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How to force docker-machine to use private IP instead public

Posted August 3, 2018 2.6k views
Docker

Hi,

I’m using GitLab runners in autoscale mode with DigitalOcean.
I notice that GitLab runner by using Docker Machine use Public IP instead Private.
I precise --digitalocean-private-networking option, but it changes nothing.

When I docker-machine inspect my-machine I saw "PrivateNetworking": true but "IPAddress" is a public one.

Does this the normal behavior? Does this could be changed?

Thanks.

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nicolasPanto
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nicolasPanto

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2 answers
jamisonplatterz November 2, 2018

I’d like to know this too. Currently, I’m having to allow all 2376/tcp traffic from anywhere in the world through my firewall, and I’d really rather not. Can I force docker-machine to use the internal IP?

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sandymcp December 6, 2018 
eval $(docker-machine env test123)
export DOCKER_HOST=$(doctl compute droplet ls --format PrivateIPv4 --no-header test123
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