Added composer build

5/Dockerfile.composer-alpine

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+# PHP 5.6 == 3.6
+ARG OS_VERSION=3.6
+
+FROM quay.io/sindigilive/alpine:${OS_VERSION} AS builder
+LABEL maintainer="<Muhamad Aditya Prima> map@sindigilive.com"
+
+ARG PHP_VERSION=5.6
+ARG PHP_VER_SHORT=5
+ARG COMPOSER_VERSION=2.2.25
+
+ENV PHP_VERSION=${PHP_VERSION}
+ENV PHP_VER_SHORT=${PHP_VER_SHORT}
+ENV COMPOSER_VERSION=${COMPOSER_VERSION}
+
+# Set composer home
+ENV COMPOSER_HOME=/app
+ENV COMPOSER_CACHE_DIR=${COMPOSER_HOME}/cache
+
+WORKDIR /root
+
+ADD 5/scripts/alpine-composer-setup.sh /tmp/setup.sh
+
+# Create directory, and install required php app
+RUN /bin/mkdir -p ${COMPOSER_HOME}/build ${COMPOSER_CACHE_DIR}/files \
+                  ${COMPOSER_CACHE_DIR}/repo ${COMPOSER_CACHE_DIR}/vcs ; \
+    /usr/sbin/addgroup -g 10001 composer ; \
+    /usr/sbin/adduser -D -u 10001 -G composer -s /sbin/nologin -h ${COMPOSER_HOME}/build composer ; \
+    /sbin/apk add --update --no-cache \
+              php${PHP_VER_SHORT} php${PHP_VER_SHORT}-common \
+              php${PHP_VER_SHORT}-cli ; \
+    /bin/chown -R composer:composer /app ${COMPOSER_CACHE_DIR} ; \
+    /bin/chmod +x /tmp/setup.sh; \
+    /bin/sh /tmp/setup.sh; \
+    /bin/rm -f /tmp/*.sh;
+
+# Create symlinks to /usr/bin/php in case it doesn't exists
+RUN ln -ns /usr/bin/php${PHP_VER_SHORT} /usr/bin/php ; exit 0
+
+# CLEAN APK CACHES
+RUN rm -vrf /var/cache/apk/*
+
+FROM scratch
+
+ARG PHP_VERSION=5.6
+ARG PHP_VER_SHORT=5
+ARG COMPOSER_VERSION=2.2.25
+
+ENV PHP_VERSION=${PHP_VERSION}
+ENV PHP_VER_SHORT=${PHP_VER_SHORT}
+ENV COMPOSER_VERSION=${COMPOSER_VERSION}
+
+# Set composer home
+ENV COMPOSER_HOME=/app
+ENV COMPOSER_CACHE_DIR=${COMPOSER_HOME}/cache
+
+LABEL maintainer="Muhamad Aditya Prima <map@sindigilive.com>"
+LABEL name="composer"
+LABEL version="${COMPOSER_VER_SHORT}"
+LABEL distribution-scope="public"
+
+#labels for container catalog
+LABEL summary="Composer ${COMPOSER_VER_SHORT} with PHP ${PHP_VERSION} on alpine based container image"
+LABEL description="Provide php on alpine based container base image"
+LABEL io.k8s.description="Very small alpine linux container image"
+LABEL io.k8s.display-name="Composer ${COMPOSER_VER_SHORT}, PHP ${PHP_VERSION}"
+
+COPY --from=builder / /
+
+USER composer
+
+WORKDIR ${COMPOSER_HOME}/build
+
+STOPSIGNAL SIGQUIT
+
+CMD ["/usr/bin/composer", "-V"]

5/scripts/alpine-composer-setup.sh

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+#!/bin/sh
+
+PHP_LIST="bcmath,bz2,calendar,cgi,ctype,
+curl,dba,dev,doc,
+dom,embed,enchant,exif,ftp,
+gd,gettext,gmp,iconv,imap,
+intl,json,ldap,mailparse,mcrypt,
+memcache,opcache,openssl,pcntl,pdo,
+pear,pear-net_socket,phar,phpdbg,
+phpmailer,posix,pspell,shmop,
+snmp,soap,sockets,sysvmsg,sysvsem,
+sysvshm,wddx,xcache,xml,xmlreader,
+xmlrpc,xsl,zip,zlib"
+PHP_DEPS=""
+
+# Setup php flavor
+for i in $(echo $PHP_LIST | tr "," "\n"); do
+    PHP_DEPS="${PHP_DEPS} php$PHP_VER_SHORT-$i ";
+done
+
+/sbin/apk add --update --no-cache $PHP_DEPS;