c12s-kubespray/roles/network_plugin/flannel/templates/cni-flannel.yml.j2

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---
kind: ConfigMap
apiVersion: v1
metadata:
name: kube-flannel-cfg
namespace: kube-system
labels:
tier: node
app: flannel
data:
cni-conf.json: |
{
"name": "cbr0",
"cniVersion": "0.3.1",
"plugins": [
{
"type": "flannel",
"delegate": {
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"hairpinMode": true,
"isDefaultGateway": true
}
},
{
"type": "portmap",
"capabilities": {
"portMappings": true
}
}
]
}
net-conf.json: |
{
"Network": "{{ kube_pods_subnet }}",
"Backend": {
"Type": "{{ flannel_backend_type }}"{% if flannel_backend_type == "vxlan" %},
"VNI": {{ flannel_vxlan_vni }},
"Port": {{ flannel_vxlan_port }}
{% endif %}
}
}
{% for arch in ['amd64', 'arm64', 'arm', 'ppc64le', 's390x'] %}
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
{% if arch == 'amd64' %}
name: kube-flannel
{% else %}
name: kube-flannel-ds-{{ arch }}
{% endif %}
namespace: kube-system
labels:
tier: node
app: flannel
spec:
selector:
matchLabels:
app: flannel
template:
metadata:
labels:
tier: node
app: flannel
spec:
priorityClassName: system-node-critical
serviceAccountName: flannel
containers:
- name: kube-flannel
image: {{ flannel_image_repo }}:{{ flannel_image_tag | regex_replace(image_arch,'') }}{{ arch }}
imagePullPolicy: {{ k8s_image_pull_policy }}
resources:
limits:
cpu: {{ flannel_cpu_limit }}
memory: {{ flannel_memory_limit }}
requests:
cpu: {{ flannel_cpu_requests }}
memory: {{ flannel_memory_requests }}
command: [ "/opt/bin/flanneld", "--ip-masq", "--kube-subnet-mgr"{% if flannel_interface is defined %}, "--iface={{ flannel_interface }}"{% endif %}{% if flannel_interface_regexp is defined %}, "--iface-regex={{ flannel_interface_regexp }}"{% endif %} ]
securityContext:
privileged: false
capabilities:
add: ["NET_ADMIN"]
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
volumeMounts:
- name: run
mountPath: /run/flannel
- name: flannel-cfg
mountPath: /etc/kube-flannel/
affinity:
nodeAffinity:
requiredDuringSchedulingIgnoredDuringExecution:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/os
operator: In
values:
- linux
- key: kubernetes.io/arch
operator: In
values:
- {{ arch }}
initContainers:
- name: install-cni-plugin
image: {{ flannel_init_image_repo }}:{{ flannel_init_image_tag }}
command:
- cp
args:
- -f
- /flannel
- /opt/cni/bin/flannel
volumeMounts:
- name: cni-plugin
mountPath: /opt/cni/bin
- name: install-cni
image: {{ flannel_image_repo }}:{{ flannel_image_tag | regex_replace(image_arch,'') }}{{ arch }}
command:
- cp
args:
- -f
- /etc/kube-flannel/cni-conf.json
- /etc/cni/net.d/10-flannel.conflist
volumeMounts:
- name: cni
mountPath: /etc/cni/net.d
- name: flannel-cfg
mountPath: /etc/kube-flannel/
hostNetwork: true
dnsPolicy: ClusterFirstWithHostNet
tolerations:
- operator: Exists
volumes:
- name: run
hostPath:
path: /run/flannel
- name: cni
hostPath:
path: /etc/cni/net.d
- name: flannel-cfg
configMap:
name: kube-flannel-cfg
- name: cni-plugin
hostPath:
path: /opt/cni/bin
updateStrategy:
rollingUpdate:
maxUnavailable: {{ serial | default('20%') }}
type: RollingUpdate
{% endfor %}