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container_manager.py
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#!/usr/bin/env python3
import argparse
import datetime
import grp
import logging
import logging.config
import os
import pwd
import random
import shlex
import shutil
import stat
import subprocess
import sys
import time
import lxc
import psutil
import yaml
number_of_compute_nodes = 3
#This will be visible on root and help pages. Suggested template:
# Resources for your computation are provided by <a href="...">...</a>.
provider_html = r"""
"""
# Container names
lxcn_base = "base" # OS and packages
lxcn_precell = "precell" # Everything but SageCell and system configuration
lxcn_sagecell = "sagecell" # Sage and SageCell
lxcn_backup = "sagecell-backup" # Saved master for restoration if necessary
lxcn_tester = "sctest" # Accessible via special port, for testing
lxcn_prefix = "sc-" # Prefix for main compute nodes
lxcn_version_prefix = "sage-" # Prefix for fixed version compute nodes
# Timeout in seconds to wait for a container to shutdown, network to start etc.
timeout = 120
# Time after which SageCell should be up and running.
start_delay = 126
# How long to wait after starting new containers before destroying old ones.
deploy_delay = 2*60*60 # Two hours to allow all interacts finish "naturally".
# User names and IDs
users = {"group": "sagecell", "GID": 8888,
"server": "sc_serv", "server_ID": 8888,
"worker": "sc_work", "worker_ID": 9999}
# Github repositories as (user, repository, branch)
repositories = [
("sagemath", "sage", "10.2"), # Jupyter js code is gone in Sage-10.3 and will require substantial work to deal with
("sagemath", "sagecell", "master"),
]
# Packages to be installed in the base container
system_packages = [
# SageMath prerequisites as of Sage 9.7
'bc',
'binutils',
'bzip2',
'ca-certificates',
'cliquer',
'cmake',
'curl',
'ecl',
'eclib-tools',
'fflas-ffpack',
'flintqs',
'g++',
'gcc',
'gengetopt',
'gfan',
'gfortran',
'glpk-utils',
'gmp-ecm',
'lcalc',
'libatomic-ops-dev',
'libboost-dev',
'libbraiding-dev',
'libbz2-dev',
'libcdd-dev',
'libcdd-tools',
'libcliquer-dev',
'libcurl4-openssl-dev',
'libec-dev',
'libecm-dev',
'libffi-dev',
'libflint-dev',
'libfplll-dev',
'libfreetype6-dev',
'libgc-dev',
'libgd-dev',
'libgf2x-dev',
'libgiac-dev',
'libgivaro-dev',
'libglpk-dev',
'libgmp-dev',
'libgsl-dev',
'libhomfly-dev',
'libiml-dev',
'liblfunction-dev',
'liblinbox-dev',
'liblrcalc-dev',
'liblzma-dev',
'libm4ri-dev',
'libm4rie-dev',
'libmpc-dev',
'libmpfi-dev',
'libmpfr-dev',
'libncurses5-dev',
'libntl-dev',
'libopenblas-dev',
'libpari-dev',
'libpcre3-dev',
'libplanarity-dev',
'libppl-dev',
'libprimesieve-dev',
'libpython3-dev',
'libqhull-dev',
'libreadline-dev',
'librw-dev',
'libsingular4-dev',
