From 8a192ea2b2da85868c82728142d70410cd485feb Mon Sep 17 00:00:00 2001
From: Samuel ORTION <samuel.ortion@orange.fr>
Date: Sun, 21 Aug 2022 11:50:33 +0200
Subject: [PATCH] logs: Add ttyd on /ttyd endpoint

---
 INSTALL.md                                    | 27 ++++++++++++++++++-
 daemon/systemd/templates/birdnet_ttyd.service | 14 ++++++++++
 www/nginx.conf.template                       | 10 +++++++
 3 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 daemon/systemd/templates/birdnet_ttyd.service

diff --git a/INSTALL.md b/INSTALL.md
index cd75f97..dfee2ff 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -33,7 +33,7 @@ BRANCH=dev ./install.sh
 
 ```bash
 sudo apt-get update
-sudo apt-get install python3-dev python3-pip
+sudo apt-get install python3-dev python3-pip python3-venv
 sudo pip3 install --upgrade pip
 ```
 
@@ -272,3 +272,28 @@ sudo crontab -e
 ```
 
 (This updates the certicates every first day of the month, feel free to adapt to your needs.)
+
+## Setup ttyd to stream audio to webapp
+
+Change to a dedicated folder, build and install ttyd:
+
+```bash
+cd /opt
+sudo wget wget https://github.com/tsl0922/ttyd/releases/download/1.7.1/ttyd.x86_64 # Change to your architecture and get last version
+sudo mv ttyd.x86_64 ttyd
+sudo chmod +x ttyd
+```
+
+Set up birdnet_ttyd systemd service to start as a daemon:
+
+```bash
+# Copy service template
+sudo cp ./daemon/systemd/templates/birdnet_ttyd.service /etc/systemd/system/birdnet_ttyd.service
+# Edit template and adapt placeholders
+sudo vim /etc/systemd/system/birdnet_ttyd.service
+# Enable and start ttyd service
+sudo systemctl daemon-reload
+sudo systemctl enable --now birdnet_ttyd.service
+```
+
+Then go to [https://birdnet.lan/ttyd](https://birdnet.lan/ttyd) and start streaming logs.
\ No newline at end of file
diff --git a/daemon/systemd/templates/birdnet_ttyd.service b/daemon/systemd/templates/birdnet_ttyd.service
new file mode 100644
index 0000000..a8ebb89
--- /dev/null
+++ b/daemon/systemd/templates/birdnet_ttyd.service
@@ -0,0 +1,14 @@
+[Unit]
+Description=BirdNET-stream logs
+After=syslog.target
+After=network.target
+
+[Service]
+User=<USER>
+Group=<GROUP>
+ExecStart=/opt/ttyd -p 7681 -c birdnet:secret  -t disableReconnect=true --readonly journalctl -feu birdnet_\*
+Restart=always
+Type=simple
+
+[Install]
+WantedBy=multi-user.target
diff --git a/www/nginx.conf.template b/www/nginx.conf.template
index bf5562a..cb34e56 100644
--- a/www/nginx.conf.template
+++ b/www/nginx.conf.template
@@ -51,6 +51,16 @@ server {
 		proxy_pass http://localhost:8000/stream;
     }
 
+	location ~ ^/ttyd(.*)$ {
+    		proxy_http_version 1.1;
+    		proxy_set_header Host $host;
+    		proxy_set_header X-Forwarded-Proto $scheme;
+    		proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+    		proxy_set_header Upgrade $http_upgrade;
+    		proxy_set_header Connection "upgrade";
+    		proxy_pass http://127.0.0.1:7681/$1;
+	}
+
 	access_log /var/log/nginx/birdnet/birdnet-access.log;
 	error_log  /var/log/nginx/birdnet/birdnet-error.log error;
 }