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Thursday, September 5, 2019

A systemd service file for the Prometheus PostgreSQL storage adapter

The Prometheus PostgreSQL storage adapter does not seem amenable to being executed directly from a systemd service file.

As a workaround I created a wrapper script like this (adjust parameters as required):

#!/bin/bash

# Wrapper to launch prometheus-postgresql-adapter, as calling
# it directly from the systemd service file doesn't seem to work.
#
# Disclaimer: there is probably a better way of doing this.

nohup /usr/local/bin/prometheus-postgresql-adapter \
-pg-host=... \
-pg-port=... \
-pg-database="..." \
-pg-user="..." \
>> /var/log/prometheus-postgresql-storage-adapter/prometheus-pg-adapter.log 2>&1

and a service file like this:

[Unit]
Description=Prometheus PostgreSQL Storage Adapter
Documentation=https://github.com/timescale/prometheus-postgresql-adapter
Wants=network-online.target
After=network-online.target

[Service]
Type=simple
User=prometheus
Group=prometheus
ExecStart=/usr/local/bin/prometheus-postgresql-adapter-wrapper
Restart=on-failure

[Install]
WantedBy=multi-user.target

which works fine (YMMV of course).

There may of course be a more elegant way of solving this issue, if so feel free to share.

Posted at 1:31 AM |Comments (1)

Comments
Приветик всем, я тут новенький "352"
Posted by: ThomasCaula | 2019-09-13 05:56
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