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platform: tailnet join must not accept DNS #93

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ExtraToast merged 1 commit into from
Apr 17, 2026
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platform: tailnet join must not accept DNS #93

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7 changes: 6 additions & 1 deletion platform/scripts/bootstrap/bootstrap-tailnet.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -50,10 +50,15 @@ printf '%s\n' "${TS_AUTH_KEY}" |
"${ssh_args[@]}" "${ssh_target}" '
read -r TS_AUTH_KEY
sudo systemctl enable --now tailscaled >/dev/null
# accept-dns=false: otherwise MagicDNS overwrites /etc/resolv.conf with
# 100.100.100.100 only, which k3s then passes to pods — and the pod
# subnet cannot reach the Tailscale kernel resolver, so every pod DNS
# lookup times out. We keep tailnet hostnames resolvable on the host
# via `tailscale status` / explicit `100.64.*.*` use instead.
sudo env TS_AUTH_KEY="${TS_AUTH_KEY}" tailscale up \
--auth-key="${TS_AUTH_KEY}" \
--hostname="'"${NODE_NAME}"'" \
--accept-dns=true
--accept-dns=false
'

"${ssh_args[@]}" "${ssh_target}" "tailscale status"
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