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Simplify the update logic by making fetch and kill (the only long-running actions) happen in the background, and always waiting for all actions before continuing

Browse Source 
Signed-off-by: Pablo Carranza Velez <pablo@resin.io>
This commit is contained in:
Pablo Carranza Velez 2018-01-26 17:29:19 -08:00
parent c0ac2c21a4
commit 3fd52bb0c7
6 changed files with 175 additions and 179 deletions
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91
src/application-manager.coffee
View File

@ -227,7 +227,7 @@ class ApplicationManagerRouter
errMsg = 'Service not found, a container must exist for service stop to work.'
return res.status(404).send(errMsg)
@applications.setTargetVolatileForService(service.imageId, running: false)
@applications.executeStepAction(serviceAction('stop', service.serviceId, service, service), { skipLock: true })
@applications.executeStepAction(serviceAction('stop', service.serviceId, service, service, { wait: true }), { skipLock: true })
.then ->
res.status(200).send('OK')
.catch (err) ->
@ -280,7 +280,8 @@ module.exports = class ApplicationManager extends EventEmitter
@actionExecutors = {
stop: (step, { force = false, skipLock = false } = {}) =>
@_lockingIfNecessary step.current.appId, { force, skipLock: skipLock or step.options?.skipLock }, =>
@services.kill(step.current, { removeContainer: false })
wait = step.options?.wait ? false
@services.kill(step.current, { removeContainer: false, wait })
kill: (step, { force = false, skipLock = false } = {}) =>
@_lockingIfNecessary step.current.appId, { force, skipLock: skipLock or step.options?.skipLock }, =>
@services.kill(step.current)
@ -292,7 +293,7 @@ module.exports = class ApplicationManager extends EventEmitter
restart: (step, { force = false, skipLock = false } = {}) =>
@_lockingIfNecessary step.current.appId, { force, skipLock: skipLock or step.options?.skipLock }, =>
Promise.try =>
@services.kill(step.current)
@services.kill(step.current, { wait: true })
.then =>
@services.start(step.target)
stopAll: (step, { force = false, skipLock = false } = {}) =>
@ -310,12 +311,12 @@ module.exports = class ApplicationManager extends EventEmitter
@images.getAvailable()
(opts, availableImages) =>
opts.deltaSource = @bestDeltaSource(step.image, availableImages)
@images.fetch(step.image, opts)
@images.triggerFetch step.image, opts, (success) =>
@fetchesInProgress -= 1
@timeSpentFetching += process.hrtime(startTime)[0]
if success
@reportCurrentState(update_downloaded: true)
)
.finally =>
@fetchesInProgress -= 1
@timeSpentFetching += process.hrtime(startTime)[0]
@reportCurrentState(update_downloaded: true)
removeImage: (step) =>
@images.remove(step.image)
saveImage: (step) =>
@ -576,23 +577,20 @@ module.exports = class ApplicationManager extends EventEmitter
# TODO: account for volumes-from, networks-from, links, etc
# TODO: support networks instead of only networkMode
_dependenciesMetForServiceStart: (target, networkPairs, volumePairs, pendingPairs, stepsInProgress) ->
_dependenciesMetForServiceStart: (target, networkPairs, volumePairs, pendingPairs) ->
# for dependsOn, check no install or update pairs have that service
dependencyUnmet = _.some target.dependsOn ? [], (dependency) ->
_.find(pendingPairs, (pair) -> pair.target?.serviceName == dependency)? or _.find(stepsInProgress, (step) -> step.target?.serviceName == dependency)?
_.find(pendingPairs, (pair) -> pair.target?.serviceName == dependency)?
if dependencyUnmet
return false
# for networks and volumes, check no network pairs have that volume name
if _.find(networkPairs, (pair) -> "#{target.appId}_#{pair.target?.name}" == target.networkMode)?
return false
if _.find(stepsInProgress, (step) -> step.model == 'network' and "#{target.appId}_#{step.target?.name}" == target.networkMode)?
return false
volumeUnmet = _.some target.volumes, (volumeDefinition) ->
[ sourceName, destName ] = volumeDefinition.split(':')
if !destName? # If this is not a named volume, ignore it
return false
return _.find(volumePairs, (pair) -> "#{target.appId}_#{pair.target?.name}" == sourceName)? or
_.find(stepsInProgress, (step) -> step.model == 'volume' and "#{target.appId}_#{step.target?.name}" == sourceName)?
