pgspider gzip fdw试用(集成gzip+http+graphql-engine)

gzip 也是一个在实际中比较有用的处理工具，可以减少数据传输，以下是集成gzip http 以及plv8 的处理

gzip Docker 镜像

  • Dockerfile
FROM dalongrong/pgspider:base as build
WORKDIR /app
RUN apt-get update && apt-get install -y libssl-dev libz-dev pkg-config
RUN git clone https://github.com/pramsey/pgsql-gzip.git /app/postgresql-11.6/contrib/pgsql-gzip
RUN cd /app/postgresql-11.6/contrib/pgsql-gzip && make && make install
​
FROM debian:stretch-slim
ENV GOSU_VERSION 1.11
RUN apt-get update && apt-get install -y wget libssl-dev libz-dev 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"]
  • 集成http 的docker 镜像
FROM dalongrong/pgspider:base as build
WORKDIR /app
RUN apt-get update && apt-get install -y libssl-dev libz-dev pkg-config libcurl4-openssl-dev
RUN git clone https://github.com/pramsey/pgsql-gzip.git /app/postgresql-11.6/contrib/pgsql-gzip
RUN git clone https://github.com/pramsey/pgsql-http.git /app/postgresql-11.6/contrib/pgsql-http
RUN cd /app/postgresql-11.6/contrib/pgsql-gzip && make && make install
RUN cd /app/postgresql-11.6/contrib/pgsql-http && make && make install
​
​
FROM debian:stretch-slim
ENV GOSU_VERSION 1.11
RUN apt-get update && apt-get install -y wget libssl-dev libcurl4-openssl-dev libz-dev 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"]
 
  • 集成plv8 的镜像
    基于已有的基础镜像添加plv8 支持，因为构建方式使用了静态连接库
 
FROM dalongrong/pgspider:gzip-http
RUN apt-get update && apt-get install -y libc++1
COPY --from=dalongrong/pgspider:plv8 /usr/local/pgspider/lib/postgresql/plv8-2.3.12.so /usr/local/pgspider/lib/postgresql/plv8-2.3.12.so
COPY --from=dalongrong/pgspider:plv8 /usr/local/pgspider/share/postgresql/extension /usr/local/pgspider/share/postgresql/extension

集成使用

  • docker-compose 文件
version: "3"
services: 
  graphql-engine:
    image: hasura/graphql-engine:v1.1.0
    ports:
    - "8080:8080"
    environment:
      HASURA_GRAPHQL_DATABASE_URL: postgres://postgres:dalong@pgspider-fdw:5432/postgres
      HASURA_GRAPHQL_ENABLE_CONSOLE: "true" # set to "false" to disable console
      HASURA_GRAPHQL_ENABLED_LOG_TYPES: startup, http-log, webhook-log, websocket-log, query-log
  pgspider-fdw:
    image: dalongrong/pgspider:gzip-http-plv8
    ports: 
    - "5432:5432"
    environment: 
    - "POSTGRES_PASSWORD=dalong"
  • 启动
docker-compose up -d
  • 使用扩展
// create extension
create extension plv8;
create extension http;
create extension gzip;
// create fucntion
CREATE OR REPLACE FUNCTION plv8_eval_test()
RETURNS text AS $$
  var result = eval("1+2")
  return JSON.stringify(result);
$$ LANGUAGE plv8 IMMUTABLE STRICT;
// select
 create table appdemos as 
  select encode(gzip(content),'hex') as gzip ,plv8_eval_test() FROM http_get('http://httpbin.org/ip');
  • hasura 集成

 

 

说明

以上是几个扩展的集成，我们可以灵活的扩展pg 对于数据的支持能力

参考资料

https://github.com/rongfengliang/pgspider-docker
https://github.com/hasura/graphql-engine/releases
https://github.com/pramsey/pgsql-gzip
https://github.com/pramsey/pgsql-http
https://hub.docker.com/repository/docker/dalongrong/pgspider

posted on 2020-02-27 16:40  荣锋亮  阅读(446)  评论(0)  编辑  收藏  举报

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