP or Cluster for default behaviour or leave commented out ports: ## You can add custom gateway ports # Note that AWS ELB will by default perform health checks on the first port # on this list. Setting this to the health check port will ensure that health # checks always work. https://github.com/istio/istio/issues/12503 - port: 15020 targetPort: 15020 name: status-port - port: 80 targetPort: 80 name: http2 - port: 443 name: https # Example of a port to add. Remove if not needed - port: 31400 name: tcp ### PORTS FOR UI/metrics ##### ## Disable if not needed - port: 15029 targetPort: 15029 name: https-kiali - port: 15030 targetPort: 15030 name: https-prometheus - port: 15031 targetPort: 15031 name: https-grafana - port: 15032 targetPort: 15032 name: https-tracing # This is the port where sni routing happens - port: 15443 targetPort: 15443 name: tls #### MESH EXPANSION PORTS ######## # Pilot and Citadel MTLS ports are enabled in gateway - but will only redirect # to pilot/citadel if global.meshExpansion settings are enabled. # Delete these ports if mesh expansion is not enabled, to avoid # exposing unnecessary ports on the web. # You can remove these ports if you are not using mesh expansion meshExpansionPorts: - port: 15011 targetPort: 15011 name: tcp-pilot-grpc-tls - port: 15004 targetPort: 15004 name: tcp-mixer-grpc-tls - port: 8060 targetPort: 8060 name: tcp-citadel-grpc-tls - port: 853 targetPort: 853 name: tcp-dns-tls ####### end MESH EXPANSION PORTS ###### ############## secretVolumes: - name: ingressgateway-certs secretName: istio-ingressgateway-certs mountPath: /etc/istio/ingressgateway-certs - name: ingressgateway-ca-certs secretName: istio-ingressgateway-ca-certs mountPath: /etc/istio/ingressgateway-ca-certs ### Advanced options ############ # Ports to explicitly check for readiness. If configured, the readiness check will expect a # listener on these ports. A comma separated list is expected, such as "80,443". # # Warning: If you do not have a gateway configured for the ports provided, this check will always # fail. This is intended for use cases where you always expect to have a listener on the port, # such as 80 or 443 in typical setups. applicationPorts: "" env: # A gateway with this mode ensures that pilot generates an additional # set of clusters for internal services but without Istio mTLS, to # enable cross cluster routing. ISTIO_META_ROUTER_MODE: "sni-dnat" nodeSelector: {} tolerations: [] # Specify the pod anti-affinity that allows you to constrain which nodes # your pod is eligible to be scheduled based on labels on pods that are # already running on the node rather than based on labels on nodes. # There are currently two types of anti-affinity: # "requiredDuringSchedulingIgnoredDuringExecution" # "preferredDuringSchedulingIgnoredDuringExecution" # which denote "hard" vs. "soft" requirements, you can define your values # in "podAntiAffinityLabelSelector" and "podAntiAffinityTermLabelSelector" # correspondingly. # For example: # podAntiAffinityLabelSelector: # - key: security # operator: In # values: S1,S2 # topologyKey: "kubernetes.io/hostname" # This pod anti-affinity rule says that the pod requires not to be scheduled # onto a node if that node is already running a pod with label having key # "security" and value "S1". podAntiAffinityLabelSelector: [] podAntiAffinityTermLabelSelector: []istio-egressgateway: enabled: true