'libsqlite3-dev',
'libssl-dev',
'libsuitesparse-dev',
'libsymmetrica2-dev',
'libz-dev',
'libzmq3-dev',
'libzn-poly-dev',
'm4',
'make',
'nauty',
'ninja-build',
'openssl',
'palp',
'pari-doc',
'pari-elldata',
'pari-galdata',
'pari-galpol',
'pari-gp2c',
'pari-seadata',
'patch',
'perl',
'pkg-config',
'planarity',
'ppl-dev',
'python3',
'python3-venv',
'r-base-dev',
'r-cran-lattice',
'singular',
'singular-doc',
'sqlite3',
'sympow',
'tachyon',
'tar',
'tox',
'xcas',
'xz-utils',
# SageMath development
'autoconf',
'automake',
'git',
'gpgconf',
'libtool',
# 'openssh', not available on Ubuntu 22.04
'openssh-client',
'pkg-config',
# SageMath recommendations
'default-jdk',
'dvipng',
'ffmpeg',
'imagemagick',
'latexmk',
'libavdevice-dev',
'pandoc',
'tex-gyre',
'texlive-fonts-recommended',
'texlive-lang-cyrillic',
'texlive-lang-english',
'texlive-lang-european',
'texlive-lang-french',
'texlive-lang-german',
'texlive-lang-italian',
'texlive-lang-japanese',
'texlive-lang-polish',
'texlive-lang-portuguese',
'texlive-lang-spanish',
'texlive-latex-extra',
'texlive-xetex',
# SageMath optional
'4ti2',
'clang',
'coinor-cbc',
'coinor-libcbc-dev',
'graphviz',
'libfile-slurp-perl',
'libgraphviz-dev',
'libigraph-dev',
'libisl-dev',
'libjson-perl',
'libmongodb-perl',
'libnauty-dev',
'libperl-dev',
'libpolymake-dev',
'libsvg-perl',
'libterm-readkey-perl',
'libterm-readline-gnu-perl',
'libxml-libxslt-perl',
'libxml-writer-perl',
'libxml2-dev',
'lrslib',
'pari-gp2c',
'pdf2svg',
# 'polymake', triggers firefox snap that does not work in containers
'texinfo',
# SageMathCell
'bison',
'build-essential',
'epstool',
'fig2dev',
'gettext',
'gnuplot',
'ipset',
'iptables',
'libcairo2-dev',
'libgeos-dev',
'libhdf5-dev',
'libnetcdf-dev',
'libopenmpi-dev',
'libopenmpi3',
'libproj-dev',
'libsnappy-dev',
'libsystemd-dev',
'libxslt1-dev',
'macaulay2',
'nginx',
'npm',
'octave',
'octave-econometrics',
'octave-statistics',
'octave-symbolic',
'php8.3-fpm',
'proj-bin',
'python3-requests',
'rsyslog-relp',
'ssh',
'texlive',
'tk-dev',
'tmpreaper',
'unattended-upgrades',
'unzip',
'wget',
# R packages
'r-cran-desolve',
'r-cran-ggally',
'r-cran-ggeffects',
'r-cran-ggplot2',
'r-cran-lazyeval',
'r-cran-pracma',
'r-cran-reticulate',
'r-cran-rhandsontable',
'r-cran-rms',
'r-cran-survey',
'r-cran-tidyverse',
]
# R packages that are not available as system ones
R_packages = [
"flextable",
"formattable",
"ggformula",
"glmmTMB",
"gt",
"gtExtras",
"huxtable",
"kableExtra",
"mosaic",
"pixiedust",
"reactable",
"reactablefmtr",
"swirl",
]
# Optional Sage packages to be installed
sage_optional_packages = [
"4ti2",
"biopython",
"bliss",
"cbc",
"database_cremona_ellcurve",
"database_jones_numfield",
"database_odlyzko_zeta",
"database_symbolic_data",
"dot2tex", # needs graphviz
