c12s-kubespray/roles/kubernetes/node/tasks/main.yml

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---
- set_fact:
standalone_kubelet: >-
{%- if inventory_hostname in groups['kube-master'] and inventory_hostname not in groups['kube-node'] -%}true{%- else -%}false{%- endif -%}
tags: facts
- include: pre_upgrade.yml
tags: kubelet
- name: Ensure /var/lib/cni exists
file:
path: /var/lib/cni
state: directory
mode: 0755
- include: install.yml
tags: kubelet
- include: nginx-proxy.yml
when: is_kube_master == false and loadbalancer_apiserver_localhost|default(true)
tags: nginx
- name: Write kubelet config file
template:
src: kubelet.j2
dest: "{{ kube_config_dir }}/kubelet.env"
backup: yes
notify: restart kubelet
tags: kubelet
- name: write the kubecfg (auth) file for kubelet
template:
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src: "{{ item }}-kubeconfig.yaml.j2"
dest: "{{ kube_config_dir }}/{{ item }}-kubeconfig.yaml"
backup: yes
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with_items:
- node
- kube-proxy
notify: restart kubelet
tags: kubelet
- name: Ensure nodePort range is reserved
sysctl:
name: net.ipv4.ip_local_reserved_ports
value: "{{ kube_apiserver_node_port_range }}"
sysctl_set: yes
state: present
reload: yes
when: kube_apiserver_node_port_range is defined
tags: kube-proxy
- name: Verify if br_netfilter module exists
shell: "modinfo br_netfilter"
register: modinfo_br_netfilter
failed_when: modinfo_br_netfilter.rc not in [0, 1]
changed_when: false
- name: Enable br_netfilter module
modprobe:
name: br_netfilter
state: present
when: modinfo_br_netfilter.rc == 0
# kube-proxy needs net.bridge.bridge-nf-call-iptables enabled when found if br_netfilter is not a module
- name: Check if bridge-nf-call-iptables key exists
command: "sysctl net.bridge.bridge-nf-call-iptables"
failed_when: false
changed_when: false
register: sysctl_bridge_nf_call_iptables
- name: Enable bridge-nf-call tables
sysctl:
name: "{{ item }}"
state: present
value: 1
reload: yes
when: modinfo_br_netfilter.rc == 1 and sysctl_bridge_nf_call_iptables.rc == 0
with_items:
- net.bridge.bridge-nf-call-iptables
- net.bridge.bridge-nf-call-arptables
- net.bridge.bridge-nf-call-ip6tables
- name: Write proxy manifest
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template:
src: manifests/kube-proxy.manifest.j2
dest: "{{ kube_manifest_dir }}/kube-proxy.manifest"
tags: kube-proxy
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# reload-systemd
- meta: flush_handlers
- name: Enable kubelet
service:
name: kubelet
enabled: yes
state: started
tags: kubelet