前言

禅道作为常用的项目管理工具,在很多公司都有使用。其官方文档中介绍的部署方式主要是安装LAMP集成环境的方式来部署的,虽然其官方也提供了Docker部署,但是他提供的Docker镜像(easysoft/zentao)是集成了httpd+php+mysql在里面的,不满足容器的最佳实践原则。

在容器时代,禅道所推崇的部署方式显然显得比较的落后了,其官方更没有关于部署到Kubernetes的相关文档。社区论坛是有一些提问的,但是提供的方案大多都是使用 easysoft/zentao 这个仓的镜像。

本来是打算自己制作镜像的,在翻阅资料的时候发现 easysoft/quickon-zentao 这个仓,看了一下是满足我的需求的。

部署架构

zetao.drawio.png

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Rancher创建的Kubernetes集群(RKE),kubernetes版本为1.24.x。在Rancher上安装了Monitoring应用,无法查看Pod监控指标数据。Grafana显示为no data

grafana-pod-nodata.png

在Prometheus界面上通过PromQL查询,发现指标数据缺失container、image、name、namespace、pod等标签,如下:

prom-query.png

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在linux中,解析json一般都会使用jq,jq固然好用,但是要额外安装就不太友好了。如果你在网上搜索通过shell来解析json的方法,你会发现都是些啥玩意儿。既然如此,那就动手撸一个吧。

有以下特性:

  • 她能兼容jq的路径表达式

    • .name
    • .[0].name
    • .[0][0].name
    • ...
  • 纯shell,其实用的是awk。纯bash不好搞,就曲线救一下国呗

代码如下,拿去不谢。转载请标出处。转载请标出处。转载请标出处。

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正在运行的gitlab集群突然抽风,具体故障现象如下。

环境信息:gitlab部署在k8s集群内,采用官方helm包部署,gitlab版本为14.10.x。

故障现象:项目相关的操作有几率报错

  • 新建:创建项目有几率失败,并报错
  • 查看项目:进入项目内,有几率刷不出代码树,并报错,报错信息 An error occurred while fetching folder content.
  • 删除项目:项目删不掉

查看Gitaly服务的日志,发现是Praefect服务调用Gitaly的健康检查接口报错,错误关键信息为 PermissionDenied。

{"correlation_id":"01G7BX3DR59H35EYHPMKHNVBC0","error":"rpc error: code = PermissionDenied desc = permission denied","grpc.code":"PermissionDenied","grpc.meta.auth_version":"v2","grpc.meta.deadline_type":"unknown","grpc.meta.method_type"
:"unary","grpc.method":"Check","grpc.request.deadline":"2022-07-07T08:39:54.207","grpc.request.fullMethod":"/grpc.health.v1.Health/Check","grpc.request.payload_bytes":0,"grpc.response.payload_bytes":0,"grpc.service":"grpc.health.v1.Healt
h","grpc.start_time":"2022-07-07T08:39:53.208","grpc.time_ms":0.285,"level":"warning","msg":"finished unary call with code PermissionDenied","peer.address":"10.42.1.134:51266","pid":12,"span.kind":"server","system":"grpc","time":"2022-07-07T08:39:53.208Z"}
{"correlation_id":"01G7BX3EQJZJFT996MD2KF2HXW","error":"rpc error: code = PermissionDenied desc = permission denied","grpc.code":"PermissionDenied","grpc.meta.auth_version":"v2","grpc.meta.deadline_type":"unknown","grpc.meta.method_type":"unary","grpc.method":"Check","grpc.request.deadline":"2022-07-07T08:39:55.212","grpc.request.fullMethod":"/grpc.health.v1.Health/Check","grpc.request.payload_bytes":0,"grpc.response.payload_bytes":0,"grpc.service":"grpc.health.v1.Health","grpc.start_time":"2022-07-07T08:39:54.213","grpc.time_ms":0.201,"level":"warning","msg":"finished unary call with code PermissionDenied","peer.address":"10.42.1.134:51266","pid":12,"span.kind":"server","system":"grpc","time":"2022-07-07T08:39:54.213Z"}

