Install jets via RubyGems.
gem install jets
Prerequisites and Dependencies
Jets supports Ruby 2.5 and Ruby 2.7, which are the Ruby versions supported by AWS Lambda. Patch variants of it should work. More details: Using Different Ruby Versions.
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.35.3/install.sh | bash # note follow the instructions after the curl command to source nvm nvm install v12.13.0 nvm alias default node # sets the default version
Once node is installed, install yarn with:
npm install -g yarn
You can use any version of yarn that works with webpacker. If you run into webpacker issues, try upgrading node and yarn to the latest version. Also, upgrading the
yarn.lock file with
yarn upgrade sometimes helps.
By default, when you run a
jets new command, Jets calls
bundle install and attempts to install the
mysql2 gem. If you want to use PostgreSQL, run
jets new --database=postgresql. Make sure that you have MySQL or PostgreSQL installed beforehand.
If you don’t need an ORM database adapter, or want to use another database, use the
jets new --no-database option. You can subsequently add any datastore adapter gem to the Gemfile, and run
Here are the instructions to install MySQL and PostgreSQL:
brew install mysql # macosx yum install -y mysql-devel # amazonlinux2 and redhat variants apt-get install -y libmysqlclient-dev # ubuntu and debian variants
brew install postgresql # macosx yum install -y postgresql-devel # amazonlinux2 and redhat variants apt-get install libpq-dev # ubuntu and debian variants
The AWS CLI is required. You can install the AWS CLI. Here’s a few ways to install it.
pip install awscli --upgrade --user
Or with Homebrew on macOS:
brew install awscli
Then configure it.
IAM policy, group, and user
The IAM user you use to run the
jets deploy command
needs a minimal set of IAM policies in order to deploy a Jets application.
Follow the Minimal Deploy Policy IAM Policy
to create the policy, group, and user. Use the user’s credentials to configure the