Personal documentation during development phase and still learning new technology
Adding PHP Extension on Docker at Azure VM
Adding PHP Extension on Docker at Azure VM

Adding PHP Extension on Docker at Azure VM

Last week I got problem with my Wodpress Plugin, it said

This plugin requires the PHP version >= 5.4.0 , and a following list of PHP extensions to be enabled: cURL, XMLWriter, OpenSSL, HASH, DOM

Then I go to my VM using putty, try to install those PHP Extension, before I run ‘apt-get install …..’, I tried to check the PHP version

[email protected]:/home/users# php -v

The program ‘php’ is currently not installed. You can install it by typing:

apt-get install php5-cli

I was shocked.. where’s my PHP, my wordpress application.. then I realized that I’m choose WordPress + mysql with Docker Engine

So I tried to find how to enable the php extension in docker container. And this tutorial based on my question in MSDN Forum ( and I write down this blog to make easier to find the solution when I need it again.

Below is the steps

The steps for entering Docker Container:
1. Remote the VM for Docker, command `ssh <username>@<vm-host>`
2. Get the container name of the `wordpress` container, command `docker ps` and find the NAME for the image `wordpress`

3. Get the PID of the `wordpress` container, command `docker inspect -f “{{.State.Pid}}” <container-name>`

4. Enter into the `wordpress` container, command `sudo nsenter –target <PID> –mount –uts –ipc –net –pid`

5. run ‘apt-get install php-curl’ etc

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