elasticsearch:v5.5.1-1和 fluentd-elasticsearch:v2.0.1下载镜像失败 imagePullBackOff的解决方法，其他镜像类似 问题：发现镜像错误：imagePullBackOff 查看容器在哪台主机上运行，查看命令 kubectl get pods -n kube-system -o wide 
查看具体错误原因：原来是镜像下载是失败， 使用Kubelet describe 查看日志，一定要带上 命名空间 kubectl describe pod fluentd-es-v2.0.1-7tgw6 --namespace kube-system 报错： Failed to pull image "gcr.io/google-containers/fluentd-elasticsearch:v2.0.1": rpc error: code = Unknown desc = Error response from daemon: Get https://gcr.io/v2/: net/http: request canceled while waiting for connection gcr.io被防火墙屏蔽了，那就换个国内地方去下载（这里找到2个地方都可以），再下载： docker pull mirrorgooglecontainers/fluentd-elasticsearch:v2.0.1 |
（或者 docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/fluentd-elasticsearch:v2.0.1
重新打上标签： docker tag docker.io/mirrorgooglecontainers/fluentd-elasticsearch:v2.0.1 gcr.io/google-containers/fluentd-elasticsearch:v2.0.1 查看docker images 查看容器是否起来 kubectl get pods -n kube-system -o wide 都running了，成功 其他： |
安装这些需要*
k8s.gcr.io/kube-apiserver:v1.14.0
k8s.gcr.io/kube-controller-manager:v1.14.0
k8s.gcr.io/kube-scheduler:v1.14.0
k8s.gcr.io/kube-proxy:v1.14.0
k8s.gcr.io/pause:3.1
k8s.gcr.io/etcd:3.3.10
k8s.gcr.io/coredns:1.3.1
不能*换个方法变通处理一下
docker pull mirrorgooglecontainers/kube-apiserver:v1.14.0
docker pull mirrorgooglecontainers/kube-controller-manager:v1.14.0
docker pull mirrorgooglecontainers/kube-scheduler:v1.14.0
docker pull mirrorgooglecontainers/kube-proxy:v1.14.0
docker pull mirrorgooglecontainers/pause:3.1
docker pull mirrorgooglecontainers/etcd:3.3.10
docker pull coredns/coredns:1.3.1
在重新给下载的打个tag
docker tag docker.io/mirrorgooglecontainers/kube-apiserver:v1.14.0 k8s.gcr.io/kube-apiserver:v1.14.0
docker tag docker.io/mirrorgooglecontainers/kube-controller-manager:v1.14.0 k8s.gcr.io/kube-controller-manager:v1.14.0
docker tag docker.io/mirrorgooglecontainers/kube-scheduler:v1.14.0 k8s.gcr.io/kube-scheduler:v1.14.0
docker tag docker.io/mirrorgooglecontainers/kube-proxy:v1.14.0 k8s.gcr.io/kube-proxy:v1.14.0
docker tag docker.io/mirrorgooglecontainers/pause:3.1 k8s.gcr.io/pause:3.1
docker tag docker.io/mirrorgooglecontainers/etcd:3.3.10 k8s.gcr.io/etcd:3.3.10
docker tag docker.io/coredns/coredns:1.3.1 k8s.gcr.io/coredns:1.3.1
这样就不需要*下载了。
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