我已经按照此处包含的指示在全新的 RPi 4 上安装了 Ubuntu 服务器 20.04 。
我启动我的系统，它正确启动，然后我尝试按照Canonical 的建议从这里安装 MicroK8s 。
建议的命令
sudo snap install microk8s --classic
给出错误
error: snap "microk8s" is not available on stable for
this architecture (armhf) but exists on other
architectures (amd64, arm64, ppc64el).
这是为什么？我可以完全理解这样一条消息的含义（不支持架构），但是为什么会这样呢？
我在 Ubuntu 服务器上运行 microk8s 实例作为香草安装，使用 MetalLB 配置以动态分配 10.0.2.1 到 10.0.2.200 并启用 Nginx 入口控制器。我已使用以下命令在此实例（ https://github.com/bitnami/charts/tree/master/bitnami/wordpress/#installing-the-chart ）上安装了 wordpress helm 图表：
helm install wordpress \
--set wordpressUsername=admin \
--set wordpressPassword=password \
--set mariadb.mariadbRootPassword=secretpassword \
--set ingress.enabled=true \
--set ingress.hostname=wordpress.internal \
bitnami/wordpress
服务启动并成功运行，当我运行时
kubectl describe services wordpress
我得到以下信息：
Name: wordpress
Namespace: default
Labels: app.kubernetes.io/instance=wordpress
app.kubernetes.io/managed-by=Helm
app.kubernetes.io/name=wordpress
helm.sh/chart=wordpress-9.3.10
Annotations: meta.helm.sh/release-name: wordpress
meta.helm.sh/release-namespace: default
Selector: app.kubernetes.io/instance=wordpress,app.kubernetes.io/name=wordpress
Type: LoadBalancer
IP: 10.152.183.73
LoadBalancer Ingress: 10.0.2.1
Port: http 80/TCP
TargetPort: http/TCP
NodePort: http 31799/TCP
Endpoints: 10.1.70.14:8080
Port: https 443/TCP
TargetPort: https/TCP
NodePort: https 30087/TCP
Endpoints: 10.1.70.14:8443
Session Affinity: None
External Traffic Policy: Cluster
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal IPAllocated 32m metallb-controller Assigned IP "10.0.2.1"
Normal nodeAssigned 6m41s (x3 over 31m) metallb-speaker announcing from node "k8s"
当我通过 SSH 连接到安装了 microk8s 的节点时，实例会按照我的预期响应：
curl 10.0.2.1
<!DOCTYPE html>
<html class="no-js" lang="en-US">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" >
<link rel="profile" href="https://gmpg.org/xfn/11">
<title>User's Blog! – Just another WordPress site</title>
但是，当我在联网的 Macbook 上运行相同的命令时，我无法得到响应：
curl 10.0.2.1
curl: (7) Failed to connect to 10.0.2.1 port 80: Operation timed out
谢谢你的时间，
我的 homelab 中有一个 master 和 worker Microk8s 集群在运行。我的构建文档在这里；GitHub
运行时我没有收到任何错误sudo microk8s.inspect
如果不进入 crashloopbackoff，我什至无法启动一个简单的容器
sudo microk8s.kubectl run http --image=katacoda/docker-http-server:latest
豆荚描述如下；
ubuntu@MasterControl:~$ sudo microk8s.kubectl describe pod/http
Name: http
Namespace: default
Priority: 0
Node: mastercontrol/192.168.123.10
Start Time: Wed, 22 Apr 2020 15:33:41 +0000
Labels: run=http
Annotations: <none>
Status: Running
IP: 10.1.39.13
IPs:
IP: 10.1.39.13
Containers:
http:
Container ID: containerd://2cb60ab4a7c25775b0b2acd5320145bf8b0f491b12fdeb32e879a68f18eb492f
Image: katacoda/docker-http-server:latest
Image ID: docker.io/katacoda/docker-http-server@sha256:76dc8a47fd019f80f2a3163aba789faf55b41b2fb06397653610c754cb12d3ee
Port: <none>
Host Port: <none>
State: Waiting
Reason: CrashLoopBackOff
Last State: Terminated
Reason: Error
Exit Code: 1
Started: Wed, 22 Apr 2020 15:33:46 +0000
Finished: Wed, 22 Apr 2020 15:33:46 +0000
Ready: False
Restart Count: 1
Environment: <none>
Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-j9x8g (ro)
Conditions:
Type Status
Initialized True
Ready False
