Man pages: refactor common options: --systemd

I went with the podman-run version, which better conforms to
style conventions.

Signed-off-by: Ed Santiago <santiago@redhat.com>

3 files changed, 31 insertions, 57 deletions

diff --git a/docs/source/markdown/options/systemd.md b/docs/source/markdown/options/systemd.md
new file mode 100644
index 000000000..a341edbc2
--- /dev/null
+++ b/docs/source/markdown/options/systemd.md
@@ -0,0 +1,29 @@
+#### **--systemd**=*true* | *false* | *always*
+
+Run container in systemd mode. The default is **true**.
+
+The value *always* enforces the systemd mode is enforced without
+looking at the executable name. Otherwise, if set to true and the
+command you are running inside the container is **systemd**, **/usr/sbin/init**,
+**/sbin/init** or **/usr/local/sbin/init**.
+
+Running the container in systemd mode causes the following changes:
+
+* Podman mounts tmpfs file systems on the following directories
+  * _/run_
+  * _/run/lock_
+  * _/tmp_
+  * _/sys/fs/cgroup/systemd_
+  * _/var/lib/journal_
+* Podman sets the default stop signal to **SIGRTMIN+3**.
+* Podman sets **container_uuid** environment variable in the container to the
+first 32 characters of the container id.
+
+This allows systemd to run in a confined container without any modifications.
+
+Note that on **SELinux** systems, systemd attempts to write to the cgroup
+file system. Containers writing to the cgroup file system are denied by default.
+The **container_manage_cgroup** boolean must be enabled for this to be allowed on an SELinux separated system.
+```
+setsebool -P container_manage_cgroup true
+```
diff --git a/docs/source/markdown/podman-create.1.md.in b/docs/source/markdown/podman-create.1.md.in
index 4dbc75551..1ff7429c7 100644
--- a/docs/source/markdown/podman-create.1.md.in
+++ b/docs/source/markdown/podman-create.1.md.in
@@ -632,34 +632,7 @@ Network Namespace - current sysctls allowed:
 
 Note: if you use the --network=host option these sysctls will not be allowed.
 
-#### **--systemd**=*true* | *false* | *always*
-
-Run container in systemd mode. The default is *true*.
-
-The value *always* enforces the systemd mode is enforced without
-looking at the executable name. Otherwise, if set to true and the
-command you are running inside the container is **systemd**, **/usr/sbin/init**,
-**/sbin/init** or **/usr/local/sbin/init**.
-
-Running the container in systemd mode causes the following changes:
-
-* Podman mounts tmpfs file systems on the following directories
-  * _/run_
-  * _/run/lock_
-  * _/tmp_
-  * _/sys/fs/cgroup/systemd_
-  * _/var/lib/journal_
-* Podman sets the default stop signal to **SIGRTMIN+3**.
-* Podman sets **container_uuid** environment variable in the container to the
-first 32 characters of the container id.
-
-This allows systemd to run in a confined container without any modifications.
-
-Note: On `SELinux` systems, systemd attempts to write to the cgroup
-file system. Containers writing to the cgroup file system are denied by default.
-The `container_manage_cgroup` boolean must be enabled for this to be allowed on an SELinux separated system.
-
-`setsebool -P container_manage_cgroup true`
+@@option systemd
 
 @@option timeout
 
diff --git a/docs/source/markdown/podman-run.1.md.in b/docs/source/markdown/podman-run.1.md.in
index c7985d7e1..f172ffc9e 100644
--- a/docs/source/markdown/podman-run.1.md.in
+++ b/docs/source/markdown/podman-run.1.md.in
@@ -682,35 +682,7 @@ For the network namespace, the following sysctls are allowed:
 
 Note: if you use the **--network=host** option, these sysctls will not be allowed.
 
-#### **--systemd**=*true* | *false* | *always*
-
-Run container in systemd mode. The default is **true**.
-
-The value *always* enforces the systemd mode is enforced without
-looking at the executable name. Otherwise, if set to true and the
-command you are running inside the container is **systemd**, **/usr/sbin/init**,
-**/sbin/init** or **/usr/local/sbin/init**.
-
-Running the container in systemd mode causes the following changes:
-
-* Podman mounts tmpfs file systems on the following directories
-  * _/run_
-  * _/run/lock_
-  * _/tmp_
-  * _/sys/fs/cgroup/systemd_
-  * _/var/lib/journal_
-* Podman sets the default stop signal to **SIGRTMIN+3**.
-* Podman sets **container_uuid** environment variable in the container to the
-first 32 characters of the container id.
-
-This allows systemd to run in a confined container without any modifications.
-
-Note that on **SELinux** systems, systemd attempts to write to the cgroup
-file system. Containers writing to the cgroup file system are denied by default.
-The **container_manage_cgroup** boolean must be enabled for this to be allowed on an SELinux separated system.
-```
-setsebool -P container_manage_cgroup true
-```
+@@option systemd
 
 @@option timeout