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config_map.py
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config_map.py
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# -*- coding: utf-8 -*-
import os
import sys
from yaml import load, Loader
import string
import json
from mako.template import Template
PREFIX = 'ENV'
config_map_literal = """apiVersion: v1
kind: ConfigMap
metadata:
namespace: {}
name: {}
data:
"""
rbac_literal = """apiVersion: v1
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
name: {}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: admin
subjects:
- kind: ServiceAccount
name: default
namespace: {}
"""
ingress_literal = string.Template("""{{- if .Values.service.enabled -}}
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: $name
labels:
app: {{ template "appname" . }}
chart: "{{ .Chart.Name }}-{{ .Chart.Version| replace "+" "_" }}"
release: {{ .Release.Name }}
heritage: {{ .Release.Service }}
annotations:
kubernetes.io/tls-acme: "true"
kubernetes.io/ingress.class: "traefik"
spec:
rules:
- host: $host
http:
paths:
- path: /
backend:
serviceName: {{ template "fullname" . }}
servicePort: {{ .Values.service.externalPort }}
{{- end -}}
""")
default_branch_dic = { "develop" : "DEV", "test" : "TEST", "master": "RELEASE", "staging": "STAGING" }
def extend_branch_dic():
if "BRANCH_DIC" in os.environ:
brach_dic = json.loads(os.environ['BRANCH_DIC'])
default_branch_dic.update(brach_dic)
print(default_branch_dic)
def branch_filter(second_prefix):
def inner_filter(env):
words = env.split('_')
if len(words) > 2 and words[0] == PREFIX and words[1] == second_prefix:
return True
return False
return inner_filter
def trim_prefix(env):
words = env.split('_')
return '_'.join(words[2:])
def gen_env_config(p):
os_env_keys = os.environ.keys()
env_branch_keys = filter(branch_filter(p), os_env_keys)
app_env_keys = list(env_branch_keys)
new_config_env = {trim_prefix(env_key): os.environ[env_key] for env_key in app_env_keys}
return new_config_env
def gen_configmap():
current_branch = os.environ['CI_COMMIT_REF_NAME']
branch_content = current_branch.split('/').pop()
if default_branch_dic.__contains__(branch_content):
second_prefixs = default_branch_dic[branch_content]
config_env = {}
# 设置通用环境变量
common_prefix = 'COMMON'
common_config_env = gen_env_config(common_prefix)
config_env = {**config_env, **common_config_env}
if default_branch_dic.__contains__(branch_content):
# 设置分支环境变量
for p in second_prefixs.split(','):
new_config_env = gen_env_config(p.strip())
config_env = {**config_env, **new_config_env}
fv = open("chart/values.yaml", 'r', encoding='utf8')
values_yaml = fv.read()
values_dic = load(values_yaml, Loader=Loader)
if "env" in values_dic:
config_env = {**values_dic["env"], **config_env}
fv.close()
global config_map_literal
config_map_literal = config_map_literal.format(os.environ['KUBE_NAMESPACE'], os.environ['CONFIG_MAP_NAME'])
for config_key, config_value in config_env.items():
config_map_literal += ' {}: {}\n'.format(config_key, config_value)
config_map_template = Template(config_map_literal)
config_map_result = config_map_template.render(**os.environ)
print(config_map_result)
fo = open("configmap.yaml", "w")
fo.write(config_map_result)
fo.close()
def gen_rbac():
global rbac_literal
rbac_literal = rbac_literal.format(os.environ['KUBE_NAMESPACE'], os.environ['KUBE_NAMESPACE'])
forbac = open("rbac.yaml", "w")
forbac.write(rbac_literal)
forbac.close()
def gen_ingress():
if "URL_PRIFIX" in os.environ:
print(os.environ['URL_PRIFIX'])
prifix = os.environ['URL_PRIFIX'].split(',')
current_branch = os.environ['CI_COMMIT_REF_NAME'].lower()
for i in range(len(prifix)):
pure_prifix = prifix[i].replace("'", '').replace('"', '')
name = '{}-{}'.format(sys.argv[1], i)
host = '{}-{}'.format(pure_prifix, sys.argv[2])
if current_branch == 'master':
host = pure_prifix + '.' + os.environ['AUTO_DEVOPS_DOMAIN']
global ingress_literal
blank_str = ingress_literal
blank_str = blank_str.substitute(vars())
print(blank_str)
ingress_path = 'chart/templates/ingress{}.yaml'.format(i)
fo_ingress = open(ingress_path, "w")
fo_ingress.write(blank_str)
fo_ingress.close()
if __name__ == "__main__":
extend_branch_dic()
gen_configmap()
gen_rbac()
gen_ingress()