Jenkins can view the forgotten credential password based on the credential ID and how to reset the admin password

Retrieve voucher password

• open Jenkins The script command line page of the system management page
• Enter the following code in the input box and click Run to view the passwords corresponding to all vouchers

com.cloudbees.plugins.credentials.SystemCredentialsProvider.getInstance().getCredentials().forEach{
    
  it.properties.each {
     prop, val ->
    println(prop + ' = "' + val + '"')
  }
  println("-----------------------")
}

Press down ctrl + F Key combination to find vouchers ID The password corresponding to the voucher can be searched

Reset the administrator password to 123456

admin User information is stored in by default /root/.jenkins/users/admin/config.xml In file , Pay attention to your actual path , among passwordHash The content in the middle of the label is admin The encrypted password of the user

<?xml version='1.1' encoding='UTF-8'?>
<user>
  <fullName>admin</fullName>
  <properties>
    <jenkins.security.ApiTokenProperty>
      <apiToken>{AQAAABAAAAAwzaSuZnmlQZdTqpGR+OJFsLttgq85/TvpE+HdXnDorJ5CVEyLKBZwWU23KNK1BMbhp5XOOVjn938Z+Xbop3z9Pg==}</apiToken>
    </jenkins.security.ApiTokenProperty>
    <hudson.model.MyViewsProperty>
      <views>
        <hudson.model.AllView>
          <owner class="hudson.model.MyViewsProperty" reference="../../.."/>
          <name>all</name>
          <filterExecutors>false</filterExecutors>
          <filterQueue>false</filterQueue>
          <properties class="hudson.model.View$PropertyList"/>
        </hudson.model.AllView>
      </views>
    </hudson.model.MyViewsProperty>
    <hudson.model.PaneStatusProperties>
      <collapsed/>
    </hudson.model.PaneStatusProperties>
    <hudson.search.UserSearchProperty>
      <insensitiveSearch>true</insensitiveSearch>
    </hudson.search.UserSearchProperty>
    <hudson.security.HudsonPrivateSecurityRealm_-Details>
      <passwordHash>#jbcrypt:$2a$10$MiIVR0rr/UhQBqT.bBq0QehTiQVqgNpUGyWW2nJObaVAM/2xSQdSq</passwordHash>
    </hudson.security.HudsonPrivateSecurityRealm_-Details>
    <jenkins.security.LastGrantedAuthoritiesProperty>
      <roles>
        <string>authenticated</string>
      </roles>
      <timestamp>1528791323260</timestamp>
    </jenkins.security.LastGrantedAuthoritiesProperty>
  </properties>
</user>

After copying and backing up the file, you can modify it passwordHash Change the value in the label to #jbcrypt:2a10$MiIVR0rr/UhQBqT.bBq0QehTiQVqgNpUGyWW2nJObaVAM/2xSQdSq

<hudson.security.HudsonPrivateSecurityRealm_-Details>
     <passwordHash>#jbcrypt:$2a$10$MiIVR0rr/UhQBqT.bBq0QehTiQVqgNpUGyWW2nJObaVAM/2xSQdSq</passwordHash>
</hudson.security.HudsonPrivateSecurityRealm_-Details>

restart jenkins After use admin To login , password 123456

Reference resources

1. https://blog.csdn.net/u012440725/article/details/124751053
2. https://blog.csdn.net/kai_1215/article/details/80731328