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我想使用 Kubespray 安装 Kubernetes

TASK [download : container_download | Download containers if pull is required or told to always pull (all nodes)] **********************************************************
Tuesday 03 July 2018  14:30:59 +0600 (0:00:00.042)       0:00:59.584 **********
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (4 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (4 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (3 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (3 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (2 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (2 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (1 retries left).
FAILED - RETRYING: container_download | Download containers if pull is required or told to always pull (all nodes) (1 retries left).
fatal: [kz-k8snd02]: FAILED! => {"attempts": 4, "changed": true, "cmd": ["/usr/bin/docker", "pull", "gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.10"], "delta": "0:00:32.324328", "end": "2018-07-03 14:34:03.278500", "msg": "non-zero return code", "rc": 1, "start": "2018-07-03 14:33:30.954172", "stderr": "error pulling image configuration: Get https://storage.googleapis.com/artifacts.google-containers.appspot.com/containers/images/sha256:8a7739f672b49db46e3a8d5cdf54df757b7559a00db9de210b4af1aa3397020f: dial tcp 74.125.205.128:443: i/o timeout", "stderr_lines": ["error pulling image configuration: Get https://storage.googleapis.com/artifacts.google-containers.appspot.com/containers/images/sha256:8a7739f672b49db46e3a8d5cdf54df757b7559a00db9de210b4af1aa3397020f: dial tcp 74.125.205.128:443: i/o timeout"], "stdout": "1.14.10: Pulling from google_containers/k8s-dns-sidecar-amd64\nff3a5c916c92: Already exists\n0bdda6b26fc8: Pulling fs layer", "stdout_lines": ["1.14.10: Pulling from google_containers/k8s-dns-sidecar-amd64", "ff3a5c916c92: Already exists", "0bdda6b26fc8: Pulling fs layer"]}
fatal: [kz-k8snd01]: FAILED! => {"attempts": 4, "changed": true, "cmd": ["/usr/bin/docker", "pull", "gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.10"], "delta": "0:00:32.528633", "end": "2018-07-03 14:34:11.672541", "msg": "non-zero return code", "rc": 1, "start": "2018-07-03 14:33:39.143908", "stderr": "error pulling image configuration: Get https://storage.googleapis.com/artifacts.google-containers.appspot.com/containers/images/sha256:8a7739f672b49db46e3a8d5cdf54df757b7559a00db9de210b4af1aa3397020f: dial tcp 74.125.205.128:443: i/o timeout", "stderr_lines": ["error pulling image configuration: Get https://storage.googleapis.com/artifacts.google-containers.appspot.com/containers/images/sha256:8a7739f672b49db46e3a8d5cdf54df757b7559a00db9de210b4af1aa3397020f: dial tcp 74.125.205.128:443: i/o timeout"], "stdout": "1.14.10: Pulling from google_containers/k8s-dns-sidecar-amd64\nff3a5c916c92: Already exists\n0bdda6b26fc8: Pulling fs layer", "stdout_lines": ["1.14.10: Pulling from google_containers/k8s-dns-sidecar-amd64", "ff3a5c916c92: Already exists", "0bdda6b26fc8: Pulling fs layer"]}

NO MORE HOSTS LEFT *********************************************************************************************************************************************************
        to retry, use: --limit @/root/kubespray/cluster.retry

Kubespray 2.5.0 版

如何解决问题？

4

1 回答 1

1

在您的输出中，"dial tcp 74.125.205.128:443: i/o timeout"，这意味着您在连接到此 IP 时遇到网络问题。也许您在无法访问 Internet 的专用网络中或在某个阻止 Google 服务的地方（例如中国）。

由于 kubespray 是一个无用的项目，有两种方法可以解决这个问题：

1.从其他镜像站点下载镜像

比如Alibaba Cloud（中国最大的云提供商）。Docker镜像都在这里：https ://dev.aliyun.com/search.html

图片地址google_containers/k8s-dns-sidecar-amd64：
https ://dev.aliyun.com/detail.html?spm=5176.1972343.2.2.CvJhAO&repoId=44875

您可以提取图像并重新标记它，然后您可以在本地使用它：

  docker pull registry.cn-hangzhou.aliyuncs.com/google_containers/k8s-dns-sidecar-amd64:1.14.10
  docker tag registry.cn-hangzhou.aliyuncs.com/google_containers/k8s-dns-sidecar-amd64:1.14.10 gcr.io/google_containers/k8s-dns-sidecar-amd64:1.14.10

但是有这么多图片，你可能有很多 k8s 节点，那是一个很棒的工作！
所以，会有另一种方法。

2. 利用 ansible 角色

角色中定义的所有变量都可以被覆盖。

在以下位置找到所有image_repoGoogle Cloud Registry roles/download/defaults/main.yml：

grep "image_repo:" ./roles/download/defaults/main.yml | grep "gcr.io"

然后将它们放在文件vars.yaml或其他名称中，替换gcr.io为registry.cn-hangzhou.aliyuncs.com：

mkdir -p inventory/mycluster/group_vars/k8s-cluster  

mv inventory/mycluster/group_vars/k8s-cluster.yml inventory/mycluster/group_vars/  

cat > inventory/mycluster/group_vars/k8s-cluster/vars.yml << EOF
hyperkube_image_repo: "registry.cn-hangzhou.aliyuncs.com/google-containers/hyperkube"
pod_infra_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/pause-amd64"
kubedns_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/k8s-dns-kube-dns-amd64"
dnsmasq_nanny_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/k8s-dns-dnsmasq-nanny-amd64"
dnsmasq_sidecar_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/k8s-dns-sidecar-amd64"
dnsmasqautoscaler_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/cluster-proportional-autoscaler-amd64"
kubednsautoscaler_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/cluster-proportional-autoscaler-amd64"
elasticsearch_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/elasticsearch"
fluentd_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/fluentd-elasticsearch"
kibana_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/kibana"
tiller_image_repo: "registry.cn-hangzhou.aliyuncs.com/kubernetes-helm/tiller"
registry_proxy_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/kube-registry-proxy"
ingress_nginx_default_backend_image_repo: "registry.cn-hangzhou.aliyuncs.com/google_containers/defaultbackend"
EOF

最后，运行你的剧本

ansible-playbook -i inventory/mycluster/hosts.ini cluster.yml

同样，如果您无法从Docker Hub下载图像，您应该更改Docker Hub的图像 url并将它们添加到vars.yaml并重新运行您的 playbook：

istio_statsd_image_repo: registry.docker-cn.com/prom/statsd-exporter
install_socat_image_repo: registry.docker-cn.com/"xueshanf/install-socat"
weave_kube_image_repo: registry.docker-cn.com/"weaveworks/weave-kube"
weave_npc_image_repo: registry.docker-cn.com/"weaveworks/weave-npc"
contiv_image_repo: registry.docker-cn.com/"contiv/netplugin"
contiv_auth_proxy_image_repo: registry.docker-cn.com/"contiv/auth_proxy"
nginx_image_repo: registry.docker-cn.com/nginx
dnsmasq_image_repo: registry.docker-cn.com/"andyshinn/dnsmasq"
test_image_repo: registry.docker-cn.com/busybox
helm_image_repo: registry.docker-cn.com/"lachlanevenson/k8s-helm"
vault_image_repo: registry.docker-cn.com/"vault"
registry_image_repo: registry.docker-cn.com/"registry"

上述方法不是在网络阻塞区域下载图像的最佳方法。最好的办法是有一个VPS，使用docker registryor设置一个代理neuxs 3.x，让它代理https://gcr.io、<code>https://quay.io和https://registry-1.docker.io.

于 2018-08-31T10:05:34.183 回答