ContainersReady False
PodScheduled True
Volumes:
default-token-j9x8g:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-j9x8g
Optional: false
QoS Class: BestEffort
Node-Selectors: <none>
Tolerations: node.kubernetes.io/not-ready:NoExecute for 300s
node.kubernetes.io/unreachable:NoExecute for 300s
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal Scheduled <unknown> default-scheduler Successfully assigned default/http to mastercontrol
Normal Created 15s (x2 over 18s) kubelet, mastercontrol Created container http
Normal Started 15s (x2 over 17s) kubelet, mastercontrol Started container http
Warning BackOff 13s (x2 over 14s) kubelet, mastercontrol Back-off restarting failed container
Normal Pulling 1s (x3 over 19s) kubelet, mastercontrol Pulling image "katacoda/docker-http-server:latest"
Normal Pulled 1s (x3 over 18s) kubelet, mastercontrol Successfully pulled image "katacoda/docker-http-server:latest"
非常感谢任何帮助，但我很想知道我哪里出错了！
有没有办法禁止快照自动启动？
我安装了 microk8s snap，非常酷，但是每次我重新启动计算机时它都会自动启动。我可以在登录后停止它，但它会占用我所有的 CPU 并占用磁盘时间。有时可能需要几分钟才能启动 gui。
microk8s.stop一旦终端运行，我就可以停止使用该服务。
我希望能够在需要时启动快照，但这似乎集成为核心服务。
绝对感谢任何帮助！
在单个节点上安装MicroK8s时，在获取状态时出现以下错误microk8s：
The command could not be located because '/snap/bin' is not included in the PATH environment variable.
microk8s.status: command not found
我已经完成了出口PATH=$PATH:/usr/bin
sudo nano /etc/environment
PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games"
仍然得到同样的错误。我该如何解决这个问题？
我正在尝试让 Microk8s 使用 snap 来工作。当我运行任何与 microk8s 相关的 snap 命令时，我收到以下错误消息：
error : cannot perform the following tasks:
- Arrêter les services du paquet Snap "microk8s" ([stop snap.microk8s.daemon-kubelet.service] failed with exit status 5: Failed to stop snap.microk8s.daemon-kubelet.service: Unit snap.microk8s.daemon-kubelet.service not loaded.
)
（Arrêter les services du paquet的意思是停止服务包）。
当我尝试启动 Microk8s、删除 Snap 包或几乎其他任何东西时，我得到了完全相同的消息。所以，我不仅不能使用它，我什至不能卸载它。任何人都可以帮忙吗？
快照版本：
snap 2.39.3
snapd 2.39.3
series 16
linuxmint 19.1
kernel 4.18.0-25-generic
当我尝试snap install microk8s在 LXD 机器上运行时，它无法启动并产生以下错误：
sysop@hoseplavm:~$ lxc list
+------------+---------+----------------------+------+------------+-----------+
| NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
+------------+---------+----------------------+------+------------+-----------+
| kubernetes | RUNNING | 10.144.28.123 (eth0) | | PERSISTENT | |
+------------+---------+----------------------+------+------------+-----------+
sysop@hoseplavm:~$ lxc exec kubernetes bash
root@kubernetes:~# microk8s.inspect
Inspecting services
Service snap.microk8s.daemon-containerd is running
Service snap.microk8s.daemon-apiserver is running
FAIL: Service snap.microk8s.daemon-proxy is not running
For more details look at: sudo journalctl -u snap.microk8s.daemon-proxy
FAIL: Service snap.microk8s.daemon-kubelet is not running
For more details look at: sudo journalctl -u snap.microk8s.daemon-kubelet
Service snap.microk8s.daemon-scheduler is running
Service snap.microk8s.daemon-controller-manager is running
Service snap.microk8s.daemon-etcd is running
Copy service arguments to the final report tarball
Inspecting AppArmor configuration
Gathering system info
Copy network configuration to the final report tarball
Copy processes list to the final report tarball
