系列文章：
容器 & 服务：开篇，压力与资源
前言
jenkins 是常用的开源持续继承工具，现在所在的工作场景，也是使用 jenkins 进行基于 github 代码的拉取、打包、构建、部署的一系列流程，并结合了容器和函数计算实现金丝雀部署。本文先从基础的 jenkins 环境搭建开始。
一 jenkins 本地安装部署
jenkins 官网的下载速度太慢，可使用下面镜像：
清华镜像
jenkins ci
官网文档，jenkins入门，下载 jenkins.war 之后，使用下面命令启动和访问：
1.下载 Jenkins.
2.打开终端进入到下载目录.
3.运行命令 java -jar jenkins.war --httpPort=8080.
4.打开浏览器进入链接 http://localhost:8080.
5.按照说明完成安装.
按照说明，java -jar jenkins.war --httpPort=8080 后控制台输出如下：
-rw-r--r--@ 1 qingclass staff 66175731 2 7 16:28 jenkins.warbogon:jenkins qingclass$ bogon:jenkins qingclass$ bogon:jenkins qingclass$ java -jar jenkins.war --httpPort=8080Running from: /Users/qingclass/develop/mine/projects/container/jenkins/jenkins.warwebroot: $user.home/.jenkins2021-02-07 08:28:58.638+0000 [id=1] INFO org.eclipse.jetty.util.log.Log#initialized: Logging initialized @450ms to org.eclipse.jetty.util.log.JavaUtilLog2021-02-07 08:28:58.751+0000 [id=1] INFO winstone.Logger#logInternal: Beginning extraction from war file2021-02-07 08:29:00.126+0000 [id=1] WARNING o.e.j.s.handler.ContextHandler#setContextPath: Empty contextPath2021-02-07 08:29:00.180+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: jetty-9.4.25.v20191220; built: 2019-12-20T17:00:00.294Z; git: a9729c7e7f33a459d2616a8f9e9ba8a90f432e95; jvm 1.8.0_212-b102021-02-07 08:29:00.447+0000 [id=1] INFO o.e.j.w.StandardDescriptorProcessor#visitServlet: NO JSP Support for /, did not find org.eclipse.jetty.jsp.JettyJspServlet2021-02-07 08:29:00.486+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: DefaultSessionIdManager workerName=node02021-02-07 08:29:00.486+0000 [id=1] INFO o.e.j.s.s.DefaultSessionIdManager#doStart: No SessionScavenger set, using defaults2021-02-07 08:29:00.491+0000 [id=1] INFO o.e.j.server.session.HouseKeeper#startScavenging: node0 Scavenging every 600000ms2021-02-07 08:29:00.768+0000 [id=1] INFO hudson.WebAppMain#contextInitialized: Jenkins home directory: /Users/qingclass/.jenkins found at: $user.home/.jenkins2021-02-07 08:29:02.331+0000 [id=1] INFO o.e.j.s.handler.ContextHandler#doStart: Started w.@1cf2fed4{Jenkins v2.220,/,file:///Users/qingclass/.jenkins/war/,AVAILABLE}{/Users/qingclass/.jenkins/war}2021-02-07 08:29:02.363+0000 [id=1] INFO o.e.j.server.AbstractConnector#doStart: Started ServerConnector@1a4927d6{HTTP/1.1,[http/1.1]}{0.0.0.0:8080}2021-02-07 08:29:02.363+0000 [id=1] INFO org.eclipse.jetty.server.Server#doStart: Started @4176ms2021-02-07 08:29:02.364+0000 [id=23] INFO winstone.Logger#logInternal: Winstone Servlet Engine running: controlPort=disabled
2021-02-07 08:29:03.159+0000 [id=30] INFO jenkins.InitReactorRunner$1#onAttained: Started initialization2021-02-07 08:29:03.174+0000 [id=50] INFO jenkins.InitReactorRunner$1#onAttained: Listed all plugins2021-02-07 08:29:04.066+0000 [id=37] INFO jenkins.InitReactorRunner$1#onAttained: Prepared all plugins2021-02-07 08:29:04.071+0000 [id=37] INFO jenkins.InitReactorRunner$1#onAttained: Started all plugins2021-02-07 08:29:04.076+0000 [id=45] INFO jenkins.InitReactorRunner$1#onAttained: Augmented all extensions2021-02-07 08:29:04.637+0000 [id=50] INFO jenkins.InitReactorRunner$1#onAttained: System config loaded2021-02-07 08:29:04.637+0000 [id=40] INFO