"fricas",
"gap_packages",
"gap3",
"latte_int",
"lie", # needs bison
"lrslib",
"mcqd",
"normaliz",
"pari_elldata",
"pari_galpol",
"pari_nftables",
"pari_seadata",
"pybtex", # needs unzip
"pynormaliz",
"qepcad",
"saclib",
"tides",
#"topcom", Does not work as of November 2022 with relying on system packages
]
# Python packages to be installed into Sage (via pip)
python_packages = [
# Dependencies of SageMathCell
"comm",
"lockfile",
"paramiko",
"psutil",
"sockjs-tornado",
"git+https://github.com/systemd/python-systemd.git",
# Optional
"future", # fipy does not work without it installed first
"--no-build-isolation git+https://github.com/abelfunctions/abelfunctions",
"admcycles",
"altair",
"APMonitor",
"astropy",
"astroquery",
"autoviz",
"bioinfokit",
"bitarray",
"bokeh",
"calplot",
"cartopy",
"chart_studio",
"colorlog",
"covid-daily",
"cramjam",
"cufflinks",
"dash",
"dask[array]",
"drawdata",
"dropbox",
"duckdb",
"emoji",
"galgebra",
"geopandas",
"geoplot",
"getdist",
"ggplot",
"gif",
"giotto-tda",
"google-api-python-client",
"google-generativeai",
"graphviz",
"gspread",
"fipy",
"folium",
"healpy",
"h5py",
"husl",
"itikz",
"july",
"keras",
"keyring",
"koboextractor",
"langchain",
"langchain-openai",
"langserve",
"langserve[all]",
"lenstools",
"lhsmdu",
"lxml",
"manimlib",
"mapclassify",
"mathchem",
"mistralai",
"mpi4py",
"msedge-selenium-tools",
"munkres",
"nest_asyncio",
"netcdf4",
"nltk",
"numexpr",
"oauth2client",
"oct2py",
"openai",
"openpyxl",
"pandas",
"pandas-profiling",
"patsy",
"plotly",
"polars",
"pretty_html_table",
"pydot",
"pyforest",
"pygnuplot",
"PyPDF4",
"pyproj",
"pyswarms",
"python-snappy",
"python-ternary",
"pyvo",
"qiskit",
"qiskit[nature]",
"requests",
"scikit-image",
"scikit-learn",
"scikit-tda",
"scimath",
"scrapy",
"seaborn",
"selenium",
"Shapely",
"SimPy",
"snappy",
"spacy",
"SpeechRecognition",
"spiceypy",
"statsmodels",
"surface_dynamics",
"sweetviz",
"tables",
"tbcontrol",
"theano",
"tikzplotlib",
"torch",
"transformers",
"tweepy",
"twint",
"vega_datasets",
"WeasyPrint",
"wordcloud",
"xarray",
"xlrd",
"moss", # This one only complains about missing dependencies
]
# limits configuration for the host - will not be overwritten later
limits_conf = """\
* - nofile 32768
root - nofile 32768
"""
# rsyslog configuration for the host - will not be overwritten later
rsyslog_conf = r"""global(maxMessageSize="64k")
module(load="imrelp")
input(type="imrelp" port="12514")
template(name="sagecell" type="list") {
property(name="hostname")
constant(value=" ")
property(name="syslogtag")
property(name="msg" spifno1stsp="on")
property(name="msg" droplastlf="on")
constant(value="\n")
}
if $syslogfacility-text == "local3" then
{
action(type="omfile"
file="/var/log/sagecell.stats.log"
template="sagecell")
stop
}
"""
