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Add Kata Containers support to CRI-O runtime (#6830)

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* Enable Kata Containers for CRI-O runtime

Kata Containers is an OCI runtime where containers are run inside
lightweight VMs. This runtime has been enabled for containerd runtime
thru the kata_containers_enabled variable. This change enables Kata
Containers to CRI-O container runtime.

Signed-off-by: Victor Morales <v.morales@samsung.com>

* Set appropiate conmon_cgroup when crio_cgroup_manager is 'cgroupfs'

* Set manage_ns_lifecycle=true when KataContainers is enabed

* Add preinstall check for katacontainers

Signed-off-by: Victor Morales <v.morales@samsung.com>

Co-authored-by: Pasquale Toscano <pasqualetoscano90@gmail.com>
This commit is contained in:
Victor Morales
2020-10-23 03:07:46 -07:00
committed by GitHub
parent 91f1edbdd4
commit e03e3c4582
7 changed files with 61 additions and 20 deletions
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6
roles/kubernetes/preinstall/tasks/0020-verify-settings.yml
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@@ -286,6 +286,12 @@
msg: "download_run_once support only for docker. See https://github.com/containerd/containerd/issues/4075 for details"
when: download_run_once or download_force_cache
- name: Stop if kata_containers_enabled is enabled when container_manager is docker
assert:
that: container_manager != 'docker'
msg: "kata_containers_enabled support only for containerd and crio-o. See https://github.com/kata-containers/documentation/blob/1.11.4/how-to/run-kata-with-k8s.md#install-a-cri-implementation for details"
when: kata_containers_enabled
- name: Stop if download_localhost is enabled for Flatcar Container Linux
assert:
that: ansible_os_family not in ["Flatcar Container Linux by Kinvolk"]