return _.find(volumePairs, (pair) -> "#{target.appId}_#{pair.target?.name}" == sourceName)?
return !volumeUnmet
# Unless the update strategy requires an early kill (i.e. kill-then-download, delete-then-download), we only want
@ -606,7 +604,7 @@ module.exports = class ApplicationManager extends EventEmitter
return false
return true
_nextStepsForNetworkOrVolume: ({ current, target }, currentApp, changingPairs, dependencyComparisonFn, model, stepsInProgress) ->
_nextStepsForNetworkOrVolume: ({ current, target }, currentApp, changingPairs, dependencyComparisonFn, model) ->
# Check none of the currentApp.services use this network or volume
if current?
dependencies = _.filter currentApp.services, (service) ->
@ -618,24 +616,24 @@ module.exports = class ApplicationManager extends EventEmitter
# we have to kill them before removing the network/volume (e.g. when we're only updating the network config)
steps = []
for dependency in dependencies
if !_.some(changingPairs, (pair) -> pair.serviceId == dependency.serviceId) and !_.find(stepsInProgress, (step) -> step.serviceId == dependency.serviceId)?
if dependency.status != 'Stopping' and !_.some(changingPairs, (pair) -> pair.serviceId == dependency.serviceId)
steps.push(serviceAction('kill', dependency.serviceId, dependency))
return steps
else if target?
return [{ action: 'createNetworkOrVolume', model, target }]
_nextStepsForNetwork: ({ current, target }, currentApp, changingPairs, stepsInProgress) =>
_nextStepsForNetwork: ({ current, target }, currentApp, changingPairs) =>
dependencyComparisonFn = (service, current) ->
service.networkMode == "#{service.appId}_#{current?.name}"
@_nextStepsForNetworkOrVolume({ current, target }, currentApp, changingPairs, dependencyComparisonFn, 'network', stepsInProgress)
@_nextStepsForNetworkOrVolume({ current, target }, currentApp, changingPairs, dependencyComparisonFn, 'network')
_nextStepsForVolume: ({ current, target }, currentApp, changingPairs, stepsInProgress) ->
_nextStepsForVolume: ({ current, target }, currentApp, changingPairs) ->
# Check none of the currentApp.services use this network or volume
dependencyComparisonFn = (service, current) ->
_.some service.volumes, (volumeDefinition) ->
sourceName = volumeDefinition.split(':')[0]
sourceName == "#{service.appId}_#{current?.name}"
@_nextStepsForNetworkOrVolume({ current, target }, currentApp, changingPairs, dependencyComparisonFn, 'volume', stepsInProgress)
@_nextStepsForNetworkOrVolume({ current, target }, currentApp, changingPairs, dependencyComparisonFn, 'volume')
# Infers steps that do not require creating a new container
_updateContainerStep: (current, target) ->
@ -679,15 +677,20 @@ module.exports = class ApplicationManager extends EventEmitter
}
_nextStepForService: ({ current, target }, updateContext) =>
{ targetApp, networkPairs, volumePairs, installPairs, updatePairs, stepsInProgress, availableImages } = updateContext
if _.find(stepsInProgress, (step) -> step.serviceId == target.serviceId)?
# There is already a step in progress for this service, so we wait
return null
{ targetApp, networkPairs, volumePairs, installPairs, updatePairs, availableImages, downloading } = updateContext
if current?.status == 'Stopping'
# There is already a kill step in progress for this service, so we wait
return { action: 'noop' }
needsDownload = !_.some availableImages, (image) =>
image.dockerImageId == target.image or @images.isSameImage(image, { name: target.imageName })
image.dockerImageId == target?.image or @images.isSameImage(image, { name: target.imageName })
# This service needs an image download but it's currently downloading, so we wait
if needsDownload and target?.imageId in downloading
return { action: 'noop' }
dependenciesMetForStart = =>
@_dependenciesMetForServiceStart(target, networkPairs, volumePairs, installPairs.concat(updatePairs), stepsInProgress)
@_dependenciesMetForServiceStart(target, networkPairs, volumePairs, installPairs.concat(updatePairs))
dependenciesMetForKill = =>
!needsDownload and @_dependenciesMetForServiceKill(target, targetApp, availableImages)
@ -709,7 +712,7 @@ module.exports = class ApplicationManager extends EventEmitter
timeout = checkInt(target.labels['io.resin.update.handover-timeout'])
return @_strategySteps[strategy](current, target, needsDownload, dependenciesMetForStart, dependenciesMetForKill, needsSpecialKill, timeout)
_nextStepsForAppUpdate: (currentApp, targetApp, availableImages = [], stepsInProgress = []) =>
_nextStepsForAppUpdate: (currentApp, targetApp, availableImages = [], downloading = []) =>
emptyApp = { services: [], volumes: {}, networks: {} }
if !targetApp?