# HA-Proxy configuration is regenerated every time the script is run.
HAProxy_header = """\
# Default from Ubuntu 22.04 LTS
global
log /dev/log local0
log /dev/log local1 notice
chroot /var/lib/haproxy
stats socket /run/haproxy/admin.sock mode 660 level admin expose-fd listeners
stats timeout 30s
user haproxy
group haproxy
daemon
# Default SSL material locations
ca-base /etc/ssl/certs
crt-base /etc/ssl/private
# See: https://ssl-config.mozilla.org/#server=haproxy&server-version=2.0.3&config=intermediate
ssl-default-bind-ciphers ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384
ssl-default-bind-ciphersuites TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256
ssl-default-bind-options ssl-min-ver TLSv1.2 no-tls-tickets
defaults
log global
mode http
option httplog
option dontlognull
timeout connect 5000
timeout client 50000
timeout server 50000
errorfile 400 /etc/haproxy/errors/400.http
errorfile 403 /etc/haproxy/errors/403.http
errorfile 408 /etc/haproxy/errors/408.http
errorfile 500 /etc/haproxy/errors/500.http
errorfile 502 /etc/haproxy/errors/502.http
errorfile 503 /etc/haproxy/errors/503.http
errorfile 504 /etc/haproxy/errors/504.http
# SageMathCell additions
option http-server-close
option redispatch
timeout client-fin 50s
timeout tunnel 30m
"""
# {suffix} {port} {hostname} {peer_port} have to be set once
# lines with {node} and {id} should be repeated for each server
HAProxy_section = r"""
frontend http{suffix}
bind *:{port}
rate-limit sessions 10
http-request replace-path (/embedded_sagecell\.js.*) /static\1 if { url_beg /embedded_sagecell }
use_backend static{suffix} if { path_beg /static }
use_backend compute{suffix}
monitor-uri /?healthcheck
monitor fail if { nbsrv(compute{suffix}) lt 1 }
peers local{suffix}
peer {hostname} localhost:{peer_port}
backend static{suffix}
server {node} {ip}:8889 id {id} check
backend compute{suffix}
stick-table type string len 36 size 1m expire 30m peers local{suffix}
stick on urlp(CellSessionID)
stick match req.hdr(Jupyter-Kernel-ID)
stick store-response res.hdr(Jupyter-Kernel-ID)
stick match path bytes(8,36) if { path_reg ^/kernel/.{36}/ }
option httpchk
server {node} {ip}:8888 id {id} check
"""
HAProxy_stats = """
listen stats
bind *:9999
stats enable
stats refresh 5s
stats uri /
stats show-legends
"""
def call(command):
command = command.format_map(users)
log.debug("executing %s", command)
return subprocess.call(shlex.split(command))
def check_call(command):
command = command.format_map(users)
log.debug("executing %s", command)
subprocess.check_call(shlex.split(command))
def check_output(command):
command = command.format_map(users)
log.debug("executing %s", command)
return subprocess.check_output(shlex.split(command),
universal_newlines=True)
def communicate(command, message):
command = command.format_map(users)
log.debug("sending %s to %s", message, command)
with subprocess.Popen(shlex.split(command),
stdin=subprocess.PIPE,
universal_newlines=True) as p:
p.communicate(message)
if p.returncode != 0:
msg = "{} failed".format(command)
log.error(msg)
raise RuntimeError(msg)
def timer_delay(delay, test=None):
r"""
Wait with a countdown timer.
``delay`` is either a timedelta or the number of seconds.
``test`` is either ``None`` (default) or callable, in which case the timer
stops as soon as ``False`` is returned.
"""
if isinstance(delay, datetime.timedelta):
delay = delay.total_seconds()
now = time.time()
end = now + delay
while now < end and (test is None or test()):
remaining = datetime.timedelta(seconds=int(end - now))
sys.stdout.write(" Please wait {} ...\r".format(remaining))
sys.stdout.flush()
time.sleep(1)
now = time.time()
def update_repositories():
r"""
Clone/update repositories and checkout appropriate branches.
"""
if not os.path.exists("github"):
os.mkdir("github")
os.chdir("github")
git = lambda command: check_call("git " + command)
for user, repository, branch in repositories:
log.info("updating repository %s", repository)
if not os.path.exists(repository):
git("clone https://github.com/{}/{}.git".format(user, repository))
os.chdir(repository)
git("fetch")
git("checkout " + branch)
if call("git symbolic-ref -q HEAD") == 0:
git("pull")
os.chdir(os.pardir)
os.chdir(os.pardir)
def create_host_users():
r"""
Create host users if necessary.
If users exist (from previous runs), check that they are as expected.
