Web Application Deployment With Docker

• Install: From https://docker.github.io/engine/getstarted/linux_install_help/

  curl -fsSL https://get.docker.com/ | sh
  

• Verify installation:

  docker version
  docker run hello-world
  

• Get some images from the registry:

  docker pull ubuntu:14.04
  docker pull ubuntu:16.04
  docker run ubuntu:14.04 /bin/echo 'Hello world'
  docker run ubuntu:16.04 /bin/echo 'Hello world'
  

• Create a new container from ubuntu-upstart:

  docker run -d --name=webapp --hostname=example.org \
             -p 8000:80 ubuntu-upstart:14.04
  

• Install apache2 and mysql inside the container:

  alias docker-webapp-exec='docker exec -it webapp env TERM=xterm'
  docker-webapp-exec bash
  apt-get update
  apt-get -y upgrade
  apt-get -y install apache2 mysql-server php5 php5-mysql
  a2enmod ssl
  a2ensite default-ssl
  service apache2 restart
  exit
  

• Add this line on /etc/hosts.

  127.0.0.1 example.org
  

• Try it in browser: http://example.org:8000/

• Save the webapp container as a new image (make a snapshot):

  docker stop webapp
  docker commit webapp lamp:v1.0
  docker images
  

• Create new containers from this image:

  mkdir /opt/test/
  cd /opt/test/
  mkdir -p app01
  docker run -d --name=webapp01 --hostname=example.org \
             -v $(pwd)/app01:/var/www/html \
             -p 8001:80 lamp:v1.0
  mkdir -p app02
  docker run -d --name=webapp02 --hostname=example.org \
             -v $(pwd)/app02:/var/www/html \
             -p 8002:80 lamp:v1.0
  

• Modify applications:

  vim app01/index.php
  vim app02/index.php
  

• Test them in browser:
  • http://example.org:8001/
  • http://example.org:8002/

• Create /opt/test/lamp/Dockerfile with a content like this:

  FROM ubuntu-upstart:14.04
  
  RUN apt-get update; apt-get -y upgrade
  RUN apt-get -y purge openssh-server openssh-client ; apt-get -y autoremove
  RUN apt-get update ; DEBIAN_FRONTEND=noninteractive apt-get -y install \
      vim apache2 mysql-server php5 php5-mysql
  RUN a2enmod ssl && \
      a2ensite default-ssl
  

• Build the image:

  cd /opt/test/
  docker build --tag=lamp:v1.1 lamp/
  docker images
  

• Rebuild and notice that the cache will be used.

• Register on Docker Hub: https://hub.docker.com/

• Set a tag:

  docker tag lamp:v1.1 username/lamp:v1.1
  

• Push to Docker Hub:

  docker login
  docker push username/lamp:v1.1
  

• Edit the information on: https://hub.docker.com/u/username/lamp/

• Get the code from GitHub:

  cd /opt/test/
  git clone https://github.com/docker-build/wsproxy
  

• Create a workdir:

  mkdir wsproxy1
  cd wsproxy1
  ln -s ../wsproxy .
  

• Build the image and create a container:

  cp wsproxy/utils/config.sh .
  vim config.sh
  
  wsproxy/docker/build.sh
  wsproxy/docker/create.sh
  wsproxy/docker/start.sh
  

• Create containers of webapps:

  docker stop webapp01 webapp02
  docker rm webapp01 webapp02
  
  docker run -d --name=webapp01 --hostname=app01.example.org \
             -v $(pwd)/../app01:/var/www/html lamp:v1.1
  docker run -d --name=webapp02 --hostname=app02.example.org \
             -v $(pwd)/../app02:/var/www/html lamp:v1.1
  

  Note that no HTTP ports are exposed to the host (for example using options -p 80:80 -p 443:443).

• Add domains app01.example.org and app02.example.org:

  wsproxy/domains-add.sh webapp01 app01.example.org
  wsproxy/domains-add.sh webapp02 app02.example.org
  
  cat containers.txt
  cat sites-enabled/app01.example.org.conf
  cat sites-enabled/app02.example.org.conf
  

• Add these lines on /etc/hosts:

  127.0.0.1 app01.example.org
  127.0.0.1 app02.example.org
  

• Try in browser:
  • http://app01.example.org/
  • http://app02.example.org/
  • https://app01.example.org/
  • https://app02.example.org/

• Try to get a free SSL cert from letsencrypt.org:

  wsproxy/get-ssl-cert.sh info@app01.example.org app01.example.org --test
  

  It will not work because app01.example.org is not a real domain owned by you and info@app01.example.org is not a real address.

