jenkins+gitlab配置遇到问题

搭建jenkins+gitlab拉取代码失败，日志如下：

ERROR: Error fetching remote repo 'origin'
hudson.plugins.git.GitException: Failed to fetch from [email protected]:magw/crm_api_auto.git
	at hudson.plugins.git.GitSCM.fetchFrom(GitSCM.java:862)
	at hudson.plugins.git.GitSCM.retrieveChanges(GitSCM.java:1129)
	at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1160)
	at hudson.scm.SCM.checkout(SCM.java:495)
	at hudson.model.AbstractProject.checkout(AbstractProject.java:1202)
	at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:574)
	at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
	at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:499)
	at hudson.model.Run.execute(Run.java:1724)
	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
	at hudson.model.ResourceController.execute(ResourceController.java:97)
	at hudson.model.Executor.run(Executor.java:421)
Caused by: hudson.plugins.git.GitException: Command "git fetch --tags --progress [email protected]:magw/crm_api_auto.git +refs/heads/*:refs/remotes/origin/*" returned status code 128:
stdout: 
stderr: Host key verification failed.
fatal: Could not read from remote repository.

1. 把配置好的公钥、私钥拷贝到jenkins服务器的~/.ssh目录下
2. 把公钥拷贝到.ssh known_hosts或者authorized_keys(不一定有效，但是解决问题中操作了这一步骤)
3. 配置jenkins credential,username为jenkins的启动账号，私钥目录选择~/.ssh/id_rsa