• <button id="4os99"><acronym id="4os99"><menuitem id="4os99"></menuitem></acronym></button>
  • <th id="4os99"><pre id="4os99"></pre></th>
  • <em id="4os99"><tr id="4os99"><kbd id="4os99"></kbd></tr></em>
  • <form id="4os99"></form>
      1. <progress id="4os99"></progress>
        登錄
        立即咨詢

        語言選擇

        諧云 諧云
        在這里探索云原生
        Cilium 流量治理功能與部署實踐
        2022年12月14日

        一、Cilium 概述

        Cilium是一個具備API感知的網絡和安全的開源軟件,用于透明保護使用Docker和Kubernetes等Linux容器管理平臺部署的應用程序服務之間的網絡連接。Cilium的基礎是一種稱為BPF的新Linux內核技術,該技術可在Linux自身內部動態插入強大的安全可見性和控制邏輯。

        由于BPF在Linux內核中運行,因此可以應用和更新Cilium安全策略,而無需更改應用程序代碼或容器配置。與傳統的sidecar代理模式相比,不需要在應用容器邊上單獨部署一個流量代理的容器??梢曰贚inux內核收集網絡包信息,利用eBPF程序編寫包過濾的規則,減少Linux內核網絡棧開銷。

        二、組件及安裝方式

        包含cilium、hubble、etcd和eBPF四個部分。其中eBPF是Linux 高版本內核自帶的特性,無需額外部署。從圖中可以看出,以DaemonSet的方式在每一個k8s Node部署了一個Agent,并且與相應的控制面Cilium Operator交互(實例數至少一個)。Hubble提供了一些基礎監控的功能,并提供了一個可視化的UI界面,可以基于namespace,協議類型,入流出流等進行一些過濾。在沒有service請求的情況下,UI界面下無法展示。

        Cilium各組件交互

        Mesh 分支的安裝:

        [1] 系統要求

        Linux Kernel>=4.9.17

        clang+LLVM>=10.0

        不部署calico和flannel,將cilium作為CNI.

        [2] cilium install --version -service-mesh:v1.11.0-beta.1 --config enable-envoy-config=true --kube-proxy-replacement=probe --datapath-mode=vxlan

        [3] cilium hubble enable --ui

        三、官方 mesh demo 功能總結

        1. 作為CNI,提供了CiliumNetworkPolicy。

        2.  CiliumEnvoyConfig 可以定義負載均衡策略,重寫訪問路徑。

        3.  kafka topic的讀寫也可以通過CiliumNetWorkPolicy定義。

        4. ingress與cilium融合需要k8s1.19+,external-ip需要云廠商提供LB能力,否則會一直pending。支持以 RESTFUL API方式從集群外訪問 Service。

        5. 支持以 4 層的方式訪問 Service,例如通過 IP+Port。包括 externalIPs Service、LoadBalancer Service。

        https://github.com/cilium/cilium-service-mesh-beta

        CiliumEnvoyConfig路徑重寫演示

        CiliumNetWorkPolicy拒絕策略演示

        正常情況:

        [root@master demo]# kubectl exec tiefighter -- curl -s -XPOST deathstar.default.svc.cluster.local/v1/request-landing

        Ship landed

        應用拒絕策略后:

        四、融合istio部署實踐

        圖中的reviews各個版本之間的負載均衡是通過Virtualservice和Destinationrule實現。通過cilium安裝istio需要部署融合版的istio,一般只有特定的namespace下的流量會被istio接管,從而可以復用istio已有的CRD及功能。

        兼容istio后可以使用的CRD

        05

        展望

         

