《孤島驚魂6》和《孤島驚魂3》早期畫面對比視訊
阿新 • • 發佈:2021-06-13
1、生成 servie.yaml
1.1、yaml轉json
service模板yaml
apiVersion: v1
kind: Service
metadata:
name: ${jarName}
labels:
name: ${jarName}
version: v1
spec:
ports:
- port: ${port}
targetPort: ${port}
selector:
name: ${jarName}
轉成json的結構
{ "apiVersion": "v1", "kind": "Service", "metadata": { "name": "${jarName}", "labels": { "name": "${jarName}", "version": "v1" } }, "spec": { "ports": [ { "port": "${port}", "targetPort": "${port}" } ], "selector": { "name": "${jarName}" } } }
1.2、關鍵程式碼
# 通過傳入service_name及ports列表 def create_service_yaml(service_name, ports): # 將yaml讀取為json,然後修改所有需要修改的${jarName} service_data['metadata']['name'] = service_name service_data['metadata']['labels']['name'] = service_name service_data['spec']['selector']['name'] = service_name # .spec.ports 比較特殊,是一個字典列表,由於傳入的ports難以確定數量,難以直接修改 # 新建一個列表,遍歷傳入的ports列表,將傳入的每個port都生成為一個字典,新增入新列表中 new_spec_ports = [] for port in ports: port = int(port) new_port = {'port': port, 'targetPort': port} new_spec_ports.append(new_port) # 修改.spec.ports為新列表 service_data['spec']['ports'] = new_spec_ports
2、生成 deployment.yaml
2.1、yaml轉json
deployment模板yaml
apiVersion: apps/v1 kind: Deployment metadata: name: ${jarName} labels: name: ${jarName} spec: selector: matchLabels: name: ${jarName} replicas: 1 template: metadata: labels: name: ${jarName} spec: containers: - name: ${jarName} image: reg.test.local/library/${jarName}:${tag} imagePullSecrets: - name: registry-secret
轉成的json結構
{
"apiVersion": "apps/v1",
"kind": "Deployment",
"metadata": {
"name": "${jarName}",
"labels": {
"name": "${jarName}"
}
},
"spec": {
"selector": {
"matchLabels": {
"name": "${jarName}"
}
},
"replicas": 1,
"template": {
"metadata": {
"labels": {
"name": "${jarName}"
}
},
"spec": {
"containers": [
{
"name": "${jarName}",
"image": "reg.test.local/library/${jarName}:${tag}"
}
],
"imagePullSecrets": [
{
"name": "registry-secret"
}
]
}
}
}
}
2.2、關鍵程式碼
# 傳入service_name及image tag
def create_deploy_yaml(service_name, tag):
# 首先修改所有的${jarName}
deploy_data['metadata']['name'] = service_name
deploy_data['metadata']['labels']['name'] = service_name
deploy_data['spec']['selector']['matchLabels']['name'] = service_name
deploy_data['spec']['template']['metadata']['labels']['name'] = service_name
# 由於.spec.template.spec.containers的特殊性,我們採用直接修改的方式
# 首先拼接image欄位
image = "reg.test.local/library/" + service_name + ":" + tag
# 建立new_containers字典列表
new_containers = [{'name': service_name, 'image': image}]
deploy_data['spec']['template']['spec']['containers'] = new_containers
3、完整指令碼
#!/usr/bin/python
# encoding: utf-8
"""
The Script for Auto Create Deployment Yaml.
File: auto_create_deploy_yaml
User: miaocunfa
Create Date: 2020-06-10
Create Time: 17:06
"""
import os
from ruamel.yaml import YAML
yaml = YAML()
def create_service_yaml(service_name, ports):
service_mould_file = "mould/info-service-mould.yaml"
isServiceMould = os.path.isfile(service_mould_file)
if isServiceMould:
# read Service-mould yaml convert json
with open(service_mould_file, encoding='utf-8') as yaml_obj:
service_data = yaml.load(yaml_obj)
# Update jarName
service_data['metadata']['name'] = service_name
service_data['metadata']['labels']['name'] = service_name
service_data['spec']['selector']['name'] = service_name
# Update port
new_spec_ports = []
for port in ports:
port = int(port)
portname = 'port' + str(port)
new_port = {'name': portname, 'port': port, 'targetPort': port}
new_spec_ports.append(new_port)
service_data['spec']['ports'] = new_spec_ports
# json To service yaml
save_file = tag + '/' + service_name + '_svc.yaml'
with open(save_file, mode='w', encoding='utf-8') as yaml_obj:
yaml.dump(service_data, yaml_obj)
print(save_file + ": Success!")
else:
print("Service Mould File is Not Exist!")
