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zulip/tools/lib/provision.py

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#!/usr/bin/env python3
import os
import sys
import logging
import argparse
import platform
import subprocess
import glob
import hashlib
import traceback
os.environ["PYTHONUNBUFFERED"] = "y"
ZULIP_PATH = os.path.dirname(os.path.dirname(os.path.dirname(os.path.abspath(__file__))))
sys.path.append(ZULIP_PATH)
from scripts.lib.zulip_tools import run, subprocess_text_output, OKBLUE, ENDC, WARNING, \
get_dev_uuid_var_path, FAIL, parse_lsb_release, file_or_package_hash_updated
from scripts.lib.setup_venv import (
setup_virtualenv, VENV_DEPENDENCIES, REDHAT_VENV_DEPENDENCIES,
THUMBOR_VENV_DEPENDENCIES, YUM_THUMBOR_VENV_DEPENDENCIES,
FEDORA_VENV_DEPENDENCIES
)
from scripts.lib.node_cache import setup_node_modules, NODE_MODULES_CACHE_PATH
from version import PROVISION_VERSION
if False:
# See https://zulip.readthedocs.io/en/latest/testing/mypy.html#mypy-in-production-scripts
from typing import Any, List
from tools.setup.generate_zulip_bots_static_files import generate_zulip_bots_static_files
SUPPORTED_PLATFORMS = {
"Ubuntu": [
"trusty",
"xenial",
"bionic",
],
"Debian": [
"stretch",
],
"CentOS": [
"centos7",
],
"Fedora": [
"fedora29",
],
"RedHat": [
"rhel7",
]
}
VENV_PATH = "/srv/zulip-py3-venv"
VAR_DIR_PATH = os.path.join(ZULIP_PATH, 'var')
LOG_DIR_PATH = os.path.join(VAR_DIR_PATH, 'log')
UPLOAD_DIR_PATH = os.path.join(VAR_DIR_PATH, 'uploads')
TEST_UPLOAD_DIR_PATH = os.path.join(VAR_DIR_PATH, 'test_uploads')
COVERAGE_DIR_PATH = os.path.join(VAR_DIR_PATH, 'coverage')
NODE_TEST_COVERAGE_DIR_PATH = os.path.join(VAR_DIR_PATH, 'node-coverage')
is_travis = 'TRAVIS' in os.environ
is_circleci = 'CIRCLECI' in os.environ
# TODO: De-duplicate this with emoji_dump.py
EMOJI_CACHE_PATH = "/srv/zulip-emoji-cache"
if is_travis:
# In Travis CI, we don't have root access
EMOJI_CACHE_PATH = "/home/travis/zulip-emoji-cache"
if not os.path.exists(os.path.join(ZULIP_PATH, ".git")):
print(FAIL + "Error: No Zulip git repository present!" + ENDC)
print("To setup the Zulip development environment, you should clone the code")
print("from GitHub, rather than using a Zulip production release tarball.")
sys.exit(1)
# Check the RAM on the user's system, and throw an effort if <1.5GB.
# This avoids users getting segfaults running `pip install` that are
# generally more annoying to debug.
with open("/proc/meminfo") as meminfo:
ram_size = meminfo.readlines()[0].strip().split(" ")[-2]
ram_gb = float(ram_size) / 1024.0 / 1024.0
if ram_gb < 1.5:
print("You have insufficient RAM (%s GB) to run the Zulip development environment." % (
round(ram_gb, 2),))
print("We recommend at least 2 GB of RAM, and require at least 1.5 GB.")
sys.exit(1)
try:
UUID_VAR_PATH = get_dev_uuid_var_path(create_if_missing=True)
os.makedirs(UUID_VAR_PATH, exist_ok=True)
if os.path.exists(os.path.join(VAR_DIR_PATH, 'zulip-test-symlink')):
os.remove(os.path.join(VAR_DIR_PATH, 'zulip-test-symlink'))
os.symlink(
os.path.join(ZULIP_PATH, 'README.md'),
os.path.join(VAR_DIR_PATH, 'zulip-test-symlink')
)
os.remove(os.path.join(VAR_DIR_PATH, 'zulip-test-symlink'))
except OSError:
print(FAIL + "Error: Unable to create symlinks."
