通过代码仓库和可视化流程图方式构建，代码都拉取不到

`
No credentials specified

Cloning repository https://github.com/kubesphere/devops-java-sample.git

git init /home/jenkins/agent/workspace/project-WlBD2BJkLoJV/demo1 # timeout=10
Fetching upstream changes from https://github.com/kubesphere/devops-java-sample.git
git –version # timeout=10
git fetch –tags –progress https://github.com/kubesphere/devops-java-sample.git +refs/heads/:refs/remotes/origin/
ERROR: Error cloning remote repo ‘origin’
hudson.plugins.git.GitException: Command “git fetch –tags –progress https://github.com/kubesphere/devops-java-sample.git +refs/heads/:refs/remotes/origin/” returned status code 128:
stdout:
stderr: fatal: unable to access ‘https://github.com/kubesphere/devops-java-sample.git/’: Failed to connect to github.com port 443: Connection timed out

at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandIn(CliGitAPIImpl.java:2042)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.launchCommandWithCredentials(CliGitAPIImpl.java:1761)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl.access$400(CliGitAPIImpl.java:72)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$1.execute(CliGitAPIImpl.java:442)
at org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:655)
at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:153)
at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$1.call(RemoteGitImpl.java:146)
at hudson.remoting.UserRequest.perform(UserRequest.java:212)
at hudson.remoting.UserRequest.perform(UserRequest.java:54)
at hudson.remoting.Request$2.run(Request.java:369)
at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:93)
at java.lang.Thread.run(Thread.java:748)
Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4-connect connection from 10.233.99.71/10.233.99.71:59414
	at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1743)
	at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:357)
	at hudson.remoting.Channel.call(Channel.java:957)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.execute(RemoteGitImpl.java:146)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler.invoke(RemoteGitImpl.java:132)
	at com.sun.proxy.$Proxy131.execute(Unknown Source)
	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1152)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1192)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep.checkout(SCMStep.java:124)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:93)
	at org.jenkinsci.plugins.workflow.steps.scm.SCMStep$StepExecutionImpl.run(SCMStep.java:80)
	at org.jenkinsci.plugins.workflow.steps.SynchronousNonBlockingStepExecution.lambda$start$0(SynchronousNonBlockingStepExecution.java:47)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	... 1 more

Error cloning remote repo ‘origin’`