task.yaml

###########################################
# IMPORTANT
# Comments matter!
# The docs use the wrapping comments as
# markers for including said instructions
# as snippets in the docs.
###########################################
summary: Getting started with ExpressJS tutorial

environment:

execute: |
  # [docs:install-deps]
  sudo apt-get update -y && sudo apt-get install npm -y
  # [docs:install-deps-end]

  # [docs:init-app]
  sudo npm install -g express-generator@4
  express app
  cd app && npm install
  # [docs:init-app-end]

  npm start &
  cd ..
  retry -n 5 --wait 2 curl --fail localhost:3000

  # [docs:curl-expressjs]
  curl --fail localhost:3000
  # [docs:curl-expressjs-end]

  kill $!
  kill $(lsof -t -i:3000)

  # [docs:create-rockcraft-yaml]
  rockcraft init --profile expressjs-framework
  # [docs:create-rockcraft-yaml-end]

  sed -i "s/name: .*/name: expressjs-hello-world/g" rockcraft.yaml

  # [docs:experimental]
  export ROCKCRAFT_ENABLE_EXPERIMENTAL_EXTENSIONS=true
  # [docs:experimental-end]

  # [docs:pack]
  rockcraft pack
  # [docs:pack-end]

  # [docs:ls-rock]
  ls *.rock -l --block-size=MB
  # [docs:ls-rock-end]

  # [docs:skopeo-copy]
  sudo rockcraft.skopeo --insecure-policy \
    copy oci-archive:expressjs-hello-world_0.1_amd64.rock \
    docker-daemon:expressjs-hello-world:0.1
  # [docs:skopeo-copy-end]

  # [docs:docker-images]
  sudo docker images expressjs-hello-world:0.1
  # [docs:docker-images-end]

  # [docs:docker-run]
  sudo docker run --rm -d -p 3000:3000 \
    --name expressjs-hello-world expressjs-hello-world:0.1
  # [docs:docker-run-end]
  retry -n 5 --wait 2 curl --fail localhost:3000

  # [docs:curl-expressjs-rock]
  curl --fail localhost:3000
  # [docs:curl-expressjs-rock-end]

  # [docs:get-logs]
  sudo docker exec expressjs-hello-world pebble logs expressjs
  # [docs:get-logs-end]

  # [docs:stop-docker]
  sudo docker stop expressjs-hello-world
  sudo docker rmi expressjs-hello-world:0.1
  # [docs:stop-docker-end]

  mv time.js app/routes/
  original_line="var app = express();"
  # Remove comments from time_app.js
  sed -i 's:^//.*::g' time_app.js
  append_line="$(cat time_app.js | tr '\n' ' ')"
  sed -i "/$original_line/a$append_line" app/app.js
  sed -i "s/version: .*/version: 0.2/g" rockcraft.yaml

  # [docs:docker-run-update]
  rockcraft pack
  sudo rockcraft.skopeo --insecure-policy \
    copy oci-archive:expressjs-hello-world_0.2_amd64.rock \
    docker-daemon:expressjs-hello-world:0.2
  sudo docker images expressjs-hello-world:0.2
  sudo docker run --rm -d -p 3000:3000 \
    --name expressjs-hello-world expressjs-hello-world:0.2
  # [docs:docker-run-update-end]
  retry -n 5 --wait 2 curl --fail localhost:3000/time

  # [docs:curl-time]
  curl --fail localhost:3000/time
  # [docs:curl-time-end]

  # [docs:stop-docker-updated]
  sudo docker stop expressjs-hello-world
  sudo docker rmi expressjs-hello-world:0.2
  # [docs:stop-docker-updated-end]

  # [docs:cleanup]
  # delete all the files created during the tutorial
  npm uninstall -g express-generator@4
  sudo apt-get remove npm -y
  rm -rf app
  rm expressjs-hello-world_0.1_amd64.rock \
    expressjs-hello-world_0.2_amd64.rock \
    rockcraft.yaml
  # [docs:cleanup-end]