这是我第一次部署rails应用，我发现这个过程非常令人沮丧。由于工作原因，我们使用的是Rackspace云计算，Ubuntu 12.04 LTS（Precise Pangolin）和MYSQL，而不是Heroku路线。
我已经想了2天多，终于向社区求助。目前我得到的是 "404 Not Found Error on my server"（在我的服务器上找不到错误）。
我关注了Ryan的 "部署到VPS"、"Capistrano Recipes "的屏幕直播。本教程和其他在谷歌等，我仍然没有完全达到。
我设法安装了以下内容。
我很确定我的Capistrano Deployer在这里遗漏了一些简单的东西。
require "bundler/capistrano"
server "198.101.242.242", :web, :app, :db, primary: true
set :application, "myapp"
set :user, "deployer"
set :deploy_to, "/home/#{user}/#{application}"
set :deploy_via, :remote_cache
set :use_sudo, false
set :scm, "git"
set :repository, "[email protected]:xxxx/#{application}.git"
set :branch, "master"
default_run_options[:pty] = true
ssh_options[:forward_agent] = true
# if you want to clean up old releases on each deploy uncomment this:
after "deploy", "deploy:cleanup"
# if you're still using the script/reaper helper you will need
# these http://github.com/rails/irs_process_scripts
# If you are using Passenger mod_rails uncomment this:
namespace :deploy do
task :start do ; end
task :stop do ; end
task :restart, :roles => :app, :except => { :no_release => true } do
run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
end
end
在部署前我是否应该做一些事情？
下面是Nginx的错误日志。
2012/09/16 23:22:17 [error] 13939#0: *1 "/home/deployer/myapp/public/index.html" is not found (2: No such file or directory), client: ip, server: localhost, request: "GET / HTTP/1.1", host: "ip"
2012/09/16 23:22:17 [error] 13939#0: *1 open() "/home/deployer/myapp/public/favicon.ico" failed (2: No such file or directory), client: ip, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "65.61.189.109"
2012/09/16 23:22:19 [error] 13939#0: *1 "/home/deployer/myapp/public/index.html" is not found (2: No such file or directory), client: ip, server: localhost, request: "GET / HTTP/1.1", host: "ip"
2012/09/16 23:22:19 [error] 13939#0: *1 open() "/home/deployer/myapp/public/favicon.ico" failed (2: No such file or directory), client: ip, server: localhost, request: "GET /favicon.ico HTTP/1.1", host: "ip"
Nginx服务器配置文件。
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
passenger_root /home/deployer/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.17;
passenger_ruby /home/deployer/.rvm/wrappers/ruby-1.9.3-p194/ruby;
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 80;
server_name localhost;
location / {
root /home/deployer/myapp/public; # <--- be sure to point to 'public'!
}
passenger_enabled on;
# listen 80;
# server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
# location / {
# root html;
# index index.html index.htm;
# }
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# root html;
# }
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# server {
# listen 80;
# server_name localhost;
# location / {
# root /home/deployer/myapp/public; # <--- be sure to point to 'public'!
# }
# passenger_enabled on;
# }
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443;
# server_name localhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_timeout 5m;
# ssl_protocols SSLv2 SSLv3 TLSv1;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
谢谢。
好吧，所以我最终用试错的方式找出了问题，并从 牛肉干的 评论。
第一个问题是capistrano无法从我的应用程序中安装一些有依赖关系的gem。所以我在生产上安装了这些......特别是rvm capistrano gem和rmagick。RVM Capistrano gem是主要问题，也是我在depoloyed时出现错误的原因。rmagick 是在解决了 rvm 的问题之后出现的，我通过安装它的依赖程序解决了这个问题。
我遇到的第二个问题是指向我的应用程序文件夹myapppublic，而不是Nginx服务器配置文件中的当前版本myappcurrentpublic。所以我保留了现有的服务器块，并将我的设置放在里面，然后就可以了。以下是Nginx服务器配置文件的设置。
server {
listen 80;
server_name localhost;
root /home/deployer/banking_analytics/current/public; # <--- be sure to point to 'public'!
passenger_enabled on;
# listen 80;
# server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
# location / {
# root html;
# index index.html index.htm;
# }
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# root html;
# }
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# server {
# listen 80;
# server_name localhost;
# location / {
# root /home/deployer/banking_analytics/public; # <--- be sure to point to 'public'!
# }
# passenger_enabled on;
# }
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443;
# server_name localhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_timeout 5m;
# ssl_protocols SSLv2 SSLv3 TLSv1;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
我在第一次部署时也遇到了类似的错误。
在我的例子中，我在mod-http-passenger.conf文件中设置了一个错误的路径。
我的建议是在nginx设置中启用乘客友好的错误页面，以获得更多的错误信息。在某些情况下，它似乎比日志更好。
在服务器端
sudo vim /etc/nginx/sites-enabled/myApp
添加
passenger_friendly_error_pages on;