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Hoping writing JS, Ruby & Rails and Go article, but fallback to DevOps note

Deploy New Rails 6 Application in Ubuntu 20.04

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Create new user

adduser cybros_vendor

sudo su - cybros_vendor

mkdir .ssh

chmod 700 .ssh

vi .ssh/authorized_keys # and paste your public key

chmod 600 .ssh/authorized_keys

Enable new user as sudo

sudo su -

cd /etc/sudoers.d/

echo "cybros_vendor ALL=(ALL) NOPASSWD:ALL" > 80-cybros_vendor-user

Install nginx

sudo apt-get install nginx

It’s also possible to enable TLS 1.1/1.2 due to Ubuntu 20.04 not support by default.

/etc/nginx/nginx.conf
ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;

# seclevel for TLS 1.0 and 1.1

ssl_ciphers "EECDH+AESGCM:EDH+AESGCM:AES256+EECDH:AES256+EDH:@SECLEVEL=1";

Install node.js 15 and yarn 1.x

Using nodesource distribution

curl -fsSL https://deb.nodesource.com/setup_15.x | sudo -E bash -

sudo apt-get install gcc g++ make git

sudo apt-get install -y nodejs

## To install the Yarn package manager

curl -sL https://dl.yarnpkg.com/debian/pubkey.gpg | gpg --dearmor | sudo tee /usr/share/keyrings/yarnkey.gpg >/dev/null

echo "deb [signed-by=/usr/share/keyrings/yarnkey.gpg] https://dl.yarnpkg.com/debian stable main" | sudo tee /etc/apt/sources.list.d/yarn.list

sudo apt-get update && sudo apt-get install yarn

Install rbenv and Ruby 3.0.1

sudo apt install rbenv

sudo su - cybros_vendor

mkdir -p "$(rbenv root)"/plugins

git clone https://github.com/rbenv/ruby-build.git "$(rbenv root)"/plugins/ruby-build

git clone https://github.com/andorchen/rbenv-china-mirror.git "$(rbenv root)"/plugins/rbenv-china-mirror

rbenv install 3.0.1

rbenv global 3.0.1

echo "gem: --no-document" > ~/.gemrc

eval "$(rbenv init -)" >> ~/.bash_profile # or past the `rbenv init -`

rbenv shell 3.0.1

Install MySQL Client

sudo apt-get install gnupg2

wget https://repo.percona.com/apt/percona-release_latest.$(lsb_release -sc)_all.deb

sudo dpkg -i percona-release_latest.$(lsb_release -sc)_all.deb

sudo percona-release setup ps80

sudo apt-get install percona-server-client

sudo apt-get install libmysqlclient-dev

Create MySQL DB user

mysql -u root -p

CREATE DATABASE cybros_vendor character set UTF8mb4 collate utf8mb4_bin;

CREATE USER 'cybros_vendor'@'%' IDENTIFIED BY 'cybros_vendor_password';

GRANT ALL ON cybros_vendor.* TO 'cybros_vendor'@'%';

FLUSH PRIVILEGES;

Link rbenv to make capistrano works

mkdir -p ~/.rbenv/bin

cd ~/.rbenv/bin

ln -s /usr/bin/rbenv rbenv

Install Oracle Instant Client

Download Version 19.14.0.0.0 and following ruby-oci8 document

sudo mkdir /opt/oracle

sudo unzip instantclient-basic-linux.x64-19.14.0.0.0dbru.zip -d /opt/oracle

sudo unzip instantclient-sqlplus-linux.x64-19.14.0.0.0dbru.zip -d /opt/oracle/

sudo unzip instantclient-sdk-linux.x64-19.14.0.0.0dbru.zip -d /opt/oracle/

cd /usr/local/bin

sudo ln -s /opt/oracle/instantclient_19_14/sqlplus  sqlplus

export LD_LIBRARY_PATH=/opt/oracle/instantclient_19_14

gem install ruby-oci8
Append tolink
TNS_ADMIN=/opt/oracle/instantclient_19_14/network/admin

LD_LIBRARY_PATH=/opt/oracle/instantclient_19_14

NLS_LANG=AMERICAN_AMERICA.AL32UTF8

Also need setting in systemd/system/puma_service or side_service

Environment="TNS_ADMIN=/opt/oracle/instantclient_19_14/network/admin"

Environment="LD_LIBRARY_PATH=/opt/oracle/instantclient_19_14"

Environment="NLS_LANG=AMERICAN_AMERICA.AL32UTF8"

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