# flask-k8s

**Repository Path**: goooood/flask-k8s

## Basic Information

- **Project Name**: flask-k8s
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: GPL-2.0
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2020-09-23
- **Last Updated**: 2020-12-18

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

flask返回json数据

jsonify:
对数组直接可以使用
Content-Type: application/json

json.dumps()
返回类型:Content-Type: text/html; charset=utf-8

#方法1
# return jsonify(list_dict)
#方法2
# return  json.dumps(list_dict)
#方法3
# return Response(json.dumps(list_dict),content_type='application/json')
#方法4 同时返回状态
#return make_response(jsonify(list_dict),201)




restful访问istio的api
在kubernetes的apigroup中有以下个与istio有关，分别是

authentication.istio.io, config.istio.io, networking.istio.io

其中config.istio.io为最主要的，istio流量控制相关的

routerule, egressrule, destinationpolicie

策略执行相关的

memquota，quota，rule，QuotaSpec，QuotaSpecBinding

监控与日志配置相关的

metric, logentrie

http调用相关的

httpapispecbinding, tracespan, httpapispec

node =>namesapce => (环境) => 项目 => 应用=> deployment/pod/service(volume,probe,secret,configmap,env,image,label,selector,ports,tolent,taints,status,stragedy) => ingress/gateway 
rbac=>storageclass=>job=>statefulset=>


ctrl+space 提示快捷键


apiVersion: networking.istio.io/v1alpha3
http://192.168.11.51:1900/apis/networking.istio.io/v1alpha3/gateways


2、把其他例子一并搞完(deployment,patch,watch)

3、模仿sparrow例子(写个蓝绿，灰度，(AB的例子))

4、正式写案例



// 配置服务健康检查使用的
type HealthData struct {
	// 检查类型
	HealthType string
	// 检查端口
	HealthPort string
	// http访问路径
	HealthPath string
	// 服务启动预计时间
	HealthInitialDelay string
	// 检查间隔
	HealthInterval string
	// 失败阈值
	HealthFailureThreshold string
	// 检查超时
	HealthTimeout string
	// 通过命令检查
	HealthCmd string
}


jsontoyaml https://www.json2yaml.com/

1、先创建名称空间


问题 表单创建
标签和 service的标签对不上导致 一直503

# 序列化后的表单数据:{"project":"","environment":"dev","cluster":"k8s-cluster1","imageRepo":"myhub.mydocker.com","imageName":"",\
#     "imageTag":"","imagePullPolicy":"IfNotPresent","containerPort":"","replicas":"","cpu":"0.25","memory":"0.25","label_key1":"","label_value1":"",\
#     "label_key2":"","label_value2":"","probeType":"http","httpPort":"","healthPath":"","tcpPort":"8080","healthCmd":"ls /tmp","initialDelaySeconds":"30",\
#     "periodSeconds":"20","failureThreshold":"3","healthTimeout":"10","env":"","volumeMount":"","updateType":""}

1、创建集群 (集群名称,集群的配置文件config,云类型:私有云/公有云)
2、创建环境     
3、创建harbor,仓库
4、创建项目，创建命名空间，选择注入（可以删除）
5、创建应用
   集群 环境 所属项目 端口 容器镜像
6、应用灰度,回滚,


kubernetes.client.rest.ApiException: (409)
Reason: Conflict
HTTP response headers: HTTPHeaderDict({'Content-Type': 'application/json', 'Date': 'Tue, 30 Jun 2020 09:43:31 GMT', 'Content-Length': '202'})
HTTP response body: {"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"namespaces \"yw-dev\" already exists",\
					"reason":"AlreadyExists","details":{"name":"yw-dev","kind":"namespaces"},"code":40

status:409
reason:Conflict
body:{"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"namespaces \"yw-dev\" already exists","reason":"AlreadyExists","details":{"name":"yw-dev","kind":"namespaces"},"code":409}

class ApiException(Exception):

    def __init__(self, status=None, reason=None, http_resp=None):
        if http_resp:
            self.status = http_resp.status
            self.reason = http_resp.reason
            self.body = http_resp.data
            self.headers = http_resp.getheaders()
        else:
            self.status = status
            self.reason = reason
            self.body = None
            self.headers = None

# for k, v in kwargs.items():
#         print ('Optional argument %s (kwargs): %s' % (k, v))
# if claim_ref is not None:
#     self.claim_ref = claim_ref
# if flex_volume is not None:
#     self.flex_volume = flex_volume
# if glusterfs is not None:
#     self.glusterfs = glusterfs
# if host_path is not None:
#     self.host_path = host_path
# if local is not None:
#     self.local = local
# if mount_options is not None:
#     self.mount_options = mount_options
# if persistent_volume_reclaim_policy is not None:
#     self.persistent_volume_reclaim_policy = persistent_volume_reclaim_policy
# if rbd is not None:
#     self.rbd = rbd
# if storage_class_name is not None:
#     self.storage_class_name = storage_class_name
# if storageos is not None:
#     self.storageos = storageos
# if volume_mode is not None:
#     # self.volume_mode = volume_mode
跟命名空间无关:
api版本
node
namespaces
storageclass
pv

有关

deployment
pod
service
configmap
secret
job
cronjob
daemonset
stateful
pvc 
gateway
ingress
vs 
dr 


首页：


https://istio.io/latest/docs/concepts/traffic-management/

1、速率限制
2、负载均衡算法
3、熔断
	https://istio.io/latest/docs/reference/config/networking/destination-rule/
	# 熔断
	trafficPolicy:
		connectionPool:
		tcp:
			maxConnections: 1
		http:
			http1MaxPendingRequests: 1
			maxRequestsPerConnection: 1
		outlierDetection:
		# 开始拒绝连接的错误个数
		consecutiveErrors: 1
		interval: 1s
		baseEjectionTime: 3m
		maxEjectionPercent: 100
4、内外网
5、跨域（1 失败）
6、鉴权
7、请求超时
	timeout: 7s
8、路由(vs,dr,redirect)
9、流量镜像
10、链路跟踪


1、添加agent 定义node label
2、checkout的证书ID 换成m-s里面定义的  credentialsId: 'gitee_account',