kikonen/demo_env

Experimenting container deployment

DEPLOY

Experimenting with strategies with building and deploying rails app as container image via private registry

Environment

Install docker-compose with Docker BuildKit support

New

• https://docs.docker.com/compose/cli-command/#installing-compose-v2

DOCKER_CONFIG=${DOCKER_CONFIG:-$HOME/.docker}
mkdir -p $DOCKER_CONFIG/cli-plugins
curl -SL https://github.com/docker/compose/releases/download/v2.4.1/docker-compose-linux-x86_64 -o $DOCKER_CONFIG/cli-plugins/docker-compose
chmod +x $DOCKER_CONFIG/cli-plugins/docker-compose

OLD

• https://www.cloudsavvyit.com/10623/how-to-install-docker-and-docker-compose-on-linux/
• https://github.com/docker/compose/releases

sudo curl -L "https://github.com/docker/compose/releases/download/v2.4.1/docker-compose-linux-x86_64" -o /tmp/docker-compose
sudo chmod +x /tmp/docker-compose
ls -al /tmp/docker-compose
/tmp/docker-compose --version
#sudo mv /tmp/docker-compose /usr/local/bin
docker-compose --version

Setup

scripts/git_clone.sh

Setup development env

cp -r _demo_secrets .development_secrets
cp _env .env
cp _development_env .development_env

Setup development DB

scripts/development_up.sh
docker exec -it demo_development_host bash
rake db:create
rake db:migrate

Run development

scripts/development_up.sh

# http://localhost:8091/ui

Build base

scripts/base_build.sh --no-cache
BASE_TAG=latest make base_tag

Publish base

BASE_TAG=1.x make base_tag
BASE_TAG=1.x make base_push

Setup production build env

cp _env .env
cp _build_env .build_env

Build production

scripts/production_build.sh --build-arg BASE_TAG=latest --no-cache
BUILD_TAG=latest make build_tag

Publish production build

BUILD_TAG=1.x make build_tag
BUILD_TAG=1.x make build_push

Setup production env

cp -r _demo_secrets .production_secrets
cp _env .env
cp _production_env .production_env

Setup production DB

scripts/production_up.sh
docker exec -it demo_production_host bash
rake db:create
rake db:migrate

Run production

BUILD_TAG=latest make build_tag
BUILD_TAG=latest scripts/production_up.sh

# http://localhost:8092/ui

References

Docker

• https://stackoverflow.com/questions/32230577/how-do-i-define-the-name-of-image-built-with-docker-compose
• https://docs.docker.com/compose/environment-variables/
• https://faun.pub/set-current-host-user-for-docker-container-4e521cef9ffc
• firewalld/firewalld#461
• https://docs.docker.com/network/iptables/
• https://docs.docker.com/compose/production/
• https://stackoverflow.com/questions/58592259/how-do-you-enable-buildkit-with-docker-compose
• https://docs.docker.com/develop/develop-images/build_enhancements/#new-docker-build-secret-information
• https://discourse.world/h/2020/05/12/Secure-secrets-when-building-in-Docker-Compose
• docker/compose#7046
• docker/compose#9386
• https://willschenk.com/articles/2020/rails_in_docker/

Bash

• https://stackoverflow.com/questions/35385962/arrays-in-a-posix-compliant-shell

Rails

• http://blog.siami.fr/diving-in-rails-the-request-handling
• https://coolrequest.dev/2021/12/13/docker_image_rails_part2.html
• https://stackoverflow.com/questions/3181746/what-is-the-replacement-for-actioncontrollerbase-relative-url-root
• https://apidock.com/rails/Rails/groups/class
• https://ieftimov.com/post/docker-compose-stray-pids-rails-beyond/

Bundle

• https://stackoverflow.com/questions/35429837/docker-compose-port-mapping
• https://medium.com/magnetis-backstage/how-to-cache-bundle-install-with-docker-7bed453a5800
• https://stackoverflow.com/questions/62070585/how-to-install-new-gems-in-a-rails-docker-image-without-rebuilding-it
• https://dev.to/k_penguin_sato/cache-rails-gems-using-docker-compose-3o3f
• sass/sassc-ruby#189
• https://dev.to/kolide/how-to-migrate-a-rails-6-app-from-sass-rails-to-cssbundling-rails-4l41

nginx

• https://linuxhint.com/nginx-use-environment-variables/
• https://hub.docker.com/_/nginx
• https://www.digitalocean.com/community/tutorials/how-to-create-let-s-encrypt-wildcard-certificates-with-certbot
• https://stackoverflow.com/questions/29279084/nginx-proxy-add-x-forwarded-for-and-real-ip-header