        1. CiliumEnvoyConfig 支持的envoy配置有待擴展

        2. 多租戶場景:支持NodePort的單節點暴露,即多租戶隔離。

        3. 替代istio 控制面的選擇有待確定:Istio , SMI.當前方案直接安裝istiod

        4. 單個pod多網卡的支持,以及和其他網絡插件的兼容

        5. 基于CiliumEnvoyConfig開發一系列更加用戶友好的CRD,便于配置

        添加評論
        諧云
        2024年03月02日
        添加回復
        回復:Hi, i think that i saw you visited my site thus i came to “return the favor”.I'm trying to find things to enhance my site!I suppose its ok to use some of your ideas!!
        添加回復
        回復:This information is invaluable. Where can I find out more?
        添加回復
        回復:Wonderful blog! Do you have any suggestions for aspiring writers? I'm hoping to start my own website soon but I'm a little lost on everything. Would you suggest starting with a free platform like Wordpress or go for a paid option? There are so many choices out there that I'm completely confused .. Any ideas? Many thanks!
        添加回復
        回復:Thanks on your marvelous posting! I quite enjoyed reading it, you are a great author. I will always bookmark your blog and will come back very soon. I want to encourage you to definitely continue your great posts, have a nice weekend!
        添加回復
        回復:I'm impressed, I have to admit. Rarely do I encounter a blog that's both educative and entertaining, and let me tell you, you have hit the nail on the head. The issue is an issue that too few folks are speaking intelligently about. Now i'm very happy that I came across this in my hunt for something relating to this.
        添加回復
        回復:Having read this I believed it was very enlightening. I appreciate you taking the time and energy to put this article together. I once again find myself spending a significant amount of time both reading and posting comments. But so what, it was still worthwhile!
        添加回復
        回復:Write more, thats all I have to say. Literally, it seems as though you relied on the video to make your point. You definitely know what youre talking about, why throw away your intelligence on just posting videos to your blog when you could be giving us something informative to read?
        添加回復
        回復:Every weekend i used to pay a quick visit this site, because i want enjoyment, for the reason that this this web page conations really good funny information too.
        添加回復
        回復:Terrific article! This is the kind of info that are meant to be shared across the web. Shame on Google for now not positioning this publish higher! Come on over and talk over with my website . Thanks =)
        添加回復
        回復:This website was... how do I say it? Relevant!! Finally I have found something which helped me. Kudos!
        添加回復
        回復:Its not my first time to visit this website, i am visiting this site dailly and take nice data from here everyday.
        添加回復
        回復:Hi there every one, here every person is sharing such know-how, so it's good to read this website, and I used to pay a visit this website everyday.
        添加回復
        回復:fantastic points altogether, you simply received a brand new reader. What may you recommend about your put up that you simply made some days ago? Any positive?
        添加回復
        回復:I am really loving the theme/design of your site. Do you ever run into any internet browser compatibility issues? A handful of my blog readers have complained about my website not working correctly in Explorer but looks great in Opera. Do you have any suggestions to help fix this problem?
        添加回復
        回復:If you wish for to get a great deal from this post then you have to apply these methods to your won website.
        添加回復
        回復:Hi there! This is my 1st comment here so I just wanted to give a quick shout out and tell you I genuinely enjoy reading your articles. Can you suggest any other blogs/websites/forums that go over the same topics? Thanks a ton!
        添加回復
        回復:Your style is really unique in comparison to other people I have read stuff from. Many thanks for posting when you've got the opportunity, Guess I'll just bookmark this site.
        添加回復
        回復:I read this piece of writing fully regarding the difference of most up-to-date and preceding technologies, it's amazing article.
        添加回復
        回復:Hey I know this is off topic but I was wondering if you knew of any widgets I could add to my blog that automatically tweet my newest twitter updates. I've been looking for a plug-in like this for quite some time and was hoping maybe you would have some experience with something like this. Please let me know if you run into anything. I truly enjoy reading your blog and I look forward to your new updates.
        添加回復
        回復:Good day I am so thrilled I found your blog, I really found you by mistake, while I was searching on Bing for something else, Anyways I am here now and would just like to say thanks a lot for a fantastic post and a all round interesting blog (I also love the theme/design), I don’t have time to go through it all at the minute but I have bookmarked it and also added in your RSS feeds, so when I have time I will be back to read more, Please do keep up the awesome work.
        添加回復
        回復:You could certainly see your skills in the work you write. The world hopes for more passionate writers like you who aren't afraid to say how they believe. All the time follow your heart.
        添加回復
        回復:Hi there! Someone in my Myspace group shared this website with us so I came to take a look. I'm definitely loving the information. I'm bookmarking and will be tweeting this to my followers! Exceptional blog and great design.
        添加回復
        回復:My brother suggested I might like this blog. He was totally right. This post truly made my day. You can not imagine just how much time I had spent for this information! Thanks!
        添加回復
        諧云
        2024年03月02日
        添加回復
        諧云 CpjJwWHV
        2024年03月02日
        555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        回復CpjJwWHV:
        添加回復
        回復CpjJwWHV:
        添加回復
        諧云 CpjJwWHV
        2024年03月02日
        555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        gBqsPxAZ回復CpjJwWHV:555
        添加回復
        回復CpjJwWHV:
        添加回復
        回復CpjJwWHV:
        添加回復
        回復CpjJwWHV:
        添加回復
        回復CpjJwWHV:
        添加回復
        回復CpjJwWHV:
        添加回復
        申請合作咨詢
        您可以通過此表單填寫您的合作意向,我們將會盡快與您取得聯系!
        或撥打電話0571-87607309
        *姓名:
        *手機:
        *郵箱:
        備注:
        備注:
        登錄
        登錄
        注冊賬號 忘記密碼
        注冊
        {{ code.btn }}
        注冊
        立即登錄 忘記密碼?
        忘記密碼
        {{ code.btn }}
        確定
        立即登錄 忘記密碼?
        立即咨詢
        欧美一级a人与免费2019|99久热精品免费观看动漫官网|久久久久国色av免费看|免费A片短视频在线观看国产