FluxJobMonit_Slack

README Japanese

Monitor the execution status of Plugin FluxMonitor and notify Slack if a problem occurs. This program runs as a pm2 process.

premise

Get the webhook URL to use Slack's Incoming Webhooks.

Please see below for how to register for Slack.
https://qiita.com/11ppm/private/c23f1bf19043fa6e3afb

procedure

Installing jq, bc package

sudo apt install jq bc

git clone

git clone https://github.com/AoiToSouma/FluxJobMonit_Slack.git

cd FluxJobMonit_Slack
chmod +x FluxJobMonit_Slack.sh

Edit configurations

nano slack.conf

Read the instructions in the file and set your preferences.

If you want to detect errors from pm2 logs, define them using blacklists and whitelists.

nano grep_black_list.txt

Blacklists pick up a wide range of errors.

nano grep_white_list.txt

Even among messages extracted using the blacklist,
messages that contain other words that do not need to be detected can be excluded using the whitelist.

If you want to detect Network errors from pm2 logs, edit net_err_list.txt.

nano net_err_list.txt

The default settings already define error messages for WS/RPC errors and block synchronization delays.

PostgreSQL permission settings

Set permissions to connect to PostgreSQL without using the sudo command.

sudo -u postgres -i psql -c "CREATE ROLE \"$(whoami)\" LOGIN;"
sudo -u postgres -i psql -c "ALTER ROLE \"$(whoami)\" WITH LOGIN;"
sudo -u postgres -i psql -c "GRANT USAGE ON SCHEMA public To \"$(whoami)\";"
sudo -u postgres -i psql -d plugin_mainnet_db -c "GRANT SELECT ON ALL TABLES IN SCHEMA public TO \"$(whoami)\";"

Starting the monitoring process

pm2 start FluxJobMonit_Slack.sh
pm2 save