Public bug reported:
Our K8S deployments using Juju are erroring on the install step of the
flannel charm. This is using flannel charm revision 351 on bionic:
Model Controller Cloud/Region Version SLA Timestamp
mgmt-k8s juju_main cloud/RegionOne 2.5.0 unsupported 15:00:52Z
App Version Status Scale Charm Store
Rev OS Notes
easyrsa 3.0.1 active 1 easyrsa jujucharms
195 ubuntu
etcd 3.2.10 active 1 etcd jujucharms
378 ubuntu
flannel error 3 flannel jujucharms
351 ubuntu
kubernetes-master 1.13.2 waiting 1 kubernetes-master jujucharms
542 ubuntu exposed
kubernetes-worker 1.13.2 waiting 2 kubernetes-worker jujucharms
398 ubuntu exposed
openstack-integrator active 1 openstack-integrator jujucharms
8 ubuntu
Unit Workload Agent Machine Public address Ports
Message
easyrsa/0* active idle 0/lxd/0 253.12.75.208
Certificate Authority connected.
etcd/0* active idle 0 172.16.20.52 2379/tcp
Healthy with 1 known peer
kubernetes-master/0* waiting idle 0 172.16.20.52
Waiting for CNI plugins to become available
flannel/1 error idle 172.16.20.52
hook failed: "install"
kubernetes-worker/0* waiting idle 1 172.16.20.65
Waiting for cluster DNS.
flannel/0* error idle 172.16.20.65
hook failed: "install"
kubernetes-worker/1 waiting idle 2 172.16.20.51
Waiting for cluster DNS.
flannel/2 error idle 172.16.20.51
hook failed: "install"
openstack-integrator/0* active idle 0/lxd/1 253.12.68.47
ready
Machine State DNS Inst id Series
AZ Message
0 started 172.16.20.52 b13a1ac2-2f7c-4c6f-ad4d-54e7bc94e6b9 bionic
nova ACTIVE
0/lxd/0 started 253.12.75.208 juju-4fec8a-0-lxd-0 bionic
nova Container started
0/lxd/1 started 253.12.68.47 juju-4fec8a-0-lxd-1 bionic
nova Container started
1 started 172.16.20.65 adcfc59e-767b-4780-addd-729d7a67025a bionic
nova ACTIVE
2 started 172.16.20.51 842b0c6a-4786-47ae-aee6-5f93fe9e37ab bionic
nova ACTIVE
Note all flannel units are in error.
Looking at the flannel logs, we get this:
2019-02-04 14:17:52 ERROR juju-log Hook error:
Traceback (most recent call last):
File
"/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.6/site-packages/charms/reactive/__init__.py",
line 73, in main
bus.dispatch(restricted=restricted_mode)
File
"/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py",
line 390, in dispatch
_invoke(other_handlers)
File
"/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py",
line 359, in _invoke
handler.invoke()
File
"/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.6/site-packages/charms/reactive/bus.py",
line 181, in invoke
self._action(*args)
File "/var/lib/juju/agents/unit-flannel-0/charm/reactive/flannel.py", line
224, in set_flannel_version
version = check_output(split(cmd), stderr=STDOUT).decode('utf-8')
File "/usr/lib/python3.6/subprocess.py", line 336, in check_output
**kwargs).stdout
File "/usr/lib/python3.6/subprocess.py", line 403, in run
with Popen(*popenargs, **kwargs) as process:
File "/usr/lib/python3.6/subprocess.py", line 709, in __init__
restore_signals, start_new_session)
File "/usr/lib/python3.6/subprocess.py", line 1344, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'flanneld': 'flanneld'
Oddly, if I ssh into the unit, I can find flanneld here:
root@juju-4fec8a-mgmt-k8s-0:/# find . -name flanneld
./usr/local/bin/flanneld
./var/lib/juju/agents/unit-flannel-1/charm/files/flannel/flanneld
** Affects: juju (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1814549
Title:
flannel juju charm erroring due to FileNotFounderror
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