"""
log.info("creating users on the host")
try:
check_call("addgroup --gid {GID} {group}")
check_call("adduser --uid {server_ID} --ingroup {group} --gecos '' "
"--disabled-password --no-create-home {server}")
check_call("adduser --uid {worker_ID} --ingroup {group} --gecos '' "
"--disabled-password --no-create-home {worker}")
except subprocess.CalledProcessError:
try:
g = grp.getgrnam(users["group"])
s = pwd.getpwnam(users["server"])
w = pwd.getpwnam(users["worker"])
if g.gr_gid != users["GID"] or \
s.pw_uid != users["server_ID"] or s.pw_gid != users["GID"] or \
w.pw_uid != users["worker_ID"] or w.pw_gid != users["GID"]:
raise KeyError
except KeyError:
raise RuntimeError("failed to create accounts on host")
def setup_container_users():
r"""
Create container users and setup SSH access.
"""
log.info("setting up users in the containter")
check_call("addgroup --gid {GID} {group}")
check_call("adduser --uid {server_ID} --ingroup {group} --gecos '' "
"--disabled-password {server}")
check_call("adduser --uid {worker_ID} --ingroup {group} --gecos '' "
"--disabled-password {worker}")
shome = os.path.join("/home", users["server"])
os.chmod(shome, stat.S_IRWXU |
stat.S_IRGRP | stat.S_IXGRP |
stat.S_IROTH | stat.S_IXOTH)
os.chdir(shome)
os.setegid(users["GID"])
os.seteuid(users["server_ID"])
os.mkdir(".ssh", 0o700)
check_call("ssh-keygen -t ed25519 -q -N '' -f .ssh/id_ed25519")
whome = os.path.join("/home", users["worker"])
os.chdir(whome)
os.setuid(0)
os.seteuid(users["worker_ID"])
os.mkdir(".cache", 0o700)
os.mkdir(".sage")
os.mkdir(".ssh", 0o700)
files_to_lock = [
".cache/pip",
".sage/local",
".ssh",
".bash_logout",
".bash_profile",
".bashrc",
".profile",
]
check_call(" ".join(["touch"] + files_to_lock))
os.setuid(0)
shutil.copy2(os.path.join(shome, ".ssh/id_ed25519.pub"),
".ssh/authorized_keys")
os.chown(".ssh/authorized_keys", users["worker_ID"], users["GID"])
# Get the localhost in the known_hosts file.
check_call("su -l {server} -c "
"'ssh -q -oStrictHostKeyChecking=no {worker}@localhost whoami'")
for f in files_to_lock:
check_call("chattr -R +i " + f)
def become_server():
r"""
Adjust UID etc. to have files created as the server user.
"""
os.setgid(users["GID"])
os.setuid(users["server_ID"])
os.environ["HOME"] = os.path.join("/home", users["server"])
os.chdir(os.environ["HOME"])
os.environ.setdefault("MAKE", "make -j{}".format(os.cpu_count()))
def install_sage():
r"""
Install Sage.
"""
become_server()
shutil.move("github/sage", ".")
os.chdir("sage")
log.info("compiling Sage")
check_call("./bootstrap")
check_call("./configure")
check_call("make")
# FIXME: permissions are wrong in Sage 8.9.
os.chmod("local/share/jmol", stat.S_IRWXU | stat.S_IRGRP | stat.S_IXGRP
| stat.S_IROTH | stat.S_IXOTH)
communicate("./sage", r"""
# make appropriate octave directory
octave.eval('1+2')
quit
""")
log.info("successfully compiled Sage")
def install_packages():
r"""
Assuming Sage is already installed, install optional packages.
"""
become_server()
os.chdir("sage")
log.info("installing optional Sage packages")
for package in sage_optional_packages:
check_call("./sage -i -y {}".format(package))
log.info("installing pip packages")
check_call("./sage -pip install --upgrade pip")
for package in python_packages:
check_call("./sage -pip install {}".format(package))
os.chdir("..")
def install_sagecell():
r"""
Install SageCell, assuming Sage and other packages are already installed.
