11-instrumentation.sh

chmod +x scripts/dm-swarm-11.sh

./scripts/dm-swarm-11.sh

eval $(docker-machine env swarm-1)

docker stack ls

docker service create --name util \
    --mode global \
    --network proxy \
    alpine sleep 1000000

ID=$(docker container ls -q \
    -f "label=com.docker.swarm.service.name=util")

docker container exec -it $ID sh

apk add --update curl

curl "http://swarm-listener:8080/metrics"

exit

docker service update \
    --mount-rm /var/run/docker.sock \
    proxy_swarm-listener

docker service logs proxy_swarm-listener

docker container exec -it $ID sh

curl "http://swarm-listener:8080/metrics"

exit

docker stack deploy \
    -c stacks/docker-flow-proxy-mem.yml \
    proxy

docker service rm proxy_proxy

docker stack deploy \
    -c stacks/go-demo-scale.yml \
    go-demo

docker service logs proxy_swarm-listener

docker container exec -it $ID sh

curl "http://swarm-listener:8080/metrics"

exit

docker stack deploy \
    -c stacks/docker-flow-proxy-mem.yml \
    proxy

docker container exec -it $ID sh

curl "http://swarm-listener:8080/metrics"

exit

docker service rm go-demo_main

docker container exec -it $ID sh

curl "http://swarm-listener:8080/metrics"

exit

docker stack deploy \
    -c stacks/go-demo-scale.yml \
    go-demo

for i in {1..100}; do
    curl "http://$(docker-machine ip swarm-1)/demo/hello"
done

docker container exec -it $ID sh

curl "http://go-demo_main:8080/metrics"

exit

for i in {1..100}; do
    curl "http://$(docker-machine ip swarm-1)/demo/random-error"
done

docker container exec -it $ID sh

curl "http://go-demo_main:8080/metrics"

exit

for i in {1..30}; do
    DELAY=$[ $RANDOM % 6000 ]
    curl "http://$(docker-machine ip swarm-1)/demo/hello?delay=$DELAY"
done

docker container exec -it $ID sh

curl "http://go-demo_main:8080/metrics"

exit

docker-machine rm -f swarm-1 swarm-2 swarm-3