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from shlex import quote
from bundlewrap.exceptions import BundleError
from bundlewrap.items import Item
from bundlewrap.utils.text import mark_for_translation as _
def svc_start(node, svcname):
return node.run(f"rc-service {quote(svcname)} start", may_fail=True)
def svc_running(node, svcname):
result = node.run(f"rc-service {quote(svcname)} status", may_fail=True)
return result.return_code == 0 and "started" in result.stdout_text
def svc_stop(node, svcname):
return node.run(f"rc-service {quote(svcname)} stop", may_fail=True)
def svc_enable(node, svcname, runlevel):
return node.run(f"rc-update add {quote(svcname)} {quote(runlevel)}", may_fail=True)
def svc_enabled(node, svcname, runlevel):
result = node.run(
f"rc-update show {quote(runlevel)} | grep -w {quote(svcname)}",
may_fail=True,
)
return result.return_code == 0 and svcname in result.stdout_text
def svc_runlevel(node, svcname):
result = node.run(
f"rc-update show --all | grep -w {quote(svcname)} | cut -d \\| -f 2",
may_fail=True,
)
return result.stdout_text.strip() if result.return_code == 0 else None
def svc_disable(node, svcname, runlevel):
return node.run(f"rc-update del {quote(svcname)} {quote(runlevel)}", may_fail=True)
class SvcOpenRC2(Item):
"""
A service managed by OpenRC init scripts.
"""
BUNDLE_ATTRIBUTE_NAME = "svc_openrc2"
ITEM_ATTRIBUTES = {
"running": True,
"enabled": True,
"runlevel": "default",
}
ITEM_TYPE_NAME = "svc_openrc2"
def __repr__(self):
return "<SvcOpenRC name:{} runlevel:{} enabled:{} running:{}>".format(
self.name,
self.attributes["runlevel"],
self.attributes["enabled"],
self.attributes["running"],
)
def fix(self, status):
if "enabled" in status.keys_to_fix:
if self.attributes["enabled"]:
svc_enable(self.node, self.name, self.attributes["runlevel"])
else:
svc_disable(self.node, self.name, self.attributes["runlevel"])
if "running" in status.keys_to_fix:
if self.attributes["running"]:
svc_start(self.node, self.name)
else:
svc_stop(self.node, self.name)
if "runlevel" in status.keys_to_fix:
if status.sdict["runlevel"]:
svc_disable(self.node, self.name, status.sdict["runlevel"])
svc_enable(self.node, self.name, self.attributes["runlevel"])
def get_canned_actions(self):
return {
"stop": {
"command": f"rc-service {self.name} stop",
"needed_by": {self.id},
},
"restart": {
"command": f"rc-service {self.name} restart",
"needs": {self.id},
},
"reload": {
"command": f"rc-service {self.name} reload".format(self.name),
"needs": {
# make sure we don't reload and restart simultaneously
f"{self.id}:restart",
# with only the dep on restart, we might still end
# up reloading if the service itself is skipped
# because the restart action has cascade_skip False
self.id,
},
},
}
def sdict(self):
return {
"enabled": svc_enabled(self.node, self.name, self.attributes["runlevel"]),
"running": svc_running(self.node, self.name),
"runlevel": svc_runlevel(self.node, self.name),
}
@classmethod
def validate_attributes(cls, bundle, item_id, attributes):
for attribute in ("enabled", "running"):
if attributes.get(attribute, None) not in (True, False, None):
raise BundleError(
_(
"expected boolean or None for '{attribute}' on {item} in bundle '{bundle}'"
).format(
attribute=attribute,
bundle=bundle.name,
item=item_id,
)
)
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