在安装脚本中传递变量

Question

我搜索过，但找到的答案都对我没用。我有一个在用户帐户下运行的安装脚本，它要求输入几个变量，除了我的 nginx 配置外，每个文件都可以正常写入。无论我怎么尝试，我都无法让它为我传递变量。

sudo -E bash -c 'cat > /etc/nginx/sites-available/pterodactyl.conf' <<-'EOF'
server {
    listen 80;
    listen [::]:80;
    server_name '$SERVNAME';

    root "/var/www/pterodactyl/html/public";
    index index.html index.htm index.php;
    charset utf-8;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    access_log off;
    error_log  /var/log/nginx/pterodactyl.app-error.log error;

    # allow larger file uploads and longer script runtimes
        client_max_body_size 100m;
    client_body_timeout 120s;

    sendfile off;

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_intercept_errors off;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
    }

    location ~ /\.ht {
        deny all;
    }
    location ~ /.well-known {
        allow all;
    }
}
EOF

Answer 1

当您在单引号中使用 heredoc 时EOF，实际上会禁用 EOF 之间的任何替换。 在您的案例中启用替换会破坏nginx诸如 之类的变量$fastcgi_script_name，因此请尝试下面的解决方案

这应该有效：

#!/bin/bash

SERVNAME='example.com'

echo '
server {
    listen 80;
    listen [::]:80;
    server_name '"'${SERVNAME}'"';

    root "/var/www/pterodactyl/html/public";
    index index.html index.htm index.php;
    charset utf-8;

    location / {
        try_files $uri $uri/ /index.php?$query_string;
    }

    location = /favicon.ico { access_log off; log_not_found off; }
    location = /robots.txt  { access_log off; log_not_found off; }

    access_log off;
    error_log  /var/log/nginx/pterodactyl.app-error.log error;

    # allow larger file uploads and longer script runtimes
        client_max_body_size 100m;
    client_body_timeout 120s;

    sendfile off;

    location ~ \.php$ {
        fastcgi_split_path_info ^(.+\.php)(/.+)$;
        fastcgi_pass unix:/var/run/php/php7.0-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        fastcgi_intercept_errors off;
        fastcgi_buffer_size 16k;
        fastcgi_buffers 4 16k;
        fastcgi_connect_timeout 300;
        fastcgi_send_timeout 300;
        fastcgi_read_timeout 300;
    }

    location ~ /\.ht {
        deny all;
    }
    location ~ /.well-known {
        allow all;
    }
}
' | sudo -E tee /etc/nginx/sites-available/pterodactyl.conf >/dev/null 2>&1