• Get scripts from GitHub:

  cd /opt/test/
  git clone https://github.com/docker-build/SchoolTool
  cd SchoolTool/
  

• Edit settings.sh and comment out the ports:

  #PORTS="-p 7080:7080 -p 80:80 -p 443:443"
  

• Build image, create the container, and start it:

  ./build.sh
  ./create.sh
  ./start.sh
  docker ps
  

• Make some configurations and install apache2:

  ./exec.sh ./config.sh
  ./exec.sh ./install-apache2.sh
  

• Add the domain to wsproxy:

  cd /opt/test/wsproxy1/
  wsproxy/domains-add.sh schooltool school1.example.org
  

• Add to /etc/hosts the line 127.0.0.1 school1.example.org and try http://school1.example.org/ in browser.

• Try to get a free SSL cert from letsencrypt.org:

  wsproxy/get-ssl-cert.sh info@school1.example.org school1.example.org --test
  

  It will not work because school1.example.org is not a real domain owned by you and info@school1.example.org is not a real address.

• Get scripts from GitHub:

  cd /opt/test/
  git clone https://github.com/docker-build/moodle
  

• Create a working directory for the container:

  mkdir moodle1
  cd moodle1/
  ln -s ../moodle .
  cp moodle/utils/settings.sh .
  

• Edit settings.sh and comment out the ports:

  IMAGE=moodle
  CONTAINER=moodle1
  DOMAIN="moodle1.example.org"
  
  MYSQL_ROOT_PASSWD=random
  DBNAME=moodle1
  DBUSER=moodle1
  DBPASS=moodle1
  
  #PORT_HTTP=80
  #PORT_HTTPS=443
  #PORT_SSH=2222
  

• Build image, create the container, and start it:

  moodle/docker/build.sh
  moodle/docker/create.sh
  moodle/docker/start.sh
  docker ps
  

• Configure the new container:

  moodle/config.sh
  

• Add the domain to wsproxy:

  cd /opt/test/wsproxy1/
  wsproxy/domains-add.sh moodle1 moodle1.example.org
  

• Add to /etc/hosts the line 127.0.0.1 moodle1.example.org and try http://moodle1.example.org/ in browser.

• Try to get a free SSL cert from letsencrypt.org:

  wsproxy/get-ssl-cert.sh info@moodle1.example.org moodle1.example.org --test
  

  It will not work because moodle1.example.org is not a real domain owned by you and info@moodle1.example.org is not a real address.

See: http://info.btr.fs.al/install.html

• Get the image:

  docker search btranslator
  docker pull btranslator/btr_client:v3.0
  docker images
  

• Create and start a container:

  docker create --name=bcl_fr --hostname=fr.example.org btranslator/btr_client:v3.0
  docker start bcl_fr
  

• Add the domain to wsproxy:

  cd /opt/test/wsproxy1/
  wsproxy/domains-add.sh bcl_fr fr.example.org
  

• Add to /etc/hosts the line 127.0.0.1 fr.example.org and open in browser https://fr.example.org/ .

• See: https://github.com/dashohoxha/dbox

• Get the code of DBox from github:

  cd /opt/test/
  git clone --branch ubuntu-14.04 https://github.com/dashohoxha/dbox.git
  

• Rename the project:

  dbox/rename-project.sh  # see usage
  dbox/rename-project.sh labdoo:webapp03 lbd:w03
  mv dbox webapp03
  

• Initialize a git repository:

  cd webapp03/
  git init .
  git add -A
  git commit -a -m 'My new project.'
  cd ..
  

• Build a docker image and create a container:

  mkdir webapp03-workdir
  cd webapp03-workdir/
  ln -s ../webapp03/docker .
  cp docker/settings.sh .
  vim settings.sh
  docker/build.sh settings.sh
  vim config     # comment out ports
  docker/create.sh
  docker/start.sh
  docker ps
  

• Add the domain to wsproxy:

  cd /opt/test/wsproxy1/
  wsproxy/domains-add.sh webapp03-master example.org
  

• Add to /etc/hosts the line 127.0.0.1 example.org and open in browser https://example.org/ .