Scan for Webcam during generation

Also clean up files

ansible/event-fetch-generate.sh

@@ -2,6 +2,5 @@
 
 set -e
 
-echo "Fetching event inventory"
+echo "Fetching event inventory from Ambrose's infrastructure"
-
 ssh saguaro /usr/local/bin/wireguard-negotiator dump -i wg1 | go run event-generate.go opentech > event

ansible/event-generate.go

@@ -7,6 +7,7 @@ import (
 	"os"
 	"os/exec"
 	"strings"
+	"net"
 )
 
 func main() {
@@ -21,24 +22,34 @@ func main() {
 
 	for s.Scan() {
 		host := s.Text()
-		if strings.HasPrefix(host, "#") {
+		ip := net.ParseIP(host).To16()
-			// Is a comment
+		if ip == nil {
+			// Not a valid IPv6, skip
 			continue
 		}
-		if strings.HasSuffix(host, ":0") {
+		if !bytes.Equal(ip[8:14], []byte{0, 0, 0, 0, 0, 0}) {
-			// Is a "system" host
+			// First subnet is the recorders subnet
+			// Other subnets are "system" hosts
 			continue
 		}
-		hostname, roomId, roomType, err := discover(host, user)
+		hostname, roomType, roomId, webcamName, err := discover(host, user)
 		if err != nil {
 			fmt.Fprintf(os.Stderr, "host %s discovery failed: %v\n", host, err)
 		}
-		fmt.Printf("%s ansible_host=%s ansible_user=%s room_id=%s room_type=%s\n", hostname, host, user, roomId, roomType)
+		fmt.Printf("%s ansible_host=%s ansible_user=%s room_type=%s room_id=%s webcam_name=%s\n", hostname, host, user, roomType, roomId, webcamName)
 	}
 }
 
-func discover(host, user string) (hostname, roomId, roomType string, err error) {
+const script = `
-	cmd := exec.Command("/usr/bin/ssh", "-l", user, host, "sh", "-c", "hostname; cat room_type; cat room_id; exit 0")
+hostname;
+(cat room_type || echo) | head -n 1;
+(cat room_id || echo) | head -n 1;
+(ls /dev/v4l/by-id/ | grep C920 | grep index0 || echo) | cut -d - -f 1,2 | head -n 1;
+(cat /sys/class/net/en*/address || echo) | head -n 1;
+`
+
+func discover(host, user string) (hostname, roomType, roomId, webcamName string, err error) {
+	cmd := exec.Command("/usr/bin/ssh", "-l", user, host, "sh", "-c", script)
 	fmt.Fprintf(os.Stderr, "command: %s\n", cmd)
 	var out bytes.Buffer
 	cmd.Stdout = &out
@@ -55,5 +66,7 @@ func discover(host, user string) (hostname, roomId, roomType string, err error)
 	roomType = strings.TrimSpace(roomType)
 	roomId, _ = out.ReadString('\n')
 	roomId = strings.TrimSpace(roomId)
+	webcamName, _ = out.ReadString('\n')
+	webcamName = strings.TrimSpace(webcamName)
 	return
 }

ansible/group_vars/recorders

@@ -1,5 +1,6 @@
 ---
 
+room_type: unknown
 room_id: unknown
 
 # Overwrite in inventory if cannot cope
@@ -7,9 +8,6 @@ record_profile: 720p
 # Overwrite in inventory if want to use more storage to use less CPU
 record_fast: false
 
-record_user: mixer
-record_home: /home/mixer
-
 # Set to 2 to enable monitoring, 0 to disable
 monitoring_type: 2
 

ansible/roles/laptop/templates/greeter.dconf-defaults

@@ -31,7 +31,7 @@ logo='/opt/login-logo.png'
 # disable-restart-buttons=true
 # - Show a login welcome message
 banner-message-enable=true
-banner-message-text='Hostname: {{ ansible_hostname }}\nUsername: opentech Password: opentech\nUsername: mixer Password: mixer\n{% if autostart %}Mixer Autostart Enabled{% endif %}'
+banner-message-text='Hostname: {{ ansible_hostname }}\n{% if room_type %}Room: {{ room_type }} {{ room_id }}{% endif %}\nUsername: opentech Password: opentech\nUsername: mixer Password: mixer\n{% if autostart %}Mixer Autostart Enabled{% endif %}'
 
 # Automatic suspend
 # =================

ansible/roles/recorder/templates/etc-hosts.j2

@@ -1,4 +0,0 @@
-127.0.0.1	localhost room-{{ room_id }}
-::1		localhost ip6-localhost ip6-loopbac room-{{ room_id }}
-ff02::1		ip6-allnodes
-ff02::2		ip6-allrouters

ansible/roles/recorder/templates/obs-studio/basic/scenes/event_id.json.j2

@@ -102,11 +102,11 @@
 {% if room_type == "setup1" %}
             "device_id": "alsa_input.pci-0000_00_1b.0.analog-stereo"
 {% elif room_type == "setup2" %}
-            "device_id": "alsa_input.usb-046d_HD_Pro_Webcam_C920_CEB3336F-02.analog-stereo"
+            "device_id": "alsa_input.{{ webcam_name }}-02.analog-stereo"
 {% elif room_type == "setup3" %}
-            "device_id": "alsa_input.usb-046d_HD_Pro_Webcam_C920_CEB3336F-02.analog-stereo"
+            "device_id": "alsa_input.{{ webcam_name }}-02.analog-stereo"
 {% else %}
-            "device_id": "alsa_input.usb-046d_HD_Pro_Webcam_C920_CEB3336F-02.analog-stereo"
+            "device_id": "alsa_input.{{ webcam_name }}-02.analog-stereo"
 {% endif %}
         },
         "sync": 0,
@@ -1011,11 +1011,11 @@
 {% if room_type == "setup1" %}
                 "device_id": "/dev/v4l/by-path/pci-0000:00:14.0-usb-0:2:1.0-video-index0",{# X230 LEFT FRONT PORT #}
 {% elif room_type == "setup2" %}
-                "device_id": "/dev/v4l/by-id/usb-046d_HD_Pro_Webcam_C920_CEB3336F-video-index0",
+                "device_id": "/dev/v4l/by-id/usb-{{ webcam_name }}-video-index0",
 {% elif room_type == "setup3" %}
-                "device_id": "/dev/v4l/by-id/usb-046d_HD_Pro_Webcam_C920_CEB3336F-video-index0",
+                "device_id": "/dev/v4l/by-id/usb-{{ webcam_name }}-video-index0",
 {% else %}
-                "device_id": "/dev/v4l/by-id/usb-046d_HD_Pro_Webcam_C920_CEB3336F-video-index0",
+                "device_id": "/dev/v4l/by-id/usb-{{ webcam_name }}-video-index0",
 {% endif %}
                 "framerate": 65566,
                 "input": 0,