def create_deploy_yaml(service_name, tag):
deploy_mould_file = "mould/info-deploy-mould.yaml"
isDeployMould = os.path.isfile(deploy_mould_file)
if isDeployMould:
with open(deploy_mould_file, encoding='utf-8') as yaml_obj:
deploy_data = yaml.load(yaml_obj)
# Update jarName
deploy_data['metadata']['name'] = service_name
deploy_data['metadata']['labels']['name'] = service_name
deploy_data['spec']['selector']['matchLabels']['name'] = service_name
deploy_data['spec']['template']['metadata']['labels']['name'] = service_name
# Update containers
image = "reg.test.local/library/" + service_name + ":" + tag
new_containers = [{'name': service_name, 'image': image}]
deploy_data['spec']['template']['spec']['containers'] = new_containers
# json To service yaml
save_file = tag + '/' + service_name + '_deploy.yaml'
with open(save_file, mode='w', encoding='utf-8') as yaml_obj:
yaml.dump(deploy_data, yaml_obj)
print(save_file + ": Success!")
else:
print("Deploy Mould File is Not Exist!")
services = {
'info-gateway': ['9999'],
'info-admin': ['7777'],
'info-config': ['8888'],
'info-message-service': ['8555', '9666'],
'info-auth-service': ['8666'],
'info-scheduler-service': ['8777'],
'info-uc-service': ['8800'],
'info-ad-service': ['8801'],
'info-community-service': ['8802'],
'info-groupon-service': ['8803'],
'info-hotel-service': ['8804'],
'info-nearby-service': ['8805'],
'info-news-service': ['8806'],
'info-store-service': ['8807'],
'info-payment-service': ['8808'],
'info-agent-service': ['8809'],
'info-consumer-service': ['8090'],
}
prompt = "\n請輸入要生成的tag: "
answer = input(prompt)
print("")
if os.path.isdir(answer):
raise SystemExit(answer + ': is Already exists!')
else:
tag = answer
os.makedirs(tag)
for service_name, service_ports in services.items():
create_service_yaml(service_name, service_ports)
create_deploy_yaml(service_name, tag)
4、執行效果
➜ python3 Auto_Create_K8S_YAML.py
請輸入要生成的tag: 0.0.1
0.0.1/info-gateway_svc.yaml: Success!
0.0.1/info-gateway_deploy.yaml: Success!
0.0.1/info-admin_svc.yaml: Success!
0.0.1/info-admin_deploy.yaml: Success!
0.0.1/info-config_svc.yaml: Success!
0.0.1/info-config_deploy.yaml: Success!
0.0.1/info-message-service_svc.yaml: Success!
0.0.1/info-message-service_deploy.yaml: Success!
0.0.1/info-auth-service_svc.yaml: Success!
0.0.1/info-auth-service_deploy.yaml: Success!
0.0.1/info-scheduler-service_svc.yaml: Success!
0.0.1/info-scheduler-service_deploy.yaml: Success!
0.0.1/info-uc-service_svc.yaml: Success!
0.0.1/info-uc-service_deploy.yaml: Success!
0.0.1/info-ad-service_svc.yaml: Success!
0.0.1/info-ad-service_deploy.yaml: Success!
0.0.1/info-community-service_svc.yaml: Success!
0.0.1/info-community-service_deploy.yaml: Success!
0.0.1/info-groupon-service_svc.yaml: Success!
0.0.1/info-groupon-service_deploy.yaml: Success!
0.0.1/info-hotel-service_svc.yaml: Success!
0.0.1/info-hotel-service_deploy.yaml: Success!
0.0.1/info-nearby-service_svc.yaml: Success!
0.0.1/info-nearby-service_deploy.yaml: Success!
0.0.1/info-news-service_svc.yaml: Success!
0.0.1/info-news-service_deploy.yaml: Success!
0.0.1/info-store-service_svc.yaml: Success!
0.0.1/info-store-service_deploy.yaml: Success!
0.0.1/info-payment-service_svc.yaml: Success!
0.0.1/info-payment-service_deploy.yaml: Success!
0.0.1/info-agent-service_svc.yaml: Success!
0.0.1/info-agent-service_deploy.yaml: Success!
0.0.1/info-consumer-service_svc.yaml: Success!
0.0.1/info-consumer-service_deploy.yaml: Success!
➜ ll
total 12
drwxr-xr-x. 2 root root 4096 Jun 29 18:24 0.0.1
# 生成的 service yaml
➜ cat info-message-service_svc.yaml
apiVersion: v1
kind: Service
metadata:
name: info-message-service
labels:
name: info-message-service
version: v1
spec:
ports:
- name: port8555
port: 8555
targetPort: 8555
- name: port9666
port: 9666
targetPort: 9666
selector:
name: info-message-service
# 生成的 deployment yaml
➜ cat info-message-service_deploy.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: info-message-service
labels:
name: info-message-service
spec:
selector:
matchLabels:
name: info-message-service
replicas: 2
template:
metadata:
labels:
name: info-message-service
spec:
containers:
- name: info-message-service
image: reg.test.local/library/info-message-service:0.0.1
imagePullSecrets:
- name: registry-secret
到此這篇關於使用python指令碼自動生成K8S-YAML的方法示例的文章就介紹到這了,更多相關python自動生成K8S-YAML內容請搜尋指令碼之家以前的文章或繼續瀏覽下面的相關文章希望大家以後多多支援指令碼之家!