我试图在GustFS集群上使用OpenShift和PersistentStorage。
我正在启动一个默认的模板：mysql-persistent
我已经安装了一个GlusterFS集群并创build一个卷gv_mysql_01
我在openshift中添加了glusterfs端点：
oc get endpoints NAME ENDPOINTS AGE glusterfs-cluster 10.100.134.26:24007,10.100.134.28:24007 1h 我已经在openshift上创build了PersistentVolume：
cat gluster-mysql_01-storage.yaml apiVersion: "v1" kind: "PersistentVolume" metadata: name: "mysql" spec: capacity: storage: "512Mi" accessModes: - "ReadWriteOnce" glusterfs: endpoints: "glusterfs-cluster" path: "gv_mysql_01" readOnly: false persistentVolumeReclaimPolicy: "Recycle" oc create -f gluster-mysql_01-storage.yaml
PersistentStorage绑定到容器：
oc get pv NAME LABELS CAPACITY ACCESSMODES STATUS CLAIM REASON AGE mysql <none> 512Mi RWO Bound test/mysql 53m oc get pvc NAME LABELS STATUS VOLUME CAPACITY ACCESSMODES AGE mysql template=mysql-persistent-template Bound mysql 512Mi RWO 1h
在群集主机上挂载卷：
10.100.134.26:gv_mysql_01 on /var/lib/origin/openshift.local.volumes/pods/c111c480-8ec7-11e5-8405-0a57f8bdd6b3/volumes/kubernetes.io~glusterfs/mysql type fuse.glusterfs (rw,relatime,user_id=0,group_id=0,default_permissions,allow_other,max_read=131072)
但在容器日志中：
docker logs b8cd5bb3b0be Running mysql_install_db ... mkdir: cannot create directory '/var/lib/mysql/data': Permission denied chmod: cannot access '/var/lib/mysql/data/mysql': Permission denied mkdir: cannot create directory '/var/lib/mysql/data': Permission denied chmod: cannot access '/var/lib/mysql/data/test': Permission denied 151119 14:30:20 [Warning] Can't create test file /var/lib/mysql/data/mysql-1-q2yxh.lower-test 151119 14:30:20 [Warning] Can't create test file /var/lib/mysql/data/mysql-1-q2yxh.lower-test /opt/rh/mysql55/root/usr/libexec/mysqld: Can't change dir to '/var/lib/mysql/data/' (Errcode: 13) 151119 14:30:20 [ERROR] Aborting
我试图用uid更改/var/lib/origin/openshift.local.volumes/pods/c111c480-8ec7-11e5-8405-0a57f8bdd6b3/volumes/kubernetes.io~glusterfs/mysql的所有者，组，权限：容器中的mysql用户的gid，但它仍然不起作用。
我错过了什么吗？
试试这些SELinux设置
setsebool -P virt_use_fusefs 1 setsebool -P virt_sandbox_use_fusefs 1
我遇到了同样的错误，通过更改默认的scc限制策略策略，我能够正常工作。 由于您正在运行作为特定用户（27）运行的openshift mysql映像，因此您需要更改受限制的scc以允许该id运行
[root@ose1 ceph]# oc edit scc restricted
然后编辑文件（使用vi）并将fsGroup值从RunAsAny为MustRunAs
fsGroup: type: MustRunAs
你可以看到这个：
[root@ose1 ceph]# oc get scc restricted NAME PRIV CAPS HOSTDIR SELINUX RUNASUSER FSGROUP SUPGROUP PRIORITY restricted false [] false MustRunAs MustRunAsRange MustRunAs RunAsAny <none>
您还需要更改正在使用的名称空间中的默认UID范围：
[root@ose1 ceph]# oc edit ns default (sub your namespace for 'default') openshift.io/sa.scc.uid-range: 25/10000
作为一个例子，我以25开头，但是这将允许openshift mysql镜像运行它的用户27