pgspider griddb fdw +plv8 集成使用

以下是一个简单的griddb fdw 与plv8 的集成，同时添加了node require 模块的支持，可以实现灵活的系统扩展

pgspider plv8 docker镜像制作

  • dockerfile
FROM dalongrong/pgspider:base as build
WORKDIR /app
ENV PLV8_VERSION=v2.3.12
ENV PLV8_VERSION_1=2.3.12
RUN apt-get update && apt-get install -y ca-certificates python curl libc++-dev libc++abi-dev pkg-config
RUN curl -o ${PLV8_VERSION}.tar.gz -SL "https://github.com/plv8/plv8/archive/$PLV8_VERSION.tar.gz" \
    && tar -xzf ${PLV8_VERSION}.tar.gz && mv plv8-${PLV8_VERSION_1} plv8 && cp -rf plv8 /app/postgresql-11.6/contrib/plv8_fdw \
    && cd /app/postgresql-11.6/contrib/plv8_fdw && make static && make install
​
FROM debian:stretch-slim
ENV GOSU_VERSION 1.11
RUN apt-get update && apt-get install -y wget libc++1 libreadline-dev
# explicitly set user/group IDs
RUN set -eux; \
 groupadd -r postgres --gid=999; \
# https://salsa.debian.org/postgresql/postgresql-common/blob/997d842ee744687d99a2b2d95c1083a2615c79e8/debian/postgresql-common.postinst#L32-35
 useradd -r -g postgres --uid=999 --home-dir=/var/lib/postgresql --shell=/bin/bash postgres; \
# also create the postgres user's home directory with appropriate permissions
# see https://github.com/docker-library/postgres/issues/274
 mkdir -p /var/lib/postgresql; \
 chown -R postgres:postgres /var/lib/postgresql
​
RUN wget -O /usr/local/bin/gosu "https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$(dpkg --print-architecture)" \
   && chmod +x /usr/local/bin/gosu \
   && gosu nobody true
# make the "en_US.UTF-8" locale so postgres will be utf-8 enabled by default
RUN set -eux; \
   if [ -f /etc/dpkg/dpkg.cfg.d/docker ]; then \
   # if this file exists, we're likely in "debian:xxx-slim", and locales are thus being excluded so we need to remove that exclusion (since we need locales)
   grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
   sed -ri '/\/usr\/share\/locale/d' /etc/dpkg/dpkg.cfg.d/docker; \
   ! grep -q '/usr/share/locale' /etc/dpkg/dpkg.cfg.d/docker; \
   fi; \
   apt-get update; apt-get install -y locales; rm -rf /var/lib/apt/lists/*; \
   localedef -i en_US -c -f UTF-8 -A /usr/share/locale/locale.alias en_US.UTF-8
ENV LANG en_US.utf8
​
# install "nss_wrapper" in case we need to fake "/etc/passwd" and "/etc/group" (especially for OpenShift)
# https://github.com/docker-library/postgres/issues/359
# https://cwrap.org/nss_wrapper.html
RUN set -eux; \
   apt-get update; \
   apt-get install -y --no-install-recommends libnss-wrapper; \
   rm -rf /var/lib/apt/lists/*
​
RUN mkdir /docker-entrypoint-initdb.d
COPY --from=build /usr/local/pgspider /usr/local/pgspider
RUN sed -ri "s!^#?(listen_addresses)\s*=\s*\S+.*!\1 = '*'!" /usr/local/pgspider/share/postgresql/postgresql.conf.sample; \
   grep -F "listen_addresses = '*'" /usr/local/pgspider/share/postgresql/postgresql.conf.sample
RUN mkdir -p /var/run/postgresql && chown -R postgres:postgres /var/run/postgresql && chmod 2777 /var/run/postgresql
ENV PATH $PATH:/usr/local/pgspider/bin
ENV PGDATA /var/lib/postgresql/data
RUN mkdir -p "$PGDATA" && chown -R postgres:postgres "$PGDATA" && chmod 777 "$PGDATA"
VOLUME /var/lib/postgresql/data
COPY docker-entrypoint.sh /usr/local/bin/
RUN ln -s usr/local/bin/docker-entrypoint.sh / # backwards compat
ENTRYPOINT ["docker-entrypoint.sh"]
​
EXPOSE 5432
CMD ["postgres"]

说明，已经push docker hub 了，同时添加了mysql,sqlite,oracle,tds,influxdb,mongodb 等的支持

使用

  • docker-compose 环境
version: "3"
services: 
  pgspider-griddb:
    image: dalongrong/pgspider:griddb-4.2-plv8
    environment: 
    - "POSTGRES_PASSWORD=dalong"
    ports: 
    - "5432:5432"
  griddb-java:
    build: 
      context: ./
      dockerfile: ./Dockerfile-java
    environment: 
    - "MEMBER_ADDR=griddb:10001"
  griddb:
    build: ./
    volumes: 
    - "./log:/var/lib/gridstore/log"
    ports:
    - "10001:10001"
    - "10010:10010" 
    - "10020:10020" 
    - "10030:10030" 
    - "10040:10040"
    - "10050:10050"
    - "10080:10080"
    - "20001:20001"
  • 项目说明
    包含了griddb ,一个java 应用，写入demo 数据的，一个包含plv8 以及griddb fdw 的pg，以及nodejs应用提供node require
    支持以及数据查询，详细代码参考https://github.com/rongfengliang/plv8-griddb-learning
  • 使用
    启动griddb 以及pg
 
docker-compose up -d griddb pgspider-griddb
  • 启动java 应用，初始化数据
docker-compose up griddb-java
  • 使用扩展griddb
griddb fdw:
CREATE EXTENSION griddb_fdw;
CREATE SERVER griddb_svr FOREIGN DATA WRAPPER griddb_fdw OPTIONS(notification_member 'griddb:10001',clustername 'defaultCluster');
CREATE USER MAPPING FOR public SERVER griddb_svr OPTIONS(username 'admin', password 'admin');
IMPORT FOREIGN SCHEMA griddb_schema FROM SERVER griddb_svr INTO public;
select * from col01;
  • 集成plv8
cd node-app && yarn && node app.js
  • 修改session 配置重启pg
    为了方便每个用户集成pg 的plv8 扩展的require 模块，需要重启
 
ALTER DATABASE postgres SET "plv8.start_proc" TO "v8.plv8_init";
  • 创建函数
CREATE or replace FUNCTION shortid() RETURNS text AS
$$
   const shortid = require('shortid');
   const result = shortid.generate();
   return result;
$$
LANGUAGE plv8;
  • 插入数据
    nodejs 应用
 
cd node-app && yarn && node index.js

psql 管理工具
pgspider griddb fdw +plv8 集成使用_编程

 

 

说明你

关于griddb 以及plv8 的可以参考官方文档，或者我写的一些简单的文章

参考资料

https://github.com/rongfengliang/plv8-griddb-learning
https://hub.docker.com/repository/docker/dalongrong/pgspider