[prometheus-users] Where and How to declare the ---storage.tsdb.retention.time=90d flag

[Anirudh Pasalapudi]

Hello,


I deployed prometheus using automation and I used a shell file to run the 
configuration file of prometheus. The contents of the file are mentioned 
below. However currently the default storage retention period is 15d. I 
want this to be changed to 90d. I tried to declare the flag 
--storage.tsdb.retention.time=90d in the prometheus.yml file and also in 
the below mentioned bash file. When I do that application is not coming up. 
If I have to add that flag in the below file, where exactly I need to 
declare that flag and how can I do that. Can anyone please help.


#!/bin/bash

prometheus_binary=/apps/prometheus/prometheus-2.19.0.linux-amd64/prometheus
prometheus_pid=/var/run/prometheus.pid

prometheus_flags=--config.file=/apps/prometheus/prometheus-2.19.0.linux-amd64/prometheus.yml

case "$1" in
start)
if [ -f "$prometheus_binary" ]; then
$prometheus_binary $prometheus_flags> /dev/null 2>&1 &
echo $! >$prometheus_pid;
echo $prometheus_flags
fi
;;
stop)
PID=$(cat $prometheus_pid);
kill -9 $PID;
rm -rf $prometheus_pid
;;
restart)
  if [ -f $prometheus_pid ]; then
PID=$(cat $prometheus_pid);
  kill -9 $PID;
  $prometheus_binary $prometheus_flags > /dev/null 2>&1 &
  echo $! >$prometheus_pid
  else
$prometheus_binary -i $prometheus_flags > /dev/null 2>&1 &
echo $! >$prometheus_pid
  fi
exit 0
  ;;
*)
echo "Usage: $0 {start|stop|restart}"
  exit 1
esac
exit 0

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Re: [prometheus-users] Re: how to change the path where prometheus creates data file

[Anirudh Pasalapudi]

Thanks a lot

On Tue, Jun 23, 2020, 2:32 AM Brian Candler  wrote:

> Add a command-line flag to the executable when you start it: e.g.
> --storage.tsdb.path=/var/lib/prometheus/data/
>
> The documentation is here:
> https://prometheus.io/docs/prometheus/latest/storage/#operational-aspects
>
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> 
> .
>

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[prometheus-users] how to change the path where prometheus creates data file

[Anirudh Pasalapudi]

I am trying to change the path of data file creation which will happen when 
prometheus is deployed. I want to make sure that the data file is not 
replaced or rewritten when servers with prometheus crashes and new servers 
are created. Can anyone pls help me how can I achieve this. I am trying to 
deploy/ run prometheus on ec2 servers using ansible playbooks.

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[prometheus-users] How to setup prometheus using ansible

[Anirudh Pasalapudi]

I have a task to setup an environment where I need to have an autoscaling 
group, load balancer and two ec2 instances with prometheus installed on 
them. Along side a single standalone ec2 instance with prom aggregation 
gateway package installed on it. All this has to be set up using ansible. I 
am new to this kind of setup and I really need assistance in writing the 
ansible set up for this architecture. Can any one of you guys please 
provide necessary resources which I can utilize to write automation for 
creating all the above mentioned infrastructure. 

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