def updateApp():
"""
Flask endpoint for updating an application on Marathon.
Update the job running the given application(s) on Marathon. POST body:
{
"appOne": {
"cpus": 0.3,
"mem": 16,
"instances": 3
},
"appTwo": {
"cpus": 0.2,
"mem": 512,
"instances": 3
}
}
NOTE: The full [Marathon API](https://mesosphere.github.io/marathon/docs/rest-api.html#put-/v2/apps/%7Bappid%7D)
allows more parameters to be changed, but we limit them for this API.
"""
newConfig = json.loads(request.data)
logger.info('Method called with: {0}'.format(newConfig))
system = ServiceOrchestrator(CONFIG_FILE)
ok = system.updateApps(newConfig)
return 'ok'
def startServer(configFile):
"""
Start the Flask server using some environment varils -al etc ables.
"""
setupServer()
port = os.environ.get('PORT', 3030)
system = ServiceOrchestrator(configFile)
#system = ServiceOrchestrator(CONFIG_FILE)
system.startHaproxy()
app.run(host='0.0.0.0', port=port)
def marathon():
"""
Endpoint:
http://[host]:[port]/marathon
Takes an HTTP POST from Marathon, and if it is a *status_update_event*
message, we will rewrite the HAProxy configuration and restart HAProxy.
"""
logger.info("Marathon Event received...")
updateEvt = json.loads(request.data)
if updateEvt.get('eventType') != 'status_update_event':
return 'not status_update_event'
print 'IP ADDRESS:', request.remote_addr
system = ServiceOrchestrator(CONFIG_FILE)
ok = system.reloadHAProxy(request.remote_addr, updateEvt)
return str(ok)
def refreshConfig ():
system = ServiceOrchestrator("conf.json")
tmpConfig = os.path.join(SKYLR_HOME, 'haproxy.cfg')
with open(tmpConfig, "w") as output:
output.write(system.gen ())
subprocess.call("sudo cp {0} {1}".format(tmpConfig, CONFIG_DESTINATION).split(" "))
