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onboard-spoke.sh: add key selection prompt for tunnel auth, use explicit -i flag for all SSH calls, clarify hub key installation header

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Justin Oros
2026-04-19 13:05:29 -07:00
parent fe3f2c5b77
commit f486795154
2 changed files with 32 additions and 5 deletions
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README.md
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@@ -37,12 +37,18 @@ cd tinyboard
### Adding the Spoke's Public Key to the Hub
During `setup-spoke.sh`, a key pair is generated on the spoke for the autossh tunnel. The script will display the public key and pause. Before pressing ENTER, the hub owner must add the public key to the hub user's `authorized_keys`:
During `setup-spoke.sh`, a key pair is generated on the spoke for the autossh tunnel. The script will display the public key and pause. Before pressing ENTER, the hub owner must add the public key to the hub user's `authorized_keys`. Run this on the hub as the hub user (e.g. `armbian`):
```bash
echo "<paste public key here>" >> ~/.ssh/authorized_keys
```
Or as root:
```bash
echo "<paste public key here>" >> /home/armbian/.ssh/authorized_keys
```
Once the key is added, press ENTER on the spoke to continue. The script will test the SSH connection and if successful, bring up the tunnel.
The private key never leaves the spoke — only the public key is shared.