mirror of
https://github.com/overleaf/overleaf.git
synced 2024-11-07 20:31:06 -05:00
354 lines
No EOL
13 KiB
CoffeeScript
354 lines
No EOL
13 KiB
CoffeeScript
Settings = require "settings-sharelatex"
|
|
logger = require "logger-sharelatex"
|
|
Docker = require("dockerode")
|
|
dockerode = new Docker()
|
|
crypto = require "crypto"
|
|
async = require "async"
|
|
LockManager = require "./DockerLockManager"
|
|
fs = require "fs"
|
|
Path = require 'path'
|
|
_ = require "underscore"
|
|
|
|
logger.info "using docker runner"
|
|
|
|
usingSiblingContainers = () ->
|
|
Settings?.path?.sandboxedCompilesHostDir?
|
|
|
|
module.exports = DockerRunner =
|
|
ERR_NOT_DIRECTORY: new Error("not a directory")
|
|
ERR_TERMINATED: new Error("terminated")
|
|
ERR_EXITED: new Error("exited")
|
|
ERR_TIMED_OUT: new Error("container timed out")
|
|
|
|
run: (project_id, command, directory, image, timeout, environment, callback = (error, output) ->) ->
|
|
|
|
if usingSiblingContainers()
|
|
_newPath = Settings.path.sandboxedCompilesHostDir
|
|
logger.log {path: _newPath}, "altering bind path for sibling containers"
|
|
# Server Pro, example:
|
|
# '/var/lib/sharelatex/data/compiles/<project-id>'
|
|
# ... becomes ...
|
|
# '/opt/sharelatex_data/data/compiles/<project-id>'
|
|
directory = Path.join(Settings.path.sandboxedCompilesHostDir, Path.basename(directory))
|
|
|
|
volumes = {}
|
|
volumes[directory] = "/compile"
|
|
|
|
command = (arg.toString().replace?('$COMPILE_DIR', "/compile") for arg in command)
|
|
if !image?
|
|
image = Settings.clsi.docker.image
|
|
|
|
if Settings.texliveImageNameOveride?
|
|
img = image.split("/")
|
|
image = "#{Settings.texliveImageNameOveride}/#{img[2]}"
|
|
|
|
options = DockerRunner._getContainerOptions(command, image, volumes, timeout, environment)
|
|
fingerprint = DockerRunner._fingerprintContainer(options)
|
|
options.name = name = "project-#{project_id}-#{fingerprint}"
|
|
|
|
logger.log project_id: project_id, options: options, "running docker container"
|
|
DockerRunner._runAndWaitForContainer options, volumes, timeout, (error, output) ->
|
|
if error?.message?.match("HTTP code is 500")
|
|
logger.log err: error, project_id: project_id, "error running container so destroying and retrying"
|
|
DockerRunner.destroyContainer name, null, true, (error) ->
|
|
return callback(error) if error?
|
|
DockerRunner._runAndWaitForContainer options, volumes, timeout, callback
|
|
else
|
|
callback(error, output)
|
|
|
|
return name # pass back the container name to allow it to be killed
|
|
|
|
kill: (container_id, callback = (error) ->) ->
|
|
logger.log container_id: container_id, "sending kill signal to container"
|
|
container = dockerode.getContainer(container_id)
|
|
container.kill (error) ->
|
|
if error? and error?.message?.match?(/Cannot kill container .* is not running/)
|
|
logger.warn err: error, container_id: container_id, "container not running, continuing"
|
|
error = null
|
|
if error?
|
|
logger.error err: error, container_id: container_id, "error killing container"
|
|
return callback(error)
|
|
else
|
|
callback()
|
|
|
|
_runAndWaitForContainer: (options, volumes, timeout, _callback = (error, output) ->) ->
|
|
callback = (args...) ->
|
|
_callback(args...)
|
|
# Only call the callback once
|
|
_callback = () ->
|
|
|
|
name = options.name
|
|
|
|
streamEnded = false
|
|
containerReturned = false
|
|
output = {}
|
|
|
|
callbackIfFinished = () ->
|
|
if streamEnded and containerReturned
|
|
callback(null, output)
|
|
|
|
attachStreamHandler = (error, _output) ->
|
|
return callback(error) if error?
