如何使用Chef预编译资产？ [英] How to precompile assets with Chef?
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问题描述
OpsWorks不会在部署时预编译资产。我在此线程中找到了这个食谱，但我认为它还不完整，或者缺少一些东西，因为我收到关于找不到 release_path 的错误。
OpsWorks isn't precompiling assets on deploy. I found this recipe in this thread but I think it's not complete though, or missing something because I get an error about release_path not being found.
precompile.rb：
Chef::Log.info("Running deploy/before_migrate.rb...")
Chef::Log.info("Symlinking #{release_path}/public/assets to #{new_resource.deploy_to}/shared/assets")
link "#{release_path}/public/assets" do
to "#{new_resource.deploy_to}/shared/assets"
end
rails_env = new_resource.environment["RAILS_ENV"]
Chef::Log.info("Precompiling assets for RAILS_ENV=#{rails_env}...")
execute "rake assets:precompile" do
cwd release_path
command "bundle exec rake assets:precompile"
environment "RAILS_ENV" => rails_env
end
日志：
undefined local variable or method `release_path' for ....
有什么想法吗？我一点都不了解Chef，并且试图即时解决这个问题。
Any ideas? I do not know Chef at all and am trying to figure this out on the fly.
推荐答案
在OpsWorks支持Asset Pipeline之前在盒子里，你可以做到这一点。
在rails应用程序中创建具有以下内容的文件 deploy / before_symlink.rb 。
Before OpsWorks supports the Asset Pipeline out of the box, you could do this.
Create a file deploy/before_symlink.rb with the following content in your rails application.
run "cd #{release_path} && RAILS_ENV=production bundle exec rake assets:precompile"
如果将Rails应用程序部署到其他环境，则更改RAILS_ENV。
If you deploy your Rails application to a different environment, change the RAILS_ENV.
如果使用NGINX / Unicorn堆栈，则必须修改 / assets 资源。
只需将以下内容复制到食谱中名为 unicorn / templates / default / nginx_unicorn_web_app.erb 的文件中即可。
If you use a NGINX/Unicorn stack, you have to modify the /assets resource.
Just copy the following content in a file named unicorn/templates/default/nginx_unicorn_web_app.erb in your cookbooks.
upstream unicorn_<%= @application[:domains].first %> {
server unix:<%= @application[:deploy_to]%>/shared/sockets/unicorn.sock fail_timeout=0;
}
server {
listen 80;
server_name <%= @application[:domains].join(" ") %> <%= node[:hostname] %>;
access_log <%= node[:nginx][:log_dir] %>/<%= @application[:domains].first %>.access.log;
keepalive_timeout 5;
root <%= @application[:absolute_document_root] %>;
<% if @application[:nginx] && @application[:nginx][:client_max_body_size] %>
client_max_body_size <%= @application[:nginx][:client_max_body_size] %>;
<% end %>
location / {
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
# If you don't find the filename in the static files
# Then request it from the unicorn server
if (!-f $request_filename) {
proxy_pass http://unicorn_<%= @application[:domains].first %>;
break;
}
}
location /nginx_status {
stub_status on;
access_log off;
allow 127.0.0.1;
deny all;
}
location ~ ^/assets/ {
expires 1y;
add_header Cache-Control public;
add_header ETag "";
break;
}
error_page 500 502 503 504 /500.html;
location = /500.html {
root <%= @application[:absolute_document_root] %>;
}
}
<% if @application[:ssl_support] %>
server {
listen 443;
server_name <%= @application[:domains].join(" ") %> <%= node[:hostname] %>;
access_log <%= node[:nginx][:log_dir] %>/<%= @application[:domains].first %>-ssl.access.log;
ssl on;
ssl_certificate /etc/nginx/ssl/<%= @application[:domains].first %>.crt;
ssl_certificate_key /etc/nginx/ssl/<%= @application[:domains].first %>.key;
<% if @application[:ssl_certificate_ca] -%>
ssl_client_certificate /etc/nginx/ssl/<%= @application[:domains].first %>.ca;
<% end -%>
keepalive_timeout 5;
root <%= @application[:absolute_document_root] %>;
<% if @application[:nginx] && @application[:nginx][:client_max_body_size] %>
client_max_body_size <%= @application[:nginx][:client_max_body_size] %>;
<% end %>
location / {
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $http_host;
proxy_redirect off;
# If you don't find the filename in the static files
# Then request it from the unicorn server
if (!-f $request_filename) {
proxy_pass http://unicorn_<%= @application[:domains].first %>;
break;
}
}
location ~ ^/assets/ {
expires 1y;
add_header Cache-Control public;
add_header ETag "";
break;
}
error_page 500 502 503 504 /500.html;
location = /500.html {
root <%= @application[:absolute_document_root] %>;
}
}
<% end %>
如果使用Apache2 / Passenger堆栈，则必须修改 /资产资源。
只需将以下内容复制到食谱中名为 的文件中。
passenger_apache2 / templates / default / web_app.conf.erb
If you use a Apache2/Passenger stack, you have to modify the /assets resource.
Just copy the following content in a file named
passenger_apache2/templates/default/web_app.conf.erb in your cookbooks.