targetApp = emptyApp
@ -735,12 +738,14 @@ module.exports = class ApplicationManager extends EventEmitter
steps = []
# All removePairs get a 'kill' action
for pair in removePairs
if !_.find(stepsInProgress, (step) -> step.serviceId == pair.current.serviceId)?
if pair.current.status != 'Stopping'
steps.push(serviceAction('kill', pair.current.serviceId, pair.current, null))
else
steps.push({ action: 'noop' })
# next step for install pairs in download - start order, but start requires dependencies, networks and volumes met
# next step for update pairs in order by update strategy. start requires dependencies, networks and volumes met.
for pair in installPairs.concat(updatePairs)
step = @_nextStepForService(pair, { targetApp, networkPairs, volumePairs, installPairs, updatePairs, stepsInProgress, availableImages })
step = @_nextStepForService(pair, { targetApp, networkPairs, volumePairs, installPairs, updatePairs, availableImages, downloading })
if step?
steps.push(step)
# next step for network pairs - remove requires services killed, create kill if no pairs or steps affect that service
@ -751,7 +756,7 @@ module.exports = class ApplicationManager extends EventEmitter
for pair in volumePairs
pairSteps = @_nextStepsForVolume(pair, currentApp, removePairs.concat(updatePairs))
steps = steps.concat(pairSteps)
return steps
return _.map(steps, (step) -> _.assign({}, step, { appId }))
normaliseAppForDB: (app) =>
services = _.map app.services, (s, serviceId) ->
@ -916,7 +921,7 @@ module.exports = class ApplicationManager extends EventEmitter
return notUsedForDelta and notUsedByProxyvisor
return { imagesToSave, imagesToRemove }
_inferNextSteps: (cleanupNeeded, availableImages, supervisorNetworkReady, current, target, stepsInProgress, ignoreImages, localMode) =>
_inferNextSteps: (cleanupNeeded, availableImages, downloading, supervisorNetworkReady, current, target, ignoreImages, localMode) =>
Promise.try =>
if checkTruthy(localMode)
target = _.cloneDeep(target)
@ -930,7 +935,7 @@ module.exports = class ApplicationManager extends EventEmitter
if !supervisorNetworkReady
nextSteps.push({ action: 'ensureSupervisorNetwork' })
else
if !ignoreImages and !_.some(stepsInProgress, (step) -> step.action == 'fetch')
if !ignoreImages and _.isEmpty(downloading)
if cleanupNeeded
nextSteps.push({ action: 'cleanup' })
{ imagesToRemove, imagesToSave } = @_compareImages(current, target, availableImages)
@ -943,19 +948,16 @@ module.exports = class ApplicationManager extends EventEmitter
if _.isEmpty(nextSteps)
allAppIds = _.union(_.keys(currentByAppId), _.keys(targetByAppId))
for appId in allAppIds
nextSteps = nextSteps.concat(@_nextStepsForAppUpdate(currentByAppId[appId], targetByAppId[appId], availableImages, stepsInProgress))
return @_removeDuplicateSteps(nextSteps, stepsInProgress)
_removeDuplicateSteps: (nextSteps, stepsInProgress) ->
withoutProgressDups = _.filter nextSteps, (step) ->
!_.find(stepsInProgress, (s) -> _.isEqual(s, step))?
