def find_container(ip):
pattern = re.compile(app.config['HOSTNAME_MATCH_REGEX'])
client = docker_client()
# Try looking at the container mapping cache first
if ip in CONTAINER_MAPPING:
log.info('Container id for IP {0} in cache'.format(ip))
try:
with PrintingBlockTimer('Container inspect'):
container = client.inspect_container(CONTAINER_MAPPING[ip])
return container
except docker.errors.NotFound:
msg = 'Container id {0} no longer mapped to {1}'
log.error(msg.format(CONTAINER_MAPPING[ip], ip))
del CONTAINER_MAPPING[ip]
_fqdn = None
with PrintingBlockTimer('Reverse DNS'):
if app.config['ROLE_REVERSE_LOOKUP']:
try:
_fqdn = socket.gethostbyaddr(ip)[0]
except socket.error as e:
log.error('gethostbyaddr failed: {0}'.format(e.args))
pass
with PrintingBlockTimer('Container fetch'):
_ids = [c['Id'] for c in client.containers()]
for _id in _ids:
try:
with PrintingBlockTimer('Container inspect'):
c = client.inspect_container(_id)
except docker.errors.NotFound:
log.error('Container id {0} not found'.format(_id))
continue
# Try matching container to caller by IP address
_ip = c['NetworkSettings']['IPAddress']
if ip == _ip:
msg = 'Container id {0} mapped to {1} by IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by hostname match
if app.config['ROLE_REVERSE_LOOKUP']:
hostname = c['Config']['Hostname']
domain = c['Config']['Domainname']
fqdn = '{0}.{1}'.format(hostname, domain)
# Default pattern matches _fqdn == fqdn
_groups = re.match(pattern, _fqdn).groups()
groups = re.match(pattern, fqdn).groups()
if _groups and groups:
if groups[0] == _groups[0]:
msg = 'Container id {0} mapped to {1} by FQDN match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
log.error('No container found for ip {0}'.format(ip))
return None
def find_container(ip):
pattern = re.compile(app.config['HOSTNAME_MATCH_REGEX'])
client = docker_client()
# Try looking at the container mapping cache first
if ip in CONTAINER_MAPPING:
log.info('Container id for IP {0} in cache'.format(ip))
try:
with PrintingBlockTimer('Container inspect'):
container = client.inspect_container(CONTAINER_MAPPING[ip])
# Only return a cached container if it is running.
if container['State']['Running']:
return container
else:
log.error('Container id {0} is no longer running'.format(ip))
del CONTAINER_MAPPING[ip]
except docker.errors.NotFound:
msg = 'Container id {0} no longer mapped to {1}'
log.error(msg.format(CONTAINER_MAPPING[ip], ip))
del CONTAINER_MAPPING[ip]
_fqdn = None
with PrintingBlockTimer('Reverse DNS'):
if app.config['ROLE_REVERSE_LOOKUP']:
try:
_fqdn = socket.gethostbyaddr(ip)[0]
except socket.error as e:
log.error('gethostbyaddr failed: {0}'.format(e.args))
pass
with PrintingBlockTimer('Container fetch'):
_ids = [c['Id'] for c in client.containers()]
for _id in _ids:
try:
with PrintingBlockTimer('Container inspect'):
c = client.inspect_container(_id)
except docker.errors.NotFound:
log.error('Container id {0} not found'.format(_id))
continue
# Try matching container to caller by IP address
_ip = c['NetworkSettings']['IPAddress']
if ip == _ip:
msg = 'Container id {0} mapped to {1} by IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by sub network IP address
_networks = c['NetworkSettings']['Networks']
if _networks:
for _network in _networks:
if _networks[_network]['IPAddress'] == ip:
msg = 'Container id {0} mapped to {1} by sub-network IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Not Found ? Let's see if we are running under rancher 1.2+,which uses a label to store the IP
try:
_labels = c.get('Config', {}).get('Labels', {})
except (KeyError, ValueError):
_labels = {}
try:
if _labels.get('io.rancher.container.ip'):
_ip = _labels.get('io.rancher.container.ip').split("/")[0]
except docker.errors.NotFound:
log.error(
'Container: {0} Label container.ip not found'.format(_id))
if ip == _ip:
msg = 'Container id {0} mapped to {1} by Rancher IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by hostname match
if app.config['ROLE_REVERSE_LOOKUP']:
hostname = c['Config']['Hostname']
domain = c['Config']['Domainname']
fqdn = '{0}.{1}'.format(hostname, domain)
# Default pattern matches _fqdn == fqdn
_groups = re.match(pattern, _fqdn).groups()
groups = re.match(pattern, fqdn).groups()
if _groups and groups:
if groups[0] == _groups[0]:
msg = 'Container id {0} mapped to {1} by FQDN match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
log.error('No container found for ip {0}'.format(ip))
return None
def find_container(ip):
pattern = re.compile(app.config['HOSTNAME_MATCH_REGEX'])
client = docker_client()
# Try looking at the container mapping cache first
container_id = CONTAINER_MAPPING.get(ip)
if container_id:
log.info('Container id for IP {0} in cache'.format(ip))
try:
with PrintingBlockTimer('Container inspect'):
container = client.inspect_container(container_id)
