sijia-w commented on a change in pull request #7904:
URL: https://github.com/apache/pulsar/pull/7904#discussion_r479963640
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File path: site2/docs/functions-package.md
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+---
+id: functions-package
+title: Package Pulsar Functions
+sidebar_label: "How-to: Package"
+---
+
+This section provides step-by-step instructions to package Pulsar functions in
Java, Python, and Go.
+
+> **Tip**
+>
+> - Packaging a window function in Java is the same as [packaging a function
in Java](#java) as below.
+>
+> - Currently, the window function is not available in Python and Go.
+
+## Prerequisite
+
+Before running a Pulsar function, you need to start Pulsar.
+
+### Run a standalone Pulsar in Docker
+
+This example uses Docker to run a standalone Pulsar.
+
+```bash
+docker run -it \
+ -p 6650:6650 \
+ -p 8080:8080 \
+ -v $PWD/data:/pulsar/data \
+ apachepulsar/pulsar:latest \
+ bin/pulsar standalone
+```
+
+> **Tip**
+>
+> - `$PWD/data` is the local directory. `-v` maps the `/pulsar/data` directory
in the Docker image to the local `$PWD/data` directory.
+>
+> - To check whether the image starts up or not, use the command `docker ps`.
Review comment:
```suggestion
> - To check whether the image starts up, use the command `docker ps`.
```
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