# What doing each system container (solved)

**URL:** <https://forums.suse.com/t/what-doing-each-system-container-solved/8111>\
**Category:** General\
**Created:** [December 27, 2017, 6:51pm UTC](https://forums.suse.com/t/what-doing-each-system-container-solved/8111 "2017-12-27T18:51:49Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![paulohms](https://avatars.discourse-cdn.com/v4/letter/p/47e85d/32.png) [@paulohms](https://forums.suse.com/u/paulohms)\
**Post date:** [December 27, 2017, 6:51pm UTC](https://forums.suse.com/t/what-doing-each-system-container-solved/8111/1 "2017-12-27T18:51:49Z")

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Hi Everyone,

I would like know what doing each system rancher container to understanding better the rancher behavior

- healthcheck
- ipsec
- cni-driver
- network-manager
- metadata
- rancher-agent

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**Author:** ![paulohms](https://avatars.discourse-cdn.com/v4/letter/p/47e85d/32.png) [@paulohms](https://forums.suse.com/u/paulohms)\
**Post date:** [December 29, 2017, 6:56pm UTC](https://forums.suse.com/t/what-doing-each-system-container-solved/8111/2 "2017-12-29T18:56:55Z")

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hello? hi?? anyone???

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**Author:** ![vincent](https://sea2.discourse-cdn.com/flex022/user_avatar/forums.suse.com/vincent/32/7156_2.png) [@vincent](https://forums.suse.com/u/vincent)\
**Post date:** [December 29, 2017, 11:51pm UTC](https://forums.suse.com/t/what-doing-each-system-container-solved/8111/3 "2017-12-29T23:51:22Z")

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It’s a holiday week for many people, and many of these are self-explanatory.

- healthcheck: When you define a [healthcheck](http://rancher.com/docs/rancher/v1.6/en/cattle/health-checks/) on a service the check you define is performed at the interval you defined on up to 3 other hosts. They run in this container (which is basically haproxy).

- network-manager, cni-driver, and ipsec: Sets up the IPSec tunnels that create the [managed network](http://rancher.com/docs/rancher/v1.6/en/rancher-services/networking/) to enable container communication across hosts and making container ports reachable on public host ports via managing iptables rules.

- metadata: Runs the rancher [metadata](http://rancher.com/docs/rancher/v1.6/en/rancher-services/metadata-service/) and [dns](http://rancher.com/docs/rancher/v1.6/en/rancher-services/dns-service/) services for containers to use

- rancher-agent: Opens the connection to the rancher/server container and performs the actions on the host that the server tells it to (i.e. creating/starting/stopping/removing containers)

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**Author:** ![paulohms](https://avatars.discourse-cdn.com/v4/letter/p/47e85d/32.png) [@paulohms](https://forums.suse.com/u/paulohms)\
**Post date:** [January 3, 2018, 3:42pm UTC](https://forums.suse.com/t/what-doing-each-system-container-solved/8111/4 "2018-01-03T15:42:46Z")

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Thank very much vincent