_.uniqWith(withoutProgressDups, _.isEqual)
nextSteps = nextSteps.concat(@_nextStepsForAppUpdate(currentByAppId[appId], targetByAppId[appId], availableImages, downloading))
if !ignoreImages and _.isEmpty(nextSteps) and !_.isEmpty(downloading)
nextSteps.push({ action: 'noop' })
return _.uniqWith(nextSteps, _.isEqual)
stopAll: ({ force = false, skipLock = false } = {}) =>
@services.getAll()
.map (service) =>
@_lockingIfNecessary service.appId, { force, skipLock }, =>
@services.kill(service, { removeContainer: false })
@services.kill(service, { removeContainer: false, wait: true })
_lockingIfNecessary: (appId, { force = false, skipLock = false } = {}, fn) =>
if skipLock
@ -973,18 +975,19 @@ module.exports = class ApplicationManager extends EventEmitter
return Promise.reject(new Error("Invalid action #{step.action}"))
@actionExecutors[step.action](step, { force, skipLock })
getRequiredSteps: (currentState, targetState, stepsInProgress, ignoreImages = false) =>
getRequiredSteps: (currentState, targetState, ignoreImages = false) =>
Promise.join(
@images.isCleanupNeeded()
@images.getAvailable()
@images.getDownloadingImageIds()
@networks.supervisorNetworkReady()
@config.get('localMode')
(cleanupNeeded, availableImages, supervisorNetworkReady, localMode) =>
@_inferNextSteps(cleanupNeeded, availableImages, supervisorNetworkReady, currentState, targetState, stepsInProgress, ignoreImages, localMode)
(cleanupNeeded, availableImages, downloading, supervisorNetworkReady, localMode) =>
@_inferNextSteps(cleanupNeeded, availableImages, downloading, supervisorNetworkReady, currentState, targetState, ignoreImages, localMode)
.then (nextSteps) =>
if ignoreImages and _.some(nextSteps, (step) -> step.action == 'fetch')
throw new Error('Cannot fetch images while executing an API action')
@proxyvisor.getRequiredSteps(availableImages, currentState, targetState, nextSteps.concat(stepsInProgress))
@proxyvisor.getRequiredSteps(availableImages, downloading, currentState, targetState, nextSteps)
.then (proxyvisorSteps) ->
return nextSteps.concat(proxyvisorSteps)
)

24
src/compose/images.coffee
View File

@ -38,10 +38,12 @@ module.exports = class Images extends EventEmitter
delete @volatileState[imageId]
@emit('change')
fetch: (image, opts) =>
triggerFetch: (image, opts, onFinish) =>
onProgress = (progress) =>
@reportChange(image.imageId, { downloadProgress: progress.percentage })
onFinish ?= _.noop
@normalise(image.name)
.then (imageName) =>
image = _.clone(image)
@ -49,15 +51,18 @@ module.exports = class Images extends EventEmitter
@markAsSupervised(image)
.then =>
@inspectByName(imageName)
.tap (img) =>
.then (img) =>
@db.models('image').update({ dockerImageId: img.Id }).where(image)
.then ->
onFinish(true)
return
.catch =>
@reportChange(image.imageId, _.merge(_.clone(image), { status: 'Downloading', downloadProgress: 0 }))
Promise.try =>
if validation.checkTruthy(opts.delta) and opts.deltaSource and opts.deltaSource != 'resin/scratch'
@logger.logSystemEvent(logTypes.downloadImageDelta, { image })
@inspectByName(opts.deltaSource)
.then (srcImage) ->
.then (srcImage) =>
opts.deltaSourceId = srcImage.Id
@docker.rsyncImageWithProgress(imageName, opts, onProgress)
.tap (id) =>
@ -72,12 +77,15 @@ module.exports = class Images extends EventEmitter
@db.models('image').update({ dockerImageId: id }).where(image)
.then =>
@logger.logSystemEvent(logTypes.downloadImageSuccess, { image })
@inspectByName(imageName)
return true
.catch (err) =>
@logger.logSystemEvent(logTypes.downloadImageError, { image, error: err })
throw err
.finally =>
return false
.then (success) =>
@reportChange(image.imageId)
onFinish(success)
return
return
format: (image) ->
image.serviceId ?= null
@ -184,6 +192,10 @@ module.exports = class Images extends EventEmitter
@_withImagesFromDockerAndDB (dockerImages, supervisedImages) =>
_.filter(supervisedImages, (image) => @_isAvailableInDocker(image, dockerImages))
getDownloadingImageIds: =>
Promise.try =>
return _.map(_.keys(_.pickBy(@volatileState, (s) -> s.status == 'Downloading')), validation.checkInt)
cleanupDatabase: =>
@_withImagesFromDockerAndDB (dockerImages, supervisedImages) =>
Promise.map supervisedImages, (image) =>

79
src/compose/service-manager.coffee
View File

@ -40,46 +40,45 @@ module.exports = class ServiceManager extends EventEmitter
reportNewStatus: (containerId, service, status) =>
@reportChange(containerId, _.merge({ status }, _.pick(service, [ 'imageId', 'appId', 'releaseId', 'commit' ])))
_killContainer: (containerId, service = {}, { removeContainer = true }) =>
@logger.logSystemEvent(logTypes.stopService, { service })
if service.imageId?
