Issue

• SELinux が原因で、/usr/sbin/httpd が mod_jk* ファイルに書き込みアクセスすることができません。
• httpd サービスが mod_jk ファイルを作成することができません。
  以下は、SELinux が出力する完全メッセージです。

 SELinux is preventing /usr/sbin/httpd from write access on the file mod_jk.shm.20985.

 *****  Plugin catchall (100. confidence) suggests   **************************

 If you believe that httpd should be allowed write access on the mod_jk.shm.20985 file by default.
 Then you should report this as a bug.
 You can generate a local policy module to allow this access.
 Do
 allow this access for now by executing:
 # grep httpd /var/log/audit/audit.log | audit2allow -M mypol
 # semodule -i mypol.pp

 Additional Information:
 Source Context                system_u:system_r:httpd_t:s0
 Target Context                system_u:object_r:httpd_config_t:s0
 Target Objects                mod_jk.shm.20985 [ file ]
 Source                        httpd
 Source Path                   /usr/sbin/httpd
 Port                          <Unknown>
 Host                          localhost.localdomain
 Source RPM Packages           httpd-2.4.6-31.el7.x86_64
 Target RPM Packages           
 Policy RPM                    selinux-policy-3.13.1-23.el7.noarch
 Selinux Enabled               True
 Policy Type                   targeted
 Enforcing Mode                Enforcing
 Host Name                     localhost.localdomain
 Platform                      Linux localhost.localdomain
                              3.10.0-229.1.2.el7.x86_64 #1 SMP Fri Mar 6
                              17:12:08 EST 2015 x86_64 x86_64
 Alert Count                   4
 First Seen                    2015-05-21 13:21:45 PDT
 Last Seen                     2015-05-21 13:24:31 PDT
 Local ID                      5d55d97a-81d2-4cb6-8ff8-b521ebabb12b

 Raw Audit Messages
 type=AVC msg=audit(1432239871.385:17891): avc:denied  { write } for  pid=20985 comm="httpd" name="mod_jk.shm.20985" dev="dm-0" ino=137231972  scontext=system_u:system_r:httpd_t:s0 tcontext=system_u:object_r:httpd_config_t:s0 tclass=file

 type=SYSCALL msg=audit(1432239871.385:17891): arch=x86_64 syscall=open success=no exit=EACCES a0=7f80cc8c7220 a1=242 a2=1b6 a3=0 items=0 ppid=1  pid=20985 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm=httpd exe=/usr/sbin/httpd subj=system_u:system_r:httpd_t:s0 key=(null)

 Hash: httpd,httpd_t,httpd_config_t,file,write