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• chore(deps): update dependency icinga/icinga-php-thirdparty to v0.12.1
• chore(deps): update alpine docker tag to v3.19.0

Detected dependencies

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The current image installs PHP from Alpine, which is not recommend for Docker. How about using the upstream PHP container? It supports PHP as Apache module, or a FPM variant running on Debian or Alpine (can still be linked to nginx).

When you have similar problems with pecl like this

WARNING: channel "pecl.php.net" has updated its protocols, use "pecl channel-update pecl.php.net" to update
Could not download from "https://pecl.php.net/get/yaml-2.0.4.tgz", cannot download "pecl/yaml" (Connection to `ssl://pecl.php.net:443' failed: Unable to find the socket transport "ssl" - did you forget to enable it when you configured PHP?)
Error: cannot download "pecl/yaml"

pecl calls php with the -n switch, so it does not read php.ini.

Small step for debugging:

/ # php -i | grep "Registered Stream Socket Transports"
Registered Stream Socket Transports => tcp, udp, unix, udg, ssl, tls, tlsv1.0, tlsv1.1, tlsv1.2

/ # php -ni | grep "Registered Stream Socket Transports"
Registered Stream Socket Transports => tcp, udp, unix, udg

A quick (but evil) hack to fix the problem is a one-liner:
sed -i 's|$PHP -C -n -q |$PHP -C -q |' /usr/bin/pecl

Best regards from Hamburg