how to install latest version of prometheus/promtool in ubuntu?

Question

I downloaded my prometheus version is 2.3.2

wget https://github.com/prometheus/prometheus/releases/download/v2.3.2/prometheus-2.3.2.linux-amd64.tar.gz

untared and prometheus already running as service.

I want to verify my Prometheus alert manager rule using promtool. created one rule from below blog.

https://petargitnik.github.io/blog/2018/01/04/how-to-write-rules-for-prometheus

when I run the promtool check rules /etc/prometheus/prometheus.rules.yml

it says, Promtheus not installed, so installed again using apt get prometheus

but this is installed older verion of promtool, here is version details:

    root@UTVA-kafka-msg-size-2mb-02509:/home/ubuntu# promtool version
prometheus, version 0.16.2+ds (branch: debian/sid, revision: 0.16.2+ds-1ubuntu1)

build user:       [email protected]
  build date:       20160408-04:15:29
  go version:       go1.6

Prometheus version 2 using yml file for rules, older usign some different one, so my promtool check-rules is failing.

Can anyone suggest how to upgrade latest promtool?

Thanks.

Answer 1

You can use go to install the latest/desired version directly from github. Make sure you have go setup. For convenience also add GOPATH to your PATH, e.g. for ZSH:

export PATH=$PATH:$GOPATH/bin

And then you can install it using go get:

GO111MODULE=on go get github.com/prometheus/prometheus/cmd/promtool

Now that you have GOPATH in your PATH you can simply call it from your shell:

➜  ~ promtool --version
promtool, version  (branch: , revision: )
 build user:
 build date:
 go version:       go1.12.7

EDIT:

Make sure you prepend GO111MODULE=on to the go command as the vendor directory has been removed