Manage Jenkins

Your Jenkins data directory /var/jenkins_home (AKA JENKINS_HOME) is almost full. You should act on it before it gets completely full.

It appears that your reverse proxy set up is broken.

Your configured root URL does not contain the contextPath ("/jenkins").

Building on the built-in node can be a security issue. You should set up distributed builds. See the documentation.

Restore the previous version of Jenkins

System Configuration

System: Configure global settings and paths.

Tools: Configure tools, their locations and automatic installers.

Plugins: Add, remove, disable or enable plugins that can extend the functionality of Jenkins.

Nodes: Add, remove, control and monitor the various nodes that Jenkins runs jobs on.

Clouds: Add, remove, and configure cloud instances to provision agents on-demand.

Appearance: Configure the look and feel of Jenkins

Security

Security: Secure Jenkins; define who is allowed to access/use the system.

Credentials: Configure credentials

Credential Providers: Configure the credential providers and types

Status Information

System Information: Displays various environmental information to assist trouble-shooting.

System Log: System log captures output from java.util.logging output related to Jenkins.

Load Statistics: Check your resource utilization and see if you need more computers for your builds.

About Jenkins: See the version and license information.

Troubleshooting

Manage Old Data: Scrub configuration files to remove remnants from old plugins and earlier versions.

Tools and Actions

Reload Configuration from Disk: Discard all the loaded data in memory and reload everything from file system. Useful when you modified config files directly on disk.

Jenkins CLI: Access/manage Jenkins from your shell, or from your script.

Script Console: Executes arbitrary script for administration/trouble-shooting/diagnostics.

Prepare for Shutdown: Stops executing new builds, so that the system can be eventually shut down safely.