"Make sure you have permission to create symbolic links." + ENDC)
print("See this page for more information:")
print(" https://zulip.readthedocs.io/en/latest/development/setup-vagrant.html#os-symlink-error")
sys.exit(1)
if platform.architecture()[0] == '64bit':
arch = 'amd64'
elif platform.architecture()[0] == '32bit':
arch = "i386"
else:
logging.critical("Only x86 is supported;"
"ping zulip-devel@googlegroups.com if you want another architecture.")
sys.exit(1)
# Ideally we wouldn't need to install a dependency here, before we
# know the codename.
is_rhel_based = os.path.exists("/etc/redhat-release")
if (not is_rhel_based) and (not os.path.exists("/usr/bin/lsb_release")):
subprocess.check_call(["sudo", "apt-get", "install", "-y", "lsb-release"])
distro_info = parse_lsb_release()
vendor = distro_info['DISTRIB_ID']
codename = distro_info['DISTRIB_CODENAME']
family = distro_info['DISTRIB_FAMILY']
if not (vendor in SUPPORTED_PLATFORMS and codename in SUPPORTED_PLATFORMS[vendor]):
logging.critical("Unsupported platform: {} {}".format(vendor, codename))
sys.exit(1)
POSTGRES_VERSION_MAP = {
"stretch": "9.6",
"trusty": "9.3",
"xenial": "9.5",
"bionic": "10",
"centos7": "10",
"fedora29": "10",
"rhel7": "10",
}
POSTGRES_VERSION = POSTGRES_VERSION_MAP[codename]
COMMON_DEPENDENCIES = [
"closure-compiler",
"memcached",
"rabbitmq-server",
"supervisor",
"git",
"wget",
"ca-certificates", # Explicit dependency in case e.g. wget is already installed
"puppet", # Used by lint (`puppet parser validate`)
"gettext", # Used by makemessages i18n
"curl", # Used for fetching PhantomJS as wget occasionally fails on redirects
"moreutils", # Used for sponge command
]
UBUNTU_COMMON_APT_DEPENDENCIES = COMMON_DEPENDENCIES + [
"redis-server",
"hunspell-en-us",
"yui-compressor",
"puppet-lint",
"netcat", # Used for flushing memcached
"libfontconfig1", # Required by phantomjs
] + VENV_DEPENDENCIES + THUMBOR_VENV_DEPENDENCIES
COMMON_YUM_DEPENDENCIES = COMMON_DEPENDENCIES + [
"redis",
"hunspell-en-US",
"yuicompressor",
"rubygem-puppet-lint",
"nmap-ncat",
"fontconfig", # phantomjs dependencies from here until libstdc++
"freetype",
"freetype-devel",
"fontconfig-devel",
"libstdc++"
] + YUM_THUMBOR_VENV_DEPENDENCIES
if vendor in ["Ubuntu", "Debian"]:
SYSTEM_DEPENDENCIES = UBUNTU_COMMON_APT_DEPENDENCIES + [
pkg.format(POSTGRES_VERSION) for pkg in [
"postgresql-{0}",
"postgresql-{0}-tsearch-extras",
"postgresql-{0}-pgroonga",
]
]
elif vendor in ["CentOS", "RedHat"]:
SYSTEM_DEPENDENCIES = COMMON_YUM_DEPENDENCIES + [
pkg.format(POSTGRES_VERSION) for pkg in [
"postgresql{0}-server",
"postgresql{0}",
"postgresql{0}-devel",
"postgresql{0}-pgroonga",
]
] + REDHAT_VENV_DEPENDENCIES
elif vendor == "Fedora":
SYSTEM_DEPENDENCIES = COMMON_YUM_DEPENDENCIES + [
pkg.format(POSTGRES_VERSION) for pkg in [
"postgresql{0}-server",
"postgresql{0}",
"postgresql{0}-devel",
]
] + FEDORA_VENV_DEPENDENCIES
if family == 'redhat':
TSEARCH_STOPWORDS_PATH = "/usr/pgsql-%s/share/tsearch_data/" % (POSTGRES_VERSION,)
