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mediamtx: substitute hostname/IP before start #977

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mediamtx: substitute hostname/IP before start #977

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f759948
mediamtx: substitute hostname/IP into yaml before start
babo989 Jun 18, 2026
b46ccf9
mediamtx: use runOnInit instead of ExecStartPre for yaml substitution
babo989 Jun 25, 2026
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10 changes: 8 additions & 2 deletions os/mediamtx/mediamtx.service
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Original file line number Diff line number Diff line change
@@ -1,10 +1,16 @@
# https://mediamtx.org/docs/usage/start-on-boot#linux

[Unit]
After=network.target
Wants=network.target
After=network-online.target
Wants=network-online.target

[Service]
# Rewrite /etc/mediamtx.yaml with this device's real hostname and IP before
# mediamtx loads it, replacing the placeholders shipped in the YAML template.
# Without this, WebRTC ICE candidates advertise "raspberrypi" which browsers
# cannot resolve, causing silent peer-connection failures (dashboard preview
# spins forever).
ExecStartPre=/usr/bin/node /opt/PlanktoScope/lib/mediamtx.js
ExecStart=/usr/local/bin/mediamtx /etc/mediamtx.yaml

[Install]
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