- base:unstable and base now are exactly the same image
- autopkgtest:unstable is added, with autopkgtest as alias
- lintian:unstable and lintian now are exactly the same image
- dockerbuilder:unstable and dockerbuilder now are exactly the same image

Add autopkgtest:stretch image

See merge request salsa-ci-team/images!42

Check for wrong or missing WORKING_DIR

See merge request salsa-ci-team/images!40

Enhance installation of build-deps

See merge request salsa-ci-team/images!39

See pipeline#29

As salsa-ci-team/pipeline#28 has shown,
there are custom gitlab-ci.yml out there which haven't been updated to
follow the latest version of salsa-ci.yml.

This commit updates the build script to check for one known error and
aborts the build before we waste precious time just to fail at the end
regardless.

Fix buildlog creation

See merge request salsa-ci-team/images!37

Make the process of installing build-deps even more similar to the
one used in pbuilder and sbuild.

Turns out, the aptitude resolver has a different outcome, depending
if a package was just installed via "--unpack" or via "-i --force..."

pbuilder and sbuild use the "-i --force..." way of doing things, so do
the same, to also get the same build-dependencies installed.

* Create separate variables for each part of the logfile name for easier
  string manipulation
* Remove epoch from the package version, the : causes problems and is
  not present in any filename in the Debian ecosystem

This is really a brown paperbag bug. I know better how to do
redirections in bash, but I somehow got duped into using the wrong
way and got burned by it.

Curl should go on gbp not on base

See merge request salsa-ci-team/images!36

Add curl to base image

See merge request salsa-ci-team/images!35

Change build-dependency resolver to be more like sbuild/pbuilder

See merge request salsa-ci-team/images!34

This is safer than the simple shell expression to extract the real
package name.

This brings the package selection in line with how it is done
in the other Dockerfiles.

The current method of using "apt-get build-dep -y ." does only work for
simple dependencies, but not for experimental or *-backports.

For those use cases, apt-get is not smart enough to satisfy the
build-dependencies from additional repositories, even if requested via
versioned build-dependency.

sbuild and pbuilder instead use aptitude and a dummy package to pull in
the build-depdencies with some additional trickery to convince the
resolver to do the Right Thing™.

This commit implements this variant for docker-builder, fixing salsa-ci-team/pipeline#21
and bringing the way builds are done more in line with how the other
package building tools in Debian work.

Doing the builds with this modification has been tested in the
bacula-team repository for the last 4 weeks with successful builds for
Unstable, stretch-backports and Buster.

Add buildlog-checker container

See merge request salsa-ci-team/images!33

Add buildlog feature to docker-builder.sh

See merge request salsa-ci-team/images!32

This container can/is/will be used to consume the buildlog
created by salsa-ci-team/images!32

* Construct a buildlog filename from the changelog
* Pipe the output of dpkg-buildpackage into the buildlog
  (Later to be consumed for example by blhc.)
* Note: "pipefail" is necessary so that the exitcode from
  dpkg-buildpackage is correctly propagated

Set GOPATH varnenv to /root/go

See merge request salsa-ci-team/images!31

Build debian flavors for lintian images.

See merge request salsa-ci-team/images!30

Add support to docker-build.sh for building on jessie.

See merge request salsa-ci-team/images!29

Copy configs from /etc-target to /etc on target phase

See merge request salsa-ci-team/images!25

Add new distro alternative Debian "Jessie"

See merge request salsa-ci-team/images!26

This is useful for work still being done regarding Debian old-stable
release.

Closes issue salsa-ci-team/pipeline#25

Allow forks to build the images on their own registry.

See merge request salsa-ci-team/images!28

Use the CI_REGISTRY_IMAGE as a build-arg for the FROM argument.