mirror of
https://github.com/balena-os/balena-supervisor.git
synced 2024-12-19 05:37:53 +00:00
Implement several update strategies
* Break up the update function into manageable parts * Refactor the special variables into the RESIN_SUPERVISOR_ namespace * Use three update strategies: normal, kill before download, hand over TO-DO: implement waitToKill in the hand over case.
This commit is contained in:
Pablo Carranza Vélez
parent
f483f93211
commit
13dce75a21
@ -270,7 +270,9 @@ application.lockUpdates = lockUpdates = do ->
|
||||
.catch ENOENT, _.noop
|
||||
.catch (err) ->
|
||||
release()
|
||||
throw new Error("Updates are locked: #{err.message}")
|
||||
err = new Error("Updates are locked: #{err.message}")
|
||||
err.isLocked = true
|
||||
throw err
|
||||
.disposer (release) ->
|
||||
Promise.try ->
|
||||
lockFile.unlockAsync(lockName) if force != true
|
||||
@ -297,11 +299,13 @@ apiPollInterval = (val) ->
|
||||
application.poll()
|
||||
|
||||
specialActionEnvVars =
|
||||
'RESIN_OVERRIDE_LOCK': null
|
||||
'RESIN_VPN_CONTROL': utils.vpnControl
|
||||
'RESIN_CONNECTIVITY_CHECK': utils.connectivityCheck
|
||||
'RESIN_POLL_INTERVAL': apiPollInterval
|
||||
'RESIN_LOG_CONTROL': utils.resinLogControl
|
||||
'RESIN_SUPERVISOR_UPDATE_STRATEGY': null
|
||||
'RESIN_SUPERVISOR_HANDOVER_TIMEOUT': null
|
||||
'RESIN_SUPERVISOR_OVERRIDE_LOCK': null
|
||||
'RESIN_SUPERVISOR_VPN_CONTROL': utils.vpnControl
|
||||
'RESIN_SUPERVISOR_CONNECTIVITY_CHECK': utils.connectivityCheck
|
||||
'RESIN_SUPERVISOR_POLL_INTERVAL': apiPollInterval
|
||||
'RESIN_SUPERVISOR_LOG_CONTROL': utils.resinLogControl
|
||||
|
||||
executedSpecialActionEnvVars = {}
|
||||
|
||||
@ -322,6 +326,17 @@ wrapAsError = (err) ->
|
||||
return err if _.isError(err)
|
||||
return new Error(err.message ? err)
|
||||
|
||||
selectAndKill = (appId) ->
|
||||
knex('app').select().where({ appId })
|
||||
.then ([ app ]) ->
|
||||
if !app?
|
||||
throw new Error('App not found')
|
||||
kill(app)
|
||||
|
||||
waitToKill = (app, timeout) ->
|
||||
# TO-DO
|
||||
# Wait for app to signal it's ready to die, or timeout to complete (if it is defined and not-empty)
|
||||
|
||||
UPDATE_IDLE = 0
|
||||
UPDATE_UPDATING = 1
|
||||
UPDATE_REQUIRED = 2
|
||||
@ -332,6 +347,119 @@ updateStatus =
|
||||
forceNext: false
|
||||
intervalHandle: null
|
||||
|
||||
updateStrategies =
|
||||
'normal-update': (localApp, app, needsDownload, force, timeout) ->
|
||||
Promise.try ->
|
||||
fetch(app) if needsDownload
|
||||
.then ->
|
||||
Promise.using lockUpdates(localApp, force), ->
|
||||
logSystemEvent(logTypes.updateApp, app) if localApp.imageId == app.imageId
|
||||
selectAndKill(localApp.appId)
|
||||
.then ->
|
||||
start(app)
|
||||
.catch (err) ->
|
||||
logSystemEvent(logTypes.updateAppError, app, err) unless err.isLocked?
|
||||
throw err
|
||||
'kill-before-download': (localApp, app, needsDownload, force, timeout) ->
|
||||
logSystemEvent(logTypes.updateApp, app) if localApp.imageId == app.imageId
|
||||
Promise.using lockUpdates(localApp, force), ->
|
||||
selectAndKill(localApp.appId)
|
||||
.then ->
|
||||
fetch(app) if needsDownload
|
||||
.then ->
|
||||
start(app)
|
||||
.catch (err) ->
|
||||
logSystemEvent(logTypes.updateAppError, app, err) unless err.isLocked?