labels: app: istio-egressgateway istio: egressgateway autoscaleEnabled: true autoscaleMin: 1 autoscaleMax: 5 # specify replicaCount when autoscaleEnabled: false # replicaCount: 1 resources: requests: cpu: 100m memory: 128Mi limits: cpu: 2000m memory: 256Mi cpu: targetAverageUtilization: 80 serviceAnnotations: {} podAnnotations: {} type: ClusterIP #change to NodePort or LoadBalancer if need be ports: - port: 80 name: http2 - port: 443 name: https # This is the port where sni routing happens - port: 15443 targetPort: 15443 name: tls secretVolumes: - name: egressgateway-certs secretName: istio-egressgateway-certs mountPath: /etc/istio/egressgateway-certs - name: egressgateway-ca-certs secretName: istio-egressgateway-ca-certs mountPath: /etc/istio/egressgateway-ca-certs #### Advanced options ######## env: # Set this to "external" if and only if you want the egress gateway to # act as a transparent SNI gateway that routes mTLS/TLS traffic to # external services defined using service entries, where the service # entry has resolution set to DNS, has one or more endpoints with # network field set to "external". By default its set to "" so that # the egress gateway sees the same set of endpoints as the sidecars # preserving backward compatibility # ISTIO_META_REQUESTED_NETWORK_VIEW: "" # A gateway with this mode ensures that pilot generates an additional # set of clusters for internal services but without Istio mTLS, to # enable cross cluster routing. ISTIO_META_ROUTER_MODE: "sni-dnat" nodeSelector: {} tolerations: [] # Specify the pod anti-affinity that allows you to constrain which nodes # your pod is eligible to be scheduled based on labels on pods that are # already running on the node rather than based on labels on nodes. # There are currently two types of anti-affinity: # "requiredDuringSchedulingIgnoredDuringExecution" # "preferredDuringSchedulingIgnoredDuringExecution" # which denote "hard" vs. "soft" requirements, you can define your values # in "podAntiAffinityLabelSelector" and "podAntiAffinityTermLabelSelector" # correspondingly. # For example: # podAntiAffinityLabelSelector: # - key: security # operator: In # values: S1,S2 # topologyKey: "kubernetes.io/hostname" # This pod anti-affinity rule says that the pod requires not to be scheduled # onto a node if that node is already running a pod with label having key # "security" and value "S1". podAntiAffinityLabelSelector: [] podAntiAffinityTermLabelSelector: []# Mesh ILB gateway creates a gateway of type InternalLoadBalancer,# for mesh expansion. It exposes the mtls ports for Pilot,CA as well# as non-mtls ports to support upgrades and gradual transition.istio-ilbgateway: enabled: false labels: app: istio-ilbgateway istio: ilbgateway autoscaleEnabled: false autoscaleMin: 1 autoscaleMax: 10 # specify replicaCount when autoscaleEnabled: false # replicaCount: 1 cpu: targetAverageUtilization: 80 resources: requests: cpu: 800m memory: 512Mi #limits: # cpu: 1800m # memory: 256Mi loadBalancerIP: "" serviceAnnotations: cloud.google.com/load-balancer-type: "internal" podAnnotations: {} type: ClusterIP ports: ## You can add custom gateway ports - google ILB default quota is 5 ports, - port: 15011 name: grpc-pilot-mtls # Insecure port - only for migration from 0.8. Will be removed in 1.1 - port: 15010 name: grpc-pilot - port: 8060 targetPort: 8060 name: tcp-citadel-grpc-tls # Port 5353 is forwarded