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| docker_advanced_install_swarm_intro [2020/03/09 11:44] – andonovj | docker_advanced_install_swarm_intro [2020/03/09 12:18] (current) – [Create service] andonovj | ||
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| Line 18: | Line 18: | ||
| * 2 Workers | * 2 Workers | ||
| - | + | ====Automatic==== | |
| - | You can see the creation in the Vagrant section: [[vagrant_docker_install|Multiple Servers Configuration with Vagrant]] | + | You can see the automatic |
| After the setup is done, please be sure that workers, have joined, we can create the service as follows: | After the setup is done, please be sure that workers, have joined, we can create the service as follows: | ||
| - | Manually | + | ====Manual==== |
| + | The creation of the VMs and installation of docker-ce will not be discussed as it has been done in at least 10 other sections. | ||
| + | So let's check how to setup manager and 2 workers: | ||
| - | < | + | ===Initiation=== |
| - | docker swarm join --token SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-1h1yrqixgrme7aypq6c4m0npj | + | The initiation of the Swarm is done from one of the managers as follow: |
| + | < | ||
| + | docker swarm init --listen-addr 10.100.199.200: | ||
| </ | </ | ||
| - | The token can be taken from the manager | + | That command will initialize a swarm with 1 manager who will listen on IP: 10.100.199.200: |
| + | |||
| + | ===Addition=== | ||
| + | To join a swarm a server must have the swarm' | ||
| < | < | ||
| - | [root@mgr1 ~]# docker swarm join-token | + | [root@mgr1 ~]# docker swarm join-token manager |
| - | SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-69b13glzhdgfzh58hbg7jwn69 | + | To add a manager to this swarm, run the following command: |
| - | [root@mgr1 ~]# docker swarm join-token | + | |
| - | SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-1h1yrqixgrme7aypq6c4m0npj | + | docker swarm join --token |
| + | |||
| + | [root@mgr1 ~]# docker swarm join-token worker | ||
| + | To add a worker to this swarm, run the following command: | ||
| + | |||
| + | docker swarm join --token | ||
| [root@mgr1 ~]# | [root@mgr1 ~]# | ||
| + | |||
| </ | </ | ||
| + | |||
| + | Now, it is good idea to ALWAYS add the advertise and listener address to the server: | ||
| + | |||
| + | Manually, workers and manager can be joined to the swarm as follows: | ||
| + | |||
| + | < | ||
| + | docker swarm join --token SWMTKN-1-4mqe4htimsl9wrlzstzx6c18qmibjfjuuihdp3o91pnmssbvml-1h1yrqixgrme7aypq6c4m0npj \ | ||
| + | manager_advertise_ip: | ||
| + | --advertise-addr worker_advert_ip_addr: | ||
| + | --listener-addr worker_listen_ip_addr: | ||
| + | </ | ||
| + | |||
| + | Insert the correct token depending on, if you are adding worker or a manager. The above is for worker. | ||
| =====Create service===== | =====Create service===== | ||
| Line 44: | Line 70: | ||
| <sxh bash> | <sxh bash> | ||
| - | [root@mgr1 ~]# docker service create --name httpDemoService --replicas 3 andonovj/ | + | [root@mgr1 ~]# docker service create --name httpDemoService --replicas 3 -p 80: |
| - | q8s7iiv4rwu7pymf2qnelglgx | + | nz82mserbonjcoccp7iir7hfn |
| overall progress: 3 out of 3 tasks | overall progress: 3 out of 3 tasks | ||
| 1/3: running | 1/3: running | ||
| Line 64: | Line 90: | ||
| sdcosdbt1f94rrvbr8m9ng30s | sdcosdbt1f94rrvbr8m9ng30s | ||
| [root@mgr1 ~]# | [root@mgr1 ~]# | ||
| + | [root@mgr1 ~]# docker service ps httpDemoService | ||
| + | ID NAME IMAGE NODE DESIRED STATE | ||
| + | avcanadogs3e | ||
| + | 6pgfba2xdg0q | ||
| + | me2174rye7nu | ||
| + | [root@mgr1 ~]# | ||
| + | |||
| </ | </ | ||