add oraclelinux support

Author: HenryXie1

Makefile

@@ -65,6 +65,10 @@ sgerrand.rsa.pub:
 glibc-2.29-r0.apk:
 	wget -q -O glibc-2.29-r0.apk https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.29-r0/glibc-2.29-r0.apk
 
+oraclelinux-image: $(ORA_RPM)
+	docker build -f oraclelinux/Dockerfile $(BUILD_ARGS) -t "iamseth/oracledb_exporter:$(VERSION)-oraclelinux" .
+	docker tag "iamseth/oracledb_exporter:$(VERSION)-oraclelinux" "iamseth/oracledb_exporter:oraclelinux"
+
 ubuntu-image: $(ORA_RPM)
 	docker build $(BUILD_ARGS)  -t "iamseth/oracledb_exporter:$(VERSION)" .
 	docker tag "iamseth/oracledb_exporter:$(VERSION)" "iamseth/oracledb_exporter:latest"

oraclelinux/Dockerfile

@@ -0,0 +1,50 @@
+FROM golang:1.14 AS build
+
+ARG ORACLE_VERSION
+ENV ORACLE_VERSION=${ORACLE_VERSION}
+ENV LD_LIBRARY_PATH "/usr/lib/oracle/${ORACLE_VERSION}/client64/lib"
+
+RUN apt-get -qq update && apt-get install --no-install-recommends -qq libaio1 rpm
+COPY oci8.pc.template /usr/share/pkgconfig/oci8.pc
+RUN sed -i "s/@ORACLE_VERSION@/$ORACLE_VERSION/g" /usr/share/pkgconfig/oci8.pc
+COPY oracle*${ORACLE_VERSION}*.rpm /
+RUN rpm -Uh --nodeps /oracle-instantclient*.x86_64.rpm && rm /*.rpm
+RUN echo $LD_LIBRARY_PATH >> /etc/ld.so.conf.d/oracle.conf && ldconfig
+
+WORKDIR /go/src/oracledb_exporter
+COPY . .
+RUN go get -d -v
+
+ARG VERSION
+ENV VERSION ${VERSION:-0.1.0}
+
+ENV PKG_CONFIG_PATH /go/src/oracledb_exporter
+ENV GOOS            linux
+
+RUN go build -v -ldflags "-X main.Version=${VERSION} -s -w"
+
+
+FROM oraclelinux:7-slim
+
+ARG ORACLE_VERSION
+ENV ORACLE_VERSION=${ORACLE_VERSION}
+RUN yum -y install oracle-release-el7 && \
+    yum -y --setopt=tsflags=nodocs update && \
+    # yum list oracle-instantclient* && \
+    yum -y --setopt=tsflags=nodocs install oracle-instantclient${ORACLE_VERSION}-basic.x86_64  && \
+    yum clean all
+
+
+COPY --from=build /go/src/oracledb_exporter/oracledb_exporter /oracledb_exporter
+ADD ./default-metrics.toml /default-metrics.toml
+
+RUN chmod 755 /oracledb_exporter && \
+    chmod 644 /default-metrics.toml && \
+    groupadd www-data && useradd -g www-data www-data
+USER www-data
+ENV DATA_SOURCE_NAME system/oracle@oracle/xe
+ENV LD_LIBRARY_PATH "/usr/lib/oracle/${ORACLE_VERSION}/client64/lib"
+
+EXPOSE 9161
+
+ENTRYPOINT ["/oracledb_exporter"]