Docker 容器内的 node-oracledb 问题

Question

我有一个 Nest.js 应用程序，它通过 TypeORM 连接到 Oracle 数据库，我正在尝试使用 Docker 将我的应用程序容器化。所以这里的问题是，当应用程序没有被容器化时，它可以正常工作，但是当我这样做时，我会收到以下错误。

[Nest] 19   - 06/16/2020, 4:00:52 AM   [TypeOrmModule] Unable to connect to the database. Retrying (4)... +3003ms
 Error: DPI-1047: Cannot locate a 64-bit Oracle Client library: "libclntsh.so: cannot open shared object file: No such file or directory". See https://oracle.github.io/odpi/doc/installation.html#linux for help
Node-oracledb installation instructions: https://oracle.github.io/node-oracledb/INSTALL.html
You must have 64-bit Oracle client libraries in LD_LIBRARY_PATH, or configured with ldconfig.
If you do not have Oracle Database on this computer, then install the Instant Client Basic or Basic Light package from
http://www.oracle.com/technetwork/topics/linuxx86-64soft-092277.html
    at OracleDb.createPool (/app/node_modules/oracledb/lib/oracledb.js:202:8)
    at OracleDb.createPool (/app/node_modules/oracledb/lib/util.js:185:19)

我确保在我的 Dockerfile 中添加 Oracle 瘦客户端所需的依赖项，如下所示

FROM oraclelinux:7-slim
RUN  yum -y install oracle-release-el7 oracle-nodejs-release-el7 && \
   yum-config-manager --disable ol7_developer_EPEL --enable ol7_oracle_instantclient && \
   yum -y install oracle-instantclient19.5-basiclite && \
   rm -rf /var/cache/yum

FROM node:10
WORKDIR /app
COPY ./package.json ./

我不确定要在此处添加什么其他内容才能使这项工作正常进行。我从这里https://oracle.github.io/node-oracledb/INSTALL.html#docker 得到了一些关于为 oracle 客户端添加什么的说明

Answer 1

您似乎正在尝试使用多阶段构建。我在我的博文Docker for Oracle Database Applications in Node.js and Python 的“Node.js Dockerfile 示例 3”中讨论了这个问题。

你可以试试这样的：

FROM oraclelinux:7-slim as builder

ARG release=19
ARG update=5

RUN yum -y install oracle-release-el7 &&
     oracle-instantclient${release}.${update}-basiclite

RUN rm -rf /usr/lib/oracle/${release}.${update}/client64/bin
WORKDIR /usr/lib/oracle/${release}.${update}/client64/lib/
RUN rm -rf *jdbc* *occi* *mysql* *jar

# Get a new image
FROM node:12-buster-slim

# Copy the Instant Client libraries, licenses and config file from the previous image
COPY --from=builder /usr/lib/oracle /usr/lib/oracle
COPY --from=builder /usr/share/oracle /usr/share/oracle
COPY --from=builder /etc/ld.so.conf.d/oracle-instantclient.conf /etc/ld.so.conf.d/oracle-instantclient.conf

RUN apt-get update && apt-get -y upgrade && apt-get -y dist-upgrade && apt-get install -y libaio1 && \
    apt-get -y autoremove && apt-get -y clean && \
    ldconfig

总的来说，这可能不值得这么复杂。查看博客文章中的另一个示例。或者使用Oracle的Dockerfile：https://github.com/oracle/docker-images/tree/master/OracleLinuxDevelopers/oraclelinux7/nodejs/12-oracledb