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Django_kube/django_code/cloudmanager/db_interaction.py
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pierre geeraert 4dee3442b0
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actually easy fix
2026-03-25 22:54:55 +00:00

138 lines
5.1 KiB
Python

import psycopg2
from django.http import HttpResponse
from kubernetes_connection import apps as kubernetes_connection
import datetime
from cloudmanager import credentials
def hello(request):
kubernetes_connection.echoHello();
return HttpResponse('<h1>Hello cmm !</h1>')
def DB_generation(host_in,port_in,user_in,password_in,db_in):
db = psycopg2.connect(host=host_in, port=port_in, user=user_in, password=password_in,database=db_in)
return db
def Launch_sql_query(sql,db):
# prepare a cursor object using cursor() method
cursor = db.cursor()
try:
# Execute the SQL command
cursor.execute(sql)
# Fetch all the rows in a list of lists.
results = cursor.fetchall()
result_machine = []
#result_machine_type = []
for row in results:
result_machine_type = []
namespace = row[0]
name = row[1]
replicas = row[2]
result_machine_type.append(namespace)
result_machine_type.append(name)
result_machine_type.append(replicas)
result_machine.append(result_machine_type)
return result_machine
except:
print ("Error: unable to fetch data")
#Return the day of the week as an integer, where Monday is 0 and Sunday is 6.
def Give_current_weekday():
weekday = datetime.datetime.today().weekday()
return weekday
def Give_current_hour():
now = datetime.datetime.now()
return now.hour
def Check_server_supposed_XXX(generated_db_in,wanted_status,Wanted_hour):
sql_in=""
if wanted_status == "up" or wanted_status == "start":
sql_in = "select machine.namespace, machine.name, machine.replicas from scenario_hour,machine where state_at_" + str(Wanted_hour) + "='1' and machine.hour_behaviour_id=scenario_hour.id_scenario;"
elif wanted_status == "down" or wanted_status == "stop":
sql_in = "select machine.namespace, machine.name, machine.replicas from scenario_hour,machine where state_at_" + str(Wanted_hour) + "='0' and machine.hour_behaviour_id=scenario_hour.id_scenario;"
else:
print("error value")
return_value = Launch_sql_query(sql_in, generated_db_in)
return return_value
def Is_the_server_already_wanted_state(id_machine, wanted_state,instance_type):
#stopped/running
bool_result = ""
proxmox = function.proxmox_connection(credentials.proxmox.zeus.url_proxmox,credentials.proxmox.zeus.user,credentials.proxmox.zeus.password)
if str(function.check_state_mix(id_machine,wanted_state,proxmox,instance_type)) == str(wanted_state):
bool_result = True
else:
bool_result = False
return bool_result
def all_operations(request,wanted_state,list_machine):
info_to_display = ""
if wanted_state == "running":
operation_to_perform = "start"
elif wanted_state == "stopped":
operation_to_perform = "stop"
else:
print("Incorrect wanted state")
for machine_target in list_machine:
print(machine_target[1])
kubernetes_connection.scale_up(request,namespace_name=machine_target[0],deploy_name=machine_target[1],replicas=machine_target[2]);
# if not(Is_the_server_already_wanted_state(machine_target[0], wanted_state,machine_target[1])):
# function.action(False,machine_target[0],operation_to_perform,machine_target[1])
# print(str(machine_target[0])+" is now "+str(wanted_state))
# elif Is_the_server_already_wanted_state(machine_target[0], wanted_state,machine_target[1]):
# info_to_display = "operation already performed for "+machine_target[2]
# print(info_to_display)
#return info_to_display
return ""
def main(request):
generated_db = DB_generation(credentials.sql.url, credentials.sql.port, credentials.sql.user, credentials.sql.password,credentials.sql.database)
##operation:
kubernetes_connection.hello(request);
## Server(s) supposed to be UP
#Check_server_supposed_XXX(generated_db, "up", Give_current_hour())
list_servers_up = Check_server_supposed_XXX(generated_db, "up", Give_current_hour())
print("------------------------------------------")
print("-----------------UP-----------------------")
print("------------------------------------------")
print(list_servers_up)
print(all_operations(request,"running", list_servers_up))
#
#
# ## Server(s) supposed to be DOWN
# list_servers_down = Check_server_supposed_XXX(generated_db, "down", Give_current_hour())
#
# print("------------------------------------------")
# print("----------------DOWN----------------------")
# print("------------------------------------------")
# print(list_servers_down)
# print(all_operations("stopped",list_servers_down))
#
#
# # disconnect from server
generated_db.close()
#print(Is_the_server_already_wanted_state(112, "stopped"))
HttpResponse('<h1>CMM executed!</h1>')
if __name__ == "__main__":
main()
"""
TO DO:
EXTRACT TYPE OF MACHINE
CREATE FUNCTION TO CHECK IF A MACHINE IS ALREADY DOWN OR NOT
ADD FIELD IN SQL WITH PROJECT AND PUT DESCRIPTION -> ATTACH MACHINE TO PROJECT
"""