Copy snap list to the final report tarball
Inspect kubernetes cluster
Building the report tarball
Report tarball is at /var/snap/microk8s/522/inspection-report-20190604_133500.tar.gz
root@kubernetes:~#
是否可以在 LXD 容器内安装 microk8s？
microk8s.enable istio在 microk8s 上由于field is immutable. 相关的失败输出是
Error from server (Invalid): error when applying patch:
{"metadata":{"annotations":{"kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"batch/v1\",\"kind\":\"Job\",\"metadata\":{\"annotations\":{\"helm.sh/hook\":\"post-install\",\"helm.sh/hook-delete-policy\":\"hook-succeeded\"},\"labels\":{\"app\":\"istio-grafana\",\"chart\":\"grafana-1.0.5\",\"heritage\":\"Tiller\",\"release\":\"istio\"},\"name\":\"istio-grafana-post-install\",\"namespace\":\"istio-system\"},\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"app\":\"istio-grafana\",\"release\":\"istio\"},\"name\":\"istio-grafana-post-install\"},\"spec\":{\"containers\":[{\"command\":[\"/bin/bash\",\"/tmp/grafana/run.sh\",\"/tmp/grafana/custom-resources.yaml\"],\"image\":\"quay.io/coreos/hyperkube:v1.7.6_coreos.0\",\"name\":\"hyperkube\",\"volumeMounts\":[{\"mountPath\":\"/tmp/grafana\",\"name\":\"tmp-configmap-grafana\"}]}],\"restartPolicy\":\"OnFailure\",\"serviceAccountName\":\"istio-grafana-post-install-account\",\"volumes\":[{\"configMap\":{\"name\":\"istio-grafana-custom-resources\"},\"name\":\"tmp-configmap-grafana\"}]}}}}\n"},"labels":{"chart":"grafana-1.0.5","release":"istio"}},"spec":{"template":{"metadata":{"labels":{"release":"istio"}}}}}
to:
Resource: "batch/v1, Resource=jobs", GroupVersionKind: "batch/v1, Kind=Job"
Name: "istio-grafana-post-install", Namespace: "istio-system"
Object: &{map["apiVersion":"batch/v1" "kind":"Job" "metadata":map["annotations":map["helm.sh/hook":"post-install" "helm.sh/hook-delete-policy":"hook-succeeded" "kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"batch/v1\",\"kind\":\"Job\",\"metadata\":{\"annotations\":{\"helm.sh/hook\":\"post-install\",\"helm.sh/hook-delete-policy\":\"hook-succeeded\"},\"labels\":{\"app\":\"istio-grafana\",\"chart\":\"grafana-0.1.0\",\"heritage\":\"Tiller\",\"release\":\"RELEASE-NAME\"},\"name\":\"istio-grafana-post-install\",\"namespace\":\"istio-system\"},\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"app\":\"istio-grafana\",\"release\":\"RELEASE-NAME\"},\"name\":\"istio-grafana-post-install\"},\"spec\":{\"containers\":[{\"command\":[\"/bin/bash\",\"/tmp/grafana/run.sh\",\"/tmp/grafana/custom-resources.yaml\"],\"image\":\"quay.io/coreos/hyperkube:v1.7.6_coreos.0\",\"name\":\"hyperkube\",\"volumeMounts\":[{\"mountPath\":\"/tmp/grafana\",\"name\":\"tmp-configmap-grafana\"}]}],\"restartPolicy\":\"OnFailure\",\"serviceAccountName\":\"istio-grafana-post-install-account\",\"volumes\":[{\"configMap\":{\"name\":\"istio-grafana-custom-resources\"},\"name\":\"tmp-configmap-grafana\"}]}}}}\n"] "creationTimestamp":"2019-03-06T17:31:59Z" "labels":map["app":"istio-grafana" "chart":"grafana-0.1.0" "heritage":"Tiller" "release":"RELEASE-NAME"] "name":"istio-grafana-post-install" "namespace":"istio-system" "resourceVersion":"1603" "selfLink":"/apis/batch/v1/namespaces/istio-system/jobs/istio-grafana-post-install" "uid":"bf3accfa-4035-11e9-99ce-208984866d4f"] "spec":map["backoffLimit":'\x06' "completions":'\x01' "parallelism":'\x01' "selector":map["matchLabels":map["controller-uid":"bf3accfa-4035-11e9-99ce-208984866d4f"]] "template":map["metadata":map["creationTimestamp":<nil> "labels":map["app":"istio-grafana" "controller-uid":"bf3accfa-4035-11e9-99ce-208984866d4f" "job-name":"istio-grafana-post-install" "release":"RELEASE-NAME"] "name":"istio-grafana-post-install"] "spec":map["containers":[map["command":["/bin/bash" "/tmp/grafana/run.sh" "/tmp/grafana/custom-resources.yaml"] "image":"quay.io/coreos/hyperkube:v1.7.6_coreos.0" "imagePullPolicy":"IfNotPresent" "name":"hyperkube" "resources":map[] "terminationMessagePath":"/dev/termination-log" "terminationMessagePolicy":"File" "volumeMounts":[map["mountPath":"/tmp/grafana" "name":"tmp-configmap-grafana"]]]] "dnsPolicy":"ClusterFirst" "restartPolicy":"OnFailure" "schedulerName":"default-scheduler" "securityContext":map[] "serviceAccount":"istio-grafana-post-install-account" "serviceAccountName":"istio-grafana-post-install-account" "terminationGracePeriodSeconds":'\x1e' "volumes":[map["configMap":map["defaultMode":'\u01a4' "name":"istio-grafana-custom-resources"] "name":"tmp-configmap-grafana"]]]]] "status":map["completionTime":"2019-03-06T17:34:00Z" "conditions":[map["lastProbeTime":"2019-03-06T17:34:00Z" "lastTransitionTime":"2019-03-06T17:34:00Z" "status":"True" "type":"Complete"]] "startTime":"2019-03-06T17:31:59Z" "succeeded":'\x01']]}
for: "/snap/microk8s/483/actions/istio/istio-demo.yaml": Job.batch "istio-grafana-post-install" is invalid: spec.template: Invalid value: core.PodTemplateSpec{ObjectMeta:v1.ObjectMeta{Name:"istio-grafana-post-install", GenerateName:"", Namespace:"", SelfLink:"", UID:"", ResourceVersion:"", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{wall:0x0, ext:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string{"app":"istio-grafana", "controller-uid":"bf3accfa-4035-11e9-99ce-208984866d4f", "job-name":"istio-grafana-post-install", "release":"istio"}, Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Initializers:(*v1.Initializers)(nil), Finalizers:[]string(nil), ClusterName:"", ManagedFields:[]v1.ManagedFieldsEntry(nil)}, Spec:core.PodSpec{Volumes:[]core.Volume{core.Volume{Name:"tmp-configmap-grafana", VolumeSource:core.VolumeSource{HostPath:(*core.HostPathVolumeSource)(nil), EmptyDir:(*core.EmptyDirVolumeSource)(nil), GCEPersistentDisk:(*core.GCEPersistentDiskVolumeSource)(nil), AWSElasticBlockStore:(*core.AWSElasticBlockStoreVolumeSource)(nil), GitRepo:(*core.GitRepoVolumeSource)(nil), Secret:(*core.SecretVolumeSource)(nil), NFS:(*core.NFSVolumeSource)(nil), ISCSI:(*core.ISCSIVolumeSource)(nil), Glusterfs:(*core.GlusterfsVolumeSource)(nil), PersistentVolumeClaim:(*core.PersistentVolumeClaimVolumeSource)(nil), RBD:(*core.RBDVolumeSource)(nil), Quobyte:(*core.QuobyteVolumeSource)(nil), FlexVolume:(*core.FlexVolumeSource)(nil), Cinder:(*core.CinderVolumeSource)(nil), CephFS:(*core.CephFSVolumeSource)(nil), Flocker:(*core.FlockerVolumeSource)(nil), DownwardAPI:(*core.DownwardAPIVolumeSource)(nil), FC:(*core.FCVolumeSource)(nil), AzureFile:(*core.AzureFileVolumeSource)(nil), ConfigMap:(*core.ConfigMapVolumeSource)(0xc00c2d6640), VsphereVolume:(*core.VsphereVirtualDiskVolumeSource)(nil), AzureDisk:(*core.AzureDiskVolumeSource)(nil), PhotonPersistentDisk:(*core.PhotonPersistentDiskVolumeSource)(nil), Projected:(*core.ProjectedVolumeSource)(nil), PortworxVolume:(*core.PortworxVolumeSource)(nil), ScaleIO:(*core.ScaleIOVolumeSource)(nil), StorageOS:(*core.StorageOSVolumeSource)(nil), CSI:(*core.CSIVolumeSource)(nil)}}}, InitContainers:[]core.Container(nil), Containers:[]core.Container{core.Container{Name:"hyperkube", Image:"quay.io/coreos/hyperkube:v1.7.6_coreos.0", Command:[]string{"/bin/bash", "/tmp/grafana/run.sh", "/tmp/grafana/custom-resources.yaml"}, Args:[]string(nil), WorkingDir:"", Ports:[]core.ContainerPort(nil), EnvFrom:[]core.EnvFromSource(nil), Env:[]core.EnvVar(nil), Resources:core.ResourceRequirements{Limits:core.ResourceList(nil), Requests:core.ResourceList(nil)}, VolumeMounts:[]core.VolumeMount{core.VolumeMount{Name:"tmp-configmap-grafana", ReadOnly:false, MountPath:"/tmp/grafana", SubPath:"", MountPropagation:(*core.MountPropagationMode)(nil), SubPathExpr:""}}, VolumeDevices:[]core.VolumeDevice(nil), LivenessProbe:(*core.Probe)(nil), ReadinessProbe:(*core.Probe)(nil), Lifecycle:(*core.Lifecycle)(nil), TerminationMessagePath:"/dev/termination-log", TerminationMessagePolicy:"File", ImagePullPolicy:"IfNotPresent", SecurityContext:(*core.SecurityContext)(nil), Stdin:false, StdinOnce:false, TTY:false}}, RestartPolicy:"OnFailure", TerminationGracePeriodSeconds:(*int64)(0xc004976530), ActiveDeadlineSeconds:(*int64)(nil), DNSPolicy:"ClusterFirst", NodeSelector:map[string]string(nil), ServiceAccountName:"istio-grafana-post-install-account", AutomountServiceAccountToken:(*bool)(nil), NodeName:"", SecurityContext:(*core.PodSecurityContext)(0xc00354ccb0), ImagePullSecrets:[]core.LocalObjectReference(nil), Hostname:"", Subdomain:"", Affinity:(*core.Affinity)(nil), SchedulerName:"default-scheduler", Tolerations:[]core.Toleration(nil), HostAliases:[]core.HostAlias(nil), PriorityClassName:"", Priority:(*int32)(nil), DNSConfig:(*core.PodDNSConfig)(nil), ReadinessGates:[]core.PodReadinessGate(nil), RuntimeClassName:(*string)(nil), EnableServiceLinks:(*bool)(nil)}}: field is immutable
Error from server (Invalid): error when applying patch:
{"metadata":{"annotations":{"kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"batch/v1\",\"kind\":\"Job\",\"metadata\":{\"annotations\":{\"helm.sh/hook\":\"post-delete\",\"helm.sh/hook-delete-policy\":\"hook-succeeded\",\"helm.sh/hook-weight\":\"3\"},\"labels\":{\"app\":\"security\",\"chart\":\"security-1.0.5\",\"heritage\":\"Tiller\",\"release\":\"istio\"},\"name\":\"istio-cleanup-secrets\",\"namespace\":\"istio-system\"},\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"app\":\"security\",\"release\":\"istio\"},\"name\":\"istio-cleanup-secrets\"},\"spec\":{\"containers\":[{\"command\":[\"/bin/bash\",\"-c\",\"kubectl get secret --all-namespaces | grep \\\"istio.io/key-and-cert\\\" | while read -r entry; do\\n ns=$(echo $entry | awk '{print $1}');\\n name=$(echo $entry | awk '{print $2}');\\n kubectl delete secret $name -n $ns;\\ndone\\n\"],\"image\":\"quay.io/coreos/hyperkube:v1.7.6_coreos.0\",\"name\":\"hyperkube\"}],\"restartPolicy\":\"OnFailure\",\"serviceAccountName\":\"istio-cleanup-secrets-service-account\"}}}}\n"},"labels":{"chart":"security-1.0.5","release":"istio"}},"spec":{"template":{"metadata":{"labels":{"release":"istio"}}}}}