@reportNewStatus(containerId, service, 'Stopping')
containerObj = @docker.getContainer(containerId)
containerObj.stop()
.then ->
if removeContainer
containerObj.remove(v: true)
.catch (err) =>
# Get the statusCode from the original cause and make sure statusCode it's definitely a string for comparison
# reasons.
statusCode = checkInt(err.statusCode)
# 304 means the container was already stopped - so we can just remove it
if statusCode is 304
@logger.logSystemEvent(logTypes.stopServiceNoop, { service })
if removeContainer
return containerObj.remove(v: true)
return
# 404 means the container doesn't exist, precisely what we want! :D
if statusCode is 404
@logger.logSystemEvent(logTypes.stopRemoveServiceNoop, { service })
return
throw err
.tap =>
delete @containerHasDied[containerId]
.tap =>
@logger.logSystemEvent(logTypes.stopServiceSuccess, { service })
.catch (err) =>
@logger.logSystemEvent(logTypes.stopServiceError, { service, error: err })
throw err
.finally =>
_killContainer: (containerId, service = {}, { removeContainer = true, wait = false }) =>
Promise.try =>
@logger.logSystemEvent(logTypes.stopService, { service })
if service.imageId?
@reportChange(containerId)
@reportNewStatus(containerId, service, 'Stopping')
containerObj = @docker.getContainer(containerId)
killPromise = containerObj.stop().then ->
if removeContainer
containerObj.remove(v: true)
.catch (err) =>
# Get the statusCode from the original cause and make sure statusCode it's definitely a string for comparison
# reasons.
statusCode = checkInt(err.statusCode)
# 304 means the container was already stopped - so we can just remove it
if statusCode is 304
@logger.logSystemEvent(logTypes.stopServiceNoop, { service })
if removeContainer
return containerObj.remove(v: true)
return
# 404 means the container doesn't exist, precisely what we want! :D
if statusCode is 404
@logger.logSystemEvent(logTypes.stopRemoveServiceNoop, { service })
return
throw err
.tap =>
delete @containerHasDied[containerId]
.tap =>
@logger.logSystemEvent(logTypes.stopServiceSuccess, { service })
.catch (err) =>
@logger.logSystemEvent(logTypes.stopServiceError, { service, error: err })
.finally =>
if service.imageId?
@reportChange(containerId)
if wait
return killPromise
return
kill: (service, { removeContainer = true } = {}) =>
@_killContainer(service.containerId, service, { removeContainer })
.then ->
service.running = false
return service
kill: (service, { removeContainer = true, wait = false } = {}) =>
@_killContainer(service.containerId, service, { removeContainer, wait })
getAllByAppId: (appId) =>
@getAll("io.resin.app-id=#{appId}")
@ -161,6 +160,10 @@ module.exports = class ServiceManager extends EventEmitter
.mapSeries (container) =>
@docker.getContainer(container.Id).inspect()
.then(Service.fromContainer)
.then (service) =>
if @volatileState[service.containerId]?.status?
service.status = @volatileState[service.containerId].status
return service
# Returns an array with the container(s) matching a service by appId, commit, image and environment
get: (service) =>

10
src/device-config.coffee
View File

@ -140,7 +140,7 @@ module.exports = class DeviceConfig
return true
else return false
getRequiredSteps: (currentState, targetState, stepsInProgress) =>
getRequiredSteps: (currentState, targetState) =>
current = _.clone(currentState.local?.config ? {})
target = _.clone(targetState.local?.config ? {})
steps = []
@ -192,13 +192,7 @@ module.exports = class DeviceConfig
})
return
.then ->
needsWait = !_.isEmpty(steps)
filteredSteps = _.filter steps, (step) ->
!_.find(stepsInProgress, (stepInProgress) -> _.isEqual(stepInProgress, step))?
