Linux/Docker/Swarm: Difference between revisions
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docker service ls | docker service ls | ||
docker node ps node1 node2 node3 | |||
</pre> | </pre> | ||
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docker node rm node1 | docker node rm node1 | ||
docker node inspect node1 | docker node inspect node1 | ||
docker node inspect --pretty node1 | |||
docker node update --role manager node1 | docker node update --role manager node1 | ||
docker node update --availability drain node1 # pause node and move load to other nodes | |||
docker node update --availability active node1 # unpause and send back to work | |||
from node: | from node: | ||
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</pre> | </pre> | ||
== Services == | |||
<pre> | |||
docker service create --replicas 4 --name service1 alpine ping google.com | |||
docker service ls # list services | |||
docker service ps service1 # list instances of service on nodes | |||
docker service logs service1 -f | |||
docker service scale service1=0 | |||
docker service rm service1 | |||
docker service update --image alpine service1 | |||
</pre> | |||
[[Category:Linux/Docker]] | [[Category:Linux/Docker]] | ||
[[Category:Linux]] | [[Category:Linux]] |
Revision as of 19:16, 5 December 2021
Create swarm
- on manager
docker swarm init --advertise-addr <MANAGER-IP> -> copy command from here to join from nodes. e.g.: docker swarm join --token SWMTKN-1-5fs8k04yvhalpcok7xa8ktryuin55w4gt1wf1aaj9vawwh52hx-1uk9i6yz3q7j7bzuqdun2xqwy 192.168.1.226:2377
- show token
docker swarm join-token manager
Stats / Info
docker node ls docker service ls docker node ps node1 node2 node3
Manage nodes
from manager: docker node promote node1 docker node demote node1 docker node rm node1 docker node inspect node1 docker node inspect --pretty node1 docker node update --role manager node1 docker node update --availability drain node1 # pause node and move load to other nodes docker node update --availability active node1 # unpause and send back to work from node: docker swarm leave
Services
docker service create --replicas 4 --name service1 alpine ping google.com docker service ls # list services docker service ps service1 # list instances of service on nodes docker service logs service1 -f docker service scale service1=0 docker service rm service1 docker service update --image alpine service1