Update readme

README.md

@@ -6,13 +6,25 @@ Asynqmon is a web based tool for monitoring and administrating Asynq queues and
 
 Current version of Asynqmon is compatible with [Asynq v0.15 or above](https://github.com/hibiken/asynq/releases).
 
-## Installation
+## Install
 
 ### Release binaries
 
 You can download the release binary for your system from the
 [releases page](https://github.com/hibiken/asynqmon/releases).
 
+### Docker image
+
+To pull the docker image:
+
+```bash
+# Pull the latest image
+docker pull hibiken/asynqmon
+
+# Or specify the image by tag
+docker pull hibiken/asynqmon[:tag]
+```
+
 ### Building from source
 
 To build Asynqmon from source code, first ensure that have a working
@@ -28,60 +40,44 @@ make build
 
 The `asynqmon` binary should be created in the current directory.
 
-## Usage
+### Building docker image
 
-Asynqmon server needs to connect to redis server to serve data.
+To build docker image locally, run:
-By default, it connects to redis server running on port 6379 locally, and the server listens on port 8080.
-
-To use the defaults, simply run and open http://localhost:8080.
-
-```bash
-./asynqmon
-```
-
-Pass flags to specify port, redis server address, etc.
-
-```bash
-./asynqmon --port=3000 --redis_addr=localhost:6380
-```
-
-To see all available flags, run
-
-```bash
-./asynqmon --help
-```
-
-## Running from Docker
-
-To run Asynqmon in a Docker container, you only need to install [Docker](https://www.docker.com/get-started) on your system. No need to install [Node.js](https://nodejs.org/) and [Yarn](https://yarnpkg.com/), they will be installed automatically in the container.
-
-After that, just run this command:
 
 ```bash
 make docker
 ```
 
-Next, go to [localhost:8080](http://localhost:8080) and see Asynqmon dashboard:
+## Run
 
-![Screenshot](https://user-images.githubusercontent.com/11155743/113557216-57af2b80-9606-11eb-8ab6-df023b14e5c1.png)
+To use the defaults, simply run and open http://localhost:8080.
-
-### Change default Asynqmon settings
-
-By default, Asynqmon web server listens on `http://localhost:8080` and connects to a Redis server on port `localhost:6379`.  
-You can easily change this settings by running Docker container with custom options, like this:
 
 ```bash
+# with a local binary
+./asynqmon
+
+# with docker
+docker run --rm \
+    --name asynqmon \
+    -p 8080:8080 \
+    hibiken/asynqmon
+```
+
+By default, Asynqmon web server listens on port `8080` and connects to a Redis server listening on `127.0.0.1:6379`.
+
+Pass flags to specify port, redis server address, etc.
+
+```bash
+# with a local binary
+./asynqmon --port=3000 --redis_addr=localhost:6380
+
+# with docker (connect to redis-server running on the host machine)
 docker run --rm \
     --name asynqmon \
     -p 3000:3000 \
-    asynqmon --port=3000 --redis_addr=host.docker.internal:6380
+    hibiken/asynqmon --port=3000 --redis_addr=host.docker.internal:6380
-```
 
-### Connect to a Redis server from Docker
+# with docker (connect to redis-server running in a docker container)
-
-If you run Redis server from Docker container too (i.e. is **not** locally installed to your machine), you need to set [Docker network](https://docs.docker.com/network/) to make them work together. For example, if Redis container have a name `dev-redis`, and our Docker network called `dev-network`, you should run Asynqmon container by this command:
-
-```bash
 docker run --rm \
     --name asynqmon \
     --network dev-network \
@@ -89,6 +85,20 @@ docker run --rm \
     asynqmon --redis_addr=dev-redis:6379
 ```
 
+To see all available flags, run
+
+```bash
+# with a local binary
+./asynqmon --help
+
+# with docker
+docker run hibiken/asynqmon --help
+```
+
+Next, go to [localhost:8080](http://localhost:8080) and see Asynqmon dashboard:
+
+![Screenshot](https://user-images.githubusercontent.com/11155743/113557216-57af2b80-9606-11eb-8ab6-df023b14e5c1.png)
+
 ## License
 
 Asynqmon is released under the MIT license. See [LICENSE](https://github.com/hibiken/asynqmon/blob/master/LICENSE).