Add docker-compose.yml for etcd-v2 cluster #1
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| version: '2' | |||
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This version is of the docker-compose spec not etcd.
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lets also change the path as this is v3?
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@hexfusion I let the path etcd-v2 so we could define an etcd-v3 for docker-compose version 3. It only allows 1 compose file per directory?
Suggestions to the new directory name?
| environment: | ||
| ETCDCTL_API: 3 | ||
| ETCDCTL_ENDPOINTS: http://etcd-1:2379,http://etcd-2:2379,http://etcd-3:2379 | ||
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nice can you tell me how DNS works here? Meaning how does etcd-1resolve?
/cc @retroflexer
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Yeah sure. Docker creates a new local cluster named etcd-dev. You can actually do a docker inspect network etcd-dev and it should give the runtime config for this network.
This puts all the 4 containers in the same bridge. The DNS gets resolved via hostname. Quoting docker-compose documentation Each container can now lookup the hostname web or db and get back the appropriate container’s IP address. This is achieved by docker configuring 3 files inside the container described here
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