main.yml

- name: prepare some dirs
  file: name={{ item }} state=directory
  with_items:
  - "{{ base_dir }}/.cluster/ssl"
  - "{{ base_dir }}/.cluster/backup"

- name: 本地设置 bin 目录权限
  file: path={{ base_dir }}/bin state=directory mode=0755 recurse=yes

# 注册变量p，根据p的stat信息判断是否已经生成过ca证书，如果没有，下一步生成证书
# 如果已经有ca证书，为了保证整个安装的幂等性，跳过证书生成的步骤
- name: 读取ca证书stat信息
  stat: path="{{ base_dir }}/.cluster/ssl/ca.pem"
  register: p

- name: 准备CA配置文件和签名请求
  template: src={{ item }}.j2 dest={{ base_dir }}/.cluster/ssl/{{ item }}
  with_items:
  - "ca-config.json"
  - "ca-csr.json"
  when: p.stat.isreg is not defined

- name: 生成 CA 证书和私钥
  when: p.stat.isreg is not defined
  shell: "cd {{ base_dir }}/.cluster/ssl && \
	 {{ base_dir }}/bin/cfssl gencert -initca ca-csr.json | {{ base_dir }}/bin/cfssljson -bare ca" 

#----------- 创建kubectl kubeconfig文件: /root/.kube/config
- block:
    - name: 删除原有kubeconfig
      file: path=/root/.kube/config state=absent
      ignore_errors: true
    
    - name: 下载 group:read rbac 文件
      copy: src=read-group-rbac.yaml dest=/tmp/read-group-rbac.yaml
      when: USER_NAME == "read"
    
    - name: 创建group:read rbac 绑定
      shell: "{{ base_dir }}/bin/kubectl apply -f /tmp/read-group-rbac.yaml"
      when: USER_NAME == "read"
    
    - name: 准备kubectl使用的{{ USER_NAME }}证书签名请求
      template: src={{ USER_NAME }}-csr.json.j2 dest={{ base_dir }}/.cluster/ssl/{{ USER_NAME }}-csr.json
    
    - name: 创建{{ USER_NAME }}证书与私钥
      shell: "cd {{ base_dir }}/.cluster/ssl && {{ base_dir }}/bin/cfssl gencert \
            -ca=ca.pem \
            -ca-key=ca-key.pem \
            -config=ca-config.json \
            -profile=kubernetes {{ USER_NAME }}-csr.json | {{ base_dir }}/bin/cfssljson -bare {{ USER_NAME }}"
    
    - name: 设置集群参数
      shell: "{{ base_dir }}/bin/kubectl config set-cluster {{ CLUSTER_NAME }} \
            --certificate-authority={{ base_dir }}/.cluster/ssl/ca.pem \
            --embed-certs=true \
            --server={{ KUBE_APISERVER }}"
    
    - name: 设置客户端认证参数
      shell: "{{ base_dir }}/bin/kubectl config set-credentials {{ USER_NAME }} \
            --client-certificate={{ base_dir }}/.cluster/ssl/{{ USER_NAME }}.pem \
            --embed-certs=true \
            --client-key={{ base_dir }}/.cluster/ssl/{{ USER_NAME }}-key.pem"
    
    - name: 设置上下文参数
      shell: "{{ base_dir }}/bin/kubectl config set-context {{ CONTEXT_NAME }} \
            --cluster={{ CLUSTER_NAME }} --user={{ USER_NAME }}"
    
    - name: 选择默认上下文
      shell: "{{ base_dir }}/bin/kubectl config use-context {{ CONTEXT_NAME }}"
  tags: create_kctl_cfg

#------------创建kube-proxy配置文件: kube-proxy.kubeconfig
- name: 准备kube-proxy 证书签名请求
  template: src=kube-proxy-csr.json.j2 dest={{ base_dir }}/.cluster/ssl/kube-proxy-csr.json

- name: 创建 kube-proxy证书与私钥
  shell: "cd {{ base_dir }}/.cluster/ssl && {{ base_dir }}/bin/cfssl gencert \
        -ca=ca.pem \
        -ca-key=ca-key.pem \
        -config=ca-config.json \
        -profile=kubernetes kube-proxy-csr.json | {{ base_dir }}/bin/cfssljson -bare kube-proxy"

- name: 设置集群参数
  shell: "{{ base_dir }}/bin/kubectl config set-cluster kubernetes \
        --certificate-authority={{ base_dir }}/.cluster/ssl/ca.pem \
        --embed-certs=true \
        --server={{ KUBE_APISERVER }} \
        --kubeconfig={{ base_dir }}/.cluster/kube-proxy.kubeconfig"
- name: 设置客户端认证参数
  shell: "{{ base_dir }}/bin/kubectl config set-credentials kube-proxy \
        --client-certificate={{ base_dir }}/.cluster/ssl/kube-proxy.pem \
        --client-key={{ base_dir }}/.cluster/ssl/kube-proxy-key.pem \
        --embed-certs=true \
        --kubeconfig={{ base_dir }}/.cluster/kube-proxy.kubeconfig"
- name: 设置上下文参数
  shell: "{{ base_dir }}/bin/kubectl config set-context default \
        --cluster=kubernetes \
        --user=kube-proxy \
        --kubeconfig={{ base_dir }}/.cluster/kube-proxy.kubeconfig"
- name: 选择默认上下文
  shell: "{{ base_dir }}/bin/kubectl config use-context default \
	--kubeconfig={{ base_dir }}/.cluster/kube-proxy.kubeconfig"

- name: 本地创建 easzctl 工具的软连接
  file: src={{ base_dir }}/tools/easzctl dest=/usr/bin/easzctl state=link

# ansible 控制端一些易用性配置
# 注册变量以判断是否容器化运行ansible控制端，如果容器化运行那么进程数小于20
- name: 注册变量以判断是否容器化运行ansible控制端
  shell: "ps aux|wc -l"
  register: procs

- name: ansible 控制端写入环境变量$PATH
  lineinfile:
    dest: ~/.bashrc
    state: present
    regexp: 'kubeasz'
    line: 'export PATH={{ base_dir }}/bin/:$PATH # generated by kubeasz'
  when: "procs.stdout|int > 50"
  ignore_errors: true

- name: ansible 控制端添加 kubectl 自动补全
  lineinfile:
    dest: ~/.bashrc
    state: present
    regexp: 'kubectl completion'
    line: 'source <(kubectl completion bash)'
  when: "procs.stdout|int > 50"
  ignore_errors: true

- name: ansible 控制端创建 kubectl 软链接
  file: src={{ base_dir }}/bin/kubectl dest=/usr/bin/kubectl state=link
  ignore_errors: true