CODEWITHSUNDEEP
kubernetes
J.Woo
J.Woo

Reputation: 417

what does kubernetes use the container pause-amd64 for?

I set up the kubernetes cluster, and I found the pause-amd64:3.0 container on master or minion like this:

[root@k8s-minion1 kubernetes]# docker ps |grep pause
c3026adee957        gcr.io/google_containers/pause-amd64:3.0           "/pause"                 22 minutes ago      Up 22 minutes                           k8s_POD.d8dbe16c_redis-master-343230949-04glm_default_ce3f60a9-095d-11e7-914b-0a77ecd65f3e_66c108d5
202df18d636e        gcr.io/google_containers/pause-amd64:3.0           "/pause"                 24 hours ago        Up 24 hours                             k8s_POD.d8dbe16c_kube-proxy-js0z0_kube-system_2866cfc2-0891-11e7-914b-0a77ecd65f3e_c8e1a667
072d3414d33a        gcr.io/google_containers/pause-amd64:3.0           "/pause"                 24 hours ago        Up 24 hours                             k8s_POD.d8dbe16c_kube-flannel-ds-tsps5_default_2866e3fb-0891-11e7-914b-0a77ecd65f3e_be4b719e
[root@k8s-minion1 kubernetes]#

so what does k8s use this for ?

Upvotes: 11

Views: 3188

Answers (1)

Janos Lenart
Janos Lenart

Reputation: 27080

It's part of the infrastructure. This container is started first in all Pods to setup the network for the Pod.

It does nothing after the Pod has started.

Here is the source code.

Upvotes: 12

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