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XAMPP

XAMPP is a free and open-source cross-platform (X) web server solution stack package developed by Apache Friends, consisting mainly of the Apache HTTP Server (A), MariaDB database (M) (formerly MySQL), and interpreters for scripts written in the PHP (P) and Perl (P) programming languages.

Here is a great docker image!

Start via

#$ docker pull tomsik68/xampp
$ docker run --name myXAMPP -p 41061:22 -p 41062:80 -d -v ~/my_web_pages:/www tomsik68/xampp:8

Tip

  • docker run and docker container run are exactly the same
  • since docker run will automatically download the image if no installed, then docker pull is unnecessary. 🔗
  • -v /HOST-DIR:/CONTAINER-DIR creates a bind mount.
  • -p hostPort:containerPort publishes the container’s port to the host.
  • -d runs the container in the background and print the new container ID.
  • 🔑 More details can be checked via man docker-run.

Then we can see the container via

$ docker container ls
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS                                                    NAMES
43e5a49cbfd5        tomsik68/xampp      "sh /startup.sh"    18 seconds ago      Up 17 seconds       3306/tcp, 0.0.0.0:41061->22/tcp, 0.0.0.0:41062->80/tcp   myXAMPP

Stop via

#$ docker container stop/kill [containerID]
$ docker stop/kill [containerID]
# then
$ docker stop 43e5
43e5
$ docker container ls
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

Tip

  • similarly, docker container stop/kill can be abbreviated as docker stop/kill
  • kill 向容器里面的主进程发出 SIGKILL 信号,而 stop 发出 SIGTERM 信号,然后过一段时间再发出 SIGKILL 信号。两者差异是,应用程序收到 SIGTERM 信号后,可以自行进行收尾清理工作,但也可以不理会这个信号。如果收到 SIGKILL 信号,就会强行立即终止,那些正在进行的操作会全部丢失。🔗
  • containerID 无需写全,只要能区分即可
  • since we have specified the name via --name myXAMPP, we can replace the containerID with such name.

Restart via

# find the container ID
$ docker container ls -a
$ docker container start [containerID]/[containerNAME]

Tip

  • docker container ls only shows the running ones, but -a will show all containers. More details can be found in man docker-container-ls

Establish a ssh connection,

$ ssh root@127.0.0.1 -p 41061

it sounds like the port-forwarding if we view the container as another linux machine.

Info

Both default username and password are root.

Alternatively, we can get a shell terminal insider the container, just like ssh,

$ docker exec -it myXAMPP bash

Tip

  • -t allocates a pseudo-TTY.
  • -i keeps STDIN open even if not attached.
  • docker [container] exec 用于进入一个正在运行的 container. 如果 docker run 命令运行容器时,没有使用 -it,则需要这个命令进入容器。🔗

If we are inside the container, we can export the path to use the commands provided by XAMPP,

# inside docker container
export PATH=/opt/lampp/bin:$PATH
# or add it to `.bashrc` of the container

If we modified the configuration of XAMPP, we need to restart the Apache server via

docker exec myXAMPP /opt/lampp/lampp restart
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