<VirtualHost *:80>
ServerName <%= @params[:server_name] %>
<% if @params[:server_aliases] && !@params[:server_aliases].empty? -%>
ServerAlias <% @params[:server_aliases].each do |a| %><%= "#{a}" %> <% end %>
<% end -%>
<% if @params[:mounted_at] -%>
DocumentRoot /var/www
<%= @params[:deploy][:passenger_handler] -%>BaseURI <%= @params[:mounted_at] %>
<% else -%>
DocumentRoot <%= @params[:docroot] %>
<%= @params[:deploy][:passenger_handler] -%>BaseURI /
<% end -%>
<%= @params[:deploy][:passenger_handler] -%>Env <%= @params[:rails_env] %>
<Directory <%= @params[:docroot] %>>
Options FollowSymLinks
AllowOverride None
Order allow,deny
Allow from all
</Directory>
<Directory ~ "\.svn">
Order allow,deny
Deny from all
</Directory>
<Directory ~ "\.git">
Order allow,deny
Deny from all
</Directory>
<LocationMatch "^/assets/.*$">
Header unset ETag
FileETag None
# RFC says only cache for 1 year
ExpiresActive On
ExpiresDefault "access plus 1 year"
</LocationMatch>
LogLevel info
ErrorLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-error.log
CustomLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-access.log combined
CustomLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-ganglia.log ganglia
FileETag none
RewriteEngine On
Include <%= @params[:rewrite_config] %>*
RewriteLog <%= node[:apache][:log_dir] %>/<%= @application_name %>-rewrite.log
RewriteLogLevel 0
# Canonical host
#RewriteCond %{HTTP_HOST} !^<%= @params[:server_name] %> [NC]
#RewriteCond %{HTTP_HOST} !^$
#RewriteRule ^/(.*)$ http://<%= @params[:server_name] %>/$1 [L,R=301]
RewriteCond %{REQUEST_URI} !\.(css|gif|jpg|jpeg|png)$
RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
RewriteCond %{SCRIPT_FILENAME} !maintenance.html
RewriteRule ^.*$ /system/maintenance.html [L]
Include <%= @params[:local_config] %>*
</VirtualHost>
<% if node[:deploy][@application_name][:ssl_support] -%>
<VirtualHost *:443>
ServerName <%= @params[:server_name] %>
<% if @params[:server_aliases] && !@params[:server_aliases].empty? -%>
ServerAlias <% @params[:server_aliases].each do |a| %><%= "#{a}" %> <% end %>
<% end -%>
SSLEngine on
SSLProxyEngine on
SSLCertificateFile <%= node[:apache][:dir] %>/ssl/<%= @params[:server_name] %>.crt
SSLCertificateKeyFile <%= node[:apache][:dir] %>/ssl/<%= @params[:server_name] %>.key
<% if @params[:ssl_certificate_ca] -%>
SSLCACertificateFile <%= node[:apache][:dir] %>/ssl/<%= @params[:server_name] %>.ca
<% end -%>
SetEnvIf User-Agent ".*MSIE.*" nokeepalive ssl-unclean-shutdown downgrade-1.0 force-response-1.0
<% if @params[:mounted_at] -%>
DocumentRoot /var/www
<%= @params[:deploy][:passenger_handler] -%>BaseURI <%= @params[:mounted_at] %>
<% else -%>
DocumentRoot <%= @params[:docroot] %>
<%= @params[:deploy][:passenger_handler] -%>BaseURI /
<% end -%>
<%= @params[:deploy][:passenger_handler] -%>Env <%= @params[:rails_env] %>
<Directory <%= @params[:docroot] %>>
Options FollowSymLinks
AllowOverride All
Order allow,deny
Allow from all
</Directory>
<Directory ~ "\.svn">
Order allow,deny
Deny from all
</Directory>
<Directory ~ "\.git">
Order allow,deny
Deny from all
</Directory>
<LocationMatch "^/assets/.*$">
Header unset ETag
FileETag None
# RFC says only cache for 1 year
ExpiresActive On
ExpiresDefault "access plus 1 year"
</LocationMatch>
LogLevel info
ErrorLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-ssl-error.log
CustomLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-ssl-access.log combined
CustomLog <%= node[:apache][:log_dir] %>/<%= @params[:name] %>-ssl-ganglia.log ganglia
FileETag none
RewriteEngine On
Include <%= @params[:rewrite_config] %>-ssl*
RewriteLog <%= node[:apache][:log_dir] %>/<%= @application_name %>-ssl-rewrite.log
RewriteLogLevel 0
# Canonical host
#RewriteCond %{HTTP_HOST} !^<%= @params[:server_name] %> [NC]
#RewriteCond %{HTTP_HOST} !^$
#RewriteRule ^/(.*)$ http://<%= @params[:server_name] %>/$1 [L,R=301]
RewriteCond %{REQUEST_URI} !\.(css|gif|jpg|jpeg|png)$
RewriteCond %{DOCUMENT_ROOT}/system/maintenance.html -f
RewriteCond %{SCRIPT_FILENAME} !maintenance.html
RewriteRule ^.*$ /system/maintenance.html [L]
Include <%= @params[:local_config] %>-ssl*
</VirtualHost>
<% end -%>
如果您有任何疑问，请随时提问。
If you have questions feel free to ask.
最佳
丹尼尔
编辑：
或者您只需复制本食谱 https://github.com/neonlex/massive-octo-computing -machine 我发展很快。
，但OpsWorks将来应默认支持此功能。
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