else:
TSEARCH_STOPWORDS_PATH = "/usr/share/postgresql/%s/tsearch_data/" % (POSTGRES_VERSION,)
REPO_STOPWORDS_PATH = os.path.join(
ZULIP_PATH,
"puppet",
"zulip",
"files",
"postgresql",
"zulip_english.stop",
)
user_id = os.getuid()
def setup_shell_profile(shell_profile):
# type: (str) -> None
shell_profile_path = os.path.expanduser(shell_profile)
def write_command(command):
# type: (str) -> None
if os.path.exists(shell_profile_path):
with open(shell_profile_path, 'r') as shell_profile_file:
lines = [line.strip() for line in shell_profile_file.readlines()]
if command not in lines:
with open(shell_profile_path, 'a+') as shell_profile_file:
shell_profile_file.writelines(command + '\n')
else:
with open(shell_profile_path, 'w') as shell_profile_file:
shell_profile_file.writelines(command + '\n')
source_activate_command = "source " + os.path.join(VENV_PATH, "bin", "activate")
write_command(source_activate_command)
write_command('cd /srv/zulip')
def install_system_deps(retry=False):
# type: (bool) -> None
# By doing list -> set -> list conversion, we remove duplicates.
deps_to_install = list(set(SYSTEM_DEPENDENCIES))
if family == 'redhat':
install_yum_deps(deps_to_install, retry=retry)
return
if vendor in ["Debian", "Ubuntu"]:
install_apt_deps(deps_to_install, retry=retry)
return
raise AssertionError("Invalid vendor")
def install_apt_deps(deps_to_install, retry=False):
# type: (List[str], bool) -> None
if retry:
print(WARNING + "`apt-get -y install` failed while installing dependencies; retrying..." + ENDC)
# Since a common failure mode is for the caching in
# `setup-apt-repo` to optimize the fast code path to skip
# running `apt-get update` when the target apt repository
# is out of date, we run it explicitly here so that we
# recover automatically.
run(['sudo', 'apt-get', 'update'])
# setup-apt-repo does an `apt-get update`
run(["sudo", "./scripts/lib/setup-apt-repo"])
run(["sudo", "apt-get", "-y", "install", "--no-install-recommends"] + deps_to_install)
def install_yum_deps(deps_to_install, retry=False):
# type: (List[str], bool) -> None
print(WARNING + "RedHat support is still experimental.")
run(["sudo", "./scripts/lib/setup-yum-repo"])
# Hack specific to unregistered RHEL system. The moreutils
# package requires a perl module package, which isn't available in
# the unregistered RHEL repositories.
#
# Error: Package: moreutils-0.49-2.el7.x86_64 (epel)
# Requires: perl(IPC::Run)
yum_extra_flags = [] # type: List[str]
if vendor == 'RedHat':
exitcode, subs_status = subprocess.getstatusoutput("sudo subscription-manager status")
if exitcode == 1:
# TODO this might overkill since `subscription-manager` is already
# called in setup-yum-repo
if 'Status' in subs_status:
# The output is well-formed
yum_extra_flags = ["--skip-broken"]
else:
print("Unrecognized output. `subscription-manager` might not be available")
run(["sudo", "yum", "install", "-y"] + yum_extra_flags + deps_to_install)
if vendor in ["CentOS", "RedHat"]:
# This is how a pip3 is installed to /usr/bin in CentOS/RHEL
# for python35 and later.
run(["sudo", "python36", "-m", "ensurepip"])
# `python36` is not aliased to `python3` by default
run(["sudo", "ln", "-nsf", "/usr/bin/python36", "/usr/bin/python3"])
postgres_dir = 'pgsql-%s' % (POSTGRES_VERSION,)
for cmd in ['pg_config', 'pg_isready', 'psql']:
# Our tooling expects these postgres scripts to be at
# well-known paths. There's an argument for eventually
# making our tooling auto-detect, but this is simpler.
run(["sudo", "ln", "-nsf", "/usr/%s/bin/%s" % (postgres_dir, cmd),
"/usr/bin/%s" % (cmd,)])
# Compile tsearch-extras from scratch, since we maintain the
# package and haven't built an RPM package for it.
run(["sudo", "./scripts/lib/build-tsearch-extras"])
if vendor == "Fedora":
# Compile PGroonga from scratch, since pgroonga upstream
# doesn't provide Fedora packages.
run(["sudo", "./scripts/lib/build-pgroonga"])
# From here, we do the first-time setup/initialization for the postgres database.
pg_datadir = "/var/lib/pgsql/%s/data" % (POSTGRES_VERSION,)
pg_hba_conf = os.path.join(pg_datadir, "pg_hba.conf")
# We can't just check if the file exists with os.path, since the
# current user likely doesn't have permission to read the
# pg_datadir directory.
if subprocess.call(["sudo", "test", "-e", pg_hba_conf]) == 0:
# Skip setup if it has been applied previously
return
run(["sudo", "-H", "/usr/%s/bin/postgresql-%s-setup" % (postgres_dir, POSTGRES_VERSION), "initdb"])
# Use vendored pg_hba.conf, which enables password authentication.
run(["sudo", "cp", "-a", "puppet/zulip/files/postgresql/centos_pg_hba.conf", pg_hba_conf])
# Later steps will ensure postgres is started
def main(options):
# type: (Any) -> int
# yarn and management commands expect to be run from the root of the
# project.
os.chdir(ZULIP_PATH)
# hash the apt dependencies
sha_sum = hashlib.sha1()
for apt_depedency in SYSTEM_DEPENDENCIES:
sha_sum.update(apt_depedency.encode('utf8'))
if vendor in ["Ubuntu", "Debian"]:
sha_sum.update(open('scripts/lib/setup-apt-repo', 'rb').read())
else:
# hash the content of setup-yum-repo and build-*
sha_sum.update(open('scripts/lib/setup-yum-repo', 'rb').read())
build_paths = glob.glob("scripts/lib/build-")
for bp in build_paths:
sha_sum.update(open(bp, 'rb').read())
new_apt_dependencies_hash = sha_sum.hexdigest()
last_apt_dependencies_hash = None
apt_hash_file_path = os.path.join(UUID_VAR_PATH, "apt_dependencies_hash")
with open(apt_hash_file_path, 'a+') as hash_file:
hash_file.seek(0)
last_apt_dependencies_hash = hash_file.read()
if (new_apt_dependencies_hash != last_apt_dependencies_hash):
try:
install_system_deps()
except subprocess.CalledProcessError:
# Might be a failure due to network connection issues. Retrying...
install_system_deps(retry=True)
with open(apt_hash_file_path, 'w') as hash_file:
hash_file.write(new_apt_dependencies_hash)
else:
print("No changes to apt dependencies, so skipping apt operations.")
