Fix: The following signatures were invalid: EXPKEYSIG 963FA27710458545 Grafana Labs
If you are running Grafana and came across this error:
The following signatures were invalid: EXPKEYSIG 963FA27710458545 Grafana Labs
when updating then I have the solution for you.
mkdir -p /etc/apt/keyrings/
wget -q -O - https://apt.grafana.com/gpg.key | gpg --dearmor > /etc/apt/keyrings/grafana.gpg
echo "deb [signed-by=/etc/apt/keyrings/grafana.gpg] https://apt.grafana.com stable main" | tee /etc/apt/sources.list.d/grafana.list
Enjoy