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---
- name: make sure the kubernetes_cri_socket variable is configured correctly
assert:
msg: "The variable kubernetes_cri_socket is not configured correctly. You might need to move your host to the group kubernetes-cluster or standalone-kubelet!"
that:
- kubernetes_cri_socket == "unix:///var/run/cri-dockerd.sock"
- name: create systemd snippet directory
file:
path: /etc/systemd/system/kubelet.service.d/
state: directory
- name: install systemd snippet to make sure kubelet starts after cri-dockerd
copy:
content: |
[Unit]
After=cri-docker.service
dest: /etc/systemd/system/kubelet.service.d/after-docker.conf
- name: disable bridge and iptables in docker daemon config and switch to systemd cgroup driver
set_fact:
docker_daemon_config_override:
exec-opts:
- "native.cgroupdriver=systemd"
bridge: "none"
iptables: false
log-driver: "json-file"
log-opts:
max-size: "20M"
max-file: "3"
- name: override mandatory settings in docker_daemon_config
set_fact:
docker_daemon_config: "{{ docker_daemon_config | default({}) | combine(docker_daemon_config_override, recursive=True, list_merge='append') }}"
- name: install docker
include_role:
name: docker/engine
- name: install cri-dockerd
apt:
name: cri-dockerd
state: present
- name: install systemd units for cri-docker
loop:
- socket
- service
template:
src: "cri-docker.{{ item }}.j2"
dest: "/etc/systemd/system/cri-docker.{{ item }}"
- name: make sure cri-docker is started and enabled
loop:
- socket
- service
systemd:
daemon_reload: yes
name: "cri-docker.{{ item }}"
enabled: yes
state: started
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