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+++ b/README.md
@@ -4,7 +4,108 @@ Visualizations of coverage and performance analysis for Community Cellular Netwo
 
 Now hosted on https://coverage.seattlecommunitynetwork.org/
 
-# Testing & Deployment
+
+## Initial Setup
+To install this service, the fist time, you will need to:
+
+1. Required tools and versions:
+    1. Install `node` and `npm` according to the directions at https://nodejs.org/en/download/package-manager 
+    2. Install `pm2` using: `npm install pm2 -g` (as per https://www.npmjs.com/package/pm2#installing-pm2)
+2. Clone the service: `https://github.com/Local-Connectivity-Lab/ccn-coverage-vis` 
+2. Configure:
+    1. `cd cd ccn-coverage-vis`     
+    1. Edit `src/utils/config.ts` and set the correct URL for your API host (if you're testing or you're deploying to a new URL).
+4. Deploy as below.
+5. When starting the ccn-coverage-vis service the first time, use:
+    ```
+    pm2 start --name "Vis Server" npm -- run start
+    ```
+    This will register ccn-coverage-vis with [PM2](https://pm2.keymetrics.io/docs/usage/quick-start/).
+
+
+## Deploying
+Once the service has been setup (as above), it can be deployed using the following process:
+1. Login to the coverage-host
+2. Pull the lastest version from github
+3. Restart the service
+
+The shell commands are:
+```
+ssh coverage-host
+cd ccn-coverage-vis
+git pull
+npm install
+npm run build
+pm2 restart Vis Server 
+```
+
+## Troubleshooting & Recovery
+When a problem occurs, there are several checks to determine where the failure is:
+1. Check HTTP errors in the browser
+1. Login to the coverage-host
+2. Confirm ccn-coverage-vis is operating as expected
+3. Confirm nginx is operating as expected
+
+### Checking HTTP errors in the browser
+First, open your browser and go to: https://coverage.seattlecommunitynetwork.org/
+
+Is it working?
+
+If not, open up the browser **Web Developer Tools**, usually under the menu Tools > Developer Tools > Web Developer Tools.
+
+With this panel open at the bottom of the screen select the **Network** tab and refresh the browser page.
+
+Look in the first column, Status:
+* `200`: OK, everything is good.
+* `502`: Error with the backend services (behind nginx)
+* `500` errors: problem with nxginx. Look in `/var/log/nginx/error.log` for details.
+* `400` errors: problem with the service. Check the service logs and nginx logs.
+* Timeout or unreachable error: Something is broken in the network between your web browser and the coverage-vis host.
+
+
+### Checking ccn-coverage-vis with pm2
+Next, confirm ccn-coverage-vis is operating as expected. To do this, you will need to be able to log into the server hosting the coverage service.
+
+Use `pm2 list` to confirm the "Vis Server" is **online**
+```
+ssh coverage-host
+pm2 list
+```
+![Online services under PM2](pm2-running-services.png "Online services under PM2")
+
+If the "Vis Server" is not online as expected, restart it with:
+```
+pm2 restart Vis Server
+```
+
+
+### Checking nginx
+If there appear problems with nginx, then check that the 
+
+Check service operation:
+```
+systemctl status nginx
+```
+
+Check nginx logs:
+```
+sudo tail /var/log/nginx/error.log
+```
+
+Sources of errors might include nginx configuration in `/etc/nginx/conf.d/01-ccn-coverage.conf`
+
+If you need to restart nginx, use: 
+```
+sudo systemctl restart nginx
+```
+
+### Clean Recovery
+If nothing else works, the last option is a clean reinstall of the service. The process is:
+* Remove the `ccn-coverage-vis` directory.
+* Re-install as per **Initial Setup**.
+
+
+## Testing
 
 Changes to the main branch are automically built and deployed to: https://seattlecommunitynetwork.org/ccn-coverage-vis/
 
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