codep0tato / consul_practice

Used for practicing Consul

Consul Practice Cluster

Featuring the latest:

• Consul
• Consul Template

Prerequisites

docker version

Client:
 Version:      17.09.0-ce
 API version:  1.32
 Go version:   go1.8.3
 Git commit:   afdb6d4
 Built:        Tue Sep 26 22:40:09 2017
 OS/Arch:      darwin/amd64

Server:
 Version:      17.09.0-ce
 API version:  1.32 (minimum version 1.12)
 Go version:   go1.8.3
 Git commit:   afdb6d4
 Built:        Tue Sep 26 22:45:38 2017
 OS/Arch:      linux/amd64
 Experimental: true

Cluster Up

docker-compose up -d

Version (At time of testing.):

docker exec -it consulpractice_consul-template_1 consul-template --version
consul-template v0.19.0 (33b34b3)

Consul Dashboard:

http://localhost:8500

Add a data item to Consul

docker exec -it consulpractice_consul1_1 consul kv put foo bar

(Data in the UI: http://localhost:8500/ui/#/dc1/kv/)

View the generated template

cat generated_template/out.txt

You can't tail because if the file is held open Consul-template can't update it.

If you want to "tail", try this in another terminal:

while true; do clear; cat generated_template/out.txt; sleep 1; done

and then just update the data:

docker exec -it consulpractice_consul1_1 consul kv put foo lolz

Update the data

docker exec -it consulpractice_consul1_1 consul kv put foo yay_bar

View the updated generated template

cat generated_template/out.txt

Cluster Down

docker-compose down

Cleanup

docker ps -a | grep consul | awk '{ print $1 }' | xargs docker rm
docker rmi consul
rm -f generated_template/out.txt