AWS EC2 Relabel IF public IP exists

[joehgo...@gmail.com]

I have a bunch of AWS instances.  Some have public IP addresses and some only have RFC-1918 addressing and we access them via VPN.  I have been trying to figure out a regex to relabel only those instances with public IP addresses.  The Prometheus server has access to all the privately addressed servers via those IP's but must access the publicly accessible servers via their public IP.

I am pretty flexible to a solution, so if I need to add some tagging to make this easier, I am open to that.

Thanks,

Joe

[Brian Brazil]

On 19 March 2018 at 21:20, <joehgo...@gmail.com> wrote:

I have a bunch of AWS instances.  Some have public IP addresses and some only have RFC-1918 addressing and we access them via VPN.  I have been trying to figure out a regex to relabel only those instances with public IP addresses.  The Prometheus server has access to all the privately addressed servers via those IP's but must access the publicly accessible servers via their public IP.

I am pretty flexible to a solution, so if I need to add some tagging to make this easier, I am open to that.

No need for that, you can do:

- source_labels: [__meta_ec2_public_ip]

  regex: (.+)

  replacement: ${1}:1234

  target_label: __address__

The + requires at least one matching character, so won't match a missing/empty label.

Brian

 

Thanks,

Joe

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Brian Brazil

www.robustperception.io