SonarQube scanner can't connect to server

Question

I faced the issue with the sonar-scanner-cli which can't connect to the SonarQube server. Scan is run from within the docker container. Docker connects to SonarQube server through proxy so I thought that it was the issue but I tried to set proxy environment variables and also pass proxy parameters to the scanner. That didn't help. Also other binaries like yum or gradle can connect to external repos without problem from the same container.

SonarQube server version: 6.7.0.33306.

13:12:28.858 INFO: Scanner configuration file: /home/jenkins/tools/hudson.plugins.sonar.SonarRunnerInstallation/SonarQube_2.8/sonar-scanner-2.8/conf/sonar-scanner.properties 
13:12:28.869 INFO: Project root configuration file: NONE 
13:12:28.937 INFO: SonarQube Scanner 2.8 
13:12:28.937 INFO: Java 1.8.0_151 Oracle Corporation (64-bit) 
13:12:28.937 INFO: Linux
3.10.0-693.2.2.el7.x86_64 amd64 
13:12:29.854 DEBUG: keyStore is :  
13:12:29.854 DEBUG: keyStore type is : jks 
13:12:29.854 DEBUG: keyStore provider is :  
13:12:29.854 DEBUG: init keystore 
13:12:29.854 DEBUG: init keymanager of type SunX509 
13:12:30.067 DEBUG: Create : /home/jenkins/.sonar/cache 
13:12:30.074 INFO: User cache: /home/jenkins/.sonar/cache 
13:12:30.074 DEBUG: Create : /home/jenkins/.sonar/cache/_tmp 
13:12:30.075 DEBUG: Extract sonar-scanner-api-batch in temp... 
13:12:30.088 DEBUG: Get bootstrap index... 
13:12:30.089 DEBUG: Download: https://hostname/batch_bootstrap/index 
13:12:30.133 ERROR: SonarQube server [https://hostname] can not be reached 
13:12:30.133 INFO:
------------------------------------------------------------------------ 
13:12:30.133 INFO: EXECUTION FAILURE 
13:12:30.134 INFO:
------------------------------------------------------------------------ 
13:12:30.134 INFO: Total time: 1.342s 
13:12:30.153 INFO: Final Memory: 4M/148M 
13:12:30.154 INFO:
------------------------------------------------------------------------ 
13:12:30.154 ERROR: Error during SonarQube Scanner execution org.sonarsource.scanner.api.internal.ScannerException: Unable to execute SonarQube
    at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory$1.run(IsolatedLauncherFactory.java:84)
    at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory$1.run(IsolatedLauncherFactory.java:71)
    at java.security.AccessController.doPrivileged(Native Method)
    at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.createLauncher(IsolatedLauncherFactory.java:71)
    at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory.createLauncher(IsolatedLauncherFactory.java:67)
    at org.sonarsource.scanner.api.EmbeddedScanner.doStart(EmbeddedScanner.java:218)
    at org.sonarsource.scanner.api.EmbeddedScanner.start(EmbeddedScanner.java:156)
    at org.sonarsource.scanner.cli.Main.execute(Main.java:72)
    at org.sonarsource.scanner.cli.Main.main(Main.java:61) Caused by: java.lang.IllegalStateException: Fail to download libraries from server
    at org.sonarsource.scanner.api.internal.Jars.downloadFiles(Jars.java:93)
    at org.sonarsource.scanner.api.internal.Jars.download(Jars.java:70)
    at org.sonarsource.scanner.api.internal.JarDownloader.download(JarDownloader.java:39)
    at org.sonarsource.scanner.api.internal.IsolatedLauncherFactory$1.run(IsolatedLauncherFactory.java:75)  ... 8 more Caused by: java.net.ConnectException: Failed to connect to hostname/IP:443
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.io.RealConnection.connectSocket(RealConnection.java:187)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.io.RealConnection.buildConnection(RealConnection.java:170)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.io.RealConnection.connect(RealConnection.java:111)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.StreamAllocation.findConnection(StreamAllocation.java:187)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.StreamAllocation.findHealthyConnection(StreamAllocation.java:123)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.StreamAllocation.newStream(StreamAllocation.java:93)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:296)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:248)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall.getResponse(RealCall.java:243)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall$ApplicationInterceptorChain.proceed(RealCall.java:201)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall.getResponseWithInterceptorChain(RealCall.java:163)
    at org.sonarsource.scanner.api.internal.shaded.okhttp.RealCall.execute(RealCall.java:57)
    at org.sonarsource.scanner.api.internal.ServerConnection.callUrl(ServerConnection.java:113)
    at org.sonarsource.scanner.api.internal.ServerConnection.downloadString(ServerConnection.java:98)
    at org.sonarsource.scanner.api.internal.Jars.downloadFiles(Jars.java:78)
        ... 11 more

Answer 1

I think you should verify your firewall. In most systems, port 9000 is not open and it is a common source of failure.