我一直在努力解决这个问题，而且我没有选择。我已经阅读了有关谷歌类似情况的所有内容，此处有关于堆栈的功能。但似乎没有任何效果。 在出现问题之前我已经完成了很少的部署。 在我取下服务器并重新开始之前，我想看看这里是否有人可以帮助我。
我还没有域名，但我的计划是在IP：地址上运行它以进行测试。
这是/etc/nginx/sites-enabled/default
server {
listen 80;
listen [::]:80 default_server ipv6only=on;
passenger_enabled on;
rails_env production;
root /home/deploy/my_app/shared/public;
# redirect server error pages to the static page /50x.html
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
注意：我对root /home/deploy/my_app/shared/public;行做了很多更改。例如/home/deploy/my_app/current/public;提供404错误
当我执行cap production deploy部署停止时，此处是来自cap production deploy --trace
** Execute deploy:migrate
00:22 deploy:migrate
[deploy:migrate] Run `rake db:migrate`
** Invoke deploy:migrating (first_time)
** Invoke deploy:set_rails_env
** Execute deploy:migrating
00:22 deploy:migrating
01 $HOME/.rbenv/bin/rbenv exec bundle exec rake db:migrate
01 rake aborted!
01 PG::ConnectionBad: could not connect to server: Connection refused
01 Is the server running on host "138.68.133.93" and accepting
01 TCP/IP connections on port 5432?
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `initiali…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `new'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:651:in `connect'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:242:in `initiali…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `new'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/postgresql_adapter.rb:44:in `postgresq…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:438:in `ne…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:448:in `ch…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:422:in `ac…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:349:in `bl…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:348:in `ch…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:263:in `bl…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:262:in `co…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:571:in `re…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_handling.rb:113:in `retrieve_connection'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/connection_handling.rb:87:in `connection'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/migration.rb:916:in `initialize'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/migration.rb:823:in `new'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/migration.rb:823:in `up'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/migration.rb:801:in `migrate'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/tasks/database_tasks.rb:137:in `migrate'
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/activerecord-4.2.5/lib/active_record/railties/databases.rake:44:in `block (2 levels) in <top (r…
01 /home/deploy/circular_ems/shared/bundle/ruby/2.3.0/gems/rake-12.0.0/exe/rake:27:in `<top (required)>'
01 /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `load'
01 /home/deploy/.rbenv/versions/2.3.1/bin/bundle:23:in `<main>'
01 Tasks: TOP => db:migrate
01 (See full trace by running task with --trace)
cap aborted!
SSHKit::Runner::ExecuteError: Exception while executing as deploy@138.68.133.93: Exception while executing as deploy@138.68.133.93: rake exit status: 1
rake stdout: Nothing written
rake stderr: rake aborted!
PG::ConnectionBad: could not connect to server: Connection refused
Is the server running on host "138.68.133.93" and accepting
TCP/IP connections on port 5432?
以下是/etc/postgresql/9.5/main# nano postgresql.conf
# - Connection Settings -
#listen_addresses = 'localhost' # what IP address(es) to listen on;
# comma-separated list of addresses;
# defaults to 'localhost'; use '*' for all
# (change requires restart)
port = 5432 # (change requires restart)
max_connections = 100 # (change requires restart)
#superuser_reserved_connections = 3 # (change requires restart)
unix_socket_directories = '/var/run/postgresql' # comma-separated list of directories
# (change requires restart)
#unix_socket_group = '' # (change requires restart)
#unix_socket_permissions = 0777 # begin with 0 to use octal notation
# (change requires restart)
#bonjour = off # advertise server via Bonjour
# (change requires restart)
#bonjour_name = '' # defaults to the computer name
# (change requires restart)
# - Security and Authentication -
#authentication_timeout = 1min # 1s-600s
ssl = true # (change requires restart)
#ssl_ciphers = 'HIGH:MEDIUM:+3DES:!aNULL' # allowed SSL ciphers
# (change requires restart)
#ssl_prefer_server_ciphers = on # (change requires restart)
#ssl_ecdh_curve = 'prime256v1' # (change requires restart)
ssl_cert_file = '/etc/ssl/certs/ssl-cert-snakeoil.pem' # (change requires restart)
ssl_key_file = '/etc/ssl/private/ssl-cert-snakeoil.key' # (change requires restart)
#ssl_ca_file = '' # (change requires restart)
#ssl_crl_file = '' # (change requires restart)
#password_encryption = on
#db_user_namespace = off
#row_security = on
# GSSAPI using Kerberos
#krb_server_keyfile = ''
#krb_caseins_users = off
# - TCP Keepalives -
# see "man 7 tcp" for details
#tcp_keepalives_idle = 0 # TCP_KEEPIDLE, in seconds;
# 0 selects the system default
#tcp_keepalives_interval = 0 # TCP_KEEPINTVL, in seconds;
# 0 selects the system default
#tcp_keepalives_count = 0 # TCP_KEEPCNT;
# 0 selects the system default