diff --git a/src/SUMMARY.md b/src/SUMMARY.md
index c03ba73..a92152d 100644
--- a/src/SUMMARY.md
+++ b/src/SUMMARY.md
@@ -16,5 +16,6 @@
     - [Shell Tips](./ops/shelltips.md)
     - [Tools](./ops/tools/main.md)
         - [Ansible](./ops/tools/ansible.md)
+        - [Docker](./ops/tools/docker.md)
         - [MongoDB](./ops/tools/mongodb.md)
         - [OpenSSL](./ops/tools/openssl.md)
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diff --git a/src/ops/tools/docker.md b/src/ops/tools/docker.md
new file mode 100644
index 0000000..06081f2
--- /dev/null
+++ b/src/ops/tools/docker.md
@@ -0,0 +1,9 @@
+# Docker
+
+## Inspect
+
+### Get container ip
+
+```shell
+docker container inspect --format='{{range .NetworkSettings.Networks }}{{ .IPAddress }}{{ end }}' upbeat_babbage
+```
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