to:
Resource: "batch/v1, Resource=jobs", GroupVersionKind: "batch/v1, Kind=Job"
Name: "istio-cleanup-secrets", Namespace: "istio-system"
Object: &{map["apiVersion":"batch/v1" "kind":"Job" "metadata":map["annotations":map["helm.sh/hook":"post-delete" "helm.sh/hook-delete-policy":"hook-succeeded" "helm.sh/hook-weight":"3" "kubectl.kubernetes.io/last-applied-configuration":"{\"apiVersion\":\"batch/v1\",\"kind\":\"Job\",\"metadata\":{\"annotations\":{\"helm.sh/hook\":\"post-delete\",\"helm.sh/hook-delete-policy\":\"hook-succeeded\",\"helm.sh/hook-weight\":\"3\"},\"labels\":{\"app\":\"security\",\"chart\":\"security-1.0.0\",\"heritage\":\"Tiller\",\"release\":\"RELEASE-NAME\"},\"name\":\"istio-cleanup-secrets\",\"namespace\":\"istio-system\"},\"spec\":{\"template\":{\"metadata\":{\"labels\":{\"app\":\"security\",\"release\":\"RELEASE-NAME\"},\"name\":\"istio-cleanup-secrets\"},\"spec\":{\"containers\":[{\"command\":[\"/bin/bash\",\"-c\",\"kubectl get secret --all-namespaces | grep \\\"istio.io/key-and-cert\\\" | while read -r entry; do\\n ns=$(echo $entry | awk '{print $1}');\\n name=$(echo $entry | awk '{print $2}');\\n kubectl delete secret $name -n $ns;\\ndone\\n\"],\"image\":\"quay.io/coreos/hyperkube:v1.7.6_coreos.0\",\"name\":\"hyperkube\"}],\"restartPolicy\":\"OnFailure\",\"serviceAccountName\":\"istio-cleanup-secrets-service-account\"}}}}\n"] "creationTimestamp":"2019-03-06T17:31:59Z" "labels":map["app":"security" "chart":"security-1.0.0" "heritage":"Tiller" "release":"RELEASE-NAME"] "name":"istio-cleanup-secrets" "namespace":"istio-system" "resourceVersion":"1596" "selfLink":"/apis/batch/v1/namespaces/istio-system/jobs/istio-cleanup-secrets" "uid":"bf4f1cdb-4035-11e9-99ce-208984866d4f"] "spec":map["backoffLimit":'\x06' "completions":'\x01' "parallelism":'\x01' "selector":map["matchLabels":map["controller-uid":"bf4f1cdb-4035-11e9-99ce-208984866d4f"]] "template":map["metadata":map["creationTimestamp":<nil> "labels":map["app":"security" "controller-uid":"bf4f1cdb-4035-11e9-99ce-208984866d4f" "job-name":"istio-cleanup-secrets" "release":"RELEASE-NAME"] "name":"istio-cleanup-secrets"] "spec":map["containers":[map["command":["/bin/bash" "-c" "kubectl get secret --all-namespaces | grep \"istio.io/key-and-cert\" | while read -r entry; do\n ns=$(echo $entry | awk '{print $1}');\n name=$(echo $entry | awk '{print $2}');\n kubectl delete secret $name -n $ns;\ndone\n"] "image":"quay.io/coreos/hyperkube:v1.7.6_coreos.0" "imagePullPolicy":"IfNotPresent" "name":"hyperkube" "resources":map[] "terminationMessagePath":"/dev/termination-log" "terminationMessagePolicy":"File"]] "dnsPolicy":"ClusterFirst" "restartPolicy":"OnFailure" "schedulerName":"default-scheduler" "securityContext":map[] "serviceAccount":"istio-cleanup-secrets-service-account" "serviceAccountName":"istio-cleanup-secrets-service-account" "terminationGracePeriodSeconds":'\x1e']]] "status":map["completionTime":"2019-03-06T17:33:59Z" "conditions":[map["lastProbeTime":"2019-03-06T17:33:59Z" "lastTransitionTime":"2019-03-06T17:33:59Z" "status":"True" "type":"Complete"]] "startTime":"2019-03-06T17:31:59Z" "succeeded":'\x01']]}
