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Explicitly set uid/gid for postgres/postgres

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The values 999:999 are identical to the current user/group id assigned
in the containers (tested in postgres:9.4, but should be identical for
all versions), but this guarantees that those values will remain the
same even if the groupadd/useradd commands were moved elsewhere in the
Dockerfile, or a new debian:jessie image was pushed.

Tested:
core@test-1 ~ $ docker run -v $(pwd):/origin --rm -it debian:jessie bash -c 'groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres && mkdir /origin/pg && chown -R postgres:postgres /origin/pg'
core@test-1 ~ $ ls -hsal pg/
total 8.0K
4.0K drwxr-xr-x 2  999  999 4.0K Sep 22 12:57 .
4.0K drwxr-xr-x 5 core core 4.0K Sep 22 12:59 ..

core@test-1 ~ $ rm -rf pg/
core@test-1 ~ $ docker run -v $(pwd):/origin --rm -it --user=root postgres:9.4 bash -c 'mkdir /origin/pg && chown -R postgres:postgres /origin/pg'
core@test-1 ~ $ ls -hsal pg/
total 8.0K
4.0K drwxr-xr-x 2  999  999 4.0K Sep 22 12:59 .
4.0K drwxr-xr-x 5 core core 4.0K Sep 22 12:59 ..
This commit is contained in:
Henrik Jonsson
2015-09-22 14:51:58 +02:00
parent 87b8be7e9b
commit 8f8c0bbc52
6 changed files with 12 additions and 12 deletions
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4
9.0/Dockerfile
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@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4

4
9.1/Dockerfile
View File

@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4

4
9.2/Dockerfile
View File

@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4

4
9.3/Dockerfile
View File

@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4

4
9.4/Dockerfile
View File

@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4

4
9.5/Dockerfile
View File

@@ -1,8 +1,8 @@
# vim:set ft=dockerfile: # vim:set ft=dockerfile:
FROM debian:jessie FROM debian:jessie
# add our user and group first to make sure their IDs get assigned consistently, regardless of whatever dependencies get added # explicitly set user/group IDs
RUN groupadd -r postgres && useradd -r -g postgres postgres RUN groupadd -r postgres --gid=999 && useradd -r -g postgres --uid=999 postgres
# grab gosu for easy step-down from root # grab gosu for easy step-down from root
RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4 RUN gpg --keyserver pool.sks-keyservers.net --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4