Re: UBI based container patch

* Do not commit this! *

For the archives....

I reworked the patch to minimise the size of the resulting container. I
managed to knock 52MB off, taking it down to 410MB. In parallel, I also
managed to reduce the size of the Alpine container by about 25MB as I
realised we were shipping some files that aren't required.

To reduce the size of the UBI container, I essentially built a 'ubi-micro'
container, by installing only the RPMs that are actually required into an
alternate root directory from within the standard UBI container, and then
copied that directory into the root of a 'FROM scratch' container.
Unfortunately it seems that the issue is essentially the RPM packaging;
pulling in things like Postfix also pulls in a huge amount of dependencies
that aren't really required (for pgAdmin). Alpine avoids this by minimising
their package dependencies.

So, I think it's not feasible to move to UBI, without adding a lot to the
size of the resulting container.

Here's the patch anyway!

On Mon, Feb 1, 2021 at 4:21 PM Dave Page <dpage(at)pgadmin(dot)org> wrote:

> * Do not commit this! *
>
> The dev team have discussed moving the pgAdmin container to be based on
> Redhat's UBI instead of Alpine Linux. I got some time today to work on
> that, and a patch is attached for interest/archives.
>
> Whilst the build process is arguably cleaner with this patch, plus it
> would be easier to maintain the versions of the PostgreSQL tools that are
> included, unfortunately using UBI takes the size of the container from
> ~278MB to ~462MB.
>
> So... unless someone finds a huge error in the patch that causes this
> bloat, I think we have no choice but to stick with Alpine Linux.
>
> Any thoughts/comments?
>
> --
> Dave Page
> Blog: http://pgsnake.blogspot.com
> Twitter: @pgsnake
>
> EDB: http://www.enterprisedb.com
>
>

--
Dave Page
Blog: http://pgsnake.blogspot.com
Twitter: @pgsnake

EDB: http://www.enterprisedb.com