|
||||
throw err
|
||||
'hand-over': (localApp, app, needsDownload, force, timeout) ->
|
||||
Promise.using lockUpdates(localApp, force), ->
|
||||
Promise.try ->
|
||||
fetch(app) if needsDownload
|
||||
.then ->
|
||||
logSystemEvent(logTypes.updateApp, app) if localApp.imageId == app.imageId
|
||||
start(app)
|
||||
.then ->
|
||||
waitToKill(localApp, timeout)
|
||||
.then ->
|
||||
selectAndKill(localApp.appId)
|
||||
.catch (err) ->
|
||||
logSystemEvent(logTypes.updateAppError, app, err) unless err.isLocked?
|
||||
throw err
|
||||
|
||||
|
||||
updateUsingStrategy = (strategy, localApp, app, needsDownload, force, timeout) ->
|
||||
if strategy not in _.keys(updateStrategies)
|
||||
strategy = 'normal-update'
|
||||
updateStrategies[strategy](localApp, app, needsDownload, force, timeout)
|
||||
|
||||
getRemoteApps = (uuid, apiKey) ->
|
||||
cachedResinApi.get
|
||||
resource: 'application'
|
||||
options:
|
||||
select: [
|
||||
'id'
|
||||
'git_repository'
|
||||
'commit'
|
||||
]
|
||||
filter:
|
||||
commit: $ne: null
|
||||
device:
|
||||
uuid: uuid
|
||||
customOptions:
|
||||
apikey: apiKey
|
||||
|
||||
getEnvAndFormatRemoteApps = (deviceId, remoteApps, uuid, apiKey) ->
|
||||
Promise.map remoteApps, (app) ->
|
||||
getEnvironment(app.id, deviceId, apiKey)
|
||||
.then (environment) ->
|
||||
app.environment_variable = environment
|
||||
utils.extendEnvVars(app.environment_variable, uuid)
|
||||
.then (env) ->
|
||||
fullEnv = env
|
||||
env = _.omit(env, _.keys(specialActionEnvVars))
|
||||
return [
|
||||
{
|
||||
appId: app.id
|
||||
env: fullEnv
|
||||
},
|
||||
{
|
||||
appId: '' + app.id
|
||||
commit: app.commit
|
||||
imageId: "#{config.registryEndpoint}/#{path.basename(app.git_repository, '.git')}/#{app.commit}"
|
||||
env: JSON.stringify(env) # The env has to be stored as a JSON string for knex
|
||||
}
|
||||
]
|
||||
.then(_.zip)
|
||||
.then ([ remoteAppEnvs, remoteApps ]) ->
|
||||
return [_.mapValues(_.indexBy(remoteAppEnvs, 'appId'), 'env'), _.indexBy(remoteApps, 'appId')]
|
||||
|
||||
formatLocalApps = (apps) ->
|
||||
apps = _.indexBy(apps, 'appId')
|
||||
localAppEnvs = {}
|
||||
localApps = _.mapValues apps, (app) ->
|
||||
localAppEnvs[app.appId] = JSON.parse(app.env)
|
||||
app.env = JSON.stringify(_.omit(localAppEnvs[app.appId], _.keys(specialActionEnvVars)))
|
||||
app = _.pick(app, [ 'appId', 'commit', 'imageId', 'env' ])
|
||||
return { localApps, localAppEnvs }
|
||||
|
||||
compareForUpdate = (localApps, remoteApps, localAppEnvs, remoteAppEnvs) ->
|
||||
remoteAppIds = _.keys(remoteApps)
|
||||
localAppIds = _.keys(localApps)
|
||||
appsWithChangedEnvs = _.filter remoteAppIds, (appId) ->
|
||||
return !localAppEnvs[appId]? or !_.isEqual(remoteAppEnvs[appId], localAppEnvs[appId])
|
||||
toBeRemoved = _.difference(localAppIds, remoteAppIds)
|
||||
toBeInstalled = _.difference(remoteAppIds, localAppIds)
|
||||
|
||||
toBeUpdated = _.intersection(remoteAppIds, localAppIds)
|
||||
toBeUpdated = _.filter toBeUpdated, (appId) ->
|
||||
return !_.isEqual(remoteApps[appId], localApps[appId])
|
||||
|
||||
toBeDownloaded = _.filter toBeUpdated, (appId) ->
|
||||
return !_.isEqual(remoteApps[appId].imageId, localApps[appId].imageId)
|
||||
toBeDownloaded = _.union(toBeDownloaded, toBeInstalled)
|
||||
allAppIds = _.union(localAppIds, remoteAppIds)
|
||||
return { toBeRemoved, toBeDownloaded, toBeInstalled, toBeUpdated, appsWithChangedEnvs, allAppIds }
