Magnum Kuernetes源码分析(一)
resources: fixed_network: //kubernetes集群的内网，所有创建出来的node，都会在该内网中type: OS::Neutron::Net
properties:
name: private
fixed_subnet: //kubernetes集群的内网子网，所有创建出来的node，都会分配该子网的ip地址
type: OS::Neutron::Subnet
properties:
cidr: {get_param: fixed_network_cidr}
network: {get_resource: fixed_network}
dns_nameservers:
- {get_param: dns_nameserver}
extrouter: //对外的外网路由
type: OS::Neutron::Router
properties:
external_gateway_info:
network: {get_param: external_network}
extrouter_inside: //内网路由，连接外网
type: OS::Neutron::RouterInterface
properties:
router_id: {get_resource: extrouter}
subnet: {get_resource: fixed_subnet}
secgroup_base: //基础安全组
type: OS::Neutron::SecurityGroup
properties:
rules:
- protocol: icmp
- protocol: tcp
port_range_min: 22
port_range_max: 22
secgroup_kube_master: //供master使用的安全组
type: OS::Neutron::SecurityGroup
properties:
rules:
- protocol: tcp
port_range_min: 7080
port_range_max: 7080
- protocol: tcp
port_range_min: 8080
port_range_max: 8080
- protocol: tcp
port_range_min: 2379
port_range_max: 2379
- protocol: tcp
port_range_min: 2380
port_range_max: 2380
- protocol: tcp
port_range_min: 6443
port_range_max: 6443
- protocol: tcp
port_range_min: 30000
port_range_max: 32767
secgroup_kube_minion: //供minion使用的安全组
type: OS::Neutron::SecurityGroup
properties:
rules:
- protocol: icmp
- protocol: tcp
- protocol: udp
######################################################################
#
# load balancers.
#
api_monitor: //kube-api的负载均衡监控
type: OS::Neutron::HealthMonitor
properties:
type: TCP
delay: 5
max_retries: 5
timeout: 5
api_pool: //kube-api的负载均衡池
type: OS::Neutron::Pool
properties:
protocol: {get_param: loadbalancing_protocol}
monitors: [{get_resource: api_monitor}]
subnet: {get_resource: fixed_subnet}
lb_method: ROUND_ROBIN
vip:
protocol_port: {get_param: kubernetes_port}
api_pool_floating: //kube-api的浮动ip
type: OS::Neutron::FloatingIP
depends_on:
- extrouter_inside
properties:
floating_network: {get_param: external_network}
port_id: {get_attr: }
etcd_monitor: //etcd的负载均衡监控
type: OS::Neutron::HealthMonitor
properties:
type: TCP
delay: 5
max_retries: 5
timeout: 5
etcd_pool: //etcd的负载均衡池
type: OS::Neutron::Pool
properties:
protocol: HTTP
monitors: [{get_resource: etcd_monitor}]
subnet: {get_resource: fixed_subnet}
lb_method: ROUND_ROBIN
vip:
protocol_port: 2379
######################################################################
#
# kubernetes masters. This is a resource group that will create
# <number_of_masters> masters.
#
kube_masters: //master资源组
type: OS::Heat::ResourceGroup
depends_on:
- extrouter_inside
properties:
count: {get_param: number_of_masters} //创建的master数量
resource_def:
type: kubemaster.yaml //创建master的模板
properties:
...
######################################################################
#
# kubernetes minions. This is an resource group that will initially
# create <number_of_minions> minions, and needs to be manually scaled.
#
kube_minions: //minion资源组
type: OS::Heat::ResourceGroup
depends_on:
- extrouter_inside
- kube_masters
properties:
count: {get_param: number_of_minions} //创建的minion数量
removal_policies: [{resource_list: {get_param: minions_to_remove}}]
resource_def:
type: kubeminion.yaml //创建minion的模板
properties:
...
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