|
|
output = _output
|
|
streamEnded = true
|
|
callbackIfFinished()
|
|
|
|
DockerRunner.startContainer options, volumes, attachStreamHandler, (error, containerId) ->
|
|
return callback(error) if error?
|
|
|
|
DockerRunner.waitForContainer name, timeout, (error, exitCode) ->
|
|
return callback(error) if error?
|
|
if exitCode is 137 # exit status from kill -9
|
|
err = DockerRunner.ERR_TERMINATED
|
|
err.terminated = true
|
|
return callback(err)
|
|
if exitCode is 1 # exit status from chktex
|
|
err = DockerRunner.ERR_EXITED
|
|
err.code = exitCode
|
|
return callback(err)
|
|
containerReturned = true
|
|
callbackIfFinished()
|
|
|
|
_getContainerOptions: (command, image, volumes, timeout, environment) ->
|
|
timeoutInSeconds = timeout / 1000
|
|
|
|
dockerVolumes = {}
|
|
for hostVol, dockerVol of volumes
|
|
dockerVolumes[dockerVol] = {}
|
|
|
|
if volumes[hostVol].slice(-3).indexOf(":r") == -1
|
|
volumes[hostVol] = "#{dockerVol}:rw"
|
|
|
|
# merge settings and environment parameter
|
|
env = {}
|
|
for src in [Settings.clsi.docker.env, environment or {}]
|
|
env[key] = value for key, value of src
|
|
# set the path based on the image year
|
|
if m = image.match /:([0-9]+)\.[0-9]+/
|
|
year = m[1]
|
|
else
|
|
year = "2014"
|
|
env['PATH'] = "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/local/texlive/#{year}/bin/x86_64-linux/"
|
|
options =
|
|
"Cmd" : command,
|
|
"Image" : image
|
|
"Volumes" : dockerVolumes
|
|
"WorkingDir" : "/compile"
|
|
"NetworkDisabled" : true
|
|
"Memory" : 1024 * 1024 * 1024 * 1024 # 1 Gb
|
|
"User" : Settings.clsi.docker.user
|
|
"Env" : ("#{key}=#{value}" for key, value of env) # convert the environment hash to an array
|
|
"HostConfig" :
|
|
"Binds": ("#{hostVol}:#{dockerVol}" for hostVol, dockerVol of volumes)
|
|
"LogConfig": {"Type": "none", "Config": {}}
|
|
"Ulimits": [{'Name': 'cpu', 'Soft': timeoutInSeconds+5, 'Hard': timeoutInSeconds+10}]
|
|
"CapDrop": "ALL"
|
|
"SecurityOpt": ["no-new-privileges"]
|
|
|
|
if Settings.clsi.docker.seccomp_profile?
|
|
options.HostConfig.SecurityOpt.push "seccomp=#{Settings.clsi.docker.seccomp_profile}"
|
|
|
|
if Settings.path?.synctexBinHostPath?
|
|
options["HostConfig"]["Binds"].push("#{Settings.path.synctexBinHostPath}:/opt/synctex:ro")
|
|
|
|
logger.log options:options, "options for running docker container"
|
|
return options
|
|
|
|
_fingerprintContainer: (containerOptions) ->
|
|
# Yay, Hashing!
|
|
json = JSON.stringify(containerOptions)
|
|
return crypto.createHash("md5").update(json).digest("hex")
|
|
|
|
startContainer: (options, volumes, attachStreamHandler, callback) ->
|
|
LockManager.runWithLock options.name, (releaseLock) ->
|
|
# Check that volumes exist before starting the container.
|
|
# When a container is started with volume pointing to a
|
|
# non-existent directory then docker creates the directory but
|
|
# with root ownership.
|
|
DockerRunner._checkVolumes options, volumes, (err) ->
|
|
return releaseLock(err) if err?
