kubernetes - kubeadm初始化显示kubelet未运行或运行状况良好

Question

我正在尝试运行Kubernetes并尝试使用sudo kubeadm init。
根据官方文档的建议，交换已关闭。

问题是它显示警告:

[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get http://localhost:10248/healthz: dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get http://localhost:10248/healthz: dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get http://localhost:10248/healthz: dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get http://localhost:10248/healthz: dial tcp 127.0.0.1:10248: connect: connection refused.
[kubelet-check] It seems like the kubelet isn't running or healthy.
[kubelet-check] The HTTP call equal to 'curl -sSL http://localhost:10248/healthz' failed with error: Get http://localhost:10248/healthz: dial tcp 127.0.0.1:10248: connect: connection refused.


Unfortunately, an error has occurred:
            timed out waiting for the condition

This error is likely caused by:
            - The kubelet is not running
            - The kubelet is unhealthy due to a misconfiguration of the node in some way (required cgroups disabled)
            - No internet connection is available so the kubelet cannot pull or find the following control plane images:
                - k8s.gcr.io/kube-apiserver-amd64:v1.11.2
                - k8s.gcr.io/kube-controller-manager-amd64:v1.11.2
                - k8s.gcr.io/kube-scheduler-amd64:v1.11.2
                - k8s.gcr.io/etcd-amd64:3.2.18
                - You can check or miligate this in beforehand with "kubeadm config images pull" to make sure the images
                  are downloaded locally and cached.

        If you are on a systemd-powered system, you can try to troubleshoot the error with the following commands:
            - 'systemctl status kubelet'
            - 'journalctl -xeu kubelet'

        Additionally, a control plane component may have crashed or exited when started by the container runtime.
        To troubleshoot, list all containers using your preferred container runtimes CLI, e.g. docker.
        Here is one example how you may list all Kubernetes containers running in docker:
            - 'docker ps -a | grep kube | grep -v pause'
            Once you have found the failing container, you can inspect its logs with:
            - 'docker logs CONTAINERID'
couldn't initialize a Kubernetes cluster

我正在使用的docker版本是 Docker version 17.03.2-ce, build f5ec1e2我正在使用Ubuntu 16.04 LTS 64bit

docker 图像显示以下图像:

REPOSITORY                                 TAG                 IMAGE ID            CREATED             SIZE
k8s.gcr.io/kube-apiserver-amd64            v1.11.2             821507941e9c        3 weeks ago         187 MB
k8s.gcr.io/kube-controller-manager-amd64   v1.11.2             38521457c799        3 weeks ago         155 MB
k8s.gcr.io/kube-proxy-amd64                v1.11.2             46a3cd725628        3 weeks ago         97.8 MB
k8s.gcr.io/kube-scheduler-amd64            v1.11.2             37a1403e6c1a        3 weeks ago         56.8 MB
k8s.gcr.io/coredns                         1.1.3               b3b94275d97c        3 months ago        45.6 MB
k8s.gcr.io/etcd-amd64                      3.2.18              b8df3b177be2        4 months ago        219 MB
k8s.gcr.io/pause                           3.1                 da86e6ba6ca1        8 months ago        742 kB

完整的日志可以在这里找到:
https://pastebin.com/T5V0taE3

我没有在互联网上找到任何解决方案。

编辑:

docker ps -a输出:

ubuntu@ubuntu-HP-Pavilion-15-Notebook-PC:~$ docker ps -a
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS

journalctl -xeu kubelet输出:

journalctl -xeu kubelet
-- Subject: Unit kubelet.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit kubelet.service has finished shutting down.
Sep 01 10:40:05 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: Started kubelet: T
-- Subject: Unit kubelet.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit kubelet.service has finished starting up.
-- 
-- The start-up result is done.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: Flag --cgroup-d
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: Flag --cgroup-d
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: F0901 10:40:06.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: M
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: U
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: F
lines 788-810/810 (END)
-- Subject: Unit kubelet.service has finished shutting down
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit kubelet.service has finished shutting down.
Sep 01 10:40:05 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: Started kubelet: The Kubernetes Node Agent.
-- Subject: Unit kubelet.service has finished start-up
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
-- 
-- Unit kubelet.service has finished starting up.
-- 
-- The start-up result is done.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: Flag --cgroup-driver has been deprecated, This parameter should be set via the
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: Flag --cgroup-driver has been deprecated, This parameter should be set via the
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.117131    9107 server.go:408] Version: v1.11.2
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.117406    9107 plugins.go:97] No cloud provider specified.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.121192    9107 certificate_store.go:131] Loading cert/key pair 
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: I0901 10:40:06.145720    9107 server.go:648] --cgroups-per-qos enabled, but --
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC kubelet[9107]: F0901 10:40:06.146074    9107 server.go:262] failed to run Kubelet: Running wi
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: Main process exited, code=exited, status=255/n/a
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: Unit entered failed state.
Sep 01 10:40:06 ubuntu-HP-Pavilion-15-Notebook-PC systemd[1]: kubelet.service: Failed with result 'exit-code'.
~


          PORTS               NAMES

任何帮助/建议/意见将不胜感激。

Answer 1

该错误已由修复

sudo swapoff -a
sudo sed -i '/ swap / s/^/#/' /etc/fstab

重新启动机器。