Stack network 3

[freignat91]

related to #313
Use external network in stack, using syntaxes:

services:
  myservice:
     networks:
        anexternalnetwork
networks:
   anexternalnetwork:
     external: true

or

services:
  myservice:
     networks:
        myexternalnetwork
networks:
   myexternalnetwork:
     external:
        name: anexternalnetwwork

two tests has been added, sample-12.ym for the first syntax, sample-13.yml for the second.

test: (seems long, but fast to test in fact)

• stop amp: sudo ./swarm stop
• rebuild amp: make install
• start amp: sudo ./swarm start
• launch amplifier locally

first syntax test:

• create stack test1: amp stack up test1 -f api/rpc/stack/test_samples/sample-12.yml
• search test1-pinger container id: docker ps | grep test1-pinger
• inspect the container: docker inspect [containerId]
• see that the container is attached to amp-infra in the networks section
• search haproxy: docker ps | grep haproxy
• enter in HAProxy container: docker exec -it [haproxyId] sh
• in the container verify that we can ping the service: ping ext1-pinger
• It shows that the ext1-pinger service is well attached to the amp-infra network as an external

second syntax test:

• create stack test2: amp stack up test2 -f api/rpc/stack/test_samples/sample-13.yml
• search test2-pinger container id: docker ps | grep test2-pinger
• inspect the container: docker inspect [containerId]
• see that the container is attached to amp-infra in the networks section
• to test the second syntax for an external network:
• re-enter in HAProxy container: docker exec -it [haproxyId] sh
• in the container verify that we can ping the service: ping ext2-pinger
• It shows that the ext2-pinger service is well attached to the amp-infra network as an external

regression test:

• make test

[bquenin]

Tested locally and working

[subfuzion]

We still have to work out the security / policy ramifications of sharing networks between stacks vs. publishing; however, this is good work that we can experiment with and evolve. Nice job! 👍