|
|
DockerRunner._startContainer options, volumes, attachStreamHandler, releaseLock
|
|
, callback
|
|
|
|
# Check that volumes exist and are directories
|
|
_checkVolumes: (options, volumes, callback = (error, containerName) ->) ->
|
|
if usingSiblingContainers()
|
|
# Server Pro, with sibling-containers active, skip checks
|
|
return callback(null)
|
|
|
|
checkVolume = (path, cb) ->
|
|
fs.stat path, (err, stats) ->
|
|
return cb(err) if err?
|
|
return cb(DockerRunner.ERR_NOT_DIRECTORY) if not stats?.isDirectory()
|
|
cb()
|
|
jobs = []
|
|
for vol of volumes
|
|
do (vol) ->
|
|
jobs.push (cb) -> checkVolume(vol, cb)
|
|
async.series jobs, callback
|
|
|
|
_startContainer: (options, volumes, attachStreamHandler, callback = ((error, output) ->)) ->
|
|
callback = _.once(callback)
|
|
name = options.name
|
|
|
|
logger.log {container_name: name}, "starting container"
|
|
container = dockerode.getContainer(name)
|
|
|
|
createAndStartContainer = ->
|
|
dockerode.createContainer options, (error, container) ->
|
|
return callback(error) if error?
|
|
startExistingContainer()
|
|
|
|
startExistingContainer = ->
|
|
DockerRunner.attachToContainer options.name, attachStreamHandler, (error)->
|
|
return callback(error) if error?
|
|
container.start (error) ->
|
|
if error? and error?.statusCode != 304 #already running
|
|
return callback(error)
|
|
else
|
|
callback()
|
|
|
|
container.inspect (error, stats)->
|
|
if error?.statusCode == 404
|
|
createAndStartContainer()
|
|
else if error?
|
|
logger.err {container_name: name}, "unable to inspect container to start"
|
|
return callback(error)
|
|
else
|
|
startExistingContainer()
|
|
|
|
|
|
attachToContainer: (containerId, attachStreamHandler, attachStartCallback) ->
|
|
container = dockerode.getContainer(containerId)
|
|
container.attach {stdout: 1, stderr: 1, stream: 1}, (error, stream) ->
|
|
if error?
|
|
logger.error err: error, container_id: containerId, "error attaching to container"
|
|
return attachStartCallback(error)
|
|
else
|
|
attachStartCallback()
|
|
|
|
|
|
logger.log container_id: containerId, "attached to container"
|
|
|
|
MAX_OUTPUT = 1024 * 1024 # limit output to 1MB
|
|
createStringOutputStream = (name) ->
|
|
return {
|
|
data: ""
|
|
overflowed: false
|
|
write: (data) ->
|
|
return if @overflowed
|
|
if @data.length < MAX_OUTPUT
|
|
@data += data
|
|
else
|
|
logger.error container_id: containerId, length: @data.length, maxLen: MAX_OUTPUT, "#{name} exceeds max size"
|
|
@data += "(...truncated at #{MAX_OUTPUT} chars...)"
|
|
@overflowed = true
|
|
# kill container if too much output
|
|
# docker.containers.kill(containerId, () ->)
|
|
}
|
|
|
|
stdout = createStringOutputStream "stdout"
|
|
stderr = createStringOutputStream "stderr"
|
|
|
|
container.modem.demuxStream(stream, stdout, stderr)
|
|
|
|
stream.on "error", (err) ->
|
|
logger.error err: err, container_id: containerId, "error reading from container stream"
|
|
|
|
stream.on "end", () ->
|
|
attachStreamHandler null, {stdout: stdout.data, stderr: stderr.data}
|
|
|
|
waitForContainer: (containerId, timeout, _callback = (error, exitCode) ->) ->
|
|
callback = (args...) ->
|
|
_callback(args...)
