gitee.com/woood2/luca@v1.0.4/deployments/consul-template.md (about)

     1  
     2  ### 安装
     3  ```
     4  [linux]
     5  
     6  wget https://releases.hashicorp.com/consul-template/0.20.0/consul-template_0.20.0_linux_amd64.tgz
     7  tar -zxvf consul-template_0.20.0_linux_amd64.tgz
     8  sudo mv consul-template /usr/local/bin/
     9  consul-template -v
    10  
    11  [macos]
    12  
    13  wget https://releases.hashicorp.com/consul-template/0.30.0/consul-template_0.30.0_darwin_amd64.zip
    14  unzip consul-template_0.30.0_darwin_amd64.zip
    15  sudo mv consul-template /usr/local/bin/
    16  consul-template -v
    17  ```
    18  
    19  ### luca_backend.ctmpl
    20  ```
    21  upstream luca_backend {
    22  
    23  {{range service "luca_backend.luca_backend@dc1"}}
    24  
    25  server {{.Address}}:{{.Port}} weight=1;
    26  
    27  {{end}}
    28  
    29  }
    30  ```
    31  
    32  ### 执行命令，watch变化
    33  ```
    34  consul-template --consul-addr {ip}:8500 --template ./luca_backend.ctmpl:./dst:"cat ./dst"
    35  ```
    36  
    37  ### 输出
    38  ```
    39  # 实例1 上线
    40  upstream luca_backend {
    41  server {ip1}:8080 weight=1;
    42  }
    43  
    44  # 实例2 上线
    45  upstream luca_backend {
    46  server {ip1}:8080 weight=1;
    47  server {ip2}:8080 weight=1;
    48  }
    49  
    50  # 实例1 下线
    51  upstream luca_backend {
    52  server {ip2}:8080 weight=1;
    53  }
    54  
    55  # 实例2 下线
    56  upstream luca_backend {
    57  
    58  }
    59  ```