def check_snap_installed(self, snapname):
"""Verify a snap is installed."""
result = snap.is_installed(snapname)
hookenv.log(
"Checking if snap {} is installed: {}".format(snapname, result),
hookenv.DEBUG,
)
return result
def get_target_etcd_channel():
"""
Check whether or not etcd is already installed. i.e. we're
going through an upgrade. If so, leave the etcd version alone,
if we're a new install, we can set the default channel here.
If the user has specified a version, then just return that.
:return: String snap channel
"""
channel = hookenv.config("channel")
if channel == "auto":
if snap.is_installed("etcd"):
return False
else:
return "3.4/stable"
else:
return channel
def check_snap_installed(self, snapname):
"""Verify a snap is installed."""
return snap.is_installed(snapname)