Compile PHP OCI8 extension under Alpinelinux - php

Question

I'm trying to compile PHP OCI8 extension and run it under Alpinelinux. But it seems extension has some dependencies on symbols defined in glibc but missing in musl libc.
Is there any existent compiled PHP OCI8 extension I can use? Or is there any workaround to make oci8 extension and oracle instant client work with alpinelinux.
Thanks in advance!

Answer 1

My solution for Alpine turned out to be simple: use Instant Client v11 (11.2.0.4) instead of v12 (12.2.0.1):
ENV LD_LIBRARY_PATH /usr/local/instantclient
ENV ORACLE_HOME /usr/local/instantclient
# Install Oracle Client and build OCI8 (Oracle Command Interface 8 - PHP extension)
RUN apk add php7-pear php7-dev gcc musl-dev libnsl libaio &&\
## Download and unarchive Instant Client v11
curl -o /tmp/basic.zip https://raw.githubusercontent.com/bumpx/oracle-instantclient/master/instantclient-basic-linux.x64-11.2.0.4.0.zip && \
curl -o /tmp/sdk.zip https://raw.githubusercontent.com/bumpx/oracle-instantclient/master/instantclient-sdk-linux.x64-11.2.0.4.0.zip && \
curl -o /tmp/sqlplus.zip https://raw.githubusercontent.com/bumpx/oracle-instantclient/master/instantclient-sqlplus-linux.x64-11.2.0.4.0.zip && \
unzip -d /usr/local/ /tmp/basic.zip && \
unzip -d /usr/local/ /tmp/sdk.zip && \
unzip -d /usr/local/ /tmp/sqlplus.zip && \
## Links are required for older SDKs
ln -s /usr/local/instantclient_11_2 ${ORACLE_HOME} && \
ln -s ${ORACLE_HOME}/libclntsh.so.* ${ORACLE_HOME}/libclntsh.so && \
ln -s ${ORACLE_HOME}/libocci.so.* ${ORACLE_HOME}/libocci.so && \
ln -s ${ORACLE_HOME}/lib* /usr/lib && \
ln -s ${ORACLE_HOME}/sqlplus /usr/bin/sqlplus &&\
ln -s /usr/lib/libnsl.so.2.0.0 /usr/lib/libnsl.so.1 &&\
## Build OCI8 with PECL
echo "instantclient,${ORACLE_HOME}" | pecl install oci8 &&\
echo 'extension=oci8.so' > /etc/php7/conf.d/30-oci8.ini &&\
# Clean up
apk del php7-pear php7-dev gcc musl-dev &&\
rm -rf /tmp/*.zip /var/cache/apk/* /tmp/pear/

Answer 2

Try these commands.
It works under Docker on Alpine.
But, you have to install the GLIB Alpine compatibility layer: https://github.com/sgerrand/alpine-pkg-glibc
# Install OCI8
COPY ./oracle-sdk /tmp/oracle-sdk
RUN apk add --no-cache libaio-dev && \
unzip /tmp/oracle-sdk/instantclient-basic-linux.x64-12.2.0.1.0.zip -d /usr/local/ && \
unzip /tmp/oracle-sdk/instantclient-sdk-linux.x64-12.2.0.1.0.zip -d /usr/local/ && \
unzip /tmp/oracle-sdk/instantclient-sqlplus-linux.x64-12.2.0.1.0.zip -d /usr/local/ && \
ln -s /usr/local/instantclient_12_2 /usr/local/instantclient && \
ln -s /usr/local/instantclient/libclntsh.so.* /usr/local/instantclient/libclntsh.so && \
ln -s /usr/local/libclntshcore.so.* /usr/local/instantclient/libclntshcore.so && \
ln -s /usr/local/instantclient/libocci.so.* /usr/local/instantclient/libocci.so && \
ln -s /usr/local/instantclient/sqlplus /usr/bin/sqlplus && \
docker-php-ext-configure oci8 --with-oci8=instantclient,/usr/local/instantclient && \
docker-php-ext-install oci8 && \
rm -rf /tmp/oracle-sdk

Answer 3

People who've tried Alpine haven't found a way. The problem is not specific to PHP, so check other languages that also use Oracle Instant Client and have tried Alpine. For example, see the Alpine issue https://github.com/sgerrand/alpine-pkg-glibc/issues/31

Answer 4

FROM php:alpine3.13
RUN apk add --no-cache composer libaio libc6-compat \
&& wget https://download.oracle.com/otn_software/linux/instantclient/211000/instantclient-basiclite-linux.x64-21.1.0.0.0.zip -O- | busybox unzip -q - \
&& wget https://download.oracle.com/otn_software/linux/instantclient/211000/instantclient-sdk-linux.x64-21.1.0.0.0.zip -O- | busybox unzip -q - \
&& cp /instantclient_21_1/libclntsh.so.21.1 /instantclient_21_1/libclntsh.so && cp /lib64/ld-linux-x86-64.so.2 /instantclient_21_1/ && cp /lib/libc.so.6 /usr/lib/libresolv.so.2 \
&& docker-php-ext-configure oci8 --with-oci8=instantclient,/instantclient_21_1 && docker-php-ext-install oci8