Month: July 2020

1. we can search php and apache image on Docker Hub, we will use php:7.0-apache for this demo.

2. create Dockerfile and src/index.php as below

   root@ubunu2004:~/docker_sample# tree
   .
   ├── Dockerfile
   └── src
   └── index.php
   1 directory, 2 files
   root@ubunu2004:~/docker_sample# cat  Dockerfile
   FROM php:7.0-apache
   COPY src/ /var/www/html
   EXPOSE 80
   root@ubunu2004:~/docker_sample# cat src/index.php
   <?php
   echo "Hello World!";

3. build the container
   docker build -t hello_world .

4. run the container
   docker run -p 82:80 hello_world
   then you can verify it on http://192.168.0.43:82/

5. if you want mapping the index.php to container, you can start it with
   docker run -p 82:80 -v /root/docker_sample/src/:/var/www/html/ hello_world
   now if you update index.php, you will get the change immediately on http://192.168.0.43:82/

6. you can push this image to Docker Hub
   root@ubunu2004:~/docker_sample# docker images
   REPOSITORY TAG IMAGE ID CREATED SIZE
   hello_world latest dc8c649d4e8b 19 minutes ago 368MB
   root@ubunu2004:~/docker_sample# docker run -it -d hello_world:latest
   root@ubunu2004:~/docker_sample# docker ps
   CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
   d2963444e718 hello_world:latest "docker-php-entrypoi…" 10 seconds ago Up 6 seconds 80/tcp laughing_williamson
   root@ubunu2004:~/docker_sample# docker commit d2963444e718 zhuby1973/php:1
   sha256:1f2007f4786c344c8007b574af6f71b7604431c6d6cce0e2091e6adf1a8c8621
   root@ubunu2004:~/docker_sample# docker push zhuby1973/php:1

1. sign up on Docker Hub to get your user id and password
2. pull a image from Docker Hub
   docker pull ubuntu
3. make a dir on ubuntu image and commit/push image

   docker images
   docker run -it -d ubuntu
   docker ps -a
   root@ubunu2004:~# docker exec -it 6e08ac7cc702 bash
   root@6e08ac7cc702:/# mkdir /test_dir
   root@6e08ac7cc702:/# exit
   exit
   docker commit 6e08ac7cc702 zhuby1973/ubuntu:1
   root@ubunu2004:~# docker login
   Login with your Docker ID to push and pull images from Docker Hub. If you don't have a Docker ID, head over to https://hub.docker.com to create one.
   Username: zhuby1973
   Password:
   WARNING! Your password will be stored unencrypted in /root/.docker/config.json.
   Configure a credential helper to remove this warning. See
   https://docs.docker.com/engine/reference/commandline/login/#credentials-store
   Login Succeeded
   root@ubunu2004:~# docker push zhuby1973/ubuntu:1
   The push refers to repository [docker.io/zhuby1973/ubuntu]
   d3d28de77691: Pushed
   544a70a875fc: Mounted from library/ubuntu
   cf0f3facc4a3: Mounted from library/ubuntu
   132bcd1e0eb5: Mounted from library/ubuntu
   d22cfd6a8b16: Mounted from library/ubuntu
   2: digest: sha256:4c50ab7b0f8cadd72f5d37a569795a4ba697be892fca1b36a96eb9aa49a59d2e size: 1359

4. logon https://hub.docker.com/repositories you will find zhuby1973/ubuntu already there!
5. you can start this container to verify

   
   root@ubunu2004:~# docker run -it -d zhuby1973/ubuntu:1
   e5477e45b6b2bfe330e9f37a6f74e90964ef887f0f0a37ae23bbae4319a465a1
   root@ubunu2004:~# docker ps
   CONTAINER ID        IMAGE                COMMAND             CREATED             STATUS              PORTS               NAMES
   e5477e45b6b2        zhuby1973/ubuntu:1   "/bin/bash"         26 seconds ago      Up 24 seconds                           vigilant_satoshi
   df78087a8ef1        zhuby1973/test:2     "/bin/bash"         17 minutes ago      Up 17 minutes                           charming_wiles
   6e08ac7cc702        ubuntu               "/bin/bash"         32 minutes ago      Up 32 minutes                           charming_goodall
   root@ubunu2004:~# docker exec -it e5477e45b6b2 bash
   root@e5477e45b6b2:/# ls -ltr /test-dir
   total 0

1. install Docker on Ubuntu
   sudo apt-get update
   sudo apt install docker.io
   sudo systemctl start docker
   sudo systemctl enable docker
   docker –version
2. setup openspug/spug container
   openspug/spug is a small server manage tool developed with python!
   https://github.com/openspug/spug
   sudo docker pull openspug/spug
   sudo docker run -d -p 80:80 openspug/spug
   if port 80 already in use, you can find the process by:
   sudo lsof -i:80
   in our case it’s apache, stop it with:
   sudo systemctl stop apache2

sudo docker ps to get running container details:

(base) ubuntu@ubunu2004:/$ sudo docker ps
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                NAMES
c493cbf6aceb        openspug/spug       "/entrypoint.sh"    4 minutes ago       Up 4 minutes        0.0.0.0:80->80/tcp   determined_allen

initial and restart the spug:
export CONTAINER_ID=c493cbf6aceb
sudo docker exec $CONTAINER_ID init_spug admin spug.dev
sudo docker restart $CONTAINER_ID

then you can login http://192.168.0.43/ with:
user: admin
password: spug.dev