use etchosts package from c/common

Use the new logic from c/common to create the hosts file. This will help
to better allign the hosts files between buildah and podman.

Also this fixes several bugs:
- remove host entries when container is stopped and has a netNsCtr
- add entries for containers in a pod
- do not duplicate entries in the hosts file
- use the correct slirp ip when an userns is used

Features:
- configure host.containers.internal entry in containers.conf
- configure base hosts file in containers.conf

Fixes #12003
Fixes #13224

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

1 files changed, 0 insertions, 28 deletions

diff --git a/libpod/container_internal_linux_test.go b/libpod/container_internal_linux_test.go
index a7dd0fc31..2c1193445 100644
--- a/libpod/container_internal_linux_test.go
+++ b/libpod/container_internal_linux_test.go
@@ -8,7 +8,6 @@ import (
 	"os"
 	"testing"
 
-	"github.com/containers/podman/v4/pkg/namespaces"
 	spec "github.com/opencontainers/runtime-spec/specs-go"
 	"github.com/stretchr/testify/assert"
 )
@@ -70,30 +69,3 @@ func TestGenerateUserGroupEntry(t *testing.T) {
 	}
 	assert.Equal(t, group, "567:x:567:567\n")
 }
-
-func TestAppendLocalhost(t *testing.T) {
-	{
-		c := Container{
-			config: &ContainerConfig{
-				ContainerNetworkConfig: ContainerNetworkConfig{
-					NetMode: namespaces.NetworkMode("slirp4netns"),
-				},
-			},
-		}
-
-		assert.Equal(t, "127.0.0.1\tlocalhost\n::1\tlocalhost\n", c.appendLocalhost(""))
-		assert.Equal(t, "127.0.0.1\tlocalhost", c.appendLocalhost("127.0.0.1\tlocalhost"))
-	}
-	{
-		c := Container{
-			config: &ContainerConfig{
-				ContainerNetworkConfig: ContainerNetworkConfig{
-					NetMode: namespaces.NetworkMode("host"),
-				},
-			},
-		}
-
-		assert.Equal(t, "", c.appendLocalhost(""))
-		assert.Equal(t, "127.0.0.1\tlocalhost", c.appendLocalhost("127.0.0.1\tlocalhost"))
-	}
-}