Oracle on Alpine linux

Question

I am trying to install OCI8 extension on my Alpine Linux Docker environment. Although there are several places saying it won't work, there are some which say it actually does. I have a 3.4 version and for corporate reasons it is staying like that for now.

I have done this within my Docker conf:

# Install Oracle Client and build OCI8 (Oracel Command Interface 8 - PHP extension)
USER root
ENV LD_LIBRARY_PATH=/usr/local/instantclient
ENV ORACLE_HOME=/usr/local/instantclient

RUN apk update && apk upgrade
RUN apk add musl-dev libaio autoconf && apk add --update make

## Unzip Instant Client v12
RUN pecl channel-update pecl.php.net
COPY instantclient_12_2.zip /var/www/html/instantclient_12_2.zip
RUN unzip -d /usr/local/ /var/www/html/instantclient_12_2.zip
RUN ln -s /usr/local/instantclient_12_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

RUN apk add gcc; exit 0 # This has a history of failing sometimes

RUN echo "instantclient,/usr/local/instantclient" | pecl install oci8 &&\
    echo 'extension=oci8.so' > /usr/local/etc/php/conf.d/30-oci8.ini &&\
    rm -rf /tmp/*.zip /var/cache/apk/* /tmp/pear/

Now the build passes, and it looks okay, however when I do a php -v I am getting the following:

PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/lib/php/extensions/no-debug-non-zts-20160303/oci8.so' - Error loading shared library libnsl.so.1: No such file or directory (needed by /usr/local/instantclient/libclntsh.so.12.1) in Unknown on line 0

PHP version is 7.1.12.

What I've tried is doing apk add libnsl but this returns me this error:

ERROR: unsatisfiable constraints: so:libtirpc.so.3 (missing):

So I tried also adding apk add libtirpc-dev (the 'plain' libtirpc isn't available for my version or something), but that changed nothing.

Any clues?

Answer 1

I share my version of docker that I made to work with the latest version of alpine and instantclient basiclite. The size of the docker image is 124 mb.

I share my github where you can download it

Docker + alpine + Instantclient Basiclite

Or you can see below the content of the dockerfile

FROM alpine:latest
# Install Instantclient Basic Light Oracle and Dependencies
RUN apk --no-cache add libaio libnsl libc6-compat curl && \
cd /tmp && \
curl -o instantclient-basiclite.zip https://download.oracle.com/otn_software/linux/instantclient/instantclient-basiclite-linuxx64.zip -SL && \
unzip instantclient-basiclite.zip && \
mv instantclient*/ /usr/lib/instantclient && \
rm instantclient-basiclite.zip && \
ln -s /usr/lib/instantclient/libclntsh.so.19.1 /usr/lib/libclntsh.so && \
ln -s /usr/lib/instantclient/libocci.so.19.1 /usr/lib/libocci.so && \
ln -s /usr/lib/instantclient/libociicus.so /usr/lib/libociicus.so && \
ln -s /usr/lib/instantclient/libnnz19.so /usr/lib/libnnz19.so && \
ln -s /usr/lib/libnsl.so.2 /usr/lib/libnsl.so.1 && \
ln -s /lib/libc.so.6 /usr/lib/libresolv.so.2 && \
ln -s /lib64/ld-linux-x86-64.so.2 /usr/lib/ld-linux-x86-64.so.2

ENV ORACLE_BASE /usr/lib/instantclient
ENV LD_LIBRARY_PATH /usr/lib/instantclient
ENV TNS_ADMIN /usr/lib/instantclient
ENV ORACLE_HOME /usr/lib/instantclient