for: "/snap/microk8s/483/actions/istio/istio-demo.yaml": Job.batch "istio-cleanup-secrets" is invalid: spec.template: Invalid value: core.PodTemplateSpec{ObjectMeta:v1.ObjectMeta{Name:"istio-cleanup-secrets", GenerateName:"", Namespace:"", SelfLink:"", UID:"", ResourceVersion:"", Generation:0, CreationTimestamp:v1.Time{Time:time.Time{wall:0x0, ext:0, loc:(*time.Location)(nil)}}, DeletionTimestamp:(*v1.Time)(nil), DeletionGracePeriodSeconds:(*int64)(nil), Labels:map[string]string{"app":"security", "controller-uid":"bf4f1cdb-4035-11e9-99ce-208984866d4f", "job-name":"istio-cleanup-secrets", "release":"istio"}, Annotations:map[string]string(nil), OwnerReferences:[]v1.OwnerReference(nil), Initializers:(*v1.Initializers)(nil), Finalizers:[]string(nil), ClusterName:"", ManagedFields:[]v1.ManagedFieldsEntry(nil)}, Spec:core.PodSpec{Volumes:[]core.Volume(nil), InitContainers:[]core.Container(nil), Containers:[]core.Container{core.Container{Name:"hyperkube", Image:"quay.io/coreos/hyperkube:v1.7.6_coreos.0", Command:[]string{"/bin/bash", "-c", "kubectl get secret --all-namespaces | grep \"istio.io/key-and-cert\" | while read -r entry; do\n ns=$(echo $entry | awk '{print $1}');\n name=$(echo $entry | awk '{print $2}');\n kubectl delete secret $name -n $ns;\ndone\n"}, Args:[]string(nil), WorkingDir:"", Ports:[]core.ContainerPort(nil), EnvFrom:[]core.EnvFromSource(nil), Env:[]core.EnvVar(nil), Resources:core.ResourceRequirements{Limits:core.ResourceList(nil), Requests:core.ResourceList(nil)}, VolumeMounts:[]core.VolumeMount(nil), VolumeDevices:[]core.VolumeDevice(nil), LivenessProbe:(*core.Probe)(nil), ReadinessProbe:(*core.Probe)(nil), Lifecycle:(*core.Lifecycle)(nil), TerminationMessagePath:"/dev/termination-log", TerminationMessagePolicy:"File", ImagePullPolicy:"IfNotPresent", SecurityContext:(*core.SecurityContext)(nil), Stdin:false, StdinOnce:false, TTY:false}}, RestartPolicy:"OnFailure", TerminationGracePeriodSeconds:(*int64)(0xc003271308), ActiveDeadlineSeconds:(*int64)(nil), DNSPolicy:"ClusterFirst", NodeSelector:map[string]string(nil), ServiceAccountName:"istio-cleanup-secrets-service-account", AutomountServiceAccountToken:(*bool)(nil), NodeName:"", SecurityContext:(*core.PodSecurityContext)(0xc00357ca10), ImagePullSecrets:[]core.LocalObjectReference(nil), Hostname:"", Subdomain:"", Affinity:(*core.Affinity)(nil), SchedulerName:"default-scheduler", Tolerations:[]core.Toleration(nil), HostAliases:[]core.HostAlias(nil), PriorityClassName:"", Priority:(*int32)(nil), DNSConfig:(*core.PodDNSConfig)(nil), ReadinessGates:[]core.PodReadinessGate(nil), RuntimeClassName:(*string)(nil), EnableServiceLinks:(*bool)(nil)}}: field is immutable
Failed to enable istio
完整的输出可以在https://pastebin.com/v4CAec14找到。
这似乎与已知问题https://github.com/ubuntu/microk8s/issues/414和https://github.com/ubuntu/microk8s/issues/386无关。
我snap在 Ubuntu 18.10 上安装了 stable 1.14 (492) 和 edge 1.14.1 (522) 时遇到了这个问题。
为了helm在 Kubernetes on Google Cloud (gCloud) 上安装应用程序，我从仪表板启动了一个云 shell。如何helm在 microk8s 上做到这一点或以不同的方式安装？
我在 Ubuntu 18.10 上使用 microk8s 1.14。
有关于如何启用仪表板扩展的信息
microk8s.enable dashboard
（我运行）以及如何显示启用的其他扩展的 URL，如下所示：
kubectl cluster-info
如何获取在 Ubuntu 18.10 上本地运行的 microk8s 安装仪表板的 URL？