Improve /etc/hosts documentation

Update the documentation for /etc/hosts options --add-host and
--no-hosts. Also make sure that all references use the same text for
consistency.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

5 files changed, 24 insertions, 13 deletions

diff --git a/docs/source/markdown/podman-build.1.md b/docs/source/markdown/podman-build.1.md
index 1080581d7..86801c72f 100644
--- a/docs/source/markdown/podman-build.1.md
+++ b/docs/source/markdown/podman-build.1.md
@@ -439,9 +439,9 @@ with a new set of cached layers.
 #### **--no-hosts**
 
 Do not create _/etc/hosts_ for the container.
-
-By default, Buildah manages _/etc/hosts_, adding the container's own IP address.
-**--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified. Conflicts with the --add-host option.
+By default, Podman will manage _/etc/hosts_, adding the container's own IP address and any hosts from **--add-host**.
+**--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified.
+This option conflicts with **--add-host**.
 
 #### **--os**=*string*
 
diff --git a/docs/source/markdown/podman-create.1.md b/docs/source/markdown/podman-create.1.md
index f6d028f4d..9b2a4fd27 100644
--- a/docs/source/markdown/podman-create.1.md
+++ b/docs/source/markdown/podman-create.1.md
@@ -743,9 +743,9 @@ Disable any defined healthchecks for container.
 
 #### **--no-hosts**
 
-Do not create /etc/hosts for the container.
-By default, Podman will manage /etc/hosts, adding the container's own IP address and any hosts from **--add-host**.
-#### **--no-hosts** disables this, and the image's **/etc/host** will be preserved unmodified.
+Do not create _/etc/hosts_ for the container.
+By default, Podman will manage _/etc/hosts_, adding the container's own IP address and any hosts from **--add-host**.
+**--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified.
 This option conflicts with **--add-host**.
 
 #### **--oom-kill-disable**
diff --git a/docs/source/markdown/podman-play-kube.1.md b/docs/source/markdown/podman-play-kube.1.md
index 471c17f91..8b56d109a 100644
--- a/docs/source/markdown/podman-play-kube.1.md
+++ b/docs/source/markdown/podman-play-kube.1.md
@@ -216,7 +216,10 @@ Valid _mode_ values are:
 
 #### **--no-hosts**
 
-Do not create /etc/hosts within the pod's containers, instead use the version from the image
+Do not create /etc/hosts for the pod.
+By default, Podman will manage /etc/hosts, adding the container's own IP address and any hosts from **--add-host**.
+**--no-hosts** disables this, and the image's **/etc/host** will be preserved unmodified.
+This option conflicts with host added in the Kubernetes YAML.
 
 #### **--quiet**, **-q**
 
diff --git a/docs/source/markdown/podman-pod-create.1.md b/docs/source/markdown/podman-pod-create.1.md
index 1bf14efdb..ce70678de 100644
--- a/docs/source/markdown/podman-pod-create.1.md
+++ b/docs/source/markdown/podman-pod-create.1.md
@@ -17,7 +17,11 @@ containers added to it. The pod id is printed to STDOUT. You can then use
 
 #### **--add-host**=_host_:_ip_
 
-Add a host to the /etc/hosts file shared between all containers in the pod.
+Add a custom host-to-IP mapping (host:ip)
+
+Add a line to /etc/hosts. The format is hostname:ip. The **--add-host**
+option can be set multiple times.
+The /etc/hosts file is shared between all containers in the pod.
 
 #### **--cgroup-parent**=*path*
 
@@ -187,7 +191,10 @@ NOTE: A container will only have access to aliases on the first network that it
 
 #### **--no-hosts**
 
-Disable creation of /etc/hosts for the pod.
+Do not create _/etc/hosts_ for the pod.
+By default, Podman will manage _/etc/hosts_, adding the container's own IP address and any hosts from **--add-host**.
+**--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified.
+This option conflicts with **--add-host**.
 
 #### **--pid**=*pid*
 
diff --git a/docs/source/markdown/podman-run.1.md b/docs/source/markdown/podman-run.1.md
index 8f72d4f49..06fd63030 100644
--- a/docs/source/markdown/podman-run.1.md
+++ b/docs/source/markdown/podman-run.1.md
@@ -85,8 +85,10 @@ and specified with a _tag_.
 ## OPTIONS
 #### **--add-host**=_host_:_ip_
 
-Add a line to container's _/etc/hosts_ for custom host-to-IP mapping.
-This option can be set multiple times.
+Add a custom host-to-IP mapping (host:ip)
+
+Add a line to /etc/hosts. The format is hostname:ip. The **--add-host**
+option can be set multiple times.
 
 #### **--annotation**=_key_=_value_
 
@@ -768,9 +770,8 @@ Disable any defined healthchecks for container.
 #### **--no-hosts**
 
 Do not create _/etc/hosts_ for the container.
-
 By default, Podman will manage _/etc/hosts_, adding the container's own IP address and any hosts from **--add-host**.
-#### **--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified.
+**--no-hosts** disables this, and the image's _/etc/hosts_ will be preserved unmodified.
 This option conflicts with **--add-host**.
 
 #### **--oom-kill-disable**