|
||||
|
||||
application.update = update = (force) ->
|
||||
if updateStatus.state isnt UPDATE_IDLE
|
||||
# Mark an update required after the current.
|
||||
@ -350,64 +478,13 @@ application.update = update = (force) ->
|
||||
uuid = uuid.value
|
||||
|
||||
deviceId = device.getID()
|
||||
remoteApps = getRemoteApps(uuid, apiKey)
|
||||
|
||||
remoteApps = cachedResinApi.get
|
||||
resource: 'application'
|
||||
options:
|
||||
select: [
|
||||
'id'
|
||||
'git_repository'
|
||||
'commit'
|
||||
]
|
||||
filter:
|
||||
commit: $ne: null
|
||||
device:
|
||||
uuid: uuid
|
||||
customOptions:
|
||||
apikey: apiKey
|
||||
|
||||
remoteAppEnvs = {}
|
||||
Promise.join deviceId, remoteApps, (deviceId, remoteApps) ->
|
||||
return Promise.map remoteApps, (app) ->
|
||||
getEnvironment(app.id, deviceId, apiKey)
|
||||
.then (environment) ->
|
||||
app.environment_variable = environment
|
||||
utils.extendEnvVars(app.environment_variable, uuid)
|
||||
.then (env) ->
|
||||
remoteAppEnvs[app.id] = env
|
||||
env = _.omit(env, _.keys(specialActionEnvVars))
|
||||
return {
|
||||
appId: '' + app.id
|
||||
commit: app.commit
|
||||
imageId: "#{config.registryEndpoint}/#{path.basename(app.git_repository, '.git')}/#{app.commit}"
|
||||
env: JSON.stringify(env) # The env has to be stored as a JSON string for knex
|
||||
}
|
||||
.then (remoteApps) ->
|
||||
remoteApps = _.indexBy(remoteApps, 'appId')
|
||||
remoteAppIds = _.keys(remoteApps)
|
||||
|
||||
apps = _.indexBy(apps, 'appId')
|
||||
localAppEnvs = {}
|
||||
localApps = _.mapValues apps, (app) ->
|
||||
localAppEnvs[app.appId] = JSON.parse(app.env)
|
||||
app.env = JSON.stringify(_.omit(localAppEnvs[app.appId], _.keys(specialActionEnvVars)))
|
||||
app = _.pick(app, [ 'appId', 'commit', 'imageId', 'env' ])
|
||||
localAppIds = _.keys(localApps)
|
||||
appsWithChangedEnvs = _.filter remoteAppIds, (appId) ->
|
||||
return !localAppEnvs[appId]? or !_.isEqual(remoteAppEnvs[appId], localAppEnvs[appId])
|
||||
|
||||
toBeRemoved = _.difference(localAppIds, remoteAppIds)
|
||||
toBeInstalled = _.difference(remoteAppIds, localAppIds)
|
||||
|
||||
toBeUpdated = _.intersection(remoteAppIds, localAppIds)
|
||||
toBeUpdated = _.filter toBeUpdated, (appId) ->
|
||||
return !_.isEqual(remoteApps[appId], localApps[appId])
|
||||
|
||||
toBeDownloaded = _.filter toBeUpdated, (appId) ->
|
||||
return !_.isEqual(remoteApps[appId].imageId, localApps[appId].imageId)
|
||||
toBeDownloaded = _.union(toBeDownloaded, toBeInstalled)
|
||||
|
||||
allAppIds = _.union(localAppIds, remoteAppIds)
|
||||
Promise.join deviceId, remoteApps, uuid, apiKey, getEnvAndFormatRemoteApps
|
||||
.then ([ remoteAppEnvs, remoteApps ]) ->
|
||||
{ localApps, localAppEnvs } = formatLocalApps(apps)
|
||||
resourcesForUpdate = compareForUpdate(localApps, remoteApps, localAppEnvs, remoteAppEnvs)
|
||||
{ toBeRemoved, toBeDownloaded, toBeInstalled, toBeUpdated, appsWithChangedEnvs, allAppIds } = resourcesForUpdate
