摘要：問題安裝過程中部分鏡像需要從的鏡像倉庫拉取但是國內無法訪問其鏡像倉庫故需要手動獲取鏡像再自行安裝從官方提供的倉庫獲取不是使用的宿主機器的進程故不能簡單的把自己獲取的鏡像重新來完成安裝需要導出之后然后使用提供的鏡像管理功能進行導入解決原理獲取

microk8s安裝過程中,部分鏡像需要從google的鏡像倉庫拉取,但是國內無法訪問其鏡像倉庫, 故需要手動獲取鏡像再自行安裝(從官方提供的google mirror倉庫獲取)

microk8s不是使用的宿主機器的docker進程, 故不能簡單的把自己獲取的鏡像重新tag來完成安裝; 需要導出之后然后使用microk8s提供的鏡像管理功能進行導入

獲取到你需要的鏡像名稱和版本之后 (參見后面的排查技巧)

docker pull mirrorgooglecontainers/$imageName:$imageVersion
docker tag  mirrorgooglecontainers/$imageName:$imageVersion k8s.gcr.io/$imageName:$imageVersion
docker save k8s.gcr.io/$imageName:$imageVersion > $imageName.tar
microk8s.ctr -n k8s.io image import $imageName.tar

視你開啟的插件而言,需要手動安裝需要的鏡像, 以我為例, 需要如下這些(注意版本可能不一樣)

k8s.gcr.io/pause:3.1
k8s.gcr.io/heapster-influxdb-amd64:v1.3.3
k8s.gcr.io/heapster-grafana-amd64:v4.4.3
k8s.gcr.io/heapster-amd64:v1.5.2
k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.3

gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.7
gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.7
gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.7

安裝腳本如下(可以根據原理做成通用腳本再傳參安裝):

docker pull mirrorgooglecontainers/pause:3.1
docker pull mirrorgooglecontainers/heapster-influxdb-amd64:v1.3.3
docker pull mirrorgooglecontainers/heapster-grafana-amd64:v4.4.3
docker pull mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.8.3
docker pull mirrorgooglecontainers/heapster-amd64:v1.5.2
docker pull mirrorgooglecontainers/k8s-dns-dnsmasq-nanny-amd64:1.14.7
docker pull mirrorgooglecontainers/k8s-dns-kube-dns-amd64:1.14.7
docker pull mirrorgooglecontainers/k8s-dns-sidecar-amd64:1.14.7

docker tag mirrorgooglecontainers/pause:3.1 k8s.gcr.io/pause:3.1
docker tag mirrorgooglecontainers/heapster-influxdb-amd64:v1.3.3 k8s.gcr.io/heapster-influxdb-amd64:v1.3.3
docker tag mirrorgooglecontainers/heapster-grafana-amd64:v4.4.3 k8s.gcr.io/heapster-grafana-amd64:v4.4.3
docker tag mirrorgooglecontainers/kubernetes-dashboard-amd64:v1.8.3 k8s.gcr.io/kubernetes-dashboard-amd64:v1.8.3
docker tag mirrorgooglecontainers/heapster-amd64:v1.5.2 k8s.gcr.io/heapster-amd64:v1.5.2
docker tag mirrorgooglecontainers/k8s-dns-dnsmasq-nanny-amd64:1.14.7 gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64:1.14.7
docker tag mirrorgooglecontainers/k8s-dns-kube-dns-amd64:1.14.7 gcr.io/google_containers/k8s-dns-kube-dns-amd64:1.14.7
docker tag mirrorgooglecontainers/k8s-dns-sidecar-amd64:1.14.7 gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.7

docker save k8s.gcr.io/pause > pause.tar
docker save k8s.gcr.io/heapster-influxdb-amd64 > heapster-influxdb-amd64.tar
docker save k8s.gcr.io/heapster-grafana-amd64 > heapster-grafana-amd64.tar
docker save k8s.gcr.io/kubernetes-dashboard-amd64 > kubernetes-dashboard-amd64.tar
docker save k8s.gcr.io/heapster-amd64 > heapster-amd64.tar
docker save gcr.io/google_containers/k8s-dns-dnsmasq-nanny-amd64 > k8s-dns-dnsmasq-nanny-amd64.tar
docker save gcr.io/google_containers/k8s-dns-kube-dns-amd64 > k8s-dns-kube-dns-amd64.tar
docker save gcr.io/google_containers/k8s-dns-sidecar-amd64 > k8s-dns-sidecar-amd64.tar

microk8s.ctr -n k8s.io image import pause.tar
microk8s.ctr -n k8s.io image import heapster-influxdb-amd64.tar
microk8s.ctr -n k8s.io image import heapster-grafana-amd64.tar
microk8s.ctr -n k8s.io image import kubernetes-dashboard-amd64.tar
microk8s.ctr -n k8s.io image import heapster-amd64.tar
microk8s.ctr -n k8s.io image import k8s-dns-dnsmasq-nanny-amd64.tar
microk8s.ctr -n k8s.io image import k8s-dns-kube-dns-amd64.tar
microk8s.ctr -n k8s.io image import k8s-dns-sidecar-amd64.tar

遇到問題時先通過 microk8s.kubectr get pods 查看是否是RUNNING狀態, 如果不是,先按照上述方法解決鏡像問題

查看具體的鏡像版本時候可以通過 kubectl get pods --namespace=kube-system -o json |grep message直接過濾出錯誤消息

注意namespace的選擇, 特別是你自己定義了namespace之后