Domain Watchdog
An app that monitors domain names using RDAP, tracks their history, and helps you acquire them when they expire
- 1Copy the script below
- 2In HexOS, open Apps, find Domain Watchdog and choose Custom Install
- 3Paste, then press Install — full guide with screenshots
1{
12 "version": 5,
23 "script": {
4 "version": "0.1.0",
5 "changeLog": "Auto-generated draft from TrueNAS domain-watchdog 1.2.35"
6 },
7 "requirements": {
38 "locations": ["ApplicationsPerformance"],
49 "specifications": ["2CORE"],
510 "permissions": ["READ_WRITE_LOCATIONS"],
611 "ports": [30317]
12 },
713 "ensure_directories_exists": [
14 {"path": "$LOCATION(ApplicationsPerformance)"},
15 {"path": "$LOCATION(ApplicationsPerformance)/domain-watchdog"},
16 {
17 "path": "$LOCATION(ApplicationsPerformance)/domain-watchdog/data",
18 "snapshot": {"id": "data"}
19 },
20 {
21 "path": "$LOCATION(ApplicationsPerformance)/domain-watchdog/config",
22 "snapshot": {"id": "config"}
23 },
24 {
25 "path": "$LOCATION(ApplicationsPerformance)/domain-watchdog/postgres_data",
26 "owner": {"user": "netdata", "group": "docker"},
27 "snapshot": {"id": "postgres_data"}
28 }
29 ],
30 "app_values": {
31 "domain_watchdog": {
832 "db_password": "$RANDOM_STRING(16)",
933 "redis_password": "$RANDOM_STRING(16)",
1034 "app_secret": "$RANDOM_STRING(32)",
1135 "jwt_passphrase": "$RANDOM_STRING(32)"
36 },
37 "storage": {
1238 "data": "$HOST_PATH($LOCATION(ApplicationsPerformance)/domain-watchdog/data)",
1339 "config": "$HOST_PATH($LOCATION(ApplicationsPerformance)/domain-watchdog/config)",
1440 "postgres_data": "$HOST_PATH($LOCATION(ApplicationsPerformance)/domain-watchdog/postgres_data)"
41 },
42 "network": {
1543 "web_port": {"bind_mode": "published", "port_number": 30317}
44 },
1645 "resources": {"limits": {"cpus": 2, "memory": "$MEMORY(10%, 4096)"}}
46 }
47}
What this script does
Hover or tap a box to see the lines it explains.
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Script format
Tells HexOS this is a version 5 install script, so it knows how to read the rest.
Line 2
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Script revision
This copy of the script is revision 0.1.0. Latest change: “Auto-generated draft from TrueNAS domain-watchdog 1.2.35”.
Lines 3–6
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Storage locations it needs
The app uses these HexOS storage locations: App storage (fast). If one isn't set up yet, HexOS will ask you to pick a place for it.
Line 8
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Minimum hardware
Recommended minimum: 2 CPU cores.
Line 9
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Permission to use your folders
Allows the app to read and write files inside the storage locations listed above — and nowhere else.
Line 10
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Network ports
The app needs port 30317 to be free on your server. A port is like an apartment number for your server's address.
Line 11
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Folders created on install
Creates the folders the app needs before it starts: App storage (fast) › domain-watchdog, App storage (fast) › domain-watchdog › data, App storage (fast) › domain-watchdog › config and App storage (fast) › domain-watchdog › postgres_data. Some folders are handed to a specific system user so the app is allowed to write to them. Folders marked “snapshot” are included in HexOS snapshots, so you can roll them back.
Lines 13–29
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Auto-generated db password
HexOS makes up a long random db password during install. It's only used inside Domain Watchdog, so you never need to know it.
Line 32
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Auto-generated redis password
HexOS makes up a long random redis password during install. It's only used inside Domain Watchdog, so you never need to know it.
Line 33
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Auto-generated app secret
HexOS makes up a long random app secret during install. It's only used inside Domain Watchdog, so you never need to know it.
Line 34
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Auto-generated jwt passphrase
HexOS makes up a long random jwt passphrase during install. It's only used inside Domain Watchdog, so you never need to know it.
Line 35
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Where the app's main data is saved
Where the app's main data is saved on your server: App storage (fast) › domain-watchdog › data.
Line 38
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Where the app's settings is saved
Where the app's settings is saved on your server: App storage (fast) › domain-watchdog › config.
Line 39
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Where the app's database is saved
Where the app's database is saved on your server: App storage (fast) › domain-watchdog › postgres_data.
Line 40
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Web port: 30317
The app's web page is published on port 30317. You don't need to remember it — clicking the app's card in HexOS takes you there.
Line 43
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Resource limits
Caps how much of your server the app can use: 2 CPU cores and 10% of your server's memory, but never more than 4 GB. This keeps one busy app from slowing everything else down.
Line 45