This shows how to create a Docker Swarm cluster on Barge with Docker Swarm Mode and Vagrant instantly.
It's inspired by DockerCon16 KeyNote and "What's New in Docker" session.
$ git clone https://github.com/ailispaw/swarm-barge
$ cd swarm-barge
$ make upThat's it.
$ ssh -F .ssh_config node-01
Welcome to Barge 2.8.0, Docker version 18.02.0-ce, build fc4de44
[bargee@node-01 ~]$ docker node ls
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
h7edyaxyecsgfknmemxfs2nfg * node-01 Ready Active Leader
cq7em3k7l9grtu9qtmpyt0b22 node-02 Ready Active
wtjh4uh9qao20j96vtdhya0eh node-03 Ready Active[bargee@node-01 ~]$ docker service create -d --name vote -p 8080:80 instavote/vote
8rarm6anpwoi2bdgh9epl352j
[bargee@node-01 ~]$ docker service ps vote
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
t2w6e990h9tt vote.1 instavote/vote:latest node-01 Running Running 1 second ago
[bargee@node-01 ~]$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
f6e6009dbac9 instavote/vote:latest "gunicorn app:app ..." 17 seconds ago Up 16 seconds 80/tcp vote.1.t2w6e990h9tt8bwe7syy4m9pj$ open http://192.168.65.101:8080/
[bargee@node-01 ~]$ docker service scale vote=3
vote scaled to 3
overall progress: 3 out of 3 tasks
1/3: running [==================================================>]
2/3: running [==================================================>]
3/3: running [==================================================>]
verify: Service converged
[bargee@node-01 ~]$ docker service ps vote
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
t2w6e990h9tt vote.1 instavote/vote:latest node-01 Running Running about a minute ago
7ikfah5ba5gt vote.2 instavote/vote:latest node-02 Running Running 20 seconds ago
sc2c5lnlkezf vote.3 instavote/vote:latest node-03 Running Running 21 seconds ago[bargee@node-01 ~]$ sudo pkg install iproute2
[bargee@node-01 ~]$ sudo pkg install ipvsadm
[bargee@node-01 ~]$ sudo ls -l /var/run/docker/netns
total 0
-r--r--r-- 1 root root 0 Oct 18 18:26 1-94du9n58gw
-r--r--r-- 1 root root 0 Oct 18 18:27 b973053ec9b7
-r--r--r-- 1 root root 0 Oct 18 18:26 ingress_sbox
[bargee@node-01 ~]$ sudo mkdir -p /var/run/netns
[bargee@node-01 ~]$ sudo ln -s /var/run/docker/netns/ingress_sbox /var/run/netns/lbingress
[bargee@node-01 ~]$ sudo ip netns exec lbingress ipvsadm -L
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
FWM 256 rr
-> 10.255.0.6:0 Masq 1 0 2
-> 10.255.0.7:0 Masq 1 0 0
-> 10.255.0.8:0 Masq 1 0 0$ open http://192.168.65.101:8080/You will see 3 container ID at the bottom of the page on each reloading.
And the following as well.
$ open http://192.168.65.102:8080/
$ open http://192.168.65.103:8080/[bargee@node-01 ~]$ docker node update --availability=drain node-03
node-03
[bargee@node-01 ~]$ docker node ls
ID HOSTNAME STATUS AVAILABILITY MANAGER STATUS
h7edyaxyecsgfknmemxfs2nfg * node-01 Ready Active Leader
cq7em3k7l9grtu9qtmpyt0b22 node-02 Ready Active
wtjh4uh9qao20j96vtdhya0eh node-03 Ready Drain
[bargee@node-01 ~]$ docker service ps vote
ID NAME IMAGE NODE DESIRED STATE CURRENT STATE ERROR PORTS
t2w6e990h9tt vote.1 instavote/vote:latest node-01 Running Running 3 minutes ago
7ikfah5ba5gt vote.2 instavote/vote:latest node-02 Running Running 2 minutes ago
le7ocmmwplwr vote.3 instavote/vote:latest node-02 Running Running 18 seconds ago
sc2c5lnlkezf \_ vote.3 instavote/vote:latest node-03 Shutdown Shutdown 18 seconds ago[bargee@node-01 ~]$ docker service rm vote
vote
[bargee@node-01 ~]$ docker service ps vote
no such services: vote
[bargee@node-01 ~]$ docker service ls
ID NAME MODE REPLICAS IMAGE PORTS
[bargee@node-01 ~]$ docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES