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Docker - what use is it? (sh.itjust.works)

submitted 7 months ago by Amongussussyballs100@sh.itjust.works to c/selfhosted@lemmy.world

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I see Docker mentioned every other thread and was wondering how useful it is for non development things, and if so what they are.

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[–] clmbmb@lemmy.dbzer0.com 2 points 7 months ago* (last edited 7 months ago)

The answer is yes in both cases.

Docker has an internal networking setup. You can create a "network" and all containers in that network communicate with each other, but not with other containers in other networks. So you can set up a VPN container in a network and all containers in that netowrk could use the VPN to route their traffic through.
You can configure your VPN container to expose some ports that it uses to communicate, and then the "regular applications" can make use of those ports to connect through the VPN.