"""
become_server()
log.info("compiling SageCell")
shutil.move("github/sagecell", ".")
shutil.rmtree("github")
os.chdir("sagecell")
with open("templates/provider.html", "w", encoding="utf-8") as f:
f.write(provider_html)
check_call("../sage/sage -sh -c 'make -B'")
log.info("successfully compiled SageCell")
def install_config_files():
r"""
Install container's config files, adjusting names inside.
"""
log.info("copying configuration files")
os.chdir(os.path.join("/home", users["server"],
"sagecell/contrib/vm/compute_node"))
def adjust_names(file):
with open(file) as f:
content = f.read()
for key, value in users.items():
content = content.replace("{%s}" % key, str(value))
with open(file, "w") as f:
f.write(content)
adjust_names(shutil.copy("config.py", "../../.."))
for root, _, files in os.walk("."):
if root == ".":
continue
for file in files:
name = os.path.join(root, file)
adjust_names(shutil.copy(name, name[1:]))
check_call("systemctl enable sagecell")
class SCLXC(object):
r"""
Wrapper for lxc.Container automatically performing prerequisite operations.
"""
def __init__(self, name):
self.name = name
self.c = lxc.Container(self.name)
def clone(self, clone_name, autostart=False, update=False):
r"""
Clone self, create a base container and destroy old clone if necessary.
"""
if not self.is_defined():
self.create()
if update:
self.update()
self.shutdown()
SCLXC(clone_name).destroy()
log.info("cloning %s to %s", self.name, clone_name)
if not self.c.clone(clone_name, flags=lxc.LXC_CLONE_SNAPSHOT):
raise RuntimeError("failed to clone " + self.name)
clone = SCLXC(clone_name)
if autostart:
clone.c.set_config_item("lxc.start.auto", "1")
clone.c.set_config_item("lxc.start.delay", str(start_delay))
clone.c.set_config_item("lxc.net.0.hwaddr",
"02:00:" + ":".join(["%02x" % random.randint(0, 255) for _ in range(4)]))
clone.c.save_config()
logdir = clone.c.get_config_item("lxc.rootfs.path") + "/var/log/"
for logfile in ["sagecell.log", "sagecell-console.log"]:
if os.path.exists(logdir + logfile):
os.remove(logdir + logfile)
return clone
def create(self):
r"""
Create a base contrainer, destroy old one if necessary.
"""
self.destroy()
log.info("creating %s", self.name)
# Try to automatically pick up proxy from host
os.environ["HTTP_PROXY"] = "apt"
if not self.c.create(
"download", 0,
{"dist": "ubuntu", "release": "noble", "arch": "amd64"},
"btrfs"):
raise RuntimeError("failed to create " + self.name)
os.environ.pop("HTTP_PROXY")
self.update()
# Need to preseed or there will be a dialog
self.inside(communicate, "/usr/bin/debconf-set-selections",
"tmpreaper tmpreaper/readsecurity note")
log.info("installing packages")
self.inside("apt install -y " + " ".join(system_packages))
# Relies on perl, so has to be after package installation
self.inside("/usr/sbin/deluser ubuntu --remove-home")
log.info("installing R packages")
for package in R_packages:
self.inside(f"""Rscript -e 'install.packages("{package}")'""")
self.inside(f"""Rscript -e 'library("{package}")'""")
def destroy(self):
r"""
Stop and destroy self if it exists.
"""
if self.c.defined:
log.info("destroying %s", self.name)
if self.c.running and not self.c.stop():
raise RuntimeError("failed to stop " + self.name)
if not self.c.destroy():
raise RuntimeError("failed to destroy " + self.name)
self.c = lxc.Container(self.name)
else:
log.debug("not destroying %s since it is not defined", self.name)
def inside(self, command, *args):
r"""
Run a function or a system command inside the container.
