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Re: Persistent Volumes permissions (trying to install jenkins persistent)



It's likely an selinux denial.  Can you temporarily disable selinux, or check your selinux denial log?

Paul (on cc) should be able to offer the chcon command needed to make the dir accessible from the container.


On Fri, Feb 12, 2016 at 3:51 AM, Candide Kemmler <candide intrinsic world> wrote:
Hi,

I'm currently trying to create a persistent instance of jenkins and I can't make sense of the documentation about permissions on Persistent Volumes. 

I first attached a new Disk on my VPS, called /dev/vde

then here's what I did

mkfs -t ext3 /dev/vde

Then mount it:

mount -t ext3 /dev/vde /var/lib/jenkins

chmod -R 777 /var/lib/jenkins

Create the persistent volume:

oc create -f ...

kind: PersistentVolume
apiVersion: v1
metadata:
  name: jenkinsdata
  labels:
    type: local
spec:
  capacity:
    storage: 20Gi
  accessModes:
    - ReadWriteOnce
  hostPath:
    path: "/var/lib/jenkins"

I can see that the the volume has rightly been claimed by the jenkins pod:

oc get pvc
NAME      LABELS                                 STATUS    VOLUME        CAPACITY   ACCESSMODES   AGE
jenkins   template=jenkins-persistent-template   Bound     jenkinsdata   20Gi       RWO           39m

but I'm seeing Permission errors in the deployment logs:


Copying Jenkins configuration to /var/lib/jenkins ... 
cp: cannot create regular file '/var/lib/jenkins/config.xml.tpl': Permission denied 
cp: cannot create directory '/var/lib/jenkins/jobs': Permission denied 
cp: cannot create directory '/var/lib/jenkins/users': Permission denied 
mkdir: cannot create directory '/var/lib/jenkins/plugins': Permission denied 
Copying 1 Jenkins plugins to /var/lib/jenkins ... 
cp: cannot create regular file '/var/lib/jenkins/plugins/': Not a directory 
Creating initial Jenkins 'admin' user ... 
sed: can't read /var/lib/jenkins/users/admin/config.xml: No such file or directory 
/usr/libexec/s2i/run: line 36: /var/lib/jenkins/password: Permission denied 
touch: cannot touch '/var/lib/jenkins/configured': Permission denied 
Running from: /usr/lib/jenkins/jenkins.war 
webroot: EnvVars.masterEnvVars.get("JENKINS_HOME") 
Feb 12, 2016 8:50:29 AM winstone.Logger logInternal 
INFO: Beginning extraction from war file 
Feb 12, 2016 8:50:29 AM winstone.Logger logInternal 
INFO: Winstone shutdown successfully 
Feb 12, 2016 8:50:29 AM winstone.Logger logInternal 
SEVERE: Container startup failed 
java.io.FileNotFoundException: /var/lib/jenkins/war/META-INF/MANIFEST.MF (No such file or directory)
at java.io.FileOutputStream.open0(Native Method) 
at java.io.FileOutputStream.open(FileOutputStream.java:270) 
at java.io.FileOutputStream.<init>(FileOutputStream.java:213) 
at java.io.FileOutputStream.<init>(FileOutputStream.java:162) 
at winstone.HostConfiguration.getWebRoot(HostConfiguration.java:280) 
at winstone.HostConfiguration.<init>(HostConfiguration.java:83) 
at winstone.HostGroup.initHost(HostGroup.java:66) 
at winstone.HostGroup.<init>(HostGroup.java:45) 
at winstone.Launcher.<init>(Launcher.java:143) 
at winstone.Launcher.main(Launcher.java:354) 
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:497) 
at Main._main(Main.java:293) 
at Main.main(Main.java:98)


I thought that setting the permissions to 777 would guarantee that anyone can do anything with the files under /var/lib/jenkins but that is apparently not the case. Of course, ideally I would know what user and group is going to want to use this directory but I have trouble finding out about this, especially since the user is running from within the jenkins container (to be honest this *really* gets me confused).

Any clues, pointers,...?

Candide

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Ben Parees | OpenShift


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