https://segment.com/blog/goodbye-microservices/ 核心服務 不見得要微服務化，因為共同開發上，減少一些問題 In early 2017 we reached a tipping point with a core piece of Segment’s product. It seemed as if we were falling from the microservices tree, hitting every branch on the way down. Instead of enabling us to move faster, the small team found themselves mired in exploding complexity. Essential benefits of this architecture became burdens. As our velocity plummeted, our defect rate exploded. Eventually, the team found themselves unable to make headway, with 3 full-time engineers spending most of their time just keeping the system alive. Something had to change. This post is the story of how we took a step back and embraced an approach that aligned well with our product requirements and needs of the team. ...

normal k8s https://sueboy.blogspot.com/2019/11/kubernetes-nodeport.html namespace docker-registry { "kind": "Namespace", "apiVersion": "v1", "metadata": { "name": "docker-registry", "labels": { "name": "test-dev" } } } secret.yml ID/PWD:username/password tls:cn=docker-registry apiVersion: v1 kind: Secret metadata: name: registry-tls namespace: docker-registry type: Opaque data: tls.crt: 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 tls.key: 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 HTPASSWD: dXNlcm5hbWU6JDJ5JDA1JGprbU5CSm1DVTYyV0pKc0tqcWx3RC5BQmpLcUswc2R0SU9lZ29kb3VrQzFpR0owc05ENjhD configmap.yml apiVersion: v1 kind: ConfigMap metadata: name: docker-registry namespace: docker-registry data: registry-config.yml: | version: 0.1 log: fields: service: registry storage: delete: enabled: true cache: blobdescriptor: inmemory filesystem: rootdirectory: /var/lib/registry http: addr: :5000 host: https://docker-registry:30500 secret: asecretforlocaldevelopment headers: X-Content-Type-Options: [nosniff] Access-Control-Allow-Origin: ['*'] Access-Control-Allow-Methods: ['HEAD', 'GET', 'OPTIONS', 'DELETE'] Access-Control-Allow-Headers: ['Authorization'] Access-Control-Max-Age: [1728000] Access-Control-Allow-Credentials: [true] Access-Control-Expose-Headers: ['Docker-Content-Digest'] tls: certificate: /cert/x509/public key: /cert/x509/private auth: htpasswd: realm: basic-realm path: /auth/htpasswd health: storagedriver: enabled: true interval: 10s threshold: 3 deployment.yml ...

Part 1 https://medium.com/@cloudsanchen/ci-cd-with-drone-kubernetes-and-helm-part-1-69c147046ffa Part 2 https://medium.com/@cloudsanchen/ci-cd-with-drone-kubernetes-and-helm-part-2-65b43d790b30 part 3 https://medium.com/@cloudsanchen/%E6%95%99%E5%AD%B8-%E7%94%A8drone-kubernetes%E8%B7%9Fhelm-%E4%BB%A5%E5%8F%8Arbac%E4%BE%86%E5%BB%BA%E7%BD%AE%E4%BD%A0%E7%9A%84ci-cd%E6%B5%81%E7%A8%8B-part-3-de7273591bb