# Only return a cached container if it is running.
if container['State']['Running']:
return container
else:
log.error('Container id {0} is no longer running'.format(ip))
if ip in CONTAINER_MAPPING:
del CONTAINER_MAPPING[ip]
except docker.errors.NotFound:
msg = 'Container id {0} no longer mapped to {1}'
log.error(msg.format(container_id, ip))
if ip in CONTAINER_MAPPING:
del CONTAINER_MAPPING[ip]
_fqdn = None
with PrintingBlockTimer('Reverse DNS'):
if app.config['ROLE_REVERSE_LOOKUP']:
try:
_fqdn = socket.gethostbyaddr(ip)[0]
except socket.error as e:
log.error('gethostbyaddr failed: {0}'.format(e.args))
pass
with PrintingBlockTimer('Container fetch'):
_ids = [c['Id'] for c in client.containers()]
for _id in _ids:
try:
with PrintingBlockTimer('Container inspect'):
c = client.inspect_container(_id)
except docker.errors.NotFound:
log.error('Container id {0} not found'.format(_id))
continue
# Try matching container to caller by IP address
_ip = c['NetworkSettings']['IPAddress']
if ip == _ip:
msg = 'Container id {0} mapped to {1} by IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by sub network IP address
_networks = c['NetworkSettings']['Networks']
if _networks:
for _network in _networks:
if _networks[_network]['IPAddress'] == ip:
msg = 'Container id {0} mapped to {1} by sub-network IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Not Found ? Let's see if we are running under rancher 1.2+,which uses a label to store the IP
try:
_labels = c.get('Config', {}).get('Labels', {})
except (KeyError, ValueError):
_labels = {}
try:
if _labels.get('io.rancher.container.ip'):
_ip = _labels.get('io.rancher.container.ip').split("/")[0]
except docker.errors.NotFound:
log.error('Container: {0} Label container.ip not found'.format(_id))
if ip == _ip:
msg = 'Container id {0} mapped to {1} by Rancher IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by hostname match
if app.config['ROLE_REVERSE_LOOKUP']:
hostname = c['Config']['Hostname']
domain = c['Config']['Domainname']
fqdn = '{0}.{1}'.format(hostname, domain)
# Default pattern matches _fqdn == fqdn
_groups = re.match(pattern, _fqdn).groups()
groups = re.match(pattern, fqdn).groups()
if _groups and groups:
if groups[0] == _groups[0]:
msg = 'Container id {0} mapped to {1} by FQDN match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
log.error('No container found for ip {0}'.format(ip))
return None
def find_container(ip):
pattern = re.compile(app.config['HOSTNAME_MATCH_REGEX'])
client = docker_client()
# Try looking at the container mapping cache first
if ip in CONTAINER_MAPPING:
log.info('Container id for IP {0} in cache'.format(ip))
try:
with PrintingBlockTimer('Container inspect'):
container = client.inspect_container(CONTAINER_MAPPING[ip])
# Only return a cached container if it is running.
if container['State']['Running']:
return container
else:
log.error('Container id {0} is no longger running'.format(ip))
del CONTAINER_MAPPING[ip]
except docker.errors.NotFound:
msg = 'Container id {0} no longer mapped to {1}'
log.error(msg.format(CONTAINER_MAPPING[ip], ip))
del CONTAINER_MAPPING[ip]
_fqdn = None
with PrintingBlockTimer('Reverse DNS'):
if app.config['ROLE_REVERSE_LOOKUP']:
try:
_fqdn = socket.gethostbyaddr(ip)[0]
except socket.error as e:
log.error('gethostbyaddr failed: {0}'.format(e.args))
pass
with PrintingBlockTimer('Container fetch'):
_ids = [c['Id'] for c in client.containers()]
for _id in _ids:
try:
with PrintingBlockTimer('Container inspect'):
c = client.inspect_container(_id)
except docker.errors.NotFound:
log.error('Container id {0} not found'.format(_id))
continue
# Try matching container to caller by IP address
_ip = c['NetworkSettings']['IPAddress']
if ip == _ip:
msg = 'Container id {0} mapped to {1} by IP match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
# Try matching container to caller by hostname match
if app.config['ROLE_REVERSE_LOOKUP']:
hostname = c['Config']['Hostname']
domain = c['Config']['Domainname']
fqdn = '{0}.{1}'.format(hostname, domain)
# Default pattern matches _fqdn == fqdn
_groups = re.match(pattern, _fqdn).groups()
groups = re.match(pattern, fqdn).groups()
if _groups and groups:
if groups[0] == _groups[0]:
msg = 'Container id {0} mapped to {1} by FQDN match'
log.debug(msg.format(_id, ip))
CONTAINER_MAPPING[ip] = _id
return c
log.error('No container found for ip {0}'.format(ip))
return None