From ddf8701b989acb9adb510bab47e301985a000962 Mon Sep 17 00:00:00 2001
From: Emerson Rocha Luiz <emerson@alligo.com.br>
Date: Sun, 19 Apr 2020 11:45:59 -0300
Subject: [PATCH] ckan (#8, #9): documented how to uninstall (needs this to
 change the base images, as cited on #9)

---
 docker/README.md | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/docker/README.md b/docker/README.md
index 10dda4a..cdb6e0d 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -1,3 +1,15 @@
 # docker
 
 > @TODO: implement this part (fititnt, 2020-04-05 08:28 BRT)
+
+## Uninstall
+
+- See <https://docs.docker.com/engine/reference/commandline/system_prune/>
+
+```bash
+# remove all not actively used, except data volumes
+docker system prune
+
+# remove all not actively used, EVEN data volumes (be very sure of what you are doing)
+docker system prune -a --volumes
+```