openshift_selinux(8) SELinux Policy openshift openshift_selinux(8)NAMEopenshift_selinux - Security Enhanced Linux Policy for the openshift
processes
DESCRIPTION
Security-Enhanced Linux secures the openshift processes via flexible
mandatory access control.
The openshift processes execute with the openshift_t SELinux type. You
can check if you have these processes running by executing the ps com‐
mand with the -Z qualifier.
For example:
ps -eZ | grep openshift_t
ENTRYPOINTS
The openshift_t SELinux type can be entered via the gpg_exec_t,
user_cron_spool_t, bin_t, usr_t, openshift_file_type, shell_exec_t,
httpd_exec_t file types.
The default entrypoint paths for the openshift_t domain are the follow‐
ing:
All executeables with the default executable label, usually stored in
/usr/bin and /usr/sbin. /usr/bin/gpg(2)?, /usr/lib/gnupg/.*,
/usr/bin/gpgsm, /var/spool/at(/.*)?, /var/spool/cron, /opt/.*, /usr/.*,
/emul/.*, /export(/.*)?, /usr/doc(/.*)?/lib(/.*)?, /usr/inclu.e(/.*)?,
/usr/share/doc(/.*)?/README.*, /usr, /opt, /emul, /bin/d?ash,
/bin/zsh.*, /bin/ksh.*, /usr/bin/d?ash, /usr/bin/zsh.*, /usr/bin/ksh.*,
/bin/esh, /bin/mksh, /bin/sash, /bin/tcsh, /bin/yash, /bin/bash,
/bin/fish, /bin/bash2, /usr/bin/esh, /usr/bin/sash, /usr/bin/tcsh,
/usr/bin/yash, /usr/bin/fish, /usr/bin/mksh, /usr/bin/bash, /sbin/nolo‐
gin, /usr/sbin/sesh, /usr/bin/bash2, /usr/sbin/smrsh, /usr/bin/scponly,
/usr/sbin/nologin, /usr/libexec/sesh, /usr/sbin/scponlyc, /usr/bin/git-
shell, /usr/libexec/git-core/git-shell, /usr/sbin/httpd(.worker)?,
/usr/sbin/apache(2)?, /usr/lib/apache-ssl/.+, /usr/sbin/apache-ssl(2)?,
/usr/share/jetty/bin/jetty.sh, /usr/sbin/nginx, /usr/sbin/php-fpm,
/usr/sbin/cherokee, /usr/sbin/lighttpd, /usr/sbin/httpd.event,
/usr/bin/mongrel_rails
PROCESS TYPES
SELinux defines process types (domains) for each process running on the
system
You can see the context of a process using the -Z option to ps
Policy governs the access confined processes have to files. SELinux
openshift policy is very flexible allowing users to setup their open‐
shift processes in as secure a method as possible.
The following process types are defined for openshift:
openshift_app_t, openshift_cgroup_read_t, openshift_initrc_t, openshift_cron_t, openshift_t
Note: semanage permissive -a openshift_t can be used to make the
process type openshift_t permissive. SELinux does not deny access to
permissive process types, but the AVC (SELinux denials) messages are
still generated.
BOOLEANS
SELinux policy is customizable based on least access required. open‐
shift policy is extremely flexible and has several booleans that allow
you to manipulate the policy and run openshift with the tightest access
possible.
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server, you must turn on the authlo‐
gin_nsswitch_use_ldap boolean. Disabled by default.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to deny any process from ptracing or debugging any other
processes, you must turn on the deny_ptrace boolean. Enabled by
default.
setsebool -P deny_ptrace 1
If you want to allow all domains to use other domains file descriptors,
you must turn on the domain_fd_use boolean. Enabled by default.
setsebool -P domain_fd_use 1
If you want to allow all domains to have the kernel load modules, you
must turn on the domain_kernel_load_modules boolean. Disabled by
default.
setsebool -P domain_kernel_load_modules 1
If you want to allow all domains to execute in fips_mode, you must turn
on the fips_mode boolean. Enabled by default.
setsebool -P fips_mode 1
If you want to enable reading of urandom for all domains, you must turn
on the global_ssp boolean. Disabled by default.
setsebool -P global_ssp 1
If you want to allow confined applications to run with kerberos, you
must turn on the kerberos_enabled boolean. Enabled by default.
setsebool -P kerberos_enabled 1
If you want to allow system to run with NIS, you must turn on the
nis_enabled boolean. Disabled by default.
setsebool -P nis_enabled 1
If you want to allow confined applications to use nscd shared memory,
you must turn on the nscd_use_shm boolean. Disabled by default.
setsebool -P nscd_use_shm 1
NSSWITCH DOMAIN
If you want to allow users to resolve user passwd entries directly from
ldap rather then using a sssd server for the openshift_cron_t, open‐
shift_t, openshift_app_t, you must turn on the authlogin_nss‐
witch_use_ldap boolean.
setsebool -P authlogin_nsswitch_use_ldap 1
If you want to allow confined applications to run with kerberos for the
openshift_cron_t, openshift_t, openshift_app_t, you must turn on the
kerberos_enabled boolean.
setsebool -P kerberos_enabled 1
PORT TYPES
SELinux defines port types to represent TCP and UDP ports.
You can see the types associated with a port by using the following
command:
semanage port -l
Policy governs the access confined processes have to these ports.
SELinux openshift policy is very flexible allowing users to setup their
openshift processes in as secure a method as possible.
The following port types are defined for openshift:
openshift_port_t
MANAGED FILES
The SELinux process type openshift_t can manage files labeled
with the following file types. The paths listed are the default
paths for these file types. Note the processes UID still need
to have DAC permissions.
anon_inodefs_t
hugetlbfs_t
/dev/hugepages
/lib/udev/devices/hugepages
/usr/lib/udev/devices/hugepages
openshift_file_type
openshift_tmpfs_t
postfix_spool_maildrop_t
/var/spool/postfix/defer(/.*)?
/var/spool/postfix/deferred(/.*)?
/var/spool/postfix/maildrop(/.*)?
security_t
/selinux
FILE CONTEXTS
SELinux requires files to have an extended attribute to define the file
type.
You can see the context of a file using the -Z option to ls
Policy governs the access confined processes have to these files.
SELinux openshift policy is very flexible allowing users to setup their
openshift processes in as secure a method as possible.
EQUIVALENCE DIRECTORIES
openshift policy stores data with multiple different file context types
under the /var/lib/openshift directory. If you would like to store the
data in a different directory you can use the semanage command to cre‐
ate an equivalence mapping. If you wanted to store this data under the
/srv dirctory you would execute the following command:
semanage fcontext -a -e /var/lib/openshift /srv/openshift
restorecon -R -v /srv/openshift
openshift policy stores data with multiple different file context types
under the /var/lib/stickshift directory. If you would like to store
the data in a different directory you can use the semanage command to
create an equivalence mapping. If you wanted to store this data under
the /srv dirctory you would execute the following command:
semanage fcontext -a -e /var/lib/stickshift /srv/stickshift
restorecon -R -v /srv/stickshift
STANDARD FILE CONTEXT
SELinux defines the file context types for the openshift, if you wanted
to store files with these types in a diffent paths, you need to execute
the semanage command to sepecify alternate labeling and then use
restorecon to put the labels on disk.
semanage fcontext -a-t openshift_cgroup_read_exec_t '/srv/open‐
shift/content(/.*)?'
restorecon -R -v /srv/myopenshift_content
Note: SELinux often uses regular expressions to specify labels that
match multiple files.
The following file types are defined for openshift:
openshift_cgroup_read_exec_t
- Set files with the openshift_cgroup_read_exec_t type, if you want to
transition an executable to the openshift_cgroup_read_t domain.
openshift_cgroup_read_tmp_t
- Set files with the openshift_cgroup_read_tmp_t type, if you want to
store openshift cgroup read temporary files in the /tmp directories.
openshift_cron_exec_t
- Set files with the openshift_cron_exec_t type, if you want to transi‐
tion an executable to the openshift_cron_t domain.
openshift_cron_tmp_t
- Set files with the openshift_cron_tmp_t type, if you want to store
openshift cron temporary files in the /tmp directories.
openshift_initrc_exec_t
- Set files with the openshift_initrc_exec_t type, if you want to tran‐
sition an executable to the openshift_initrc_t domain.
Paths:
/usr/s?bin/mcollectived, /usr/s?bin/(oo|rhc)-restorer,
/usr/s?bin/oo-admin-ctl-gears, /etc/rc.d/init.d/libra,
/etc/rc.d/init.d/mcollective
openshift_initrc_tmp_t
- Set files with the openshift_initrc_tmp_t type, if you want to store
openshift initrc temporary files in the /tmp directories.
openshift_log_t
- Set files with the openshift_log_t type, if you want to treat the
data as openshift log data, usually stored under the /var/log direc‐
tory.
openshift_rw_file_t
- Set files with the openshift_rw_file_t type, if you want to treat the
files as openshift rw content.
Paths:
/var/lib/openshift/.*/data(/.*)?, /var/lib/stick‐
shift/.*/data(/.*)?
openshift_tmp_t
- Set files with the openshift_tmp_t type, if you want to store open‐
shift temporary files in the /tmp directories.
Paths:
/var/lib/openshift/.*/.tmp(/.*)?, /var/lib/openshift/.*/.sand‐
box(/.*)?, /var/lib/stickshift/.*/.tmp(/.*)?, /var/lib/stick‐
shift/.*/.sandbox(/.*)?
openshift_tmpfs_t
- Set files with the openshift_tmpfs_t type, if you want to store open‐
shift files on a tmpfs file system.
openshift_var_lib_t
- Set files with the openshift_var_lib_t type, if you want to store the
openshift files under the /var/lib directory.
Paths:
/var/lib/openshift(/.*)?, /var/lib/stickshift(/.*)?
openshift_var_run_t
- Set files with the openshift_var_run_t type, if you want to store the
openshift files under the /run or /var/run directory.
Paths:
/var/run/openshift(/.*)?, /var/run/stickshift(/.*)?
Note: File context can be temporarily modified with the chcon command.
If you want to permanently change the file context you need to use the
semanage fcontext command. This will modify the SELinux labeling data‐
base. You will need to use restorecon to apply the labels.
COMMANDS
semanage fcontext can also be used to manipulate default file context
mappings.
semanage permissive can also be used to manipulate whether or not a
process type is permissive.
semanage module can also be used to enable/disable/install/remove pol‐
icy modules.
semanage port can also be used to manipulate the port definitions
semanage boolean can also be used to manipulate the booleans
system-config-selinux is a GUI tool available to customize SELinux pol‐
icy settings.
AUTHOR
This manual page was auto-generated using sepolicy manpage .
SEE ALSOselinux(8), openshift(8), semanage(8), restorecon(8), chcon(1), sepol‐
icy(8) , setsebool(8), openshift_app_selinux(8), open‐
shift_app_selinux(8), openshift_cgroup_read_selinux(8), open‐
shift_cgroup_read_selinux(8), openshift_cron_selinux(8), open‐
shift_cron_selinux(8), openshift_initrc_selinux(8), openshift_ini‐
trc_selinux(8)openshift 13-11-20 openshift_selinux(8)