to kube-dns - port: 5353 name: tcp-dns secretVolumes: - name: ilbgateway-certs secretName: istio-ilbgateway-certs mountPath: /etc/istio/ilbgateway-certs - name: ilbgateway-ca-certs secretName: istio-ilbgateway-ca-certs mountPath: /etc/istio/ilbgateway-ca-certs nodeSelector: {} tolerations: []# 修改kialingress: enabled: true ## Used to create an Ingress record. hosts: - kiali.xxxxx.com annotations: # kubernetes.io/ingress.class: nginx # kubernetes.io/tls-acme: "true" tls: # Secrets must be manually created in the namespace. # - secretName: kiali-tls # hosts: # - kiali.local# 设置密码登陆createDemoSecret: true# tracing 修改ingress: enabled: true # Used to create an Ingress record. hosts: # - tracing.xxxx.com annotations: # kubernetes.io/ingress.class: nginx # kubernetes.io/tls-acme: "true" tls: # Secrets must be manually created in the namespace. # - secretName: tracing-tls # hosts: # - tracing.local 修改 mixer policy: # if policy is enabled, global.disablePolicyChecks has affect. enabled: true # 启用策略检查 修改gateways service配置
cd helm/istio/charts/gateways/templatesvi service.yaml{{- range $key, $spec := .Values }}{{- if ne $key "enabled" }}{{- if $spec.enabled }}apiVersion: v1kind: Servicemetadata: name: {{ $key }} namespace: {{ $spec.namespace | default $.Release.Namespace }} annotations: {{- range $key, $val := $spec.serviceAnnotations }} {{ $key }}: {{ $val | quote }} {{- end }} labels: chart: {{ template "gateway.chart" $ }} heritage: {{ $.Release.Service }} release: {{ $.Release.Name }} {{- range $key, $val := $spec.labels }} {{ $key }}: {{ $val }} {{- end }}spec:{{- if $spec.loadBalancerIP }} loadBalancerIP: "{{ $spec.loadBalancerIP }}"{{- end }}{{- if $spec.loadBalancerSourceRanges }} loadBalancerSourceRanges:{{ toYaml $spec.loadBalancerSourceRanges | indent 4 }}{{- end }}{{- if $spec.externalTrafficPolicy }} externalTrafficPolicy: {{$spec.externalTrafficPolicy }}{{- end }}{{- if $spec.externalIPs }} externalIPs:{{ toYaml $spec.externalIPs | indent 4 }}{{- end }} type: {{ .type }} selector: release: {{ $.Release.Name }} {{- range $key, $val := $spec.labels }} {{ $key }}: {{ $val }} {{- end }} # 使用POD IP 直接对外服务器不生成clusterIP 不然前端在放一个代理tcp 方式每次修改service 就很不方便 clusterIP: None ports: {{- range $key, $val := $spec.ports }} - {{- range $pkey, $pval := $val }} {{ $pkey}}: {{ $pval }} {{- end }} {{- end }} {{- if $.Values.global.meshExpansion.enabled }} {{- range $key, $val := $spec.meshExpansionPorts }} - {{- range $pkey, $pval := $val }} {{ $pkey}}: {{ $pval }} {{- end }} {{- end }} {{- end }}---{{- end }}{{- end }}{{- end }}修改istio-cni values
cd istio-1.2.5/install/kubernetes/helm/istio-cnihub: docker.io/istiotag: 1.2.5pullPolicy: AlwayslogLevel: info# Configuration file to insert istio-cni plugin configuration# by default this will be the first file found in the cni-conf-dir# Example# cniConfFileName: 10-calico.conflist# CNI bin and conf dir override settings# defaults:# cni 二进制目录 宿主机cniBinDir: /apps/cni/bin# cni 配置文件地址宿主机cniConfDir: /etc/cni/net.d# 下面修改要排除的命名空间excludeNamespaces: - istio-system - monitoring - clusterstorage - consul - kubernetes-dashboard - kube-system# 修改istio-cni.yaml 添加tolerations # 如果没做tolerations 可以bu不用修改#101 行添加内容 - effect: NoSchedule key: node-role.kubernetes.io/ingress operator: Equal部署 istio