"""
self.start()
if isinstance(command, str):
command = command.format_map(users)
log.debug("executing '%s' in %s", command, self.name)
if self.c.attach_wait(lxc.attach_run_command,
shlex.split(command)):
raise RuntimeError("failed to execute '{}'".format(command))
else:
args = [arg.format_map(users) if isinstance(arg, str) else arg
for arg in args]
def wrapper():
command(*args)
os.sys.exit() # Otherwise attach_wait returns -1
log.debug("executing %s with arguments %s in %s",
command, args, self.name)
if self.c.attach_wait(wrapper):
raise RuntimeError("failed to execute {} with arguments {}"
.format(command, args))
def prepare_for_sagecell(self, keeprepos=False):
r"""
Set up everything necessary for SageCell installation.
INPUT:
- ``keeprepos`` -- if ``True``, GitHub repositories will NOT be updated
and set to proper state (useful for development).
"""
create_host_users()
self.inside(setup_container_users)
# FIXME: work with temp folders properly
self.inside(os.mkdir, "/tmp/sagecell", 0o730)
self.inside(os.chown, "/tmp/sagecell",
users["server_ID"], users["GID"])
self.inside(os.chmod, "/tmp/sagecell", stat.S_ISGID)
# Copy repositories into container
if not keeprepos:
update_repositories()
log.info("uploading repositories to %s", self.name)
root = self.c.get_config_item("lxc.rootfs.path")
home = os.path.join(root, "home", users["server"])
shutil.copytree("github", os.path.join(home, "github"), symlinks=True)
self.inside("chown -R {server}:{group} /home/{server}/github")
dot_cache = os.path.join(home, ".cache")
try:
shutil.copytree("dot_cache", dot_cache, symlinks=True)
self.inside("chown -R {server}:{group} /home/{server}/.cache")
except FileNotFoundError:
pass
self.inside(install_sage)
self.inside(install_packages)
# Remove old versions of packages
upstream = os.path.join(home, "sage/upstream")
packages = dict()
for f in os.listdir(upstream):
filename = os.path.join(upstream, f)
name = f.split("-", 1)[0]
if name not in packages:
packages[name] = []
packages[name].append((os.stat(filename).st_mtime, filename))
for package in packages.values():
package.sort()
package.pop()
for _, filename in package:
os.remove(filename)
try:
shutil.rmtree("github/sage/upstream")
except FileNotFoundError:
pass
shutil.move(upstream, "github/sage/upstream")
try:
shutil.rmtree("dot_cache")
except FileNotFoundError:
pass
shutil.copytree(dot_cache, "dot_cache", symlinks=True)
def install_sagecell(self):
r"""
Set up SageCell to run on startup.
"""
self.inside(install_sagecell)
self.inside(install_config_files)
self.c.set_config_item("lxc.cgroup.memory.limit_in_bytes", "8G")
self.c.save_config()
self.shutdown()
# Let first-time tasks to run and complete.
self.start()
timer_delay(start_delay)
def ip(self):
self.start()
return self.c.get_ips()[0]
def is_defined(self):
return self.c.defined
def save_logs(self):
stamp_length = len("2014-12-28 15:00:02,315")
root = self.c.get_config_item("lxc.rootfs.path")
logdir = os.path.join(root, "var", "log")
logname = "sagecell.log"
fullname = os.path.join(logdir, logname)
if not os.path.exists(fullname):
return
with open(fullname, "rb") as f:
start = f.read(stamp_length).decode()
f.seek(0, os.SEEK_END)
f.seek(max(f.tell() - 2**16, 0))
end = f.readlines()[-1][:stamp_length].decode()
archname = "container_logs/%s to %s on %s" % (start, end, self.name)
if not os.path.exists("container_logs"):
os.mkdir("container_logs")
log.info("saving %s", archname)
shutil.make_archive(archname, "bztar", logdir, logname)
def shutdown(self):
if self.c.running and not self.c.shutdown(timeout):
raise RuntimeError("failed to shutdown " + self.name)