|
|
# Only call the callback once
|
|
_callback = () ->
|
|
|
|
container = dockerode.getContainer(containerId)
|
|
|
|
timedOut = false
|
|
timeoutId = setTimeout () ->
|
|
timedOut = true
|
|
logger.log container_id: containerId, "timeout reached, killing container"
|
|
container.kill(() ->)
|
|
, timeout
|
|
|
|
logger.log container_id: containerId, "waiting for docker container"
|
|
container.wait (error, res) ->
|
|
if error?
|
|
clearTimeout timeoutId
|
|
logger.error err: error, container_id: containerId, "error waiting for container"
|
|
return callback(error)
|
|
if timedOut
|
|
logger.log containerId: containerId, "docker container timed out"
|
|
error = DockerRunner.ERR_TIMED_OUT
|
|
error.timedout = true
|
|
callback error
|
|
else
|
|
clearTimeout timeoutId
|
|
logger.log container_id: containerId, exitCode: res.StatusCode, "docker container returned"
|
|
callback null, res.StatusCode
|
|
|
|
destroyContainer: (containerName, containerId, shouldForce, callback = (error) ->) ->
|
|
# We want the containerName for the lock and, ideally, the
|
|
# containerId to delete. There is a bug in the docker.io module
|
|
# where if you delete by name and there is an error, it throws an
|
|
# async exception, but if you delete by id it just does a normal
|
|
# error callback. We fall back to deleting by name if no id is
|
|
# supplied.
|
|
LockManager.runWithLock containerName, (releaseLock) ->
|
|
DockerRunner._destroyContainer containerId or containerName, shouldForce, releaseLock
|
|
, callback
|
|
|
|
_destroyContainer: (containerId, shouldForce, callback = (error) ->) ->
|
|
logger.log container_id: containerId, "destroying docker container"
|
|
container = dockerode.getContainer(containerId)
|
|
container.remove {force: shouldForce == true}, (error) ->
|
|
if error? and error?.statusCode == 404
|
|
logger.warn err: error, container_id: containerId, "container not found, continuing"
|
|
error = null
|
|
if error?
|
|
logger.error err: error, container_id: containerId, "error destroying container"
|
|
else
|
|
logger.log container_id: containerId, "destroyed container"
|
|
callback(error)
|
|
|
|
# handle expiry of docker containers
|
|
|
|
MAX_CONTAINER_AGE: Settings.clsi.docker.maxContainerAge or oneHour = 60 * 60 * 1000
|
|
|
|
examineOldContainer: (container, callback = (error, name, id, ttl)->) ->
|
|
name = container.Name or container.Names?[0]
|
|
created = container.Created * 1000 # creation time is returned in seconds
|
|
now = Date.now()
|
|
age = now - created
|
|
maxAge = DockerRunner.MAX_CONTAINER_AGE
|
|
ttl = maxAge - age
|
|
logger.log {containerName: name, created: created, now: now, age: age, maxAge: maxAge, ttl: ttl}, "checking whether to destroy container"
|
|
callback(null, name, container.Id, ttl)
|
|
|
|
destroyOldContainers: (callback = (error) ->) ->
|
|
dockerode.listContainers all: true, (error, containers) ->
|
|
return callback(error) if error?
|
|
jobs = []
|
|
for container in containers or []
|
|
do (container) ->
|
|
DockerRunner.examineOldContainer container, (err, name, id, ttl) ->
|
|
if name.slice(0, 9) == '/project-' && ttl <= 0
|
|
jobs.push (cb) ->
|
|
DockerRunner.destroyContainer name, id, false, () -> cb()
|
|
# Ignore errors because some containers get stuck but
|
|
# will be destroyed next time
|
|
async.series jobs, callback
|
|
|
|
startContainerMonitor: () ->
|
|
logger.log {maxAge: DockerRunner.MAX_CONTAINER_AGE}, "starting container expiry"
|
|
# randomise the start time
|
|
randomDelay = Math.floor(Math.random() * 5 * 60 * 1000)
|
|
setTimeout () ->
|
|
setInterval () ->
|
|
DockerRunner.destroyOldContainers()
|
|
, oneHour = 60 * 60 * 1000
|
|
, randomDelay
|
|
|
|
DockerRunner.startContainerMonitor() |