if _.isEmpty(filteredSteps) and needsWait
return [{ action: 'noop' }]
else return filteredSteps
return steps
executeStepAction: (step, opts) =>
@actionExecutors[step.action](step, opts)

59
src/device-state.coffee
View File

@ -443,24 +443,17 @@ module.exports = class DeviceState extends EventEmitter
else
throw new Error("Invalid action #{step.action}")
applyStep: (step, { force, initial, intermediate, skipLock }, updateContext) =>
applyStep: (step, { force, initial, intermediate, skipLock }) =>
if @shuttingDown
return
@usingInferStepsLock ->
updateContext.stepsInProgress.push(step)
.then =>
@executeStepAction(step, { force, initial, skipLock })
.finally =>
@usingInferStepsLock ->
_.pullAllWith(updateContext.stepsInProgress, [ step ], _.isEqual)
@executeStepAction(step, { force, initial, skipLock })
.catch (err) =>
@emitAsync('step-error', err, step)
throw err
.then (stepResult) =>
@emitAsync('step-completed', null, step, stepResult)
@continueApplyTarget({ force, initial, intermediate }, updateContext)
applyError: (err, { force, initial, intermediate }, updateContext) =>
applyError: (err, { force, initial, intermediate }) =>
@emitAsync('apply-target-state-error', err)
@emitAsync('apply-target-state-end', err)
if !intermediate
@ -468,24 +461,16 @@ module.exports = class DeviceState extends EventEmitter
@reportCurrentState(update_failed: true)
if @scheduledApply?
console.log("Updating failed, but there's another update scheduled immediately: ", err)
force = force or @scheduledApply.force
delay = @scheduledApply.delay
@scheduledApply = null
else
delay = Math.min((2 ** @failedUpdates) * 500, 30000)
# If there was an error then schedule another attempt briefly in the future.
console.log('Scheduling another update attempt due to failure: ', delay, err)
@continueApplyTarget({ force, initial, intermediate }, updateContext, delay)
@triggerApplyTarget({ force, delay, initial })
else
updateContext.applyContinueScheduled = true
throw err
applyTarget: ({ force = false, initial = false, intermediate = false, skipLock = false } = {}, updateContext) =>
if !updateContext?
updateContext = {
stepsInProgress: []
applyContinueScheduled: false
}
applyTarget: ({ force = false, initial = false, intermediate = false, skipLock = false } = {}) =>
nextDelay = 200
Promise.try =>
if !intermediate
@applyBlocker
@ -496,42 +481,36 @@ module.exports = class DeviceState extends EventEmitter
@getCurrentForComparison()
@getTarget({ initial, intermediate })
(currentState, targetState) =>
@deviceConfig.getRequiredSteps(currentState, targetState, updateContext.stepsInProgress)
@deviceConfig.getRequiredSteps(currentState, targetState)
.then (deviceConfigSteps) =>
if !_.isEmpty(deviceConfigSteps)
return deviceConfigSteps
else
@applications.getRequiredSteps(currentState, targetState, updateContext.stepsInProgress, intermediate)
@applications.getRequiredSteps(currentState, targetState, intermediate)
)
.then (steps) =>
if _.isEmpty(steps) and _.isEmpty(updateContext.stepsInProgress)
if _.isEmpty(steps)
@emitAsync('apply-target-state-end', null)
if !intermediate
console.log('Finished applying target state')
@applications.timeSpentFetching = 0
@failedUpdates = 0
@lastSuccessfulUpdate = Date.now()
@reportCurrentState(update_failed: false, update_pending: false, update_downloaded: false)
@emitAsync('apply-target-state-end', null)
return
if !intermediate
@reportCurrentState(update_pending: true)
if _.every(steps, (step) -> step.action == 'noop')
nextDelay = 1000
Promise.map steps, (step) =>
@applyStep(step, { force, initial, intermediate, skipLock }, updateContext)
.catch (err) =>
@applyError(err, { force, initial, intermediate }, updateContext)
continueApplyTarget: ({ force = false, initial = false, intermediate = false } = {}, updateContext, delay = 100) =>
Promise.try =>
if !intermediate
@applyBlocker
.then =>
if updateContext.applyContinueScheduled
return
updateContext.applyContinueScheduled = true
Promise.delay(delay)
console.log('Running ' + step.action)
@applyStep(step, { force, initial, intermediate, skipLock })
.then ->
Promise.delay(nextDelay)
.then =>
updateContext.applyContinueScheduled = false
@applyTarget({ force, initial, intermediate }, updateContext)
@applyTarget({ force, initial, intermediate, skipLock })
.catch (err) =>
@applyError(err, { force, initial, intermediate })
pausingApply: (fn) =>
lock = =>

91
src/proxyvisor.coffee
View File

@ -512,7 +512,48 @@ module.exports = class Proxyvisor
dependent: true
}
getRequiredSteps: (availableImages, current, target, stepsInProgress) =>
nextStepsForDependentApp: (appId, availableImages, downloading, current, target, currentDevices, targetDevices, stepsInProgress) =>
# - if there's current but not target, push a removeDependentApp step
if !target?
