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Enable HA deploy of kubeadm (#1658)

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* Enable HA deploy of kubeadm

* raise delay to 60s for starting gce hosts
This commit is contained in:
Matthew Mosesohn
2017-09-15 22:28:15 +01:00
committed by GitHub
parent b294db5aed
commit 8e731337ba
10 changed files with 88 additions and 15 deletions
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53
roles/kubernetes/master/tasks/kubeadm-setup.yml
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@@ -14,7 +14,7 @@
{{ apiserver_loadbalancer_domain_name }}
{%- endif %}
{%- for host in groups['kube-master'] -%}
{%- if hostvars[host]['access_ip'] is defined %}{{ hostvars[host]['access_ip'] }}{% endif -%}
{%- if hostvars[host]['access_ip'] is defined %}{{ hostvars[host]['access_ip'] }}{% endif %}
{{ hostvars[host]['ip'] | default(hostvars[host]['ansible_default_ipv4']['address']) }}
{%- endfor %}
tags: facts
@@ -29,7 +29,54 @@
dest: "{{ kube_config_dir }}/kubeadm-config.yaml"
register: kubeadm_config
- name: kubeadm | Initialize cluster
- name: Check if kubeadm has already run
stat:
path: "{{ kube_config_dir }}/admin.conf"
register: admin_conf
- name: kubeadm | Initialize first master
command: timeout -k 240s 240s kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --skip-preflight-checks
register: kubeadm_init
when: kubeadm_config.changed
#Retry is because upload config sometimes fails
retries: 3
when: inventory_hostname == groups['kube-master']|first and (kubeadm_config.changed or not admin_conf.stat.exists)
- name: slurp kubeadm certs
slurp:
src: "{{ item }}"
with_items:
- "{{ kube_cert_dir }}/apiserver.crt"
- "{{ kube_cert_dir }}/apiserver.key"
- "{{ kube_cert_dir }}/apiserver-kubelet-client.crt"
- "{{ kube_cert_dir }}/apiserver-kubelet-client.key"
- "{{ kube_cert_dir }}/ca.crt"
- "{{ kube_cert_dir }}/ca.key"
- "{{ kube_cert_dir }}/front-proxy-ca.crt"
- "{{ kube_cert_dir }}/front-proxy-ca.key"
- "{{ kube_cert_dir }}/front-proxy-client.crt"
- "{{ kube_cert_dir }}/front-proxy-client.key"
- "{{ kube_cert_dir }}/sa.key"
- "{{ kube_cert_dir }}/sa.pub"
register: kubeadm_certs
delegate_to: "{{ groups['kube-master']|first }}"
run_once: true
- name: write out kubeadm certs
copy:
dest: "{{ item.item }}"
content: "{{ item.content | b64decode }}"
owner: root
group: root
mode: 0700
no_log: true
register: copy_kubeadm_certs
with_items: "{{ kubeadm_certs.results }}"
when: inventory_hostname != groups['kube-master']|first
- name: kubeadm | Initialize other masters
command: timeout -k 240s 240s kubeadm init --config={{ kube_config_dir }}/kubeadm-config.yaml --skip-preflight-checks
register: kubeadm_init
#Retry is because upload config sometimes fails
retries: 3
when: inventory_hostname != groups['kube-master']|first and (kubeadm_config.changed or not admin_conf.stat.exists or copy_kubeadm_certs.changed)