install-php-extensions: Permission denied

[laurinkeithdavis]

Version of install-php-extensions

Unknown

Error description

C:\Program Files\Docker\Docker\resources\bin\docker.exe compose -f C:\inetpub\ecr\docker-compose.yml -p ecr up --build

[+] Building 3.3s (7/7) FINISHED
=> [internal] load build definition from Dockerfile 0.0s
=> => transferring dockerfile: 915B 0.0s
=> [internal] load .dockerignore 0.0s
=> => transferring context: 2B 0.0s
=> [internal] load metadata for docker.io/library/php:8.4-apache 2.3s
=> https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions 0.7s
=> [1/3] FROM docker.io/library/php:8.4-apache@sha256:d79e472947b150b581240b8d16ba234c0dd3a6a484881ebbed3bc9f53c81bd0b 0.0s
=> CACHED [2/3] ADD --chmod=0755 https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/ 0.0s
=> ERROR [3/3] RUN install-php-extensions xdebug 0.3s
[3/3] RUN install-php-extensions xdebug:
#0 0.290 /bin/sh: 1: install-php-extensions: Permission denied
failed to solve: executor failed running [/bin/sh -c install-php-extensions xdebug]: exit code: 127
docker-compose process finished with exit code 17

Docker image

php:8.4-apache

Minimal Dockerfile

FROM php:8.4-apache
ADD --chmod=0755 https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-
RUN install-php-extensions xdebug

[github-actions]

Version of install-php-extensions

Unknown

@laurinkeithdavis the install-php-extensions version that you specified (Unknown) is not valid.

Please specify the install-php-extensions version you are using: it's the first line printed by the script.
For example:

install-php-extensions v.X.Y.Z

[laurinkeithdavis]

I can't. When I run it, I get Permission denied.

[laurinkeithdavis]

Why was this closed?

[laurinkeithdavis]

[mlocati]

I'm currently having a break: I'll check what may be going wrong for you in about a couple of weeks

[laurinkeithdavis]

FYI, I've tried several different images - both official and others (codingmachine).

[mlocati]

For the time being, you can try to run chmod +x /usr/local/bin/install-php-extensions before launching install-php-extensions

[laurinkeithdavis]

Sorry to bug you on your break.

=> [1/4] FROM php:8.4-apache 0.0s
=> CACHED [2/4] ADD --chmod=0755 https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/ 0.0s
=> ERROR [3/4] RUN chmod +x /usr/local/bin/install-php-extensions 0.4s

[3/4] RUN chmod +x /usr/local/bin/install-php-extensions:
#0 0.348 chmod: changing permissions of '/usr/local/bin/install-php-extensions': Operation not permitted

failed to solve: executor failed running [/bin/bash -o pipefail -c chmod +x /usr/local/bin/install-php-extensions]: exit code: 1

[laurinkeithdavis]

This allowed me to change run the command you gave me:

Now, the install works!

[mlocati]

That's really strange that you have to specify

USER root

Since root should be the default user...

In order to check that, I created this simple Dockerfile:

FROM php:8.4-apache
RUN whoami

And here's what I have:

$ docker build --no-cache --progress plain --tag test .
[...]
#5 [2/2] RUN whoami
#5 0.334 root

[laurinkeithdavis]

Yep, same:

#5 [2/2] RUN whoami
#5 sha256:c3feee1595a3b077b029f5654903e7c76cabda759d7f59c1bdbfdc777dd005cd
#5 0.302 root
#5 DONE 0.3s

I went back to my own Dockerfile and removed the "USER root" line and that worked.

I went removed "RUN chmod +x /usr/local/bin/install-php-extensions" and still getting the permission denied error.

We are in an enterprise environment and our machines are extremely locked down. My team has elevated permissions, but not admin access, and those permissions are set by CyberArk on each login (and sometimes they are even delayed due to lack of a network connection). I wonder if that was what is causing these issues.

[mlocati]

I went removed "RUN chmod +x /usr/local/bin/install-php-extensions" and still getting the permission denied error.

That's really strange... AFAIK ADD --chmod=0755 https://github.com/mlocati/docker-php-extension-installer/releases/latest/download/install-php-extensions /usr/local/bin/ should also set the executable bit...