main.yml

- name: 下载 kube-master 二进制
  copy: src={{ base_dir }}/bin/{{ item }} dest={{ bin_dir }}/{{ item }} mode=0755
  with_items:
  - kube-apiserver
  - kube-controller-manager
  - kube-scheduler
  tags: upgrade_k8s

- name: 分发证书相关
  synchronize: src={{ ca_dir }}/{{ item }} dest={{ ca_dir }}/{{ item }}
  with_items:
  - admin.pem
  - admin-key.pem
  - ca.pem
  - ca-key.pem
  - ca-config.json
  delegate_to: "{{ groups.deploy[0] }}"

# 设置 kubernetes svc ip (一般是 SERVICE_CIDR 中第一个IP)
- name: 注册变量 KUBERNETES_SVC_IP
  shell: echo {{ SERVICE_CIDR }}|cut -d/ -f1|awk -F. '{print $1"."$2"."$3"."$4+1}'
  register: KUBERNETES_SVC_IP
  tags: change_cert

- name: 设置变量 CLUSTER_KUBERNETES_SVC_IP
  set_fact: CLUSTER_KUBERNETES_SVC_IP={{ KUBERNETES_SVC_IP.stdout }}
  tags: change_cert

- name: 创建 kubernetes 证书签名请求
  template: src=kubernetes-csr.json.j2 dest={{ ca_dir }}/kubernetes-csr.json
  tags: change_cert

- name: 创建 kubernetes 证书和私钥
  shell: "cd {{ ca_dir }} && {{ bin_dir }}/cfssl gencert \
        -ca={{ ca_dir }}/ca.pem \
        -ca-key={{ ca_dir }}/ca-key.pem \
        -config={{ ca_dir }}/ca-config.json \
        -profile=kubernetes kubernetes-csr.json | {{ bin_dir }}/cfssljson -bare kubernetes"
  tags: change_cert

# 创建aggregator proxy相关证书
- name: 创建 aggregator proxy证书签名请求
  template: src=aggregator-proxy-csr.json.j2 dest={{ ca_dir }}/aggregator-proxy-csr.json
  tags: upgrade_k8s

- name: 创建 aggregator-proxy证书和私钥
  shell: "cd {{ ca_dir }} && {{ bin_dir }}/cfssl gencert \
        -ca={{ ca_dir }}/ca.pem \
        -ca-key={{ ca_dir }}/ca-key.pem \
        -config={{ ca_dir }}/ca-config.json \
        -profile=kubernetes aggregator-proxy-csr.json | {{ bin_dir }}/cfssljson -bare aggregator-proxy"
  tags: upgrade_k8s

- block:
  - name: 生成 basic-auth 随机密码
    shell: 'PWD=`date +%s%N|md5sum|head -c16`; \
	sed -i "s/_pwd_/$PWD/g" {{ base_dir }}/roles/kube-master/defaults/main.yml; \
	echo $PWD;'
    connection: local
    register: TMP_PASS
    run_once: true
    tags: restart_master
    
  - name: 设置 basic-auth 随机密码
    set_fact: BASIC_AUTH_PASS="{{ TMP_PASS.stdout }}"
    tags: restart_master
  when: 'BASIC_AUTH_ENABLE == "yes" and BASIC_AUTH_PASS == "_pwd_"'
  
- name: 创建 basic-auth.csv
  template: src=basic-auth.csv.j2 dest={{ ca_dir }}/basic-auth.csv
  when: 'BASIC_AUTH_ENABLE == "yes"'
  tags: restart_master

# 为兼容v1.8版本，配置不同 kube-apiserver的systemd unit文件
- name: 获取 k8s 版本信息
  shell: "{{ bin_dir }}/kube-apiserver --version"
  register: k8s_ver
  tags: upgrade_k8s, restart_master

- name: 创建kube-apiserver的systemd unit文件
  template: src=kube-apiserver.service.j2 dest=/etc/systemd/system/kube-apiserver.service
  tags: upgrade_k8s, restart_master
  when: "'v1.8' not in k8s_ver.stdout"

- name: 创建kube-apiserver v1.8的systemd unit文件
  template: src=kube-apiserver-v1.8.service.j2 dest=/etc/systemd/system/kube-apiserver.service
  tags: upgrade_k8s, restart_master
  when: "'v1.8' in k8s_ver.stdout"

- name: 创建kube-controller-manager的systemd unit文件
  template: src=kube-controller-manager.service.j2 dest=/etc/systemd/system/kube-controller-manager.service
  tags: upgrade_k8s, restart_master

- name: 创建kube-scheduler的systemd unit文件
  template: src=kube-scheduler.service.j2 dest=/etc/systemd/system/kube-scheduler.service
  tags: upgrade_k8s, restart_master

- name: enable master 服务
  shell: systemctl enable kube-apiserver kube-controller-manager kube-scheduler
  ignore_errors: true

- name: 启动 master 服务
  shell: "systemctl daemon-reload && systemctl restart kube-apiserver && \
	systemctl restart kube-controller-manager && systemctl restart kube-scheduler"
  tags: upgrade_k8s, restart_master

- name: 以轮询的方式等待master服务启动完成
  command: "{{ bin_dir }}/kubectl get node"
  register: result
  until:    result.rc == 0
  retries:  5
  delay: 6
  delegate_to: "{{ groups.deploy[0] }}"
  run_once: True
  tags: upgrade_k8s, restart_master

- name: 配置{{ BASIC_AUTH_USER }}用户rbac权限
  template: src=basic-auth-rbac.yaml.j2 dest=/opt/kube/basic-auth-rbac.yaml
  when: 'BASIC_AUTH_ENABLE == "yes"'
  delegate_to: "{{ groups.deploy[0] }}"
  run_once: true
  tags: restart_master

- name: 创建{{ BASIC_AUTH_USER }}用户rbac权限
  shell: "{{ bin_dir }}/kubectl apply -f /opt/kube/basic-auth-rbac.yaml"
  when: 'BASIC_AUTH_ENABLE == "yes"'
  delegate_to: "{{ groups.deploy[0] }}"
  run_once: true
  tags: restart_master