# 不开启certmanager cd istio-1.2.5/# 创建命名空间kubectl apply -f install/kubernetes/namespace.yaml# 部署crdhelm install install/kubernetes/helm/istio-init --name-template istio-init --namespace istio-system# 验证crd 是否部署完成 kubectl get crds | grep 'istio.io\|certmanager.k8s.io' | wc -l# [root@]~]# kubectl get crds | grep 'istio.io\|certmanager.k8s.io' | wc -l# 23# 部署istiohelm install install/kubernetes/helm/istio --name-template istio --namespace istio-system \ --set istio_cni.enabled=true \ --set istio-cni.cniBinDir=/apps/cni/bin \ --set istio-cni.excludeNamespaces={"istio-system,monitoring,clusterstorage,consul,kubernetes-dashboard,kube-system"} # 这几个参数不能省略 这个configmap istio-sidecar-injector 会用到# 等待部署完成# 查看部署状态[root@]~]#kubectl get svc -n istio-systemNAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGEgrafana ClusterIP 10.64.194.111 3000/TCP 20histio-citadel ClusterIP 10.64.247.166 8060/TCP,15014/TCP 20histio-egressgateway ClusterIP None 80/TCP,443/TCP,15443/TCP 20histio-galley ClusterIP 10.64.180.50 443/TCP,15014/TCP,9901/TCP 20histio-ingressgateway ClusterIP None 15020/TCP,80/TCP,443/TCP,31400/TCP,15029/TCP,15030/TCP,15031/TCP,15032/TCP,15443/TCP 20histio-pilot ClusterIP 10.64.71.214 15010/TCP,15011/TCP,8080/TCP,15014/TCP 20histio-policy ClusterIP 10.64.235.77 9091/TCP,15004/TCP,15014/TCP 20histio-sidecar-injector ClusterIP 10.64.127.238 443/TCP 20histio-telemetry ClusterIP 10.64.218.132 9091/TCP,15004/TCP,15014/TCP,42422/TCP 20hjaeger-agent ClusterIP None 5775/UDP,6831/UDP,6832/UDP 20hjaeger-collector ClusterIP 10.64.176.255 14267/TCP,14268/TCP 20hjaeger-query ClusterIP 10.64.25.179 16686/TCP 20hkiali ClusterIP 10.64.19.25 20001/TCP 20hprometheus ClusterIP 10.64.81.141 9090/TCP 20htracing ClusterIP 10.64.196.70 80/TCP 20hzipkin ClusterIP 10.64.2.197 9411/TCP 20h# 确保部署了相应的 Kubernetes pod 并且 STATUS 是 Running的:[root@]~]#kubectl get pods -n istio-systemNAME READY STATUS RESTARTS AGEgrafana-846c699c5c-xdm42 1/1 Running 0 20histio-citadel-68776b8c6f-k6dxd 1/1 Running 0 20histio-cni-node-4d2f2 1/1 Running 0 26histio-cni-node-68jzs 1/1 Running 0 26histio-cni-node-lptml 1/1 Running 0 26histio-cni-node-p74bp 1/1 Running 0 26histio-cni-node-p7v2j 1/1 Running 0 26histio-cni-node-z6mfn 1/1 Running 0 26histio-cni-node-zdzf2 1/1 Running 0 26histio-egressgateway-b488867bf-dzd6l 1/1 Running 0 20histio-galley-9795c8ff8-62cpz 1/1 Running 0 20histio-ingressgateway-54cf955579-227qt 1/1 Running 0 20histio-init-crd-10-bmndt 0/1 Completed 0 26histio-init-crd-11-rv85n 0/1 Completed 0 26histio-init-crd-12-w77hp 0/1 Completed 0 26histio-pilot-5f67fbd648-jr5wl 2/2 Running 0 20histio-policy-65fb44b85b-z2j5q 2/2 Running 2 20histio-sidecar-injector-55ff84f69f-kqxl5 1/1 Running 0 20histio-telemetry-799c785c8d-nzlf8 2/2 Running 3 20histio-tracing-6748c7c4f5-nb94f 1/1 Running 0 20hkiali-56b5466944-d7rrp 1/1 Running 0 20hprometheus-5b68448dc9-92cg2 1/1 Running 0 20h# 部署istio-cnihelm install install/kubernetes/helm/istio-cni --name-template istio-cni --namespace istio-system# 等待部署正常自动注入的话给namespace 打标签kubectl label namespace default istio-injection=enabledkubectl get namespace -L istio-injection # 删除标签 kubectl label namespace default istio-injection- # 启用策略检查 kubectl -n istio-system get cm istio -o jsonpath="{@.data.mesh}" | grep disablePolicyChecks #返回：disablePolicyChecks: true 可以修改 disablePolicyChecks: false 不修改 kubectl -n istio-system get cm istio -o jsonpath="{@.data.mesh}" | sed -e "s/disablePolicyChecks: true/disablePolicyChecks: false/" > /tmp/mesh.yaml kubectl -n istio-system create cm istio -o yaml --dry-run --from-file=mesh=/tmp/mesh.yaml | kubectl replace -f - rm -f /tmp/mesh.yaml kubectl -n istio-system get cm istio -o jsonpath="{@.data.mesh}" | grep disablePolicyChecks 测试istio 是否部署正常
以nginx 为例修改 nginx-deployment.yaml# 添加istio: ingressgatewayapiVersion: apps/v1kind: Deploymentmetadata: name: nginxspec: replicas: 2 selector: matchLabels: k8s-app: nginx template: metadata: labels: k8s-app: nginx istio: ingressgateway spec: containers: - name: nginx ############################## 修改Service---kind: ServiceapiVersion: v1metadata: labels: k8s-app: nginx istio: ingressgateway name: nginx annotations: kubernetes.io/ingress.class: traefik traefik.ingress.kubernetes.io/affinity: "true" traefik.ingress.kubernetes.io/load-balancer-method: drr "consul.hashicorp.com/service-port": "http-metrics"spec: sessionAffinity: ClientIP sessionAffinityConfig: clientIP: timeoutSeconds: 10800 selector: k8s-app: nginx istio: ingressgateway ports: - protocol: TCP port: 80 name: web - protocol: TCP port: 8080 name: vts - protocol: TCP port: 9913 name: http-metrics type: ClusterIP######################istioctl kube-inject -f nginx-deployment.yaml --injectConfigMapName istio-sidecar-injector | kubectl apply -f - -n default或者生成文件istioctl kube-inject -f nginx-deployment.yaml -o deployment-injected.yaml --injectConfigMapName istio-sidecar-injectorkubectl apply -f deployment-injected.yaml -n default# 查看是否部署正常[root@]~]#kubectl get pod -n default | grep nginxnginx-6db8f49c8c-8m2zh 3/3 Running 0 25hnginx-6db8f49c8c-d4kws 3/3 Running 0 25h
# 删除 旧ingresskubectl delete -f nginx-ingress.yaml创建 gateway 服务vi nginx-web-gateway.yamlapiVersion: networking.istio.io/v1alpha3kind: Gatewaymetadata: name: nginx-web-gateway namespace: defaultspec: selector: istio: ingressgateway # use Istio default gateway implementation servers: - port: number: 80 name: web protocol: HTTP hosts: - "nginx.xxxx.com"---apiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: nginx-web namespace: defaultspec: hosts: - "nginx.xxxx.com" gateways: - nginx-web-gateway http: - match: - port: 80 route: - destination: host: nginx weight: 100---# 后端转发负载均衡方式# 参考https://istio.io/zh/docs/reference/config/istio.networking.v1alpha3/apiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: nginx-ratings namespace: defaultspec: host: nginx trafficPolicy: loadBalancer: consistentHash: httpCookie: name: user ttl: 0s# 执行kubectl apply -f nginx-web-gateway.yaml# 查看是否能对外访问[root@]~]#kubectl get pod -o wide -n istio-system | grep istio-ingressgatewayistio-ingressgateway-54cf955579-227qt 1/1 Running 0 21h 10.65.5.52 node03 # host 绑定IP10.65.5.52 nginx.xxxx.com# 查看浏览器是否打开 # 能正常打开#这个服务还不能对外提供访问修改nginx Ingress 使服务能对外提供服务# 修改Ingressvi nginx-ingress.yamlapiVersion: extensions/v1beta1kind: Ingressmetadata: name: nginx namespace: istio-system # istio 网关所在的命名空间 annotations: kubernetes.io/ingress.class: traefik traefik.frontend.rule.type: PathPrefixStripspec: rules: - host: nginx.xxxx.com http: paths: - path: / backend: serviceName: istio-ingressgateway # 现在服务变成 istio 网关服务 servicePort: 80# 删除刚刚绑定host 直接dns 解析访问已经正常走Ingressnginx 日志 192.168.20.94 - [10/Sep/2019:16:02:20 +0800] nginx.xxxx.com "GET / HTTP/1.1" 304 0 "" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0" "192.168.20.94,192.168.30.35" 127.0.0.1 ups_add: ups_resp_time: request_time: 0.000 ups_status: request_body: upstream_response_length [] # istio-ingressgateway 服务日志 [2019-09-11T09:30:30.820Z] "GET / HTTP/1.1" 304 - "-" "-" 0 0 0 0 "192.168.20.94,192.168.30.35" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36" "34555d82-f202-4ae0-8896-f87105c562e1" "nginx.xxxx.com" "10.65.5.30:80" outbound|80||nginx.default.svc.xxxx.local - 10.65.5.52:80 192.168.30.35:46178 - istio-ingressgateway 可以配置多个域名 apiVersion: networking.istio.io/v1alpha3kind: Gatewaymetadata: name: zentao-web-gateway namespace: zentaospec: selector: istio: ingressgateway # use Istio default gateway implementation servers: - port: number: 80 name: http protocol: HTTP hosts: - "zentao.xxxx.com"---apiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: zentao-web namespace: zentaospec: hosts: - "zentao.xxxx.com" gateways: - zentao-web-gateway http: - match: - port: 80 route: - destination: host: zentao weight: 100---apiVersion: networking.istio.io/v1alpha3kind: DestinationRulemetadata: name: zentao-ratings namespace: zentaospec: host: zentao trafficPolicy: loadBalancer: consistentHash: httpCookie: name: user ttl: 0s# Ingress apiVersion: extensions/v1beta1kind: Ingressmetadata: name: zentao namespace: istio-system annotations: kubernetes.io/ingress.class: traefik traefik.frontend.rule.type: PathPrefixStripspec: rules: - host: zentao.xxxx.com http: paths: - path: / backend: serviceName: istio-ingressgateway servicePort: 80# 非80 端口提供服务#代理nginx metrics 监控apiVersion: networking.istio.io/v1alpha3kind: Gatewaymetadata: name: metrics-gateway namespace: defaultspec: selector: istio: ingressgateway # use Istio default gateway implementation servers: - port: number: 30080 name: http-metrics protocol: HTTP hosts: - "*"---apiVersion: networking.istio.io/v1alpha3kind: VirtualServicemetadata: name: metrics-tcp namespace: defaultspec: hosts: - "*" gateways: - metrics-gateway http: - match: - port: 30080 route: - destination: host: nginx port: number: 9913 weight: 100# 查看gateway pod 30080 端口是否监听[root@]~]#kubectl get pod -o wide -n istio-system | grep istio-ingressgatewayistio-ingressgateway-54cf955579-227qt 1/1 Running 0 21h 10.65.5.52 node03 # 进入POD[root@]~]#kubectl exec -ti istio-ingressgateway-54cf955579-227qt /bin/bash -n istio-systemroot@istio-ingressgateway-54cf955579-227qt:/# netstat -tnlpActive Internet connections (only servers)Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program nametcp 0 0 127.0.0.1:15000 0.0.0.0:* LISTEN 98/envoytcp 0 0 0.0.0.0:30080 0.0.0.0:* LISTEN 98/envoytcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 98/envoytcp 0 0 0.0.0.0:15090 0.0.0.0:* LISTEN 98/envoytcp6 0 0 :::15020 :::* LISTEN 1/pilot-agent#30080 端口已经监听ip:端口访问http://10.65.5.52:30080/metrics 能够正常访问istio-ingressgateway 打印日志[2019-09-11T09:43:42.947Z] "GET /favicon.ico HTTP/1.1" 200 - "-" "-" 0 152 1 1 "192.168.20.94" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36" "1c2b2699-6167-4b9f-ba7a-4071216dc742" "10.65.5.52:30080" "10.65.6.216:9913" outbound|9913||nginx.default.svc.xxxx.local - 10.65.5.52:30080 192.168.20.94:63024 -这样就能使用haproxy + dns 对外提供tcp 服务 如果使用ClusterIP 一定要修改istio-ingressgateway service 对外暴露IP 以daemonset 方式部署最好使用hostNetwork: true 这样TCP 代理可以直接hostip 访问代理端口 代替Ingress直接对外访问 # istio-1.2.5/samples 为示例 可以测试做金丝雀发布清理 istio
helm uninstall istio --namespace istio-systemhelm uninstall istio-init --namespace istio-systemhelm uninstall istio-cni --namespace istio-systemkubectl delete ns istio-system
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