From 488dd28339f2efa73c7ec67e2cdd0374016012c3 Mon Sep 17 00:00:00 2001
From: Felix Fontein <felix@fontein.de>
Date: Tue, 7 Oct 2025 19:16:04 +0200
Subject: [PATCH] Fix docker_container_exec's detach=true. (#1145) (#1148)

(cherry picked from commit 449b37e1c9999a9a89232a8eed512592b80e5bf6)
---
 changelogs/fragments/1145-fix.yml             |  2 ++
 plugins/module_utils/_api/api/client.py       |  1 +
 .../docker_container_exec/tasks/main.yml      | 20 ++++++++++++++++++-
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 changelogs/fragments/1145-fix.yml

diff --git a/changelogs/fragments/1145-fix.yml b/changelogs/fragments/1145-fix.yml
new file mode 100644
index 00000000..458dfcca
--- /dev/null
+++ b/changelogs/fragments/1145-fix.yml
@@ -0,0 +1,2 @@
+bugfixes:
+  - "docker_container_exec - make ``detach=true`` work. So far this resulted in no execution being done (https://github.com/ansible-collections/community.docker/pull/1145)."
diff --git a/plugins/module_utils/_api/api/client.py b/plugins/module_utils/_api/api/client.py
index ea5baa2c..e3c75cd5 100644
--- a/plugins/module_utils/_api/api/client.py
+++ b/plugins/module_utils/_api/api/client.py
@@ -580,6 +580,7 @@ class APIClient(
 
     def post_json_to_text(self, pathfmt, *args, **kwargs):
         data = kwargs.pop('data', None)
+        return self._result(self._post_json(self._url(pathfmt, *args, versioned_api=True), data, **kwargs))
 
     def post_json_to_stream_socket(self, pathfmt, *args, **kwargs):
         data = kwargs.pop('data', None)
diff --git a/tests/integration/targets/docker_container_exec/tasks/main.yml b/tests/integration/targets/docker_container_exec/tasks/main.yml
index f8f1ef4b..0b1d441d 100644
--- a/tests/integration/targets/docker_container_exec/tasks/main.yml
+++ b/tests/integration/targets/docker_container_exec/tasks/main.yml
@@ -180,7 +180,7 @@
         argv:
           - /bin/sh
           - '-c'
-          - sleep 1m
+          - echo "Detach worked." > /result.txt
         detach: true
       register: result
 
@@ -215,6 +215,24 @@
           - result.stderr == 'bar baz'
           - result.stderr_lines == ['bar baz']
 
+    - name: Check result of detach test
+      docker_container_exec:
+        container: "{{ cname }}"
+        argv:
+          - /bin/sh
+          - '-c'
+          - cat /result.txt
+        strip_empty_ends: false
+      register: result
+
+    - assert:
+        that:
+          - result.rc == 0
+          - result.stdout == 'Detach worked.\n'
+          - result.stdout_lines == ['Detach worked.']
+          - result.stderr == ''
+          - result.stderr_lines == []
+
   always:
     - name: Cleanup
       docker_container: