[英]k8s with kubespray fails at dns config
My k8s with kubespray always bails out at the following error "Too many nameservers. You can relax this check by set docker_dns_servers_strict=no and we will only use the first 3
我的带有 kubespray 的 k8s 总是在出现以下错误
"Too many nameservers. You can relax this check by set docker_dns_servers_strict=no and we will only use the first 3
In my cluster.yml I have this under - hosts
- docker_dns_servers_strict: no
but I still get the error.在我的 cluster.yml 我有这个
- hosts
- docker_dns_servers_strict: no
但我仍然收到错误。 What am I missing?我错过了什么?
对我来说,它与添加-e 'docker_dns_servers_strict=no'
:
ansible-playbook -i ../inventories/kubernetes.yaml --become --become-user=root cluster.yml -e 'docker_dns_servers_strict=no'
As explained here , check the format of your yaml file.如此处所述,请检查您的 yaml 文件的格式。
Here is one example:这是一个例子:
- hosts: k8s-cluster:etcd:calico-rr
any_errors_fatal: "{{ any_errors_fatal | default(true) }}"
vars:
- docker_dns_servers_strict: no
roles:
- { role: kubespray-defaults}
- { role: kernel-upgrade, tags: kernel-upgrade, when: kernel_upgrade is defined and kernel_upgrade }
- { role: kubernetes/preinstall, tags: preinstall }
- { role: docker, tags: docker }
- role: rkt
tags: rkt
when: "'rkt' in [etcd_deployment_type, kubelet_deployment_type, vault_deployment_type]"
As mentioned in this issue :如本期所述:
This usually happens if you configure one set of dns servers on the servers before you run the kubespray role .
如果在运行 kubespray 角色之前在服务器上配置一组 dns 服务器,通常会发生这种情况。
In my case I added docker_dns_servers_strict: false
in the all.yaml file.就我而言,我在all.yaml文件中添加了
docker_dns_servers_strict: false
。 It's solved my problem.它解决了我的问题。
below worked for my installation by trimming the nameserver to max 6下面通过将名称服务器修剪为最大 6 来为我的安装工作
added it in roles/container-engine/docker/tasks/set_facts_dns.yml just below trim the nameserver将它添加到角色/容器引擎/docker/tasks/set_facts_dns.yml正下方修剪名称服务器
- name: rtrim number of numbers of search domain to 6
set_fact:
docker_dns_search_domains: "{{ docker_dns_search_domains[0:6] }}"
when: docker_dns_search_domains|length > 6
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