can't install php agent in Alpine Linux 3.21

[woniuzhang]

Install php agent according to https://skywalking.apache.org/docs/skywalking-php/next/en/setup/service-agent/php-agent/readme/ , I tried pecl and source code to install , they all make the same error.

error[E0425]: cannot find function `rebuild_object_properties` in this scope
   --> /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/phper-0.12.0/src/classes.rs:827:5
    |
827 |     rebuild_object_properties(object);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^ not found in this scope

error[E0063]: missing fields `doc_comment` and `frameless_function_infos` in initializer of `_zend_function_entry`
   --> /root/.cargo/registry/src/index.crates.io-6f17d22bba15001f/phper-0.12.0/src/functions.rs:158:9
    |
158 |         zend_function_entry {
    |         ^^^^^^^^^^^^^^^^^^^ missing `doc_comment` and `frameless_function_infos`

Some errors have detailed explanations: E0063, E0425.
For more information about an error, try `rustc --explain E0063`.
error: could not compile `phper` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
make: *** [Makefile:212: cargo_build] Error 101
ERROR: `make' failed

[jmjoy]

We will upgrade the dependency phper version to resolve this issue.

[woniuzhang]

php.ini

[skywalking_agent]
extension = skywalking_agent.so

; Enable skywalking_agent extension or not.
skywalking_agent.enable = On

; Reporter type, optional values are `grpc`, `kafka` and `standalone`.
skywalking_agent.reporter_type = grpc

; Log file path.
skywalking_agent.log_file = /tmp/skywalking-agent.log

; Log level: one of `OFF`, `TRACE`, `DEBUG`, `INFO`, `WARN`, `ERROR`.
skywalking_agent.log_level = INFO

; Address of skywalking oap server.
skywalking_agent.server_addr = skywalking-skywalking-helm-oap.default.svc.cluster.local:11800

; Application service name.
skywalking_agent.service_name = hello-skywalking

fpm配置 www.conf

    [www]
    user = www-data
    group = www-data
    listen = 127.0.0.1:9000
    pm = static
    pm.max_children = 10
    pm.max_requests = 2000

[jmjoy]

Are you sure php-fpm is running in foreground?

[woniuzhang]

yes, runing in k8s the whole command is "docker-php-entrypoint php-fpm".

cat /usr/local/bin/docker-php-entrypoint
#!/bin/sh
set -e

# first arg is `-f` or `--some-option`
if [ "${1#-}" != "$1" ]; then
	set -- php-fpm "$@"
fi

exec "$@"

PID   USER     TIME  COMMAND
    1 www-data  0:00 php-fpm: master process (/usr/local/etc/php-fpm.conf)
   14 www-data  0:00 php-fpm: pool www
   15 www-data  0:00 php-fpm: pool www
   16 www-data  0:00 php-fpm: pool www
   17 www-data  0:00 php-fpm: pool www
   18 www-data  0:00 php-fpm: pool www
   19 www-data  0:00 php-fpm: pool www
   20 www-data  0:00 php-fpm: pool www
   21 www-data  0:00 php-fpm: pool www
   22 www-data  0:00 php-fpm: pool www
   23 www-data  0:00 php-fpm: pool www
   50 www-data  0:00 sh
   56 www-data  0:00 ps -ef

[jmjoy]

Pass argument php-fpm -F or specify daemonize = no in configuration file.

[woniuzhang]

it's worked

[jmjoy]

Which php version do you use?

[woniuzhang]

PHP 8.4.1 (cli) (built: Dec 11 2024 23:33:19) (NTS)