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delay closing by 1 minute for deployment flip

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This commit is contained in:
Brian Gough 2021-03-22 11:15:59 +00:00
parent 17e3068499
commit 32184330d9
2 changed files with 7 additions and 1 deletions
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2
services/real-time/app.js
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@ -85,7 +85,7 @@ io.configure(function () {
// a 200 response on '/' is required for load balancer health checks
// these operate separately from kubernetes readiness checks
app.get('/', function (req, res) {
if (Settings.serviceIsClosed || Settings.shutDownInProgress) {
if (Settings.shutDownInProgress || DeploymentManager.deploymentIsClosed()) {
res.sendStatus(503) // Service unavailable
} else {
res.send('real-time is open')

6
services/real-time/app/js/DeploymentManager.js
View file

@ -9,10 +9,13 @@ const FILE_CHECK_INTERVAL = 5000
const statusFile = settings.deploymentFile
const deploymentColour = settings.deploymentColour
var serviceCloseTime
function updateDeploymentStatus(fileContent) {
const closed = fileContent && fileContent.indexOf(deploymentColour) === -1
if (closed && !settings.serviceIsClosed) {
settings.serviceIsClosed = true
serviceCloseTime = Date.now() + 60 * 1000 // delay closing by 1 minute
logger.warn({ fileContent }, 'closing service')
} else if (!closed && settings.serviceIsClosed) {
settings.serviceIsClosed = false
@ -49,5 +52,8 @@ module.exports = {
checkStatusFileSync() // perform an initial synchronous check at start up
setInterval(pollStatusFile, FILE_CHECK_INTERVAL) // continue checking periodically
}
},
deploymentIsClosed() {
return settings.serviceIsClosed && Date.now() > serviceCloseTime
}
}