A collection of classes and commands for automated command line scripting using Python.
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# Imports
from commonkit import split_csv
from ..commands import Command, Template
from .common import COMMON_MAPPINGS
from .django import DJANGO_MAPPINGS
from .pgsql import PGSQL_MAPPINGS
from .posix import POSIX_MAPPINGS, Function
# Exports
__all__ = (
"MAPPINGS",
"apache",
"apache_reload",
"apache_restart",
"apache_start",
"apache_stop",
"apache_test",
"command_exists",
"service_reload",
"service_restart",
"service_start",
"service_stop",
"system",
"system_install",
"system_reboot",
"system_update",
"system_upgrade",
"system_uninstall",
"template",
"user",
"Function",
)
def command_exists(name):
"""Indicates whether a given command exists in this overaly.
:param name: The name of the command.
:type name: str
:rtype: bool
"""
return name in MAPPINGS
def apache(op, **kwargs):
"""Execute an Apache-related command.
- op (str): The operation to perform; reload, restart, start, stop, test.
"""
if op == "reload":
return apache_reload(**kwargs)
elif op == "restart":
return apache_restart(**kwargs)
elif op == "start":
return apache_start(**kwargs)
elif op == "stop":
return apache_stop(**kwargs)
elif op == "test":
return apache_test(**kwargs)
else:
raise NameError("Unrecognized or unsupported apache operation: %s" % op)
def apache_reload(**kwargs):
kwargs.setdefault("comment", "reload apache")
kwargs.setdefault("register", "apache_reloaded")
return Command("apachectl –k reload", **kwargs)
def apache_restart(**kwargs):
kwargs.setdefault("comment", "restart apache")
kwargs.setdefault("register", "apache_restarted")
return Command("apachectl –k restart", **kwargs)
def apache_start(**kwargs):
kwargs.setdefault("comment", "start apache")
kwargs.setdefault("register", "apache_started")
return Command("apachectl –k start", **kwargs)
def apache_stop(**kwargs):
kwargs.setdefault("comment", "stop apache")
return Command("apachectl –k stop", **kwargs)
def apache_test(**kwargs):
kwargs.setdefault("comment", "check apache configuration")
kwargs.setdefault("register", "apache_checks_out")
return Command("apachectl configtest", **kwargs)
def service_reload(name, **kwargs):
"""Reload a service.
- name (str): The service name.
"""
kwargs.setdefault("comment", "reload %s service" % name)
kwargs.setdefault("register", "%s_reloaded" % name)
return Command("systemctl reload %s" % name, **kwargs)
def service_restart(name, **kwargs):
"""Restart a service.
- name (str): The service name.
"""
kwargs.setdefault("comment", "restart %s service" % name)
kwargs.setdefault("register", "%s_restarted" % name)
return Command("ssystemctl restart %s" % name, **kwargs)
def service_start(name, **kwargs):
"""Start a service.
- name (str): The service name.
"""
kwargs.setdefault("comment", "start %s service" % name)
kwargs.setdefault("register", "%s_started" % name)
return Command("systemctl start %s" % name, **kwargs)
def service_stop(name, **kwargs):
"""Stop a service.
- name (str): The service name.
"""
kwargs.setdefault("comment", "stop %s service" % name)
kwargs.setdefault("register", "%s_stopped" % name)
return Command("systemctl stop %s" % name, **kwargs)
def system(op, **kwargs):
"""Perform a system operation.
- op (str): The operation to perform; reboot, update, upgrade.
"""
if op == "reboot":
return system_reboot(**kwargs)
elif op == "update":
return system_update(**kwargs)
elif op == "upgrade":
return system_upgrade(**kwargs)
else:
raise NameError("Unrecognized or unsupported system operation: %s" % op)
def system_install(name, **kwargs):
"""Install a system-level package.
- name (str): The name of the package to install.
"""
kwargs.setdefault("comment", "install system package %s" % name)
return Command("yum install -y %s" % name, **kwargs)
def system_reboot(**kwargs):
kwargs.setdefault("comment", "reboot the system")
return Command("reboot", **kwargs)
def system_uninstall(name, **kwargs):
"""Uninstall a system-level package.
- name (str): The name of the package to uninstall.
"""
kwargs.setdefault("comment", "remove system package %s" % name)
return Command("yum remove -y %s" % name, **kwargs)
def system_update(**kwargs):
kwargs.setdefault("comment", "update system package info")
return Command("yum check-update", **kwargs)
def system_upgrade(**kwargs):
kwargs.setdefault("comment", "upgrade the system")
return Command("yum update -y", **kwargs)
def template(source, target, backup=True, parser=None, **kwargs):
"""Create a file from a template.
- source (str): The path to the template file.
- target (str): The path to where the new file should be created.
- backup (bool): Indicates whether a backup should be made if the target file already exists.
- parser (str): The parser to use ``jinja`` (the default) or ``simple``.
"""
return Template(source, target, backup=backup, parser=parser, **kwargs)
def user(name, groups=None, home=None, op="add", password=None, **kwargs):
"""Create or remove a user.
- name (str): The user name.
- groups (str | list): A list of groups to which the user should belong.
- home (str): The path to the user's home directory.
- op (str); The operation to perform; ``add`` or ``remove``.
- password (str): The user's password. (NOT IMPLEMENTED)
"""
if op == "add":
kwargs.setdefault("comment", "create a user named %s" % name)
commands = list()
a = list()
a.append('adduser %s' % name)
if home is not None:
a.append("--home %s" % home)
commands.append(Command(" ".join(a), **kwargs))
if type(groups) is str:
groups = split_csv(groups, smart=False)
if type(groups) in [list, tuple]:
for group in groups:
commands.append(Command("gpasswd -a %s %s" % (name, group), **kwargs))
a = list()
for c in commands:
a.append(c.get_statement(suppress_comment=True))
return Command("\n".join(a), **kwargs)
elif op == "remove":
kwargs.setdefault("comment", "remove a user named %s" % name)
return Command("userdel -r %s" % name, **kwargs)
else:
raise NameError("Unsupported or unrecognized operation: %s" % op)
MAPPINGS = {
'apache': apache,
'install': system_install,
'reboot': system_reboot,
'reload': service_reload,
'restart': service_restart,
'start': service_start,
'stop': service_stop,
'system': system,
'template': template,
'update': system_update,
'uninstall': system_uninstall,
'upgrade': system_upgrade,
'user': user,
}
MAPPINGS.update(COMMON_MAPPINGS)
MAPPINGS.update(DJANGO_MAPPINGS)
MAPPINGS.update(PGSQL_MAPPINGS)
MAPPINGS.update(POSIX_MAPPINGS)