kubectl cluster-info

https://www.mobile01.com/topicdetail.php?f=291&t=5107288&p=1147#11470 上面的文章有提到融資、融券，其實這也是金融工具之一，融資說穿了就是向券商借錢，自已出40%的錢，券商出60%，所謂的融資斷頭就是股票價格跌到你自已出的錢賠光，這時券商就會強制賣出，在你持有期間你還要融資利息給券商大概4~6.x%都有可能，而且因為你槓桿放大2.5倍，你的交易手續費及交易稅也要放大2.5倍，這也是為什麼很多老手都建議不要融資玩股票，因為你很容易就會出局，而且持有的成本太高，會高過你的每年在股市中得到的現金殖利率。 融券是你付出股價九成的保證金，去放空個股，由於股價向上是沒有限制的，所以融券很容易會被軋爆，例如之前我看準放空宏碁的借券賣出兩、三年的成本介於1214，1416，我算準漲到26以上就會產生骨牌效應，空方軋空方，一路軋到33.x，只要軋到這價位，在這兩三年12~16元放空宏碁的人全部都得出局，這也是為啥很多版友賺到不少錢的原因，當初把空方軋到山頂上，空方不得不去回補，多不合理的價位空方都得吞，就算接下來股價跌下來，空方也沒救了，因為都已補了，錢就賠光了。 當市場上很多投資人不懂這些金融工具的弱點，所以很容易在這些金融工具的弱點下出局，但其實融資及融券也是能使用的，但前提是你的經驗夠老道，我舉個例，如果你今天可以一直在市場上賺錢，連續的賺，這時放大槓桿行不行？當然行，因為你都是常勝軍了，你投資都一直賺錢了，你當然放大槓桿也有機會能賺錢，但當你放大槓桿後，你要面對的就是較高的融資利息，及高2.5倍的交易稅及手續費，所以一般來說，融資在使用時都是短期上使用不會硬凹抱一年 ，抱兩年，抱三年的，當初我在開始賺錢後，我也是有使用過1/4金額的融資，也就是說我有150萬，我會操作200萬，當資金再變大時，就變1/10，也就是說500萬中有50萬是融資，而且這融資都是最後勝負已分時才出場的，到了資金水至1000萬以上後，我就沒有再使用過融資。 很多散戶連現股操作都贏不了錢，當面臨槓桿放大2.5倍，手續費，交易稅成本增加2.5倍，再加上持有時間愈久會產生4~6.x%的融資利息，種種不利的的因素在使用融資時一一顯現，試想一件很簡單的事，你在沒有這些不利的情況都贏不了了，更何況面對這些不利的情況下，你如何能贏，而且對持有現股的人只要基本面好，股價一時跌到哪都沒關係，但對融資戶來說，股價只要跌了3成左右，券商就會打電話來要你補錢，只要某個股價出現一兩天，不論多不合理，你就會被券商融資斷頭，斷完頭後，就算股價回升，那也不關你的事，但如果持有現股，股價一兩天的不合理低，你也不會有事，放了一年後，說不定股價就漲回來了，還賺了一年的股息(前提是基本面不變)。 融券在賺錢前我也有用過，因為使用過，所以對被軋爆及融券強制回補的規則也有所了解，我寫了這一篇的原因不是鼓勵大家使用融資或融券，而是你要了解這些金融工具，就算你不使用它，你也要了解他的優缺點，因為市場上很人會使用，你了解這些金融工具的優缺點時，你就間接的了解使用這些金融工具人的弱點，你何時該去踹它一腳讓他融資斷頭，何時該去向上拉最後一波讓他融券軋爆，當你了解他們弱點時，你就容易能抓住股價在上漲及下跌時這些人心理的變化，他們何時壓力很大，我說過，股市就是人與人之間的對戰，短線更是明顯，如果你這一些金融工具都不了解，每天就僅能幻想著股價快快漲，股價快快跌，你在對股價及局勢做判斷時就一點依據都沒有，所以準確率就會相對的低。 大家應該會發覺一件事，如果我全力在做某一檔股票時，我對股價的趨勢及判斷會相對的準確，因為那時觀察的就會很深入，會考慮融資、融券，借券，三大法人進出，權証買賣這些原因，在營收及基本面出來時，依據之前財報內容外資群會有的反應先行做預測，這些因素考慮的愈多，準確性就會愈高，最近我投入的資金水位不高， 我對於猜中美貿易戰的結果也不會有太大的興趣，我認為我的優勢在分析股個，所以猜中美貿易戰的結果這種局我就不會跟，我寧願中美貿易戰結束後，所有個股股價回到某一個水位，這時再來以基本面和別的投資者決勝負，我認為這才是我比別人有優勢的地方。