# Here we install node.
proxy_env = [
"env",
"http_proxy=" + os.environ.get("http_proxy", ""),
"https_proxy=" + os.environ.get("https_proxy", ""),
"no_proxy=" + os.environ.get("no_proxy", ""),
]
run(["sudo", "-H"] + proxy_env + ["scripts/lib/install-node"])
# This is a wrapper around `yarn`, which we run last since
# it can often fail due to network issues beyond our control.
try:
# Hack: We remove `node_modules` as root to work around an
# issue with the symlinks being improperly owned by root.
if os.path.islink("node_modules"):
run(["sudo", "rm", "-f", "node_modules"])
run(["sudo", "mkdir", "-p", NODE_MODULES_CACHE_PATH])
run(["sudo", "chown", "%s:%s" % (user_id, user_id), NODE_MODULES_CACHE_PATH])
setup_node_modules(prefer_offline=True)
except subprocess.CalledProcessError:
print(WARNING + "`yarn install` failed; retrying..." + ENDC)
setup_node_modules()
# Install shellcheck.
run(["sudo", "scripts/lib/install-shellcheck"])
# Import tools/setup_venv.py instead of running it so that we get an
# activated virtualenv for the rest of the provisioning process.
from tools.setup import setup_venvs
setup_venvs.main()
setup_shell_profile('~/.bash_profile')
setup_shell_profile('~/.zprofile')
run(["sudo", "cp", REPO_STOPWORDS_PATH, TSEARCH_STOPWORDS_PATH])
# create log directory `zulip/var/log`
os.makedirs(LOG_DIR_PATH, exist_ok=True)
# create upload directory `var/uploads`
os.makedirs(UPLOAD_DIR_PATH, exist_ok=True)
# create test upload directory `var/test_upload`
os.makedirs(TEST_UPLOAD_DIR_PATH, exist_ok=True)
# create coverage directory `var/coverage`
os.makedirs(COVERAGE_DIR_PATH, exist_ok=True)
# create linecoverage directory `var/node-coverage`
os.makedirs(NODE_TEST_COVERAGE_DIR_PATH, exist_ok=True)
# The `build_emoji` script requires `emoji-datasource` package
# which we install via npm; thus this step is after installing npm
# packages.
if not os.path.isdir(EMOJI_CACHE_PATH):
run(["sudo", "mkdir", EMOJI_CACHE_PATH])
run(["sudo", "chown", "%s:%s" % (user_id, user_id), EMOJI_CACHE_PATH])
run(["tools/setup/emoji/build_emoji"])
# copy over static files from the zulip_bots package
generate_zulip_bots_static_files()
webfont_paths = ["tools/setup/generate-custom-icon-webfont", "static/icons/fonts/template.hbs"]
webfont_paths += glob.glob('static/assets/icons/*')
if file_or_package_hash_updated(webfont_paths, "webfont_files_hash", options.is_force):
run(["tools/setup/generate-custom-icon-webfont"])
else:
print("No need to run `tools/setup/generate-custom-icon-webfont`.")
build_pygments_data_paths = ["tools/setup/build_pygments_data", "tools/setup/lang.json"]
from pygments import __version__ as pygments_version
if file_or_package_hash_updated(build_pygments_data_paths, "build_pygments_data_hash", options.is_force,
[pygments_version]):
run(["tools/setup/build_pygments_data"])
else:
print("No need to run `tools/setup/build_pygments_data`.")
run(["scripts/setup/generate_secrets.py", "--development"])
update_authors_json_paths = ["tools/update-authors-json", "zerver/tests/fixtures/authors.json"]
if file_or_package_hash_updated(update_authors_json_paths, "update_authors_json_hash", options.is_force):
run(["tools/update-authors-json", "--use-fixture"])
else:
print("No need to run `tools/update-authors-json`.")
email_source_paths = ["tools/inline-email-css", "templates/zerver/emails/email.css"]
email_source_paths += glob.glob('templates/zerver/emails/*.source.html')
if file_or_package_hash_updated(email_source_paths, "last_email_source_files_hash", options.is_force):
run(["tools/inline-email-css"])
else:
print("No need to run `tools/inline-email-css`.")
if is_circleci or (is_travis and not options.is_production_travis):
run(["sudo", "service", "rabbitmq-server", "restart"])
run(["sudo", "service", "redis-server", "restart"])
run(["sudo", "service", "memcached", "restart"])
run(["sudo", "service", "postgresql", "restart"])
elif family == 'redhat':
for service in ["postgresql-%s" % (POSTGRES_VERSION,), "rabbitmq-server", "memcached", "redis"]:
run(["sudo", "-H", "systemctl", "enable", service])
run(["sudo", "-H", "systemctl", "start", service])
elif options.is_docker:
run(["sudo", "service", "rabbitmq-server", "restart"])
run(["sudo", "pg_dropcluster", "--stop", POSTGRES_VERSION, "main"])
run(["sudo", "pg_createcluster", "-e", "utf8", "--start", POSTGRES_VERSION, "main"])
run(["sudo", "service", "redis-server", "restart"])
run(["sudo", "service", "memcached", "restart"])
if not options.is_production_travis:
# The following block is skipped for the production Travis
# suite, because that suite doesn't make use of these elements
# of the development environment (it just uses the development
# environment to build a release tarball).
# Need to set up Django before using template_database_status
os.environ.setdefault("DJANGO_SETTINGS_MODULE", "zproject.settings")
import django
django.setup()
from zerver.lib.test_fixtures import template_database_status, run_db_migrations
try:
from zerver.lib.queue import SimpleQueueClient
SimpleQueueClient()
rabbitmq_is_configured = True
except Exception:
rabbitmq_is_configured = False
if options.is_force or not rabbitmq_is_configured:
run(["scripts/setup/configure-rabbitmq"])
else:
print("RabbitMQ is already configured.")
migration_status_path = os.path.join(UUID_VAR_PATH, "migration_status_dev")
dev_template_db_status = template_database_status(
migration_status=migration_status_path,
settings="zproject.settings",
database_name="zulip",
)
if options.is_force or dev_template_db_status == 'needs_rebuild':
run(["tools/setup/postgres-init-dev-db"])
run(["tools/do-destroy-rebuild-database"])
elif dev_template_db_status == 'run_migrations':
run_db_migrations('dev')
elif dev_template_db_status == 'current':
print("No need to regenerate the dev DB.")
test_template_db_status = template_database_status()
if options.is_force or test_template_db_status == 'needs_rebuild':
run(["tools/setup/postgres-init-test-db"])
run(["tools/do-destroy-rebuild-test-database"])
elif test_template_db_status == 'run_migrations':
run_db_migrations('test')
elif test_template_db_status == 'current':
print("No need to regenerate the test DB.")
# Consider updating generated translations data: both `.mo`
# files and `language-options.json`.
paths = ['zerver/management/commands/compilemessages.py']
paths += glob.glob('static/locale/*/LC_MESSAGES/*.po')
paths += glob.glob('static/locale/*/translations.json')
if file_or_package_hash_updated(paths, "last_compilemessages_hash", options.is_force):
run(["./manage.py", "compilemessages"])
else:
print("No need to run `manage.py compilemessages`.")
run(["scripts/lib/clean-unused-caches"])
version_file = os.path.join(UUID_VAR_PATH, 'provision_version')
print('writing to %s\n' % (version_file,))
open(version_file, 'w').write(PROVISION_VERSION + '\n')
print()
print(OKBLUE + "Zulip development environment setup succeeded!" + ENDC)
return 0
if __name__ == "__main__":
description = ("Provision script to install Zulip")
parser = argparse.ArgumentParser(description=description)
parser.add_argument('--force', action='store_true', dest='is_force',
default=False,
help="Ignore all provisioning optimizations.")
parser.add_argument('--production-travis', action='store_true',
dest='is_production_travis',
default=False,
help="Provision for Travis with production settings.")
parser.add_argument('--docker', action='store_true',
dest='is_docker',
default=False,
help="Provision for Docker.")
options = parser.parse_args()
sys.exit(main(options))
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