*** /var/log/gitaly/gitaly_ruby_json.log ***
{"type":"gitaly-ruby","grpc.start_time":"2022-07-07T08:39:53Z","grpc.time_ms":0.286,"grpc.code":"OK","grpc.method":"Check","grpc.service":"grpc.health.v1.Health","pid":35,"correlation_id":"c486ca8b2bbc3eb6736d533c38cf6017","time":"2022-07-07T08:39:53.642Z"}
{"type":"gitaly-ruby","grpc.start_time":"2022-07-07T08:39:53Z","grpc.time_ms":17.012,"grpc.code":"OK","grpc.method":"Check","grpc.service":"grpc.health.v1.Health","pid":36,"correlation_id":"71bff8c80424d633989f5daeb29111c3","time":"2022-07-07T08:39:53.658Z"}

*** /var/log/gitaly/gitaly.log ***
{"correlation_id":"01G7BX3FPZ8BTMCA0RY5754JGJ","error":"rpc error: code = PermissionDenied desc = permission denied","grpc.code":"PermissionDenied","grpc.meta.auth_version":"v2","grpc.meta.deadline_type":"unknown","grpc.meta.method_type":"unary","grpc.method":"Check","grpc.request.deadline":"2022-07-07T08:39:56.217","grpc.request.fullMethod":"/grpc.health.v1.Health/Check","grpc.request.payload_bytes":0,"grpc.response.payload_bytes":0,"grpc.service":"grpc.health.v1.Health","grpc.start_time":"2022-07-07T08:39:55.218","grpc.time_ms":0.135,"level":"warning","msg":"finished unary call with code PermissionDenied","peer.address":"10.42.1.134:51266","pid":12,"span.kind":"server","system":"grpc","time":"2022-07-07T08:39:55.218Z"}
{"correlation_id":"01G7BX3GPCRD1RPMN7F3WN6X14","error":"rpc error: code = PermissionDenied desc = permission denied","grpc.code":"PermissionDenied","grpc.meta.auth_version":"v2","grpc.meta.deadline_type":"unknown","grpc.meta.method_type":"unary","grpc.method":"Check","grpc.request.deadline":"2022-07-07T08:39:57.222","grpc.request.fullMethod":"/grpc.health.v1.Health/Check","grpc.request.payload_bytes":0,"grpc.response.payload_bytes":0,"grpc.service":"grpc.health.v1.Health","grpc.start_time":"2022-07-07T08:39:56.223","grpc.time_ms":0.189,"level":"warning","msg":"finished unary call with code PermissionDenied","peer.address":"10.42.1.134:51266","pid":12,"span.kind":"server","system":"grpc","time":"2022-07-07T08:39:56.223Z"}

解决:服务器之间做好时间同步就好了

官方issue: Permission denied between Gitlab and Praefect

1 环境介绍

虽然 kubeadm, kops, kubespray 以及 rke, kubesphere 等工具可以快速部署 K8s 集群,但是依然会有很多人热衷与使用二进制部署 K8s 集群。

二进制部署可以加深对 K8s 各组件的理解,可以灵活地将各个组件部署到不同的机器,以满足自身的要求。还可以生成一个超长时间自签证书,比如 99 年,免去忘记更新证书过期带来的生产事故。

本文基于当前(2021-12-31)最新版本 K8s 1.23.1,总体和网上的 1.20,1.22 等版本的部署方式没有太大的区别,主要参考了韩先超老师的 K8s 1.20 版本的二进制部署教程。

另外,我的环境是使用 m1 芯片的 macbook 运行的 ubuntu 20.04 TLS 虚拟机搭建,因此本次环境搭建 K8s 是基于 arm64 架构的。

1.0 书写约定

  • 命令行输入,均以 符号表示
  • 注释使用 #// 表示
  • 执行命令输出结果,以空行分隔

1.1 规划

角色主机名IP组件
master nodeubuntu-k8s-master-0110.211.55.4etcd, kube-apiserver, kube-controller-manager,
kube-scheduler, kube-proxy, kubelet
worker nodeubuntu-k8s-worker-0110.211.55.5kubelet, kube-proxy

1.2 环境配置

  • 设置主机名

    # 10.211.55.4 主机
    ➜ sudo hostnamectl set-hostname ubuntu-k8s-master-01
    # 10.211.55.5 主机
    ➜ sudo hostnamectl set-hostname ubuntu-k8s-worker-01

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