jenkins.InitReactorRunner$1#onAttained: System config adapted2021-02-07 08:29:04.637+0000 [id=48] INFO jenkins.InitReactorRunner$1#onAttained: Loaded all jobs2021-02-07 08:29:04.638+0000 [id=48] INFO jenkins.InitReactorRunner$1#onAttained: Configuration for all jobs updated2021-02-07 08:29:04.647+0000 [id=64] INFO hudson.model.AsyncPeriodicWork#lambda$doRun$0: Started Download metadata2021-02-07 08:29:04.656+0000 [id=64] INFO hudson.util.Retrier#start: Attempt #1 to do the action check updates server2021-02-07 08:29:05.281+0000 [id=31] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@b824f1b: display name [Root WebApplicationContext]; startup date [Sun Feb 07 16:29:05 CST 2021]; root of context hierarchy2021-02-07 08:29:05.281+0000 [id=31] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@b824f1b]: org.springframework.beans.factory.support.DefaultListableBeanFactory@5dd6b4ad2021-02-07 08:29:05.290+0000 [id=31] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@5dd6b4ad: defining beans [authenticationManager]; root of factory hierarchy2021-02-07 08:29:05.427+0000 [id=31] INFO o.s.c.s.AbstractApplicationContext#prepareRefresh: Refreshing org.springframework.web.context.support.StaticWebApplicationContext@11ce086b: display name [Root WebApplicationContext]; startup date [Sun Feb 07 16:29:05 CST 2021]; root of context hierarchy2021-02-07 08:29:05.427+0000 [id=31] INFO o.s.c.s.AbstractApplicationContext#obtainFreshBeanFactory: Bean factory for application context [org.springframework.web.context.support.StaticWebApplicationContext@11ce086b]: org.springframework.beans.factory.support.DefaultListableBeanFactory@79f651d32021-02-07 08:29:05.427+0000 [id=31] INFO o.s.b.f.s.DefaultListableBeanFactory#preInstantiateSingletons: Pre-instantiating singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@79f651d3: defining beans [filter,legacy]; root of factory hierarchy2021-02-07 08:29:05.561+0000 [id=31] INFO jenkins.install.SetupWizard#init:
***************************************************************************************************************************************************************************************
Jenkins initial setup is required. An admin user has been created and a password generated.Please use the following password to proceed to installation:
1072ca47a779473dbad450aee6d6946e
This may also be found at: /Users/qingclass/.jenkins/secrets/initialAdminPassword
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浏览器访问，注意，页面会提示等待初始化，结束后会自动跳转到首页，这个过程会花 1-2 分钟时间，并非出错。
待弹出上面这个输入秘钥页面时，输入上面的 1072ca47a779473dbad450aee6d6946e 完成安装，进入后续操作即可。
完成后，进入熟悉的页面：
二 docker 下的安装部署
注，这里不再介绍 docker 的安装方式，默认已完成本地的 docker 部署。
笔者使用的 docker 版本如下：
flamingskys:logs $ docker --versionDocker version 19.03.5, build 633a0ea
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在 docker 中下载并安装 jenkins，可参照说明: docker中安装jenkins，使用镜像： jenkinsci/blueocean，这是来自 Docker Hub repository 的 jenkins Docker 镜像。
安装步骤：
1、使用下面命令直接运行：
docker run -p 8080:8080 jenkinsci/blueocean
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2、run 成功后，当看到下面输出时，代表已经启动完成。浏览器中通过 http://localhost:8080 端口访问，与本地部署相同：密码： d71cb009aa2e4343896110ccbc86778d
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