return [{
action: 'removeDependentApp'
appId: current.appId
}]
if _.some(stepsInProgress, (step) -> step.appId == target.parentApp)
return [{ action: 'noop' }]
needsDownload = target.commit? and target.image? and !@_imageAvailable(target.image, availableImages)
# - if toBeDownloaded includes this app, push a fetch step
if needsDownload
if target.imageId in downloading
return [{ action: 'noop' }]
else
return [{
action: 'fetch'
appId
image: @imageForDependentApp(target)
}]
devicesDiffer = @_compareDevices(currentDevices, targetDevices, appId)
# - if current doesn't match target, or the devices differ, push an updateDependentTargets step
if !_.isEqual(current, target) or devicesDiffer
return [{
action: 'updateDependentTargets'
devices: targetDevices
app: target
appId
}]
# if we got to this point, the current app is up to date and devices have the
# correct targetCommit, targetEnvironment and targetConfig.
hookStep = @_getHookStep(currentDevices, appId)
if !_.isEmpty(hookStep.devices)
return [ hookStep ]
return []
getRequiredSteps: (availableImages, downloading, current, target, stepsInProgress) =>
steps = []
Promise.try =>
targetApps = _.keyBy(target.dependent?.apps ? [], 'appId')
@ -521,54 +562,18 @@ module.exports = class Proxyvisor
currentAppIds = _.keys(currentApps)
allAppIds = _.union(targetAppIds, currentAppIds)
toBeDownloaded = _.filter targetAppIds, (appId) =>
return targetApps[appId].commit? and targetApps[appId].image? and !@_imageAvailable(targetApps[appId].image, availableImages)
appIdsToCheck = _.filter allAppIds, (appId) ->
# - if a step is in progress for this appId, ignore
!_.some(steps.concat(stepsInProgress), (step) -> step.appId == appId)
for appId in appIdsToCheck
# - if there's current but not target, push a removeDependentApp step
if !targetApps[appId]?
steps.push({
action: 'removeDependentApp'
appId
})
return
# - if toBeDownloaded includes this app, push a fetch step
if _.includes(toBeDownloaded, appId)
steps.push({
action: 'fetch'
appId
image: @imageForDependentApp(targetApps[appId])
})
return
for appId in allAppIds
devicesForApp = (devices) ->
_.filter devices, (d) ->
_.includes(_.keys(d.apps), appId)
currentDevices = devicesForApp(current.dependent.devices)
targetDevices = devicesForApp(target.dependent.devices)
devicesDiffer = @_compareDevices(currentDevices, targetDevices, appId)
# - if current doesn't match target, or the devices differ, push an updateDependentTargets step
if !_.isEqual(currentApps[appId], targetApps[appId]) or devicesDiffer
steps.push({
action: 'updateDependentTargets'
devices: targetDevices
app: targetApps[appId]
appId
})
return
# if we got to this point, the current app is up to date and devices have the
# correct targetCommit, targetEnvironment and targetConfig.
hookStep = @_getHookStep(currentDevices, appId)
if !_.isEmpty(hookStep.devices)
steps.push(hookStep)
.then ->
stepsForApp = @nextStepsForDependentApp(appId, availableImages, downloading,
currentApps[appId], targetApps[appId],
currentDevices, targetDevices,
stepsInProgress)
steps = steps.concat(stepsForApp)
return steps
getHookEndpoint: (appId) =>