mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
6d9e64b27b
I found a bunch of issues where we have "-<opt>" instead of "--<opt>". Also a couple of other issues, like "-notrunc", which is now "--no-trunc" Fixes #5963 Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)
155 lines
6.1 KiB
Markdown
155 lines
6.1 KiB
Markdown
page_title: PostgreSQL service How-To
|
|
page_description: Running and installing a PostgreSQL service
|
|
page_keywords: docker, example, package installation, postgresql
|
|
|
|
# PostgreSQL Service
|
|
|
|
> **Note**:
|
|
>
|
|
> - This example assumes you have Docker running in daemon mode. For
|
|
> more information please see [*Check your Docker
|
|
> install*](../hello_world/#running-examples).
|
|
> - **If you don't like sudo** then see [*Giving non-root
|
|
> access*](/installation/binaries/#dockergroup)
|
|
|
|
## Installing PostgreSQL on Docker
|
|
|
|
Assuming there is no Docker image that suits your needs in [the index](
|
|
http://index.docker.io), you can create one yourself.
|
|
|
|
Start by creating a new Dockerfile:
|
|
|
|
> **Note**:
|
|
> This PostgreSQL setup is for development only purposes. Refer to the
|
|
> PostgreSQL documentation to fine-tune these settings so that it is
|
|
> suitably secure.
|
|
|
|
#
|
|
# example Dockerfile for http://docs.docker.io/examples/postgresql_service/
|
|
#
|
|
|
|
FROM ubuntu
|
|
MAINTAINER SvenDowideit@docker.com
|
|
|
|
# Add the PostgreSQL PGP key to verify their Debian packages.
|
|
# It should be the same key as https://www.postgresql.org/media/keys/ACCC4CF8.asc
|
|
RUN apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B97B0AFCAA1A47F044F244A07FCC7D46ACCC4CF8
|
|
|
|
# Add PostgreSQL's repository. It contains the most recent stable release
|
|
# of PostgreSQL, ``9.3``.
|
|
RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main" > /etc/apt/sources.list.d/pgdg.list
|
|
|
|
# Update the Ubuntu and PostgreSQL repository indexes
|
|
RUN apt-get update
|
|
|
|
# Install ``python-software-properties``, ``software-properties-common`` and PostgreSQL 9.3
|
|
# There are some warnings (in red) that show up during the build. You can hide
|
|
# them by prefixing each apt-get statement with DEBIAN_FRONTEND=noninteractive
|
|
RUN apt-get -y -q install python-software-properties software-properties-common
|
|
RUN apt-get -y -q install postgresql-9.3 postgresql-client-9.3 postgresql-contrib-9.3
|
|
|
|
# Note: The official Debian and Ubuntu images automatically ``apt-get clean``
|
|
# after each ``apt-get``
|
|
|
|
# Run the rest of the commands as the ``postgres`` user created by the ``postgres-9.3`` package when it was ``apt-get installed``
|
|
USER postgres
|
|
|
|
# Create a PostgreSQL role named ``docker`` with ``docker`` as the password and
|
|
# then create a database `docker` owned by the ``docker`` role.
|
|
# Note: here we use ``&&\`` to run commands one after the other - the ``\``
|
|
# allows the RUN command to span multiple lines.
|
|
RUN /etc/init.d/postgresql start &&\
|
|
psql --command "CREATE USER docker WITH SUPERUSER PASSWORD 'docker';" &&\
|
|
createdb -O docker docker
|
|
|
|
# Adjust PostgreSQL configuration so that remote connections to the
|
|
# database are possible.
|
|
RUN echo "host all all 0.0.0.0/0 md5" >> /etc/postgresql/9.3/main/pg_hba.conf
|
|
|
|
# And add ``listen_addresses`` to ``/etc/postgresql/9.3/main/postgresql.conf``
|
|
RUN echo "listen_addresses='*'" >> /etc/postgresql/9.3/main/postgresql.conf
|
|
|
|
# Expose the PostgreSQL port
|
|
EXPOSE 5432
|
|
|
|
# Add VOLUMEs to allow backup of config, logs and databases
|
|
VOLUME ["/etc/postgresql", "/var/log/postgresql", "/var/lib/postgresql"]
|
|
|
|
# Set the default command to run when starting the container
|
|
CMD ["/usr/lib/postgresql/9.3/bin/postgres", "-D", "/var/lib/postgresql/9.3/main", "-c", "config_file=/etc/postgresql/9.3/main/postgresql.conf"]
|
|
|
|
Build an image from the Dockerfile assign it a name.
|
|
|
|
$ sudo docker build -t eg_postgresql .
|
|
|
|
And run the PostgreSQL server container (in the foreground):
|
|
|
|
$ sudo docker run --rm -P --name pg_test eg_postgresql
|
|
|
|
There are 2 ways to connect to the PostgreSQL server. We can use [*Link
|
|
Containers*](/use/working_with_links_names/#working-with-links-names),
|
|
or we can access it from our host (or the network).
|
|
|
|
> **Note**:
|
|
> The `-rm` removes the container and its image when
|
|
> the container exists successfully.
|
|
|
|
### Using container linking
|
|
|
|
Containers can be linked to another container's ports directly using
|
|
`-link remote_name:local_alias` in the client's
|
|
`docker run`. This will set a number of environment
|
|
variables that can then be used to connect:
|
|
|
|
$ sudo docker run --rm -t -i --link pg_test:pg eg_postgresql bash
|
|
|
|
postgres@7ef98b1b7243:/$ psql -h $PG_PORT_5432_TCP_ADDR -p $PG_PORT_5432_TCP_PORT -d docker -U docker --password
|
|
|
|
### Connecting from your host system
|
|
|
|
Assuming you have the postgresql-client installed, you can use the
|
|
host-mapped port to test as well. You need to use `docker ps`
|
|
to find out what local host port the container is mapped to
|
|
first:
|
|
|
|
$ docker ps
|
|
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
|
|
5e24362f27f6 eg_postgresql:latest /usr/lib/postgresql/ About an hour ago Up About an hour 0.0.0.0:49153->5432/tcp pg_test
|
|
$ psql -h localhost -p 49153 -d docker -U docker --password
|
|
|
|
### Testing the database
|
|
|
|
Once you have authenticated and have a `docker =#`
|
|
prompt, you can create a table and populate it.
|
|
|
|
psql (9.3.1)
|
|
Type "help" for help.
|
|
|
|
$ docker=# CREATE TABLE cities (
|
|
docker(# name varchar(80),
|
|
docker(# location point
|
|
docker(# );
|
|
CREATE TABLE
|
|
$ docker=# INSERT INTO cities VALUES ('San Francisco', '(-194.0, 53.0)');
|
|
INSERT 0 1
|
|
$ docker=# select * from cities;
|
|
name | location
|
|
---------------+-----------
|
|
San Francisco | (-194,53)
|
|
(1 row)
|
|
|
|
### Using the container volumes
|
|
|
|
You can use the defined volumes to inspect the PostgreSQL log files and
|
|
to backup your configuration and data:
|
|
|
|
$ docker run --rm --volumes-from pg_test -t -i busybox sh
|
|
|
|
/ # ls
|
|
bin etc lib linuxrc mnt proc run sys usr
|
|
dev home lib64 media opt root sbin tmp var
|
|
/ # ls /etc/postgresql/9.3/main/
|
|
environment pg_hba.conf postgresql.conf
|
|
pg_ctl.conf pg_ident.conf start.conf
|
|
/tmp # ls /var/log
|
|
ldconfig postgresql
|