net-tools

Alpine image with network tools for testing network issues

Check port connectivity

git clone https://github.com/mesoform/net-tools.git

docker stack deploy -c examples/port-connect-compose.yml net_tools
Creating network net_test_net_tools_test
Creating service net_test_server
Creating service net_test_client

Watch for successful completions of client

watch docker stack ps net_tools

Check logs

docker service logs net_tools_client
net_test_client.1.soc99zrkbtlu@lab2    | Host server not found: 3(NXDOMAIN)
net_test_client.1.soc99zrkbtlu@lab2    | server has address 10.0.3.4
net_test_client.1.soc99zrkbtlu@lab2    | Connection to server 80 port [tcp/http] succeeded!

docker service logs net_tools_server
net_test_server.1.4i9q9vvw8p5i@lab1    | Listening on [0.0.0.0] (family 2, port 80)
net_test_server.1.yvxdyl6g4825@lab1    | Listening on [0.0.0.0] (family 2, port 80)
net_test_server.1.yvxdyl6g4825@lab1    | Connection from 10.0.3.7 56464 received!

Remove stack

docker --context lab2https stack rm net_tools
Removing service net_tools_client
Removing service net_tools_server
Removing network net_tools_test_network
Removing network net_tools_net_tools_test