From 03af87f6b94dc82ddfe77bd305c6e82e450ed4e8 Mon Sep 17 00:00:00 2001
From: Aditya NV <138525577+aditya-nv-06@users.noreply.github.com>
Date: Fri, 3 Oct 2025 13:50:50 +0000
Subject: [PATCH] Add Docker installation instructions for PostgreSQL

---
 psql/installation.md | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/psql/installation.md b/psql/installation.md
index 90e5590..3772fc3 100644
--- a/psql/installation.md
+++ b/psql/installation.md
@@ -48,4 +48,37 @@
 
 4. Optionally, you can secure your PostgreSQL installation by setting a password for the database superuser account (`postgres`).
 
+### Docker 
+
+1. The prerequsite for this is installation of the docker containerzation tool docker 
+
+2. Check the version of the docker tool
+   ```
+      docker --version 
+   ```
+
+3. Pull the offical postgreSql image
+   ```
+      docker pull postgres
+   ```
+
+4. Start a postgresSql container
+    ```
+      docker run --name my-postgres -e POSTGRES_PASSWORD=mysecretpassword -d postgres
+    ```
+     - Replace the `mysecretpassword` with your desired password
+     - This starts a container named my-postgres in the background
+
+5. Enter the postgresSql shell inside the container(only while running)
+    ```
+      docker exec -it my-postgres psql -U postgres
+    ```
+    - This opens the interative psql shell as the postgres user
+
+6.  To stop and remove the container when done
+    ```
+      docker stop my-postgres
+      docker rm my-postgres
+    ```
+
 ---
\ No newline at end of file