def status(arguments):
"""
Main dispatcher for status commands. Calls the corresponding helper
function.
:param arguments: A dictionary of arguments already processed through
this file's docstring with docopt
:return: None
"""
calico_node_info = filter(lambda container: "/calico-node" in
container["Names"],
docker_client.containers())
if len(calico_node_info) == 0:
print "calico-node container not running"
else:
print "calico-node container is running. Status: %s" % \
calico_node_info[0]["Status"]
apt_cmd = docker_client.exec_create("calico-node", ["/bin/bash", "-c",
"apt-cache policy calico-felix"])
result = re.search(r"Installed: (.*?)\s", docker_client.exec_start(apt_cmd))
if result is not None:
print "Running felix version %s" % result.group(1)
print "\nIPv4 BGP status"
pprint_bird_protocols(4)
print "IPv6 BGP status"
pprint_bird_protocols(6)
def warn_if_hostname_conflict(ip):
"""
Prints a warning message if it seems like an existing host is already running
calico using this hostname.
:param ip: User-provided IP address to start this node with.
:return: Nothing
"""
# If there's already a calico-node container on this host, they're probably
# just re-running node to update one of the ip addresses, so skip..
if len(docker_client.containers(filters={'name': 'calico-node'})) == 0:
# Otherwise, check if another host with the same hostname
# is already configured
try:
current_ipv4, _ = client.get_host_bgp_ips(hostname)
except KeyError:
# No other machine has registered configuration under this hostname.
# This must be a new host with a unique hostname, which is the
# expected behavior.
pass
else:
if current_ipv4 != "" and current_ipv4 != ip:
print_paragraph("WARNING: Hostname '%s' is already in use "
"with IP address %s. Calico requires each compute host to "
"have a unique hostname. If this is your first time "
"running 'calicoctl node' on this host, ensure that " \
"another host is not already using the " \
"same hostname." % (hostname, ip))
def warn_if_hostname_conflict(ip):
"""
Prints a warning message if it seems like an existing host is already running
calico using this hostname.
:param ip: User-provided IP address to start this node with.
:return: Nothing
"""
# If there's already a calico-node container on this host, they're probably
# just re-running node to update one of the ip addresses, so skip..
if len(docker_client.containers(filters={'name': 'calico-node'})) == 0:
# Otherwise, check if another host with the same hostname
# is already configured
try:
current_ipv4, _ = client.get_host_bgp_ips(hostname)
except KeyError:
# No other machine has registered configuration under this hostname.
# This must be a new host with a unique hostname, which is the
# expected behavior.
pass
else:
if current_ipv4 != "" and current_ipv4 != ip:
print_paragraph("WARNING: Hostname '%s' is already in use "
"with IP address %s. Calico requires each compute host to "
"have a unique hostname. If this is your first time "
"running 'calicoctl node' on this host, ensure that " \
"another host is not already using the " \
"same hostname." % (hostname, ip))
