Oracle on Alpine linux - php

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

Answer 2

I might be late to answer this. I got the same problem of having a alpine base image and add oracle client to that. So i came up with this solution -
https://github.com/Shrinidhikulkarni7/OracleClient_Alpine
Here is the Dockerfile, but you would also need the shell script in it for it to work.
FROM alpine:latest
ENV LD_LIBRARY_PATH=/lib
RUN wget https://download.oracle.com/otn_software/linux/instantclient/193000/instantclient-basic-linux.x64-19.3.0.0.0dbru.zip && \
unzip instantclient-basic-linux.x64-19.3.0.0.0dbru.zip && \
cp -r instantclient_19_3/* /lib && \
rm -rf instantclient-basic-linux.x64-19.3.0.0.0dbru.zip && \
apk add libaio
ADD script.sh /root/script.sh
RUN /root/script.sh
Over here I'm directly downloading the oracle client inside image, setting the path, adding packages and finally using the shell script for creating symbolic link.

Answer 3

I'd recommend using an operating system supported by Oracle, thus avoiding the headache of hacking Alpine and the uncertainty that it won't fall over at a critical time. And thus giving you some confidence your business won't be negatively impacted. Try https://github.com/oracle/docker-images/tree/master/OracleInstantClient
Other comments
Don't set ORACLE_HOME when using Instant Client. That variable is
for full software installs.
Use ldconfig to set the system library path, see
the Instant Client installation instructions e.g. here.
Use Instant Client 19, which can connect to the same DB versions that 12.2 can. (19 is really the renamed terminal 12.2 release in the new versioning system)
Using Oracle Linux Docker images has the advantage that it will download and install the 19 Instant Client without you having to manually do the download.
See this blog for info about the 'slim' Oracle Linux container it uses.

Answer 4

Here is the Dockerfile For Golang With ORACLE-CLIENT
FROM golang:alpine
RUN apk update
ENV CLIENT_FILENAME instantclient-basic-linux.x64-12.1.0.1.0.zip
WORKDIR /opt/oracle/lib
ADD https://github.com/bumpx/oracle-instantclient/raw/master/${CLIENT_FILENAME} .
RUN echo "http://dl-cdn.alpinelinux.org/alpine/edge/community" >> /etc/apk/repositories && \
apk add --update libaio libnsl && \
ln -s /usr/lib/libnsl.so.2 /usr/lib/libnsl.so.1
RUN LIBS="*/libociei.so */libons.so */libnnz12.so */libclntshcore.so.12.1 */libclntsh.so.12.1" && \
unzip ${CLIENT_FILENAME} ${LIBS} && \
for lib in ${LIBS}; do mv ${lib} /usr/lib; done && \
ln -s /usr/lib/libclntsh.so.12.1 /usr/lib/libclntsh.so && \
rm ${CLIENT_FILENAME}
RUN mkdir /app
ADD . /app
WORKDIR /app
RUN apk add git
RUN apk add libc-dev
RUN apk add gcc
RUN go mod tidy
RUN go build -o main .
CMD ["/app/main"]

Answer 5

I was just tackling a similar problem to this using the Godror Golang Driver for Oracle. I was never able to solve this on using an Alpine image. The problem eventually came that libint.sh, would never fully install to be recognized by the system. Even changing the docker file to using the Glibc library.
How i eventually fixed the issue was to use the images from Oracle itself. The full version not the slim images that can be seen here: https://github.com/oracle/docker-images/tree/master/OracleLinuxDevelopers
you then have to install golang and then your Instant client and Oracle dependencies if you need it.
FROM oraclelinux:7 as builder
RUN yum install -y oracle-golang-release-el7 && \
yum install -y git && \
yum install -y golang unzip
COPY . /app
RUN go version
WORKDIR /app
{Your Docker Specific Commands Here}
{Insert Build Specific Environment Variables here}
#Oracle Specific Environment Variables
{Insert Oracle Env Variables here}
WORKDIR /root/
#Install oracle dependencies
RUN yum install -y wget unzip libaio && \
rm -rf /var/cache/yum
#install Oracle Instant Client
RUN wget https://download.oracle.com/otn_software/linux/instantclient/199000/instantclient-basic-linux.x64-19.9.0.0.0dbru.zip -O /tmp/instantclient.zip && \
unzip /tmp/instantclient.zip -d /usr/lib/instantclient && \
rm /tmp/instantclient.zip
#Install Oracle SDK
RUN wget https://download.oracle.com/otn_software/linux/instantclient/199000/instantclient-sdk-linux.x64-19.9.0.0.0dbru.zip -O /tmp/instantclient-sdk-linux.x64-19.9.0.0.0.zip && \
unzip /tmp/instantclient-sdk-linux.x64-19.9.0.0.0.zip -d /usr/lib/ && \
rm /tmp/instantclient-sdk-linux.x64-19.9.0.0.0.zip
#Install Oracle Tools through SQLPlus
RUN wget https://download.oracle.com/otn_software/linux/instantclient/199000/instantclient-sqlplus-linux.x64-19.9.0.0.0dbru.zip -O /tmp/instantclient-sqlplus-linux.x64-19.9.0.0.0.zip && \
unzip /tmp/instantclient-sqlplus-linux.x64-19.9.0.0.0.zip -d /usr/lib/ && \
rm /tmp/instantclient-sqlplus-linux.x64-19.9.0.0.0.zip
WORKDIR /app
COPY --from=builder /app/cmd/svr .
EXPOSE 8000
CMD ["./app"]
Again this is how i solved the problem for a Golang API. There may be others that solved the Alpine issue but i was never able to get it to work, even using older version of the Oracle Instant Client.

Answer 6

Try this Docker file. Start from the basic alpine linux image and add the required packages.
FROM alpine:3.13
WORKDIR /project
RUN wget https://download.oracle.com/otn_software/linux/instantclient/211000/instantclient-basiclite-linux.x64-21.1.0.0.0.zip -qO- | busybox unzip -q - && \
wget https://download.oracle.com/otn_software/linux/instantclient/211000/instantclient-sqlplus-linux.x64-21.1.0.0.0.zip -qO- | busybox unzip -q - && \
wget https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.33-r0/glibc-2.33-r0.apk -q
RUN apk add --allow-untrusted libaio glibc-2.33-r0.apk
RUN cd instantclient_21_1 && cp /usr/lib/libaio.so.1 /lib/libc.musl-x86_64.so.1 . && chmod +x sqlplus
ENV LD_LIBRARY_PATH=/project/instantclient_21_1