我正在努力安装 juju kubernetes-core charm
我已经设置了三个环境：
- juju 控制器
- juju add-cloud 手册
- 增加了两个 Ubuntu 4 CPU 4GB RAM
然后我跑了：
juju deploy --dry-run cs:bundle/kubernetes-core-1340 --map-machines=existing,0=0,1=1
发现我卡在了“juju 状态”
Model Controller Cloud/Region Version SLA Timestamp
default k8s k8scloud/default 2.9.10 unsupported 13:08:03+02:00
App Version Status Scale Charm Store Channel Rev OS Message
containerd go1.13.8 active 2 containerd charmstore edge 147 ubuntu Container runtime available
easyrsa 3.0.1 active 1 easyrsa charmstore edge 396 ubuntu Certificate Authority connected.
etcd 3.4.5 active 1 etcd charmstore edge 608 ubuntu Healthy with 1 known peer
flannel error 2 flannel charmstore edge 572 ubuntu hook failed: "install"
kubernetes-master 1.22.0-alpha.2 waiting 1 kubernetes-master charmstore edge 1035 ubuntu Waiting for CNI plugins to become available
kubernetes-worker 1.22.0-alpha.2 waiting 1 kubernetes-worker charmstore edge 789 ubuntu Waiting for cluster credentials.
Unit Workload Agent Machine Public address Ports Message
easyrsa/0* active idle 0/lxd/0 10.156.136.137 Certificate Authority connected.
etcd/0* active idle 0 172.16.51.212 2379/tcp Healthy with 1 known peer
kubernetes-master/0* waiting idle 0 172.16.51.212 **Waiting for CNI plugins to become available**
containerd/1 active idle 172.16.51.212 Container runtime available
flannel/1 error idle 172.16.51.212 hook failed: "install"
kubernetes-worker/0* waiting idle 1 172.16.51.213 Waiting for cluster credentials.
containerd/0* active idle 172.16.51.213 Container runtime available
flannel/0* error idle 172.16.51.213 hook failed: "install"
Machine State DNS Inst id Series AZ Message
0 started 172.16.51.212 manual:172.16.51.212 focal Manually provisioned machine
0/lxd/0 started 10.156.136.137 juju-c9d9ed-0-lxd-0 focal Container started
1 started 172.16.51.213 manual:172.16.51.213 focal Manually provisioned machine
当我打开法兰绒日志时，我看到：
2021-08-06 10:29:20 ERROR unit.flannel/0.juju-log server.go:314 Hook error:
Traceback (most recent call last):
File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/__init__.py", line 71, in main
bus.discover()
File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 426, in discover
_register_handlers_from_file(search_path, filepath)
File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 466, in _register_handlers_from_file
_load_module(root, filepath)
File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 444, in _load_module
return importlib.import_module(package + module)
File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
...skipping...
File "<frozen importlib._bootstrap>", line 991, in _find_and_load
File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
File "<frozen importlib._bootstrap_external>", line 848, in exec_module
File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
File "/var/lib/juju/agents/unit-flannel-0/charm/hooks/relations/kubernetes-cni/provides.py", line 5, in <module>
from charms.layer.kubernetes_common import kubeclientconfig_path
**ModuleNotFoundError: No module named 'charms.layer.kubernetes_common'**
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 Traceback (most recent call last):
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/charm/hooks/install", line 22, in <module>
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 main()
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/__init__.py", line 71, in main
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 bus.discover()
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 426, in discover
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 _register_handlers_from_file(search_path, filepath)
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 466, in _register_handlers_from_file
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 _load_module(root, filepath)
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/.venv/lib/python3.8/site-packages/charms/reactive/bus.py", line 444, in _load_module
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 return importlib.import_module(package + module)
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/usr/lib/python3.8/importlib/__init__.py", line 127, in import_module
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 return _bootstrap._gcd_import(name[level:], package, level)
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap>", line 991, in _find_and_load
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap_external>", line 848, in exec_module
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 File "/var/lib/juju/agents/unit-flannel-0/charm/hooks/relations/kubernetes-cni/provides.py", line 5, in <module>
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 from charms.layer.kubernetes_common import kubeclientconfig_path
2021-08-06 10:54:52 WARNING unit.flannel/0.install logger.go:60 ModuleNotFoundError: No module named 'charms.layer.kubernetes_common'
2021-08-06 10:54:52 ERROR juju.worker.uniter.operation runhook.go:139 hook "install" (via explicit, bespoke hook script) failed: exit status 1
2021-08-06 10:54:52 INFO juju.worker.uniter resolver.go:144 awaiting error resolution for "install" hook
2021-08-06 10:59:52 INFO juju.worker.uniter resolver.go:144 awaiting error resolution for "install" hook
2021-08-06 10:59:52 INFO unit.flannel/0.juju-log server.go:314 Reactive main running for hook install
2021-08-06 10:59:52 ERROR unit.flannel/0.juju-log server.go:314 Hook error:
我不确定为什么该模块无法安装或者丢失。
答案1
我不是 k8s 专家，但似乎是在以下位置报告的一个错误：https://bugs.launchpad.net/charm-flannel/+bug/1938943
看来您正在使用Flannel charm并且它缺少该kubernetes_common层。
正如他们所说，如果您不需要特别解决方法，Launchpad 中Calico有kubernetes_common您可以切换到的层吗？Calico charmFlannel
详细资料：https://ubuntu.com/kubernetes/docs/charm-calico
编辑：或者您可以添加layer:kubernetes-common到层.yaml并建立魅力:)