|
||||
|
||||
# Run special functions against variables if remoteAppEnvs has the corresponding variable function mapping.
|
||||
Promise.map appsWithChangedEnvs, (appId) ->
|
||||
@ -428,17 +505,12 @@ application.update = update = (force) ->
|
||||
.return(allAppIds)
|
||||
.map (appId) ->
|
||||
Promise.try ->
|
||||
fetch(remoteApps[appId]) if _.includes(toBeDownloaded, appId)
|
||||
.then ->
|
||||
needsDownload = _.includes(toBeDownloaded, appId)
|
||||
if _.includes(toBeRemoved, appId)
|
||||
Promise.using lockUpdates(apps[appId], force), ->
|
||||
# We get the app from the DB again in case someone restarted it
|
||||
# (which would have changed its containerId)
|
||||
knex('app').select().where({ appId })
|
||||
.then ([ app ]) ->
|
||||
if !app?
|
||||
throw new Error('App not found')
|
||||
kill(app)
|
||||
selectAndKill(appId)
|
||||
.then ->
|
||||
knex('app').where('appId', appId).delete()
|
||||
.catch (err) ->
|
||||
@ -448,25 +520,18 @@ application.update = update = (force) ->
|
||||
app = remoteApps[appId]
|
||||
# Restore the complete environment so that it's persisted in the DB
|
||||
app.env = JSON.stringify(remoteAppEnvs[appId])
|
||||
start(app)
|
||||
Promise.try ->
|
||||
fetch(remoteApps[appId]) if needsDownload
|
||||
.then ->
|
||||
start(app)
|
||||
else if _.includes(toBeUpdated, appId)
|
||||
localApp = apps[appId]
|
||||
app = remoteApps[appId]
|
||||
# Restore the complete environment so that it's persisted in the DB
|
||||
app.env = JSON.stringify(remoteAppEnvs[appId])
|
||||
logSystemEvent(logTypes.updateApp, app) if localApp.imageId == app.imageId
|
||||
forceThisApp = remoteAppEnvs[appId]['RESIN_OVERRIDE_LOCK'] == '1'
|
||||
Promise.using lockUpdates(localApp, force || forceThisApp), ->
|
||||
knex('app').select().where({ appId })
|
||||
.then ([ localApp ]) ->
|
||||
if !localApp?
|
||||
throw new Error('App not found')
|
||||
kill(localApp)
|
||||
.then ->
|
||||
start(app)
|
||||
.catch (err) ->
|
||||
logSystemEvent(logTypes.updateAppError, app, err)
|
||||
throw err
|
||||
forceThisApp = remoteAppEnvs[appId]['RESIN_SUPERVISOR_OVERRIDE_LOCK'] == '1'
|
||||
strategy = remoteAppEnvs[appId]['RESIN_SUPERVISOR_UPDATE_STRATEGY']
|
||||
timeout = remoteAppEnvs[appId]['RESIN_SUPERVISOR_HANDOVER_TIMEOUT']
|
||||
updateUsingStrategy(strategy, apps[appId], app, needsDownload, force || forceThisApp, timeout)
|
||||
.catch(wrapAsError)
|
||||
.filter(_.isError)
|
||||
.then (failures) ->
|
||||
|
||||
Loading…
Reference in New Issue
Block a user