#9. Some useful heroku commands

-

Heroku commands

sudo snap install --classic heroku

heroku login

heroku create

git config --list --local | grep heroku

git push heroku main

heroku run rake db:migrate

heroku apps:rename kamb2017

heroku ps:scale web=1

heroku ps

heroku open

heroku logs

heroku logs --tail

heroku run rails console

heroku config - view 

heroku config:set MY_PASS=secret - set

heroku config:get MY_PASS - view

heroku config:unset MY_PASS - remove

heroku config -a rk-rails-app - list all environment variables

heroku apps - list all the heroku apps

 heroku config -a rk-rails-app --json - list all environment variables in json format

heroku run -a rk-rails-app printenv - print environment variables


Comments

Post a Comment

Let me know for any query..

Popular posts from this blog

#6. Fetch time in rails

-
 In the Rails do not prefer to use Time.now, Date.today etc We should always prefer to use it with zone like, Time.zone.now, Time.zone.today etc. but why so? Beacause when we fetch Time.now its always return system local time and ignore  config.time_zone  set in the  application.rb. file. Here is the example tested in the rails console, 3.0.3 :001 > Time.now  => 2022-04-19 09:57:58.413034249 +0530  3.0.3 :002 > Time.zone  => #<ActiveSupport::TimeZone:0x000055704feec360 @name="UTC", @tzinfo=#<TZInfo::DataTimezone: Etc/UTC>, @utc_offset=nil>  3.0.3 :003 > Time.zone.now  => Tue, 19 Apr 2022 04:28:07.277000358 UTC +00:00  3.0.3 :004 > Time.zone = 'Sydney'  => "Sydney"  3.0.3 :005 > Time.zone  => #<ActiveSupport::TimeZone:0x000055705192d850 @name="Sydney", @tzinfo=#<TZInfo::DataTimezone: Australia/Sydney>, @utc_offset=nil>  3.0.3 :008 > Time.now  => 2022...
Read more

#8. nginx+puma deployment using capistrano

-
 In the Gemfile, ---------------------------------------- group :development do   gem 'capistrano',         require: false   gem 'capistrano-rvm',     require: false   gem 'capistrano-rails',   require: false   gem 'capistrano-bundler', require: false   gem 'capistrano3-puma',   require: false end -------------------------------------------------- bundle install cap install create a file as,  /home/raj/workspace/chat/config/nginx.conf ------------------------------------------------ upstream puma {   server unix:///home/raj/deployed_apps/chat/shared/tmp/sockets/chat-puma.sock; } server {   listen 80 default_server deferred;   # server_name example.com;   root /home/raj/deployed_apps/chat/current/public;   access_log /home/raj/deployed_apps/chat/current/log/nginx.access.log;   error_log /home/raj/deployed_apps/chat/current/log/nginx.error.log info;   location ...
Read more

#21. Rails scope

-
Author has_many books books belongs_to author Named Scope scope :available, -> { where(available: true) } select 'books'.* from books where books.available = 't' scope :unavailable, -> { where(available: [nil, false]) } select 'books'.* from books where books.available = 'f' or books.available is null scope :public_status, -> { where(status:  'public') } 3.1.2 :004 > Article.public_status   Article Load (0.2ms)  SELECT "articles".* FROM "articles" WHERE "articles"."status" = ? AND "articles"."status" = ?  [["status", "public"], ["status", "public"]] Here two times same status(‘public’) checked because one of the default scope and one of the named scope( public_status ). Author.joins(:books).merge(Book.available) select authors.* from authors inner join